java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label08_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:07:07,202 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:07:07,205 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:07:07,217 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:07:07,218 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:07:07,219 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:07:07,220 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:07:07,222 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:07:07,224 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:07:07,225 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:07:07,226 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:07:07,226 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:07:07,227 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:07:07,228 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:07:07,229 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:07:07,230 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:07:07,231 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:07:07,233 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:07:07,234 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:07:07,236 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:07:07,237 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:07:07,238 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:07:07,240 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:07:07,241 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:07:07,241 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:07:07,242 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:07:07,243 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:07:07,244 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:07:07,244 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:07:07,246 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:07:07,246 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:07:07,247 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:07:07,247 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:07:07,247 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:07:07,248 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:07:07,249 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:07:07,249 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 22:07:07,267 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:07:07,268 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:07:07,271 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:07:07,271 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:07:07,272 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:07:07,272 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:07:07,272 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 22:07:07,273 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:07:07,273 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:07:07,273 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:07:07,273 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:07:07,274 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:07:07,274 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:07:07,274 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:07:07,274 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:07:07,274 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:07:07,276 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:07:07,276 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:07:07,276 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:07:07,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:07:07,277 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:07:07,277 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:07:07,277 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:07:07,277 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 22:07:07,277 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:07:07,278 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:07:07,278 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:07:07,278 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 22:07:07,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:07:07,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:07:07,372 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:07:07,373 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:07:07,374 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:07:07,375 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label08_true-unreach-call.c [2018-10-26 22:07:07,441 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ca09e2c49/e21d87aaae8b4c66a009a9fa6ebf5dfb/FLAGc29d20ae6 [2018-10-26 22:07:08,383 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:07:08,386 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label08_true-unreach-call.c [2018-10-26 22:07:08,438 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ca09e2c49/e21d87aaae8b4c66a009a9fa6ebf5dfb/FLAGc29d20ae6 [2018-10-26 22:07:08,460 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ca09e2c49/e21d87aaae8b4c66a009a9fa6ebf5dfb [2018-10-26 22:07:08,470 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:07:08,472 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:07:08,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:07:08,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:07:08,477 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:07:08,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:07:08" (1/1) ... [2018-10-26 22:07:08,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b326c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:08, skipping insertion in model container [2018-10-26 22:07:08,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:07:08" (1/1) ... [2018-10-26 22:07:08,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:07:08,750 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:07:10,939 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:07:10,944 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:07:12,162 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:07:12,228 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:07:12,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12 WrapperNode [2018-10-26 22:07:12,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:07:12,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:07:12,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:07:12,230 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:07:12,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12" (1/1) ... [2018-10-26 22:07:12,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12" (1/1) ... [2018-10-26 22:07:13,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:07:13,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:07:13,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:07:13,511 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:07:13,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12" (1/1) ... [2018-10-26 22:07:13,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12" (1/1) ... [2018-10-26 22:07:13,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12" (1/1) ... [2018-10-26 22:07:13,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12" (1/1) ... [2018-10-26 22:07:13,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12" (1/1) ... [2018-10-26 22:07:14,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12" (1/1) ... [2018-10-26 22:07:14,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12" (1/1) ... [2018-10-26 22:07:14,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:07:14,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:07:14,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:07:14,295 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:07:14,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12" (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 22:07:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 22:07:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:07:14,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:07:31,446 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:07:31,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:07:31 BoogieIcfgContainer [2018-10-26 22:07:31,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:07:31,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:07:31,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:07:31,452 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:07:31,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:07:08" (1/3) ... [2018-10-26 22:07:31,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4727c817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:07:31, skipping insertion in model container [2018-10-26 22:07:31,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:12" (2/3) ... [2018-10-26 22:07:31,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4727c817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:07:31, skipping insertion in model container [2018-10-26 22:07:31,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:07:31" (3/3) ... [2018-10-26 22:07:31,456 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label08_true-unreach-call.c [2018-10-26 22:07:31,466 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:07:31,477 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:07:31,494 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:07:31,540 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:07:31,541 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:07:31,541 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:07:31,541 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:07:31,541 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:07:31,541 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:07:31,542 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:07:31,542 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:07:31,542 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:07:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-26 22:07:31,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-26 22:07:31,597 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:31,598 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] [2018-10-26 22:07:31,601 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:31,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:31,607 INFO L82 PathProgramCache]: Analyzing trace with hash -387853398, now seen corresponding path program 1 times [2018-10-26 22:07:31,609 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:07:31,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:07:31,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:31,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:31,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:32,127 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 22:07:32,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:32,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:07:32,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:07:32,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:07:32,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:07:32,151 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-26 22:07:54,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:54,225 INFO L93 Difference]: Finished difference Result 6324 states and 12081 transitions. [2018-10-26 22:07:54,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:07:54,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2018-10-26 22:07:54,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:54,288 INFO L225 Difference]: With dead ends: 6324 [2018-10-26 22:07:54,289 INFO L226 Difference]: Without dead ends: 4568 [2018-10-26 22:07:54,301 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:07:54,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4568 states. [2018-10-26 22:07:54,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4568 to 4563. [2018-10-26 22:07:54,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4563 states. [2018-10-26 22:07:54,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4563 states to 4563 states and 7487 transitions. [2018-10-26 22:07:54,529 INFO L78 Accepts]: Start accepts. Automaton has 4563 states and 7487 transitions. Word has length 38 [2018-10-26 22:07:54,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:54,530 INFO L481 AbstractCegarLoop]: Abstraction has 4563 states and 7487 transitions. [2018-10-26 22:07:54,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:07:54,530 INFO L276 IsEmpty]: Start isEmpty. Operand 4563 states and 7487 transitions. [2018-10-26 22:07:54,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-26 22:07:54,535 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:54,535 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:54,536 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:54,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:54,536 INFO L82 PathProgramCache]: Analyzing trace with hash -2122648538, now seen corresponding path program 1 times [2018-10-26 22:07:54,536 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:07:54,537 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:07:54,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:54,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:54,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:54,917 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:54,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:54,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:07:54,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:07:54,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:07:54,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:07:54,921 INFO L87 Difference]: Start difference. First operand 4563 states and 7487 transitions. Second operand 4 states. [2018-10-26 22:08:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:08:26,254 INFO L93 Difference]: Finished difference Result 17544 states and 29003 transitions. [2018-10-26 22:08:26,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:08:26,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2018-10-26 22:08:26,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:08:26,318 INFO L225 Difference]: With dead ends: 17544 [2018-10-26 22:08:26,318 INFO L226 Difference]: Without dead ends: 12983 [2018-10-26 22:08:26,326 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 [2018-10-26 22:08:26,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12983 states. [2018-10-26 22:08:26,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12983 to 8662. [2018-10-26 22:08:26,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8662 states. [2018-10-26 22:08:26,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8662 states to 8662 states and 13841 transitions. [2018-10-26 22:08:26,511 INFO L78 Accepts]: Start accepts. Automaton has 8662 states and 13841 transitions. Word has length 116 [2018-10-26 22:08:26,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:08:26,512 INFO L481 AbstractCegarLoop]: Abstraction has 8662 states and 13841 transitions. [2018-10-26 22:08:26,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:08:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand 8662 states and 13841 transitions. [2018-10-26 22:08:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-26 22:08:26,520 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:08:26,520 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:08:26,521 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:08:26,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:08:26,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1684149562, now seen corresponding path program 1 times [2018-10-26 22:08:26,522 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:08:26,522 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:08:26,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:08:26,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:08:26,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:08:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:08:26,812 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:08:26,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:08:26,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:08:26,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:08:26,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:08:26,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:08:26,814 INFO L87 Difference]: Start difference. First operand 8662 states and 13841 transitions. Second operand 4 states. [2018-10-26 22:08:50,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:08:50,384 INFO L93 Difference]: Finished difference Result 33991 states and 54526 transitions. [2018-10-26 22:08:50,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:08:50,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2018-10-26 22:08:50,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:08:50,457 INFO L225 Difference]: With dead ends: 33991 [2018-10-26 22:08:50,457 INFO L226 Difference]: Without dead ends: 25331 [2018-10-26 22:08:50,476 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:08:50,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25331 states. [2018-10-26 22:08:51,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25331 to 25321. [2018-10-26 22:08:51,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25321 states. [2018-10-26 22:08:51,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25321 states to 25321 states and 34467 transitions. [2018-10-26 22:08:51,064 INFO L78 Accepts]: Start accepts. Automaton has 25321 states and 34467 transitions. Word has length 136 [2018-10-26 22:08:51,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:08:51,065 INFO L481 AbstractCegarLoop]: Abstraction has 25321 states and 34467 transitions. [2018-10-26 22:08:51,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:08:51,065 INFO L276 IsEmpty]: Start isEmpty. Operand 25321 states and 34467 transitions. [2018-10-26 22:08:51,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-26 22:08:51,075 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:08:51,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:08:51,076 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:08:51,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:08:51,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1383612961, now seen corresponding path program 1 times [2018-10-26 22:08:51,077 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:08:51,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:08:51,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:08:51,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:08:51,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:08:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:08:51,643 WARN L179 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-26 22:08:51,773 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-26 22:08:51,833 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:08:51,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:08:51,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 22:08:51,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:08:51,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:08:51,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:08:51,835 INFO L87 Difference]: Start difference. First operand 25321 states and 34467 transitions. Second operand 6 states. [2018-10-26 22:09:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:09:19,066 INFO L93 Difference]: Finished difference Result 82151 states and 109854 transitions. [2018-10-26 22:09:19,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 22:09:19,074 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-10-26 22:09:19,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:09:19,178 INFO L225 Difference]: With dead ends: 82151 [2018-10-26 22:09:19,178 INFO L226 Difference]: Without dead ends: 56832 [2018-10-26 22:09:19,205 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:09:19,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56832 states. [2018-10-26 22:09:19,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56832 to 55390. [2018-10-26 22:09:19,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55390 states. [2018-10-26 22:09:19,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55390 states to 55390 states and 72762 transitions. [2018-10-26 22:09:19,924 INFO L78 Accepts]: Start accepts. Automaton has 55390 states and 72762 transitions. Word has length 143 [2018-10-26 22:09:19,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:09:19,925 INFO L481 AbstractCegarLoop]: Abstraction has 55390 states and 72762 transitions. [2018-10-26 22:09:19,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:09:19,925 INFO L276 IsEmpty]: Start isEmpty. Operand 55390 states and 72762 transitions. [2018-10-26 22:09:19,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-10-26 22:09:19,928 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:09:19,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:09:19,929 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:09:19,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:09:19,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1521874531, now seen corresponding path program 1 times [2018-10-26 22:09:19,929 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:09:19,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:09:19,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:09:19,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:09:19,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:09:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:09:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:09:20,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:09:20,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:09:20,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:09:20,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:09:20,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:09:20,384 INFO L87 Difference]: Start difference. First operand 55390 states and 72762 transitions. Second operand 4 states. [2018-10-26 22:09:41,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:09:41,401 INFO L93 Difference]: Finished difference Result 140975 states and 184048 transitions. [2018-10-26 22:09:41,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:09:41,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 274 [2018-10-26 22:09:41,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:09:41,562 INFO L225 Difference]: With dead ends: 140975 [2018-10-26 22:09:41,563 INFO L226 Difference]: Without dead ends: 80121 [2018-10-26 22:09:41,633 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 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 22:09:41,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80121 states. [2018-10-26 22:09:42,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80121 to 75896. [2018-10-26 22:09:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75896 states. [2018-10-26 22:09:42,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75896 states to 75896 states and 95166 transitions. [2018-10-26 22:09:42,661 INFO L78 Accepts]: Start accepts. Automaton has 75896 states and 95166 transitions. Word has length 274 [2018-10-26 22:09:42,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:09:42,661 INFO L481 AbstractCegarLoop]: Abstraction has 75896 states and 95166 transitions. [2018-10-26 22:09:42,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:09:42,662 INFO L276 IsEmpty]: Start isEmpty. Operand 75896 states and 95166 transitions. [2018-10-26 22:09:42,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 749 [2018-10-26 22:09:42,695 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:09:42,696 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 22:09:42,697 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:09:42,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:09:42,697 INFO L82 PathProgramCache]: Analyzing trace with hash 894602340, now seen corresponding path program 1 times [2018-10-26 22:09:42,697 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:09:42,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:09:42,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:09:42,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:09:42,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:09:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:09:44,223 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 782 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2018-10-26 22:09:44,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:09:44,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:09:44,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:09:44,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:09:44,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:09:44,225 INFO L87 Difference]: Start difference. First operand 75896 states and 95166 transitions. Second operand 4 states. [2018-10-26 22:10:03,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:10:03,984 INFO L93 Difference]: Finished difference Result 170911 states and 214797 transitions. [2018-10-26 22:10:03,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:10:03,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 748 [2018-10-26 22:10:03,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:10:04,114 INFO L225 Difference]: With dead ends: 170911 [2018-10-26 22:10:04,115 INFO L226 Difference]: Without dead ends: 95017 [2018-10-26 22:10:04,159 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:10:04,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95017 states. [2018-10-26 22:10:05,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95017 to 95007. [2018-10-26 22:10:05,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95007 states. [2018-10-26 22:10:05,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95007 states to 95007 states and 110244 transitions. [2018-10-26 22:10:05,150 INFO L78 Accepts]: Start accepts. Automaton has 95007 states and 110244 transitions. Word has length 748 [2018-10-26 22:10:05,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:10:05,151 INFO L481 AbstractCegarLoop]: Abstraction has 95007 states and 110244 transitions. [2018-10-26 22:10:05,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:10:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand 95007 states and 110244 transitions. [2018-10-26 22:10:05,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2018-10-26 22:10:05,200 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:10:05,201 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:05,202 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:10:05,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:10:05,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1589112164, now seen corresponding path program 1 times [2018-10-26 22:10:05,203 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:10:05,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:10:05,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:05,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:10:05,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:10:06,382 WARN L179 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-26 22:10:07,896 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 293 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-26 22:10:07,896 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:10:07,897 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 22:10:07,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:10:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:10:08,196 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:10:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-26 22:10:08,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 22:10:08,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-26 22:10:08,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 22:10:08,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 22:10:08,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 22:10:08,827 INFO L87 Difference]: Start difference. First operand 95007 states and 110244 transitions. Second operand 5 states. [2018-10-26 22:10:31,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:10:31,288 INFO L93 Difference]: Finished difference Result 214603 states and 247131 transitions. [2018-10-26 22:10:31,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 22:10:31,289 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 889 [2018-10-26 22:10:31,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:10:31,470 INFO L225 Difference]: With dead ends: 214603 [2018-10-26 22:10:31,470 INFO L226 Difference]: Without dead ends: 110025 [2018-10-26 22:10:31,537 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 898 GetRequests, 889 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:10:31,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110025 states. [2018-10-26 22:10:33,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110025 to 108657. [2018-10-26 22:10:33,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108657 states. [2018-10-26 22:10:33,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108657 states to 108657 states and 118444 transitions. [2018-10-26 22:10:33,330 INFO L78 Accepts]: Start accepts. Automaton has 108657 states and 118444 transitions. Word has length 889 [2018-10-26 22:10:33,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:10:33,330 INFO L481 AbstractCegarLoop]: Abstraction has 108657 states and 118444 transitions. [2018-10-26 22:10:33,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 22:10:33,331 INFO L276 IsEmpty]: Start isEmpty. Operand 108657 states and 118444 transitions. [2018-10-26 22:10:33,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2018-10-26 22:10:33,348 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:10:33,349 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:33,350 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:10:33,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:10:33,350 INFO L82 PathProgramCache]: Analyzing trace with hash -496820180, now seen corresponding path program 1 times [2018-10-26 22:10:33,350 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:10:33,351 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:10:33,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:33,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:10:33,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:10:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2018-10-26 22:10:34,534 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:10:34,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:10:34,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 22:10:34,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 22:10:34,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:10:34,536 INFO L87 Difference]: Start difference. First operand 108657 states and 118444 transitions. Second operand 3 states. [2018-10-26 22:10:44,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:10:44,866 INFO L93 Difference]: Finished difference Result 267856 states and 293250 transitions. [2018-10-26 22:10:44,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 22:10:44,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 957 [2018-10-26 22:10:44,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:10:45,071 INFO L225 Difference]: With dead ends: 267856 [2018-10-26 22:10:45,071 INFO L226 Difference]: Without dead ends: 159201 [2018-10-26 22:10:45,142 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:10:45,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159201 states. [2018-10-26 22:10:46,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159201 to 129147. [2018-10-26 22:10:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129147 states. [2018-10-26 22:10:46,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129147 states to 129147 states and 139664 transitions. [2018-10-26 22:10:46,537 INFO L78 Accepts]: Start accepts. Automaton has 129147 states and 139664 transitions. Word has length 957 [2018-10-26 22:10:46,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:10:46,539 INFO L481 AbstractCegarLoop]: Abstraction has 129147 states and 139664 transitions. [2018-10-26 22:10:46,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 22:10:46,539 INFO L276 IsEmpty]: Start isEmpty. Operand 129147 states and 139664 transitions. [2018-10-26 22:10:46,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1087 [2018-10-26 22:10:46,569 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:10:46,570 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 22:10:46,570 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:10:46,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:10:46,571 INFO L82 PathProgramCache]: Analyzing trace with hash 941624548, now seen corresponding path program 1 times [2018-10-26 22:10:46,571 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:10:46,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:10:46,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:46,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:10:46,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:10:48,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 702 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2018-10-26 22:10:48,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:10:48,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:10:48,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 22:10:48,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 22:10:48,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:10:48,437 INFO L87 Difference]: Start difference. First operand 129147 states and 139664 transitions. Second operand 3 states. [2018-10-26 22:10:58,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:10:58,304 INFO L93 Difference]: Finished difference Result 256927 states and 277881 transitions. [2018-10-26 22:10:58,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 22:10:58,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1086 [2018-10-26 22:10:58,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:10:58,448 INFO L225 Difference]: With dead ends: 256927 [2018-10-26 22:10:58,449 INFO L226 Difference]: Without dead ends: 127782 [2018-10-26 22:10:58,495 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 22:10:58,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127782 states. [2018-10-26 22:10:59,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127782 to 119580. [2018-10-26 22:10:59,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119580 states. [2018-10-26 22:10:59,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119580 states to 119580 states and 127084 transitions. [2018-10-26 22:10:59,564 INFO L78 Accepts]: Start accepts. Automaton has 119580 states and 127084 transitions. Word has length 1086 [2018-10-26 22:10:59,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:10:59,564 INFO L481 AbstractCegarLoop]: Abstraction has 119580 states and 127084 transitions. [2018-10-26 22:10:59,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 22:10:59,565 INFO L276 IsEmpty]: Start isEmpty. Operand 119580 states and 127084 transitions. [2018-10-26 22:10:59,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1250 [2018-10-26 22:10:59,595 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:10:59,596 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:59,597 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:10:59,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:10:59,597 INFO L82 PathProgramCache]: Analyzing trace with hash 601817801, now seen corresponding path program 1 times [2018-10-26 22:10:59,598 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:10:59,598 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:10:59,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:59,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:10:59,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-10-26 22:11:03,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 839 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-26 22:11:03,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:11:03,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:11:03,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:11:03,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:11:03,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:11:03,416 INFO L87 Difference]: Start difference. First operand 119580 states and 127084 transitions. Second operand 4 states. [2018-10-26 22:11:03,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:11:03,417 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 22:11:03,423 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 22:11:03,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:11:03 BoogieIcfgContainer [2018-10-26 22:11:03,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:11:03,425 INFO L168 Benchmark]: Toolchain (without parser) took 234953.93 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -646.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-26 22:11:03,426 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 22:11:03,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3756.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 990.4 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-26 22:11:03,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 1280.84 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 845.2 MB). Free memory was 990.4 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-26 22:11:03,428 INFO L168 Benchmark]: Boogie Preprocessor took 783.51 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 92.3 MB). Peak memory consumption was 92.3 MB. Max. memory is 7.1 GB. [2018-10-26 22:11:03,429 INFO L168 Benchmark]: RCFGBuilder took 17152.55 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 279.4 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -382.5 MB). Peak memory consumption was 882.9 MB. Max. memory is 7.1 GB. [2018-10-26 22:11:03,430 INFO L168 Benchmark]: TraceAbstraction took 211975.92 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 779.1 MB). Free memory was 2.4 GB in the beginning and 2.0 GB in the end (delta: 369.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-26 22:11:03,435 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3756.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 990.4 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1280.84 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 845.2 MB). Free memory was 990.4 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 783.51 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 92.3 MB). Peak memory consumption was 92.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17152.55 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 279.4 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -382.5 MB). Peak memory consumption was 882.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211975.92 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 779.1 MB). Free memory was 2.4 GB in the beginning and 2.0 GB in the end (delta: 369.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 127). Cancelled while BasicCegarLoop was constructing difference of abstraction (119580states) and FLOYD_HOARE automaton (currently 2 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 211.8s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 189.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13362 SDtfs, 34195 SDslu, 3268 SDs, 0 SdLazy, 74873 SolverSat, 17610 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 159.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 943 GetRequests, 905 SyntacticMatches, 14 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129147occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 49637 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 6525 NumberOfCodeBlocks, 6525 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 6514 ConstructedInterpolants, 0 QuantifiedInterpolants, 12392911 SizeOfPredicates, 5 NumberOfNonLiveVariables, 989 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 4576/4580 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown