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/Problem13_label29_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:09:13,513 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:09:13,516 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:09:13,533 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:09:13,534 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:09:13,535 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:09:13,536 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:09:13,539 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:09:13,543 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:09:13,544 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:09:13,552 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:09:13,552 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:09:13,553 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:09:13,556 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:09:13,559 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:09:13,560 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:09:13,561 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:09:13,565 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:09:13,569 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:09:13,572 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:09:13,573 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:09:13,576 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:09:13,580 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:09:13,580 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:09:13,581 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:09:13,582 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:09:13,582 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:09:13,584 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:09:13,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:09:13,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:09:13,586 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:09:13,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 14:09:13,587 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 14:09:13,587 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 14:09:13,589 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 14:09:13,590 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 14:09:13,590 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 14:09:13,621 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:09:13,622 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:09:13,622 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:09:13,623 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:09:13,623 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:09:13,623 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:09:13,624 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:09:13,625 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:09:13,625 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:09:13,625 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:09:13,625 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:09:13,626 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:09:13,626 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:09:13,626 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:09:13,626 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:09:13,627 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:09:13,627 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:09:13,627 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:09:13,627 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:09:13,628 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:09:13,628 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:09:13,628 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:09:13,628 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:09:13,628 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:09:13,629 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:09:13,630 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:09:13,630 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:09:13,630 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:09:13,684 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:09:13,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:09:13,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:09:13,708 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:09:13,708 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:09:13,709 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label29_false-unreach-call.c [2018-10-24 14:09:13,785 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b7450233f/b5c0028db45342c8843c97f931136fbd/FLAG4b56c6088 [2018-10-24 14:09:14,539 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:09:14,540 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label29_false-unreach-call.c [2018-10-24 14:09:14,577 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b7450233f/b5c0028db45342c8843c97f931136fbd/FLAG4b56c6088 [2018-10-24 14:09:14,597 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b7450233f/b5c0028db45342c8843c97f931136fbd [2018-10-24 14:09:14,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:09:14,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:09:14,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:09:14,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:09:14,616 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:09:14,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:09:14" (1/1) ... [2018-10-24 14:09:14,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a445e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:14, skipping insertion in model container [2018-10-24 14:09:14,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:09:14" (1/1) ... [2018-10-24 14:09:14,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:09:14,799 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:09:16,296 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:09:16,301 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:09:17,034 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:09:17,072 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:09:17,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17 WrapperNode [2018-10-24 14:09:17,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:09:17,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:09:17,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:09:17,074 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:09:17,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17" (1/1) ... [2018-10-24 14:09:17,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17" (1/1) ... [2018-10-24 14:09:17,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:09:17,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:09:17,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:09:17,885 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:09:17,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17" (1/1) ... [2018-10-24 14:09:17,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17" (1/1) ... [2018-10-24 14:09:17,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17" (1/1) ... [2018-10-24 14:09:17,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17" (1/1) ... [2018-10-24 14:09:18,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17" (1/1) ... [2018-10-24 14:09:18,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17" (1/1) ... [2018-10-24 14:09:18,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17" (1/1) ... [2018-10-24 14:09:18,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:09:18,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:09:18,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:09:18,386 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:09:18,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17" (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 14:09:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:09:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:09:18,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:09:33,097 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:09:33,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:09:33 BoogieIcfgContainer [2018-10-24 14:09:33,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:09:33,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:09:33,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:09:33,103 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:09:33,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:09:14" (1/3) ... [2018-10-24 14:09:33,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c891fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:09:33, skipping insertion in model container [2018-10-24 14:09:33,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:09:17" (2/3) ... [2018-10-24 14:09:33,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c891fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:09:33, skipping insertion in model container [2018-10-24 14:09:33,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:09:33" (3/3) ... [2018-10-24 14:09:33,108 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label29_false-unreach-call.c [2018-10-24 14:09:33,118 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:09:33,129 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:09:33,147 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:09:33,191 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:09:33,192 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:09:33,192 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:09:33,192 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:09:33,192 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:09:33,192 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:09:33,192 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:09:33,193 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:09:33,193 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:09:33,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 14:09:33,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-24 14:09:33,237 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:33,238 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:09:33,240 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:33,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:33,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1961166346, now seen corresponding path program 1 times [2018-10-24 14:09:33,249 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:33,250 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:33,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:33,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:33,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:33,615 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 14:09:33,619 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 14:09:33,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:09:33,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:09:33,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:09:33,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:09:33,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:09:33,646 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-24 14:09:47,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:47,132 INFO L93 Difference]: Finished difference Result 3896 states and 7286 transitions. [2018-10-24 14:09:47,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:09:47,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-10-24 14:09:47,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:47,181 INFO L225 Difference]: With dead ends: 3896 [2018-10-24 14:09:47,182 INFO L226 Difference]: Without dead ends: 2790 [2018-10-24 14:09:47,192 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 14:09:47,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2018-10-24 14:09:47,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 1945. [2018-10-24 14:09:47,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2018-10-24 14:09:47,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 3412 transitions. [2018-10-24 14:09:47,356 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 3412 transitions. Word has length 15 [2018-10-24 14:09:47,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:47,357 INFO L481 AbstractCegarLoop]: Abstraction has 1945 states and 3412 transitions. [2018-10-24 14:09:47,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:09:47,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 3412 transitions. [2018-10-24 14:09:47,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-24 14:09:47,360 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:47,361 INFO L375 BasicCegarLoop]: trace histogram [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 14:09:47,361 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:47,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:47,362 INFO L82 PathProgramCache]: Analyzing trace with hash 705130049, now seen corresponding path program 1 times [2018-10-24 14:09:47,362 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:47,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:47,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:47,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:47,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:47,928 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-24 14:09:48,054 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:09:48,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:09:48,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:09:48,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:09:48,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:09:48,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:09:48,058 INFO L87 Difference]: Start difference. First operand 1945 states and 3412 transitions. Second operand 5 states. [2018-10-24 14:10:04,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:04,747 INFO L93 Difference]: Finished difference Result 7061 states and 12475 transitions. [2018-10-24 14:10:04,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:10:04,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2018-10-24 14:10:04,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:04,772 INFO L225 Difference]: With dead ends: 7061 [2018-10-24 14:10:04,773 INFO L226 Difference]: Without dead ends: 5118 [2018-10-24 14:10:04,777 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:10:04,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5118 states. [2018-10-24 14:10:04,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5118 to 5117. [2018-10-24 14:10:04,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5117 states. [2018-10-24 14:10:04,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 7612 transitions. [2018-10-24 14:10:04,876 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 7612 transitions. Word has length 81 [2018-10-24 14:10:04,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:04,876 INFO L481 AbstractCegarLoop]: Abstraction has 5117 states and 7612 transitions. [2018-10-24 14:10:04,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:10:04,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 7612 transitions. [2018-10-24 14:10:04,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-24 14:10:04,883 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:04,883 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:10:04,884 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:04,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:04,884 INFO L82 PathProgramCache]: Analyzing trace with hash 795908766, now seen corresponding path program 1 times [2018-10-24 14:10:04,884 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:04,884 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:04,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:04,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:04,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:10:05,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:10:05,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:10:05,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:10:05,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:10:05,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:10:05,045 INFO L87 Difference]: Start difference. First operand 5117 states and 7612 transitions. Second operand 3 states. [2018-10-24 14:10:11,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:11,295 INFO L93 Difference]: Finished difference Result 10220 states and 15517 transitions. [2018-10-24 14:10:11,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:10:11,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2018-10-24 14:10:11,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:11,323 INFO L225 Difference]: With dead ends: 10220 [2018-10-24 14:10:11,324 INFO L226 Difference]: Without dead ends: 5893 [2018-10-24 14:10:11,331 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 14:10:11,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2018-10-24 14:10:11,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5892. [2018-10-24 14:10:11,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5892 states. [2018-10-24 14:10:11,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 7437 transitions. [2018-10-24 14:10:11,439 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 7437 transitions. Word has length 141 [2018-10-24 14:10:11,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:11,440 INFO L481 AbstractCegarLoop]: Abstraction has 5892 states and 7437 transitions. [2018-10-24 14:10:11,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:10:11,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 7437 transitions. [2018-10-24 14:10:11,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-24 14:10:11,453 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:11,456 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:10:11,456 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:11,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:11,456 INFO L82 PathProgramCache]: Analyzing trace with hash -497336603, now seen corresponding path program 1 times [2018-10-24 14:10:11,457 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:11,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:11,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:11,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:11,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 25 proven. 66 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-24 14:10:11,883 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:10:11,883 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 14:10:11,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:12,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:10:12,157 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:10:12,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:10:12,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 14:10:12,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:10:12,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:10:12,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:10:12,191 INFO L87 Difference]: Start difference. First operand 5892 states and 7437 transitions. Second operand 5 states. [2018-10-24 14:10:27,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:27,505 INFO L93 Difference]: Finished difference Result 20501 states and 27031 transitions. [2018-10-24 14:10:27,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:10:27,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 180 [2018-10-24 14:10:27,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:27,562 INFO L225 Difference]: With dead ends: 20501 [2018-10-24 14:10:27,563 INFO L226 Difference]: Without dead ends: 15399 [2018-10-24 14:10:27,574 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:10:27,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15399 states. [2018-10-24 14:10:27,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15399 to 10627. [2018-10-24 14:10:27,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10627 states. [2018-10-24 14:10:27,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10627 states to 10627 states and 13141 transitions. [2018-10-24 14:10:27,841 INFO L78 Accepts]: Start accepts. Automaton has 10627 states and 13141 transitions. Word has length 180 [2018-10-24 14:10:27,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:27,842 INFO L481 AbstractCegarLoop]: Abstraction has 10627 states and 13141 transitions. [2018-10-24 14:10:27,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:10:27,842 INFO L276 IsEmpty]: Start isEmpty. Operand 10627 states and 13141 transitions. [2018-10-24 14:10:27,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-10-24 14:10:27,844 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:27,845 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:10:27,845 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:27,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:27,845 INFO L82 PathProgramCache]: Analyzing trace with hash -280236202, now seen corresponding path program 1 times [2018-10-24 14:10:27,846 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:27,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:27,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:27,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:27,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:28,288 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-24 14:10:28,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:10:28,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:10:28,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:10:28,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:10:28,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:10:28,290 INFO L87 Difference]: Start difference. First operand 10627 states and 13141 transitions. Second operand 3 states. [2018-10-24 14:10:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:35,757 INFO L93 Difference]: Finished difference Result 28343 states and 35767 transitions. [2018-10-24 14:10:35,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:10:35,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2018-10-24 14:10:35,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:35,808 INFO L225 Difference]: With dead ends: 28343 [2018-10-24 14:10:35,808 INFO L226 Difference]: Without dead ends: 18506 [2018-10-24 14:10:35,824 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 14:10:35,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18506 states. [2018-10-24 14:10:36,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18506 to 18505. [2018-10-24 14:10:36,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18505 states. [2018-10-24 14:10:36,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18505 states to 18505 states and 22008 transitions. [2018-10-24 14:10:36,124 INFO L78 Accepts]: Start accepts. Automaton has 18505 states and 22008 transitions. Word has length 191 [2018-10-24 14:10:36,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:36,125 INFO L481 AbstractCegarLoop]: Abstraction has 18505 states and 22008 transitions. [2018-10-24 14:10:36,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:10:36,125 INFO L276 IsEmpty]: Start isEmpty. Operand 18505 states and 22008 transitions. [2018-10-24 14:10:36,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-10-24 14:10:36,129 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:36,129 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 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 14:10:36,130 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:36,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:36,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1522111001, now seen corresponding path program 1 times [2018-10-24 14:10:36,130 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:36,131 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:36,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:36,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:36,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-24 14:10:36,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:10:36,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:10:36,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:10:36,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:10:36,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:10:36,438 INFO L87 Difference]: Start difference. First operand 18505 states and 22008 transitions. Second operand 3 states. [2018-10-24 14:10:43,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:43,269 INFO L93 Difference]: Finished difference Result 36218 states and 43220 transitions. [2018-10-24 14:10:43,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:10:43,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2018-10-24 14:10:43,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:43,304 INFO L225 Difference]: With dead ends: 36218 [2018-10-24 14:10:43,305 INFO L226 Difference]: Without dead ends: 18503 [2018-10-24 14:10:43,322 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:10:43,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18503 states. [2018-10-24 14:10:43,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18503 to 18502. [2018-10-24 14:10:43,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18502 states. [2018-10-24 14:10:43,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18502 states to 18502 states and 21047 transitions. [2018-10-24 14:10:43,557 INFO L78 Accepts]: Start accepts. Automaton has 18502 states and 21047 transitions. Word has length 229 [2018-10-24 14:10:43,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:43,558 INFO L481 AbstractCegarLoop]: Abstraction has 18502 states and 21047 transitions. [2018-10-24 14:10:43,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:10:43,558 INFO L276 IsEmpty]: Start isEmpty. Operand 18502 states and 21047 transitions. [2018-10-24 14:10:43,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-10-24 14:10:43,565 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:43,566 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:10:43,566 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:43,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:43,567 INFO L82 PathProgramCache]: Analyzing trace with hash -14624985, now seen corresponding path program 1 times [2018-10-24 14:10:43,567 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:43,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:43,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:43,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:43,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:44,062 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-24 14:10:44,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:10:44,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:10:44,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:10:44,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:10:44,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:10:44,064 INFO L87 Difference]: Start difference. First operand 18502 states and 21047 transitions. Second operand 4 states. [2018-10-24 14:10:56,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:56,974 INFO L93 Difference]: Finished difference Result 66979 states and 76824 transitions. [2018-10-24 14:10:56,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:10:56,981 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 310 [2018-10-24 14:10:56,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:57,060 INFO L225 Difference]: With dead ends: 66979 [2018-10-24 14:10:57,061 INFO L226 Difference]: Without dead ends: 47675 [2018-10-24 14:10:57,082 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 14:10:57,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47675 states. [2018-10-24 14:10:57,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47675 to 46857. [2018-10-24 14:10:57,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46857 states. [2018-10-24 14:10:57,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46857 states to 46857 states and 51707 transitions. [2018-10-24 14:10:57,593 INFO L78 Accepts]: Start accepts. Automaton has 46857 states and 51707 transitions. Word has length 310 [2018-10-24 14:10:57,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:57,594 INFO L481 AbstractCegarLoop]: Abstraction has 46857 states and 51707 transitions. [2018-10-24 14:10:57,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:10:57,595 INFO L276 IsEmpty]: Start isEmpty. Operand 46857 states and 51707 transitions. [2018-10-24 14:10:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2018-10-24 14:10:57,606 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:57,607 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 14:10:57,607 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:57,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:57,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1362845449, now seen corresponding path program 1 times [2018-10-24 14:10:57,608 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:57,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:57,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:57,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:57,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:58,041 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 14:10:58,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:10:58,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:10:58,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:10:58,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:10:58,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:10:58,043 INFO L87 Difference]: Start difference. First operand 46857 states and 51707 transitions. Second operand 5 states. [2018-10-24 14:11:24,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:11:24,513 INFO L93 Difference]: Finished difference Result 186967 states and 206415 transitions. [2018-10-24 14:11:24,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:11:24,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 372 [2018-10-24 14:11:24,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:11:24,704 INFO L225 Difference]: With dead ends: 186967 [2018-10-24 14:11:24,704 INFO L226 Difference]: Without dead ends: 140900 [2018-10-24 14:11:24,753 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:11:24,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140900 states. [2018-10-24 14:11:25,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140900 to 128897. [2018-10-24 14:11:25,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128897 states. [2018-10-24 14:11:25,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128897 states to 128897 states and 140147 transitions. [2018-10-24 14:11:25,960 INFO L78 Accepts]: Start accepts. Automaton has 128897 states and 140147 transitions. Word has length 372 [2018-10-24 14:11:25,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:11:25,960 INFO L481 AbstractCegarLoop]: Abstraction has 128897 states and 140147 transitions. [2018-10-24 14:11:25,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:11:25,960 INFO L276 IsEmpty]: Start isEmpty. Operand 128897 states and 140147 transitions. [2018-10-24 14:11:25,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-10-24 14:11:25,974 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:11:25,974 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 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 14:11:25,974 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:11:25,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:11:25,975 INFO L82 PathProgramCache]: Analyzing trace with hash 42662170, now seen corresponding path program 1 times [2018-10-24 14:11:25,975 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:11:25,975 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:11:25,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:25,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:11:25,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:11:27,122 WARN L179 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-10-24 14:11:27,224 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-24 14:11:27,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:11:27,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:11:27,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:11:27,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:11:27,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:11:27,226 INFO L87 Difference]: Start difference. First operand 128897 states and 140147 transitions. Second operand 4 states. [2018-10-24 14:11:40,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:11:40,396 INFO L93 Difference]: Finished difference Result 294862 states and 320990 transitions. [2018-10-24 14:11:40,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:11:40,404 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 400 [2018-10-24 14:11:40,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:11:40,637 INFO L225 Difference]: With dead ends: 294862 [2018-10-24 14:11:40,637 INFO L226 Difference]: Without dead ends: 166755 [2018-10-24 14:11:40,721 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:11:40,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166755 states. [2018-10-24 14:11:43,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166755 to 164358. [2018-10-24 14:11:43,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164358 states. [2018-10-24 14:11:43,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164358 states to 164358 states and 175545 transitions. [2018-10-24 14:11:43,236 INFO L78 Accepts]: Start accepts. Automaton has 164358 states and 175545 transitions. Word has length 400 [2018-10-24 14:11:43,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:11:43,237 INFO L481 AbstractCegarLoop]: Abstraction has 164358 states and 175545 transitions. [2018-10-24 14:11:43,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:11:43,238 INFO L276 IsEmpty]: Start isEmpty. Operand 164358 states and 175545 transitions. [2018-10-24 14:11:43,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2018-10-24 14:11:43,262 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:11:43,263 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:43,263 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:11:43,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:11:43,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1917767430, now seen corresponding path program 1 times [2018-10-24 14:11:43,264 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:11:43,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:11:43,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:43,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:11:43,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:11:43,705 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2018-10-24 14:11:43,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:11:43,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:11:43,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:11:43,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:11:43,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:11:43,707 INFO L87 Difference]: Start difference. First operand 164358 states and 175545 transitions. Second operand 3 states. [2018-10-24 14:11:48,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:11:48,087 INFO L93 Difference]: Finished difference Result 326335 states and 348424 transitions. [2018-10-24 14:11:48,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:11:48,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 498 [2018-10-24 14:11:48,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:11:48,266 INFO L225 Difference]: With dead ends: 326335 [2018-10-24 14:11:48,266 INFO L226 Difference]: Without dead ends: 162765 [2018-10-24 14:11:48,354 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:11:48,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162765 states. [2018-10-24 14:11:50,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162765 to 162765. [2018-10-24 14:11:50,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162765 states. [2018-10-24 14:11:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162765 states to 162765 states and 173651 transitions. [2018-10-24 14:11:51,128 INFO L78 Accepts]: Start accepts. Automaton has 162765 states and 173651 transitions. Word has length 498 [2018-10-24 14:11:51,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:11:51,129 INFO L481 AbstractCegarLoop]: Abstraction has 162765 states and 173651 transitions. [2018-10-24 14:11:51,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:11:51,130 INFO L276 IsEmpty]: Start isEmpty. Operand 162765 states and 173651 transitions. [2018-10-24 14:11:51,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2018-10-24 14:11:51,147 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:11:51,148 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:51,148 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:11:51,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:11:51,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1448449607, now seen corresponding path program 1 times [2018-10-24 14:11:51,148 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:11:51,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:11:51,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:51,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:11:51,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:11:51,646 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2018-10-24 14:11:51,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:11:51,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:11:51,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:11:51,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:11:51,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:11:51,648 INFO L87 Difference]: Start difference. First operand 162765 states and 173651 transitions. Second operand 4 states. [2018-10-24 14:12:03,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:12:03,360 INFO L93 Difference]: Finished difference Result 349192 states and 372453 transitions. [2018-10-24 14:12:03,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:12:03,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 512 [2018-10-24 14:12:03,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:12:03,573 INFO L225 Difference]: With dead ends: 349192 [2018-10-24 14:12:03,573 INFO L226 Difference]: Without dead ends: 187217 [2018-10-24 14:12:03,655 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 14:12:03,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187217 states. [2018-10-24 14:12:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187217 to 166704. [2018-10-24 14:12:05,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166704 states. [2018-10-24 14:12:05,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166704 states to 166704 states and 176539 transitions. [2018-10-24 14:12:05,182 INFO L78 Accepts]: Start accepts. Automaton has 166704 states and 176539 transitions. Word has length 512 [2018-10-24 14:12:05,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:12:05,183 INFO L481 AbstractCegarLoop]: Abstraction has 166704 states and 176539 transitions. [2018-10-24 14:12:05,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:12:05,183 INFO L276 IsEmpty]: Start isEmpty. Operand 166704 states and 176539 transitions. [2018-10-24 14:12:05,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2018-10-24 14:12:05,208 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:12:05,209 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 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] [2018-10-24 14:12:05,209 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:12:05,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:12:05,209 INFO L82 PathProgramCache]: Analyzing trace with hash 394135499, now seen corresponding path program 1 times [2018-10-24 14:12:05,209 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:12:05,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:12:05,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:05,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:12:05,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:12:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 577 proven. 66 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-24 14:12:07,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:12:07,629 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 14:12:07,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:12:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:12:07,784 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:12:08,390 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 617 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2018-10-24 14:12:08,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:12:08,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-10-24 14:12:08,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 14:12:08,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 14:12:08,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-10-24 14:12:08,412 INFO L87 Difference]: Start difference. First operand 166704 states and 176539 transitions. Second operand 9 states. [2018-10-24 14:12:11,992 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 8 Received shutdown request... [2018-10-24 14:13:07,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 14:13:07,324 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:13:07,329 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:13:07,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:13:07 BoogieIcfgContainer [2018-10-24 14:13:07,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:13:07,330 INFO L168 Benchmark]: Toolchain (without parser) took 232721.09 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 14:13:07,332 INFO L168 Benchmark]: CDTParser took 0.23 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 14:13:07,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2461.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:13:07,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 811.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 818.9 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-24 14:13:07,334 INFO L168 Benchmark]: Boogie Preprocessor took 500.72 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: 69.0 MB). Peak memory consumption was 69.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:13:07,335 INFO L168 Benchmark]: RCFGBuilder took 14712.77 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 232.8 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 38.8 MB). Peak memory consumption was 601.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:13:07,336 INFO L168 Benchmark]: TraceAbstraction took 214229.83 ms. Allocated memory was 2.6 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 762.5 MB. Max. memory is 7.1 GB. [2018-10-24 14:13:07,341 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 2461.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 811.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 818.9 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 500.72 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: 69.0 MB). Peak memory consumption was 69.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14712.77 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 232.8 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 38.8 MB). Peak memory consumption was 601.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214229.83 ms. Allocated memory was 2.6 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 762.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 54). Cancelled while BasicCegarLoop was constructing difference of abstraction (166704states) and FLOYD_HOARE automaton (currently 18 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (425021 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 214.1s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 195.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10663 SDtfs, 38891 SDslu, 3707 SDs, 0 SdLazy, 79874 SolverSat, 17877 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 161.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 816 GetRequests, 769 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166704occurred 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: 9.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 41352 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 4237 NumberOfCodeBlocks, 4237 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4223 ConstructedInterpolants, 90 QuantifiedInterpolants, 4145035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1022 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 5196/5328 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown