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_label57_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:31:33,643 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:31:33,647 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:31:33,666 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:31:33,666 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:31:33,667 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:31:33,668 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:31:33,670 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:31:33,673 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:31:33,676 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:31:33,677 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:31:33,678 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:31:33,679 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:31:33,681 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:31:33,686 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:31:33,686 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:31:33,687 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:31:33,691 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:31:33,698 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:31:33,703 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:31:33,704 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:31:33,705 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:31:33,707 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-26 21:31:33,715 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 [2018-10-26 21:31:33,734 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:31:33,734 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:31:33,735 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:31:33,735 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:31:33,736 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:31:33,736 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:31:33,736 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 21:31:33,737 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:31:33,737 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:31:33,737 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:31:33,737 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:31:33,738 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:31:33,738 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:31:33,738 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:31:33,738 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:31:33,738 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:31:33,739 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:31:33,739 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:31:33,739 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:31:33,739 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:31:33,739 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:31:33,740 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:31:33,740 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:31:33,740 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 21:31:33,740 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:31:33,740 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:31:33,741 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:31:33,741 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 21:31:33,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:31:33,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:31:33,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:31:33,830 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:31:33,830 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:31:33,831 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label57_true-unreach-call.c [2018-10-26 21:31:33,897 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f18236e8b/9e34d63b224c4553b2156746b9dcfb69/FLAG63163630f [2018-10-26 21:31:34,760 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:31:34,761 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label57_true-unreach-call.c [2018-10-26 21:31:34,791 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f18236e8b/9e34d63b224c4553b2156746b9dcfb69/FLAG63163630f [2018-10-26 21:31:34,806 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f18236e8b/9e34d63b224c4553b2156746b9dcfb69 [2018-10-26 21:31:34,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:31:34,820 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 21:31:34,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:31:34,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:31:34,825 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:31:34,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:31:34" (1/1) ... [2018-10-26 21:31:34,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441f49ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:34, skipping insertion in model container [2018-10-26 21:31:34,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:31:34" (1/1) ... [2018-10-26 21:31:34,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:31:35,037 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:31:36,604 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:31:36,610 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:31:37,331 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:31:37,368 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:31:37,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37 WrapperNode [2018-10-26 21:31:37,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:31:37,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:31:37,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:31:37,370 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:31:37,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37" (1/1) ... [2018-10-26 21:31:37,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37" (1/1) ... [2018-10-26 21:31:38,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:31:38,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:31:38,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:31:38,173 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:31:38,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37" (1/1) ... [2018-10-26 21:31:38,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37" (1/1) ... [2018-10-26 21:31:38,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37" (1/1) ... [2018-10-26 21:31:38,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37" (1/1) ... [2018-10-26 21:31:38,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37" (1/1) ... [2018-10-26 21:31:38,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37" (1/1) ... [2018-10-26 21:31:38,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37" (1/1) ... [2018-10-26 21:31:38,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:31:38,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:31:38,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:31:38,646 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:31:38,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37" (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 [2018-10-26 21:31:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 21:31:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:31:38,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:31:53,129 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:31:53,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:31:53 BoogieIcfgContainer [2018-10-26 21:31:53,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:31:53,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:31:53,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:31:53,135 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:31:53,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:31:34" (1/3) ... [2018-10-26 21:31:53,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ff8ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:31:53, skipping insertion in model container [2018-10-26 21:31:53,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:31:37" (2/3) ... [2018-10-26 21:31:53,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ff8ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:31:53, skipping insertion in model container [2018-10-26 21:31:53,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:31:53" (3/3) ... [2018-10-26 21:31:53,139 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label57_true-unreach-call.c [2018-10-26 21:31:53,148 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:31:53,158 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:31:53,174 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:31:53,230 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:31:53,231 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:31:53,231 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:31:53,231 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:31:53,231 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:31:53,231 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:31:53,231 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:31:53,232 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:31:53,232 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:31:53,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-26 21:31:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-26 21:31:53,300 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:31:53,301 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:31:53,304 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:31:53,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:31:53,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1515441142, now seen corresponding path program 1 times [2018-10-26 21:31:53,310 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:31:53,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:31:53,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:31:53,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:31:53,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:31:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:31:53,924 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-26 21:31:54,768 WARN L179 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-26 21:31:54,930 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 4 [2018-10-26 21:31:55,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:31:55,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:31:55,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:31:55,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:31:55,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:31:55,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:31:55,165 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 5 states. [2018-10-26 21:32:13,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:32:13,943 INFO L93 Difference]: Finished difference Result 4624 states and 8784 transitions. [2018-10-26 21:32:13,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:32:13,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2018-10-26 21:32:13,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:32:14,002 INFO L225 Difference]: With dead ends: 4624 [2018-10-26 21:32:14,003 INFO L226 Difference]: Without dead ends: 3515 [2018-10-26 21:32:14,015 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:32:14,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2018-10-26 21:32:14,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3514. [2018-10-26 21:32:14,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3514 states. [2018-10-26 21:32:14,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3514 states to 3514 states and 5233 transitions. [2018-10-26 21:32:14,208 INFO L78 Accepts]: Start accepts. Automaton has 3514 states and 5233 transitions. Word has length 62 [2018-10-26 21:32:14,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:32:14,209 INFO L481 AbstractCegarLoop]: Abstraction has 3514 states and 5233 transitions. [2018-10-26 21:32:14,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:32:14,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3514 states and 5233 transitions. [2018-10-26 21:32:14,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-10-26 21:32:14,219 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:32:14,220 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:32:14,220 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:32:14,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:32:14,220 INFO L82 PathProgramCache]: Analyzing trace with hash 342361045, now seen corresponding path program 1 times [2018-10-26 21:32:14,221 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:32:14,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:32:14,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:32:14,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:32:14,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:32:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:32:14,723 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-10-26 21:32:14,724 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:32:14,724 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 [2018-10-26 21:32:14,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:32:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:32:14,840 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:32:15,003 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-26 21:32:15,208 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-26 21:32:15,432 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-26 21:32:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 42 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:32:15,645 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 21:32:15,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2018-10-26 21:32:15,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 21:32:15,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 21:32:15,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:32:15,652 INFO L87 Difference]: Start difference. First operand 3514 states and 5233 transitions. Second operand 7 states. [2018-10-26 21:32:17,171 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-26 21:32:44,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:32:44,388 INFO L93 Difference]: Finished difference Result 18122 states and 30330 transitions. [2018-10-26 21:32:44,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 21:32:44,389 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 188 [2018-10-26 21:32:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:32:44,465 INFO L225 Difference]: With dead ends: 18122 [2018-10-26 21:32:44,465 INFO L226 Difference]: Without dead ends: 15398 [2018-10-26 21:32:44,474 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-10-26 21:32:44,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15398 states. [2018-10-26 21:32:44,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15398 to 13800. [2018-10-26 21:32:44,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13800 states. [2018-10-26 21:32:44,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13800 states to 13800 states and 18814 transitions. [2018-10-26 21:32:44,777 INFO L78 Accepts]: Start accepts. Automaton has 13800 states and 18814 transitions. Word has length 188 [2018-10-26 21:32:44,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:32:44,778 INFO L481 AbstractCegarLoop]: Abstraction has 13800 states and 18814 transitions. [2018-10-26 21:32:44,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 21:32:44,779 INFO L276 IsEmpty]: Start isEmpty. Operand 13800 states and 18814 transitions. [2018-10-26 21:32:44,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-10-26 21:32:44,790 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:32:44,790 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:32:44,790 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:32:44,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:32:44,791 INFO L82 PathProgramCache]: Analyzing trace with hash 859592744, now seen corresponding path program 1 times [2018-10-26 21:32:44,791 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:32:44,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:32:44,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:32:44,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:32:44,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:32:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:32:45,489 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 119 proven. 66 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-26 21:32:45,489 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:32:45,490 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) [2018-10-26 21:32:45,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:32:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:32:45,622 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:32:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-26 21:32:45,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:32:45,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-26 21:32:45,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:32:45,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:32:45,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:32:45,863 INFO L87 Difference]: Start difference. First operand 13800 states and 18814 transitions. Second operand 5 states. [2018-10-26 21:33:05,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:33:05,674 INFO L93 Difference]: Finished difference Result 73393 states and 106763 transitions. [2018-10-26 21:33:05,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 21:33:05,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 320 [2018-10-26 21:33:05,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:33:05,832 INFO L225 Difference]: With dead ends: 73393 [2018-10-26 21:33:05,832 INFO L226 Difference]: Without dead ends: 57223 [2018-10-26 21:33:05,865 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:33:05,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57223 states. [2018-10-26 21:33:06,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57223 to 53268. [2018-10-26 21:33:06,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53268 states. [2018-10-26 21:33:06,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53268 states to 53268 states and 66471 transitions. [2018-10-26 21:33:06,691 INFO L78 Accepts]: Start accepts. Automaton has 53268 states and 66471 transitions. Word has length 320 [2018-10-26 21:33:06,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:33:06,692 INFO L481 AbstractCegarLoop]: Abstraction has 53268 states and 66471 transitions. [2018-10-26 21:33:06,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:33:06,693 INFO L276 IsEmpty]: Start isEmpty. Operand 53268 states and 66471 transitions. [2018-10-26 21:33:06,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2018-10-26 21:33:06,717 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:33:06,718 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:33:06,718 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:33:06,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:33:06,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1736701088, now seen corresponding path program 1 times [2018-10-26 21:33:06,719 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:33:06,719 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:33:06,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:06,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:33:06,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:33:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 506 proven. 92 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-10-26 21:33:07,462 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:33:07,462 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:33:07,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:33:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:33:07,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:33:07,799 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2018-10-26 21:33:07,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:33:07,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-26 21:33:07,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 21:33:07,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 21:33:07,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:33:07,823 INFO L87 Difference]: Start difference. First operand 53268 states and 66471 transitions. Second operand 6 states. [2018-10-26 21:33:36,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:33:36,711 INFO L93 Difference]: Finished difference Result 225043 states and 279269 transitions. [2018-10-26 21:33:36,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 21:33:36,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 485 [2018-10-26 21:33:36,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:33:36,982 INFO L225 Difference]: With dead ends: 225043 [2018-10-26 21:33:36,982 INFO L226 Difference]: Without dead ends: 152760 [2018-10-26 21:33:37,052 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 487 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-10-26 21:33:37,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152760 states. [2018-10-26 21:33:38,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152760 to 143142. [2018-10-26 21:33:38,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143142 states. [2018-10-26 21:33:38,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143142 states to 143142 states and 169152 transitions. [2018-10-26 21:33:38,596 INFO L78 Accepts]: Start accepts. Automaton has 143142 states and 169152 transitions. Word has length 485 [2018-10-26 21:33:38,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:33:38,596 INFO L481 AbstractCegarLoop]: Abstraction has 143142 states and 169152 transitions. [2018-10-26 21:33:38,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 21:33:38,596 INFO L276 IsEmpty]: Start isEmpty. Operand 143142 states and 169152 transitions. [2018-10-26 21:33:38,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2018-10-26 21:33:38,645 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:33:38,646 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-26 21:33:38,646 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:33:38,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:33:38,647 INFO L82 PathProgramCache]: Analyzing trace with hash 688285591, now seen corresponding path program 1 times [2018-10-26 21:33:38,647 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:33:38,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:33:38,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:38,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:33:38,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:33:39,106 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 679 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2018-10-26 21:33:39,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:33:39,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:33:39,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:33:39,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:33:39,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:33:39,109 INFO L87 Difference]: Start difference. First operand 143142 states and 169152 transitions. Second operand 4 states. [2018-10-26 21:33:50,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:33:50,183 INFO L93 Difference]: Finished difference Result 359598 states and 426237 transitions. [2018-10-26 21:33:50,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:33:50,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 592 [2018-10-26 21:33:50,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:33:50,582 INFO L225 Difference]: With dead ends: 359598 [2018-10-26 21:33:50,582 INFO L226 Difference]: Without dead ends: 217246 [2018-10-26 21:33:50,728 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:33:50,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217246 states. [2018-10-26 21:33:53,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217246 to 201431. [2018-10-26 21:33:53,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201431 states. [2018-10-26 21:33:53,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201431 states to 201431 states and 231837 transitions. [2018-10-26 21:33:53,957 INFO L78 Accepts]: Start accepts. Automaton has 201431 states and 231837 transitions. Word has length 592 [2018-10-26 21:33:53,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:33:53,957 INFO L481 AbstractCegarLoop]: Abstraction has 201431 states and 231837 transitions. [2018-10-26 21:33:53,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:33:53,958 INFO L276 IsEmpty]: Start isEmpty. Operand 201431 states and 231837 transitions. [2018-10-26 21:33:54,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2018-10-26 21:33:54,017 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:33:54,018 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:33:54,018 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:33:54,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:33:54,019 INFO L82 PathProgramCache]: Analyzing trace with hash -350476805, now seen corresponding path program 1 times [2018-10-26 21:33:54,019 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:33:54,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:33:54,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:54,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:33:54,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:33:54,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 846 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2018-10-26 21:33:54,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:33:54,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:33:54,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:33:54,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:33:54,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:33:54,870 INFO L87 Difference]: Start difference. First operand 201431 states and 231837 transitions. Second operand 4 states. [2018-10-26 21:34:11,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:34:11,870 INFO L93 Difference]: Finished difference Result 478790 states and 551022 transitions. [2018-10-26 21:34:11,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:34:11,870 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 736 [2018-10-26 21:34:11,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:34:12,276 INFO L225 Difference]: With dead ends: 478790 [2018-10-26 21:34:12,276 INFO L226 Difference]: Without dead ends: 278149 [2018-10-26 21:34:12,435 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 [2018-10-26 21:34:12,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278149 states. [2018-10-26 21:34:16,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278149 to 275612. [2018-10-26 21:34:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275612 states. [2018-10-26 21:34:16,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275612 states to 275612 states and 314861 transitions. [2018-10-26 21:34:16,361 INFO L78 Accepts]: Start accepts. Automaton has 275612 states and 314861 transitions. Word has length 736 [2018-10-26 21:34:16,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:34:16,362 INFO L481 AbstractCegarLoop]: Abstraction has 275612 states and 314861 transitions. [2018-10-26 21:34:16,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:34:16,362 INFO L276 IsEmpty]: Start isEmpty. Operand 275612 states and 314861 transitions. [2018-10-26 21:34:16,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 749 [2018-10-26 21:34:16,391 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:34:16,392 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:34:16,393 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:34:16,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:34:16,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1140515811, now seen corresponding path program 1 times [2018-10-26 21:34:16,393 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:34:16,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:34:16,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:34:16,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:34:16,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:34:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:34:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 913 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2018-10-26 21:34:19,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:34:19,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:34:19,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:34:19,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:34:19,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:34:19,028 INFO L87 Difference]: Start difference. First operand 275612 states and 314861 transitions. Second operand 4 states. [2018-10-26 21:34:29,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:34:29,970 INFO L93 Difference]: Finished difference Result 547300 states and 625609 transitions. [2018-10-26 21:34:29,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:34:29,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 748 [2018-10-26 21:34:29,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:34:30,313 INFO L225 Difference]: With dead ends: 547300 [2018-10-26 21:34:30,313 INFO L226 Difference]: Without dead ends: 272478 [2018-10-26 21:34:30,445 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 [2018-10-26 21:34:30,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272478 states. [2018-10-26 21:34:40,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272478 to 262210. [2018-10-26 21:34:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262210 states. [2018-10-26 21:34:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262210 states to 262210 states and 290906 transitions. [2018-10-26 21:34:40,270 INFO L78 Accepts]: Start accepts. Automaton has 262210 states and 290906 transitions. Word has length 748 [2018-10-26 21:34:40,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:34:40,271 INFO L481 AbstractCegarLoop]: Abstraction has 262210 states and 290906 transitions. [2018-10-26 21:34:40,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:34:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand 262210 states and 290906 transitions. [2018-10-26 21:34:40,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2018-10-26 21:34:40,313 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:34:40,314 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:34:40,314 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:34:40,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:34:40,314 INFO L82 PathProgramCache]: Analyzing trace with hash -900508273, now seen corresponding path program 1 times [2018-10-26 21:34:40,314 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:34:40,315 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:34:40,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:34:40,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:34:40,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:34:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:34:42,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 1301 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2018-10-26 21:34:42,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:34:42,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:34:42,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:34:42,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:34:42,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:34:42,315 INFO L87 Difference]: Start difference. First operand 262210 states and 290906 transitions. Second operand 4 states. [2018-10-26 21:34:53,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:34:53,138 INFO L93 Difference]: Finished difference Result 511778 states and 568710 transitions. [2018-10-26 21:34:53,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:34:53,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 853 [2018-10-26 21:34:53,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:34:53,536 INFO L225 Difference]: With dead ends: 511778 [2018-10-26 21:34:53,536 INFO L226 Difference]: Without dead ends: 250358 [2018-10-26 21:34:53,724 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 5 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:34:53,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250358 states. [2018-10-26 21:34:57,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250358 to 210940. [2018-10-26 21:34:57,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210940 states. [2018-10-26 21:34:57,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210940 states to 210940 states and 226953 transitions. [2018-10-26 21:34:57,390 INFO L78 Accepts]: Start accepts. Automaton has 210940 states and 226953 transitions. Word has length 853 [2018-10-26 21:34:57,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:34:57,391 INFO L481 AbstractCegarLoop]: Abstraction has 210940 states and 226953 transitions. [2018-10-26 21:34:57,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:34:57,391 INFO L276 IsEmpty]: Start isEmpty. Operand 210940 states and 226953 transitions. [2018-10-26 21:34:57,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1256 [2018-10-26 21:34:57,491 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:34:57,492 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:34:57,492 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:34:57,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:34:57,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1199810611, now seen corresponding path program 1 times [2018-10-26 21:34:57,493 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:34:57,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:34:57,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:34:57,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:34:57,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:34:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:35:00,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2056 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2018-10-26 21:35:00,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:35:00,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:35:00,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:35:00,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:35:00,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:35:00,077 INFO L87 Difference]: Start difference. First operand 210940 states and 226953 transitions. Second operand 3 states. [2018-10-26 21:35:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:35:08,625 INFO L93 Difference]: Finished difference Result 462925 states and 497842 transitions. [2018-10-26 21:35:08,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:35:08,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1255 [2018-10-26 21:35:08,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:35:08,942 INFO L225 Difference]: With dead ends: 462925 [2018-10-26 21:35:08,943 INFO L226 Difference]: Without dead ends: 252775 [2018-10-26 21:35:09,063 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 [2018-10-26 21:35:09,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252775 states. [2018-10-26 21:35:12,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252775 to 244045. [2018-10-26 21:35:12,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244045 states. [2018-10-26 21:35:12,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244045 states to 244045 states and 261417 transitions. [2018-10-26 21:35:12,780 INFO L78 Accepts]: Start accepts. Automaton has 244045 states and 261417 transitions. Word has length 1255 [2018-10-26 21:35:12,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:35:12,782 INFO L481 AbstractCegarLoop]: Abstraction has 244045 states and 261417 transitions. [2018-10-26 21:35:12,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:35:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand 244045 states and 261417 transitions. [2018-10-26 21:35:12,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1289 [2018-10-26 21:35:12,869 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:35:12,870 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:35:12,870 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:35:12,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:35:12,870 INFO L82 PathProgramCache]: Analyzing trace with hash 616737761, now seen corresponding path program 1 times [2018-10-26 21:35:12,871 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:35:12,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:35:12,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:35:12,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:35:12,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:35:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-10-26 21:35:19,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2168 backedges. 1529 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2018-10-26 21:35:19,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:35:19,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:35:19,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:35:19,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:35:19,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:35:19,277 INFO L87 Difference]: Start difference. First operand 244045 states and 261417 transitions. Second operand 5 states. [2018-10-26 21:35:19,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 21:35:19,278 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 21:35:19,284 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 21:35:19,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:35:19 BoogieIcfgContainer [2018-10-26 21:35:19,285 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:35:19,286 INFO L168 Benchmark]: Toolchain (without parser) took 224467.10 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-26 21:35:19,287 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. [2018-10-26 21:35:19,288 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2548.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-10-26 21:35:19,288 INFO L168 Benchmark]: Boogie Procedure Inliner took 802.98 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 826.8 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2018-10-26 21:35:19,289 INFO L168 Benchmark]: Boogie Preprocessor took 473.24 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: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2018-10-26 21:35:19,290 INFO L168 Benchmark]: RCFGBuilder took 14484.46 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 236.5 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 43.7 MB). Peak memory consumption was 604.7 MB. Max. memory is 7.1 GB. [2018-10-26 21:35:19,291 INFO L168 Benchmark]: TraceAbstraction took 206153.44 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.1 GB in the beginning and 3.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 623.3 MB. Max. memory is 7.1 GB. [2018-10-26 21:35:19,296 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 2548.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 802.98 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 826.8 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 473.24 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: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14484.46 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 236.5 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 43.7 MB). Peak memory consumption was 604.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206153.44 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.1 GB in the beginning and 3.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 623.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 195]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 195). Cancelled while BasicCegarLoop was constructing difference of abstraction (244045states) and FLOYD_HOARE automaton (currently 2 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 206.0s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 157.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5094 SDtfs, 35556 SDslu, 2549 SDs, 0 SdLazy, 56357 SolverSat, 23788 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 123.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1052 GetRequests, 1006 SyntacticMatches, 9 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275612occurred in iteration=6, 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: 27.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 91940 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 7520 NumberOfCodeBlocks, 7520 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 7507 ConstructedInterpolants, 0 QuantifiedInterpolants, 10532564 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1318 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 11274/11455 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown