java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label00_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 01:22:58,274 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 01:22:58,278 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 01:22:58,289 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 01:22:58,290 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 01:22:58,291 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 01:22:58,292 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 01:22:58,294 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 01:22:58,295 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 01:22:58,296 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 01:22:58,297 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 01:22:58,297 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 01:22:58,298 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 01:22:58,299 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 01:22:58,301 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 01:22:58,301 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 01:22:58,302 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 01:22:58,304 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 01:22:58,306 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 01:22:58,307 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 01:22:58,308 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 01:22:58,310 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 01:22:58,312 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 01:22:58,312 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 01:22:58,313 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 01:22:58,313 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 01:22:58,314 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 01:22:58,315 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 01:22:58,316 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 01:22:58,317 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 01:22:58,317 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 01:22:58,318 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 01:22:58,321 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 01:22:58,339 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 01:22:58,340 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 01:22:58,341 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 01:22:58,341 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 01:22:58,341 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 01:22:58,342 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 01:22:58,343 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 01:22:58,343 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 01:22:58,343 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 01:22:58,343 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 01:22:58,343 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 01:22:58,344 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 01:22:58,344 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 01:22:58,344 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 01:22:58,344 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 01:22:58,345 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 01:22:58,345 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 01:22:58,345 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 01:22:58,345 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 01:22:58,346 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 01:22:58,346 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 01:22:58,346 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 01:22:58,346 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 01:22:58,346 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 01:22:58,347 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 01:22:58,347 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 01:22:58,347 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 01:22:58,347 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 01:22:58,413 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 01:22:58,430 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 01:22:58,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 01:22:58,441 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 01:22:58,441 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 01:22:58,442 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label00_true-unreach-call.c [2018-07-24 01:22:58,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31875ce2/470a6f72869e4e8086838f92f97108b1/FLAGb1a668feb [2018-07-24 01:22:59,208 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 01:22:59,209 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label00_true-unreach-call.c [2018-07-24 01:22:59,232 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31875ce2/470a6f72869e4e8086838f92f97108b1/FLAGb1a668feb [2018-07-24 01:22:59,252 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31875ce2/470a6f72869e4e8086838f92f97108b1 [2018-07-24 01:22:59,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 01:22:59,266 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 01:22:59,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 01:22:59,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 01:22:59,279 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 01:22:59,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:22:59" (1/1) ... [2018-07-24 01:22:59,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a9c81f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:22:59, skipping insertion in model container [2018-07-24 01:22:59,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:22:59" (1/1) ... [2018-07-24 01:22:59,534 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 01:23:00,081 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:23:00,101 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 01:23:00,554 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:23:00,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00 WrapperNode [2018-07-24 01:23:00,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 01:23:00,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 01:23:00,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 01:23:00,620 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 01:23:00,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00" (1/1) ... [2018-07-24 01:23:00,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00" (1/1) ... [2018-07-24 01:23:00,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 01:23:00,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 01:23:00,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 01:23:00,772 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 01:23:01,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00" (1/1) ... [2018-07-24 01:23:01,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00" (1/1) ... [2018-07-24 01:23:01,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00" (1/1) ... [2018-07-24 01:23:01,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00" (1/1) ... [2018-07-24 01:23:01,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00" (1/1) ... [2018-07-24 01:23:01,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00" (1/1) ... [2018-07-24 01:23:01,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00" (1/1) ... [2018-07-24 01:23:01,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 01:23:01,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 01:23:01,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 01:23:01,174 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 01:23:01,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-24 01:23:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 01:23:01,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 01:23:01,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 01:23:06,622 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 01:23:06,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:23:06 BoogieIcfgContainer [2018-07-24 01:23:06,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 01:23:06,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 01:23:06,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 01:23:06,628 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 01:23:06,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 01:22:59" (1/3) ... [2018-07-24 01:23:06,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6378e2d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:23:06, skipping insertion in model container [2018-07-24 01:23:06,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:23:00" (2/3) ... [2018-07-24 01:23:06,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6378e2d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:23:06, skipping insertion in model container [2018-07-24 01:23:06,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:23:06" (3/3) ... [2018-07-24 01:23:06,632 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label00_true-unreach-call.c [2018-07-24 01:23:06,640 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 01:23:06,649 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 01:23:06,703 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 01:23:06,703 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 01:23:06,704 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 01:23:06,704 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 01:23:06,704 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 01:23:06,704 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 01:23:06,705 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 01:23:06,705 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 01:23:06,705 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 01:23:06,730 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2018-07-24 01:23:06,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-07-24 01:23:06,750 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:06,752 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:23:06,752 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:06,758 INFO L82 PathProgramCache]: Analyzing trace with hash -140925822, now seen corresponding path program 1 times [2018-07-24 01:23:06,760 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:06,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:06,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:06,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:06,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:07,713 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-07-24 01:23:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:23:07,843 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:07,843 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:23:07,849 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:23:07,866 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:23:07,867 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:23:07,870 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2018-07-24 01:23:11,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:11,740 INFO L93 Difference]: Finished difference Result 1072 states and 1917 transitions. [2018-07-24 01:23:11,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:23:11,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2018-07-24 01:23:11,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:11,769 INFO L225 Difference]: With dead ends: 1072 [2018-07-24 01:23:11,769 INFO L226 Difference]: Without dead ends: 762 [2018-07-24 01:23:11,774 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:23:11,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2018-07-24 01:23:11,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 518. [2018-07-24 01:23:11,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2018-07-24 01:23:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 855 transitions. [2018-07-24 01:23:11,860 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 855 transitions. Word has length 193 [2018-07-24 01:23:11,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:11,861 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 855 transitions. [2018-07-24 01:23:11,861 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:23:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 855 transitions. [2018-07-24 01:23:11,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-07-24 01:23:11,867 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:11,868 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:23:11,868 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:11,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1156596401, now seen corresponding path program 1 times [2018-07-24 01:23:11,869 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:11,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:11,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:11,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:11,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:23:12,039 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:12,039 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 01:23:12,044 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:23:12,044 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:23:12,045 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:23:12,045 INFO L87 Difference]: Start difference. First operand 518 states and 855 transitions. Second operand 3 states. [2018-07-24 01:23:12,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:12,932 INFO L93 Difference]: Finished difference Result 1548 states and 2559 transitions. [2018-07-24 01:23:12,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:23:12,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2018-07-24 01:23:12,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:12,941 INFO L225 Difference]: With dead ends: 1548 [2018-07-24 01:23:12,941 INFO L226 Difference]: Without dead ends: 1032 [2018-07-24 01:23:12,950 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:23:12,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2018-07-24 01:23:13,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1030. [2018-07-24 01:23:13,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1030 states. [2018-07-24 01:23:13,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1699 transitions. [2018-07-24 01:23:13,007 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1699 transitions. Word has length 199 [2018-07-24 01:23:13,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:13,007 INFO L471 AbstractCegarLoop]: Abstraction has 1030 states and 1699 transitions. [2018-07-24 01:23:13,008 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:23:13,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1699 transitions. [2018-07-24 01:23:13,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-07-24 01:23:13,021 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:13,021 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:23:13,021 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:13,022 INFO L82 PathProgramCache]: Analyzing trace with hash -85332637, now seen corresponding path program 1 times [2018-07-24 01:23:13,022 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:13,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:13,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:13,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:13,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:13,156 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:23:13,156 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:13,156 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 01:23:13,157 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:23:13,157 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:23:13,157 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:23:13,158 INFO L87 Difference]: Start difference. First operand 1030 states and 1699 transitions. Second operand 3 states. [2018-07-24 01:23:16,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:16,495 INFO L93 Difference]: Finished difference Result 2918 states and 4922 transitions. [2018-07-24 01:23:16,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:23:16,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2018-07-24 01:23:16,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:16,507 INFO L225 Difference]: With dead ends: 2918 [2018-07-24 01:23:16,507 INFO L226 Difference]: Without dead ends: 1890 [2018-07-24 01:23:16,510 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:23:16,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2018-07-24 01:23:16,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1858. [2018-07-24 01:23:16,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1858 states. [2018-07-24 01:23:16,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 3013 transitions. [2018-07-24 01:23:16,556 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 3013 transitions. Word has length 202 [2018-07-24 01:23:16,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:16,557 INFO L471 AbstractCegarLoop]: Abstraction has 1858 states and 3013 transitions. [2018-07-24 01:23:16,557 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:23:16,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 3013 transitions. [2018-07-24 01:23:16,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-07-24 01:23:16,563 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:16,563 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:23:16,563 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:16,564 INFO L82 PathProgramCache]: Analyzing trace with hash 185711218, now seen corresponding path program 1 times [2018-07-24 01:23:16,564 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:16,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:16,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:16,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:16,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:16,848 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:23:16,848 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:16,848 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:23:16,849 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:23:16,849 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:23:16,850 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:23:16,851 INFO L87 Difference]: Start difference. First operand 1858 states and 3013 transitions. Second operand 4 states. [2018-07-24 01:23:20,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:20,729 INFO L93 Difference]: Finished difference Result 7104 states and 11698 transitions. [2018-07-24 01:23:20,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:23:20,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 208 [2018-07-24 01:23:20,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:20,758 INFO L225 Difference]: With dead ends: 7104 [2018-07-24 01:23:20,758 INFO L226 Difference]: Without dead ends: 5248 [2018-07-24 01:23:20,763 INFO L573 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 [2018-07-24 01:23:20,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2018-07-24 01:23:20,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 3496. [2018-07-24 01:23:20,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3496 states. [2018-07-24 01:23:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3496 states to 3496 states and 5381 transitions. [2018-07-24 01:23:20,877 INFO L78 Accepts]: Start accepts. Automaton has 3496 states and 5381 transitions. Word has length 208 [2018-07-24 01:23:20,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:20,878 INFO L471 AbstractCegarLoop]: Abstraction has 3496 states and 5381 transitions. [2018-07-24 01:23:20,878 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:23:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3496 states and 5381 transitions. [2018-07-24 01:23:20,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-07-24 01:23:20,888 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:20,888 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-07-24 01:23:20,889 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:20,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1441718287, now seen corresponding path program 1 times [2018-07-24 01:23:20,889 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:20,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:20,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:20,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:20,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:21,262 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-24 01:23:21,263 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:21,263 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:23:21,264 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:23:21,264 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:23:21,264 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:23:21,264 INFO L87 Difference]: Start difference. First operand 3496 states and 5381 transitions. Second operand 3 states. [2018-07-24 01:23:23,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:23,137 INFO L93 Difference]: Finished difference Result 10288 states and 15940 transitions. [2018-07-24 01:23:23,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:23:23,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2018-07-24 01:23:23,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:23,167 INFO L225 Difference]: With dead ends: 10288 [2018-07-24 01:23:23,168 INFO L226 Difference]: Without dead ends: 6794 [2018-07-24 01:23:23,174 INFO L573 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 [2018-07-24 01:23:23,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6794 states. [2018-07-24 01:23:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6794 to 6760. [2018-07-24 01:23:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6760 states. [2018-07-24 01:23:23,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6760 states to 6760 states and 10079 transitions. [2018-07-24 01:23:23,310 INFO L78 Accepts]: Start accepts. Automaton has 6760 states and 10079 transitions. Word has length 210 [2018-07-24 01:23:23,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:23,311 INFO L471 AbstractCegarLoop]: Abstraction has 6760 states and 10079 transitions. [2018-07-24 01:23:23,311 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:23:23,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6760 states and 10079 transitions. [2018-07-24 01:23:23,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-07-24 01:23:23,328 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:23,328 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 01:23:23,329 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:23,329 INFO L82 PathProgramCache]: Analyzing trace with hash -146688595, now seen corresponding path program 1 times [2018-07-24 01:23:23,329 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:23,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:23,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:23,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:23,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:23,626 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-07-24 01:23:23,626 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:23,627 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:23:23,627 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:23:23,627 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:23:23,627 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:23:23,628 INFO L87 Difference]: Start difference. First operand 6760 states and 10079 transitions. Second operand 4 states. [2018-07-24 01:23:26,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:26,838 INFO L93 Difference]: Finished difference Result 26580 states and 39790 transitions. [2018-07-24 01:23:26,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:23:26,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 223 [2018-07-24 01:23:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:26,896 INFO L225 Difference]: With dead ends: 26580 [2018-07-24 01:23:26,896 INFO L226 Difference]: Without dead ends: 19822 [2018-07-24 01:23:26,909 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:23:26,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19822 states. [2018-07-24 01:23:27,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19822 to 19816. [2018-07-24 01:23:27,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19816 states. [2018-07-24 01:23:27,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19816 states to 19816 states and 25843 transitions. [2018-07-24 01:23:27,286 INFO L78 Accepts]: Start accepts. Automaton has 19816 states and 25843 transitions. Word has length 223 [2018-07-24 01:23:27,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:27,287 INFO L471 AbstractCegarLoop]: Abstraction has 19816 states and 25843 transitions. [2018-07-24 01:23:27,287 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:23:27,287 INFO L276 IsEmpty]: Start isEmpty. Operand 19816 states and 25843 transitions. [2018-07-24 01:23:27,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-07-24 01:23:27,323 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:27,324 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:23:27,324 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:27,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1369914862, now seen corresponding path program 1 times [2018-07-24 01:23:27,324 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:27,325 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:27,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:27,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:27,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:27,487 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-07-24 01:23:27,487 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:27,487 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 01:23:27,488 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:23:27,488 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:23:27,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:23:27,489 INFO L87 Difference]: Start difference. First operand 19816 states and 25843 transitions. Second operand 3 states. [2018-07-24 01:23:29,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:29,182 INFO L93 Difference]: Finished difference Result 38552 states and 49837 transitions. [2018-07-24 01:23:29,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:23:29,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2018-07-24 01:23:29,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:29,224 INFO L225 Difference]: With dead ends: 38552 [2018-07-24 01:23:29,225 INFO L226 Difference]: Without dead ends: 18738 [2018-07-24 01:23:29,245 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:23:29,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18738 states. [2018-07-24 01:23:29,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18738 to 18738. [2018-07-24 01:23:29,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18738 states. [2018-07-24 01:23:29,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18738 states to 18738 states and 23484 transitions. [2018-07-24 01:23:29,515 INFO L78 Accepts]: Start accepts. Automaton has 18738 states and 23484 transitions. Word has length 224 [2018-07-24 01:23:29,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:29,516 INFO L471 AbstractCegarLoop]: Abstraction has 18738 states and 23484 transitions. [2018-07-24 01:23:29,516 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:23:29,516 INFO L276 IsEmpty]: Start isEmpty. Operand 18738 states and 23484 transitions. [2018-07-24 01:23:29,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-07-24 01:23:29,551 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:29,552 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:23:29,552 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:29,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1089200083, now seen corresponding path program 1 times [2018-07-24 01:23:29,552 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:29,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:29,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:29,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:29,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:23:29,945 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:29,946 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:23:29,946 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:23:29,946 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:23:29,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:23:29,947 INFO L87 Difference]: Start difference. First operand 18738 states and 23484 transitions. Second operand 4 states. [2018-07-24 01:23:32,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:32,217 INFO L93 Difference]: Finished difference Result 37068 states and 46434 transitions. [2018-07-24 01:23:32,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:23:32,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 290 [2018-07-24 01:23:32,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:32,248 INFO L225 Difference]: With dead ends: 37068 [2018-07-24 01:23:32,249 INFO L226 Difference]: Without dead ends: 18332 [2018-07-24 01:23:32,266 INFO L573 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 [2018-07-24 01:23:32,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18332 states. [2018-07-24 01:23:32,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18332 to 18326. [2018-07-24 01:23:32,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18326 states. [2018-07-24 01:23:32,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18326 states to 18326 states and 22257 transitions. [2018-07-24 01:23:32,503 INFO L78 Accepts]: Start accepts. Automaton has 18326 states and 22257 transitions. Word has length 290 [2018-07-24 01:23:32,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:32,504 INFO L471 AbstractCegarLoop]: Abstraction has 18326 states and 22257 transitions. [2018-07-24 01:23:32,504 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:23:32,505 INFO L276 IsEmpty]: Start isEmpty. Operand 18326 states and 22257 transitions. [2018-07-24 01:23:32,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-07-24 01:23:32,540 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:32,541 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:23:32,541 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:32,541 INFO L82 PathProgramCache]: Analyzing trace with hash 75966581, now seen corresponding path program 1 times [2018-07-24 01:23:32,541 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:32,541 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:32,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:32,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:32,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:32,993 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:23:32,993 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:32,993 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 01:23:32,994 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:23:32,994 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:23:32,994 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:23:32,994 INFO L87 Difference]: Start difference. First operand 18326 states and 22257 transitions. Second operand 3 states. [2018-07-24 01:23:34,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:34,757 INFO L93 Difference]: Finished difference Result 44489 states and 53820 transitions. [2018-07-24 01:23:34,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:23:34,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 309 [2018-07-24 01:23:34,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:34,790 INFO L225 Difference]: With dead ends: 44489 [2018-07-24 01:23:34,791 INFO L226 Difference]: Without dead ends: 26165 [2018-07-24 01:23:34,809 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:23:34,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26165 states. [2018-07-24 01:23:35,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26165 to 26163. [2018-07-24 01:23:35,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26163 states. [2018-07-24 01:23:35,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26163 states to 26163 states and 31501 transitions. [2018-07-24 01:23:35,146 INFO L78 Accepts]: Start accepts. Automaton has 26163 states and 31501 transitions. Word has length 309 [2018-07-24 01:23:35,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:35,146 INFO L471 AbstractCegarLoop]: Abstraction has 26163 states and 31501 transitions. [2018-07-24 01:23:35,147 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:23:35,147 INFO L276 IsEmpty]: Start isEmpty. Operand 26163 states and 31501 transitions. [2018-07-24 01:23:35,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-07-24 01:23:35,178 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:35,179 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:23:35,179 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:35,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1119691337, now seen corresponding path program 1 times [2018-07-24 01:23:35,180 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:35,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:35,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:35,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:35,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:35,561 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:23:35,561 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:35,562 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:23:35,562 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:23:35,562 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:23:35,562 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:23:35,563 INFO L87 Difference]: Start difference. First operand 26163 states and 31501 transitions. Second operand 4 states. [2018-07-24 01:23:37,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:37,413 INFO L93 Difference]: Finished difference Result 69630 states and 83778 transitions. [2018-07-24 01:23:37,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:23:37,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 317 [2018-07-24 01:23:37,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:37,461 INFO L225 Difference]: With dead ends: 69630 [2018-07-24 01:23:37,461 INFO L226 Difference]: Without dead ends: 43469 [2018-07-24 01:23:37,484 INFO L573 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 [2018-07-24 01:23:37,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43469 states. [2018-07-24 01:23:38,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43469 to 42625. [2018-07-24 01:23:38,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42625 states. [2018-07-24 01:23:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42625 states to 42625 states and 50779 transitions. [2018-07-24 01:23:38,333 INFO L78 Accepts]: Start accepts. Automaton has 42625 states and 50779 transitions. Word has length 317 [2018-07-24 01:23:38,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:38,333 INFO L471 AbstractCegarLoop]: Abstraction has 42625 states and 50779 transitions. [2018-07-24 01:23:38,333 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:23:38,334 INFO L276 IsEmpty]: Start isEmpty. Operand 42625 states and 50779 transitions. [2018-07-24 01:23:38,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2018-07-24 01:23:38,376 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:38,377 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:23:38,377 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:38,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1632998544, now seen corresponding path program 1 times [2018-07-24 01:23:38,378 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:38,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:38,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:38,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:38,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:38,831 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-07-24 01:23:38,831 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:38,831 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:23:38,832 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:23:38,832 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:23:38,832 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:23:38,832 INFO L87 Difference]: Start difference. First operand 42625 states and 50779 transitions. Second operand 3 states. [2018-07-24 01:23:40,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:40,516 INFO L93 Difference]: Finished difference Result 88752 states and 105692 transitions. [2018-07-24 01:23:40,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:23:40,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 475 [2018-07-24 01:23:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:40,562 INFO L225 Difference]: With dead ends: 88752 [2018-07-24 01:23:40,563 INFO L226 Difference]: Without dead ends: 46129 [2018-07-24 01:23:40,591 INFO L573 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 [2018-07-24 01:23:40,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46129 states. [2018-07-24 01:23:41,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46129 to 46093. [2018-07-24 01:23:41,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46093 states. [2018-07-24 01:23:41,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46093 states to 46093 states and 54243 transitions. [2018-07-24 01:23:41,100 INFO L78 Accepts]: Start accepts. Automaton has 46093 states and 54243 transitions. Word has length 475 [2018-07-24 01:23:41,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:41,101 INFO L471 AbstractCegarLoop]: Abstraction has 46093 states and 54243 transitions. [2018-07-24 01:23:41,101 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:23:41,101 INFO L276 IsEmpty]: Start isEmpty. Operand 46093 states and 54243 transitions. [2018-07-24 01:23:41,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2018-07-24 01:23:41,527 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:41,527 INFO L353 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-07-24 01:23:41,528 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:41,528 INFO L82 PathProgramCache]: Analyzing trace with hash 982627749, now seen corresponding path program 1 times [2018-07-24 01:23:41,528 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:41,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:41,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:41,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:41,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:42,115 WARN L169 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-07-24 01:23:42,272 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-07-24 01:23:42,272 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:23:42,272 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:23:42,273 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:23:42,273 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:23:42,273 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:23:42,274 INFO L87 Difference]: Start difference. First operand 46093 states and 54243 transitions. Second operand 4 states. [2018-07-24 01:23:44,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:23:44,317 INFO L93 Difference]: Finished difference Result 103484 states and 122093 transitions. [2018-07-24 01:23:44,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:23:44,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 519 [2018-07-24 01:23:44,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:23:44,378 INFO L225 Difference]: With dead ends: 103484 [2018-07-24 01:23:44,379 INFO L226 Difference]: Without dead ends: 57393 [2018-07-24 01:23:44,411 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:23:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57393 states. [2018-07-24 01:23:44,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57393 to 48949. [2018-07-24 01:23:44,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48949 states. [2018-07-24 01:23:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48949 states to 48949 states and 56780 transitions. [2018-07-24 01:23:44,941 INFO L78 Accepts]: Start accepts. Automaton has 48949 states and 56780 transitions. Word has length 519 [2018-07-24 01:23:44,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:23:44,942 INFO L471 AbstractCegarLoop]: Abstraction has 48949 states and 56780 transitions. [2018-07-24 01:23:44,942 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:23:44,942 INFO L276 IsEmpty]: Start isEmpty. Operand 48949 states and 56780 transitions. [2018-07-24 01:23:44,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2018-07-24 01:23:44,984 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:23:44,984 INFO L353 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:23:44,984 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:23:44,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1539145095, now seen corresponding path program 1 times [2018-07-24 01:23:44,985 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:23:44,985 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:23:44,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:44,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:44,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:23:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:45,625 WARN L169 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-07-24 01:23:46,201 WARN L169 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-07-24 01:23:46,644 WARN L169 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2018-07-24 01:23:46,774 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2018-07-24 01:23:47,006 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2018-07-24 01:23:48,111 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 349 proven. 5 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-07-24 01:23:48,112 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:23:48,112 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-24 01:23:48,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:23:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:23:48,440 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:23:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 535 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-07-24 01:23:48,693 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:23:48,694 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-07-24 01:23:48,696 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-24 01:23:48,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-24 01:23:48,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-07-24 01:23:48,697 INFO L87 Difference]: Start difference. First operand 48949 states and 56780 transitions. Second operand 10 states. [2018-07-24 01:23:48,909 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2018-07-24 01:24:00,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:24:00,502 INFO L93 Difference]: Finished difference Result 144760 states and 167224 transitions. [2018-07-24 01:24:00,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 01:24:00,503 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 527 [2018-07-24 01:24:00,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:24:00,601 INFO L225 Difference]: With dead ends: 144760 [2018-07-24 01:24:00,601 INFO L226 Difference]: Without dead ends: 95813 [2018-07-24 01:24:00,645 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 532 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2018-07-24 01:24:00,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95813 states. [2018-07-24 01:24:01,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95813 to 72353. [2018-07-24 01:24:01,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72353 states. [2018-07-24 01:24:01,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72353 states to 72353 states and 81475 transitions. [2018-07-24 01:24:01,601 INFO L78 Accepts]: Start accepts. Automaton has 72353 states and 81475 transitions. Word has length 527 [2018-07-24 01:24:01,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:24:01,602 INFO L471 AbstractCegarLoop]: Abstraction has 72353 states and 81475 transitions. [2018-07-24 01:24:01,602 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-24 01:24:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 72353 states and 81475 transitions. [2018-07-24 01:24:01,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2018-07-24 01:24:01,683 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:24:01,683 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-07-24 01:24:01,683 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:24:01,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1836680838, now seen corresponding path program 1 times [2018-07-24 01:24:01,684 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:24:01,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:24:01,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:01,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:24:01,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:24:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 907 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2018-07-24 01:24:02,917 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:24:02,917 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:24:02,918 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:24:02,919 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:24:02,919 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:24:02,920 INFO L87 Difference]: Start difference. First operand 72353 states and 81475 transitions. Second operand 3 states. [2018-07-24 01:24:04,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:24:04,853 INFO L93 Difference]: Finished difference Result 177120 states and 198636 transitions. [2018-07-24 01:24:04,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:24:04,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 591 [2018-07-24 01:24:04,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:24:04,965 INFO L225 Difference]: With dead ends: 177120 [2018-07-24 01:24:04,965 INFO L226 Difference]: Without dead ends: 104769 [2018-07-24 01:24:05,007 INFO L573 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 [2018-07-24 01:24:05,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104769 states. [2018-07-24 01:24:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104769 to 101056. [2018-07-24 01:24:05,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101056 states. [2018-07-24 01:24:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101056 states to 101056 states and 110640 transitions. [2018-07-24 01:24:06,067 INFO L78 Accepts]: Start accepts. Automaton has 101056 states and 110640 transitions. Word has length 591 [2018-07-24 01:24:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:24:06,068 INFO L471 AbstractCegarLoop]: Abstraction has 101056 states and 110640 transitions. [2018-07-24 01:24:06,068 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:24:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 101056 states and 110640 transitions. [2018-07-24 01:24:06,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2018-07-24 01:24:06,157 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:24:06,157 INFO L353 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-07-24 01:24:06,158 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:24:06,158 INFO L82 PathProgramCache]: Analyzing trace with hash 306640462, now seen corresponding path program 1 times [2018-07-24 01:24:06,158 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:24:06,158 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:24:06,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:06,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:24:06,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:24:06,957 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2018-07-24 01:24:06,957 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:24:06,957 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:24:06,958 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:24:06,958 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:24:06,958 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:24:06,958 INFO L87 Difference]: Start difference. First operand 101056 states and 110640 transitions. Second operand 4 states. [2018-07-24 01:24:08,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:24:08,885 INFO L93 Difference]: Finished difference Result 198837 states and 217797 transitions. [2018-07-24 01:24:08,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:24:08,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 602 [2018-07-24 01:24:08,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:24:08,986 INFO L225 Difference]: With dead ends: 198837 [2018-07-24 01:24:08,986 INFO L226 Difference]: Without dead ends: 100649 [2018-07-24 01:24:09,039 INFO L573 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 [2018-07-24 01:24:09,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100649 states. [2018-07-24 01:24:09,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100649 to 91198. [2018-07-24 01:24:09,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91198 states. [2018-07-24 01:24:10,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91198 states to 91198 states and 99463 transitions. [2018-07-24 01:24:10,025 INFO L78 Accepts]: Start accepts. Automaton has 91198 states and 99463 transitions. Word has length 602 [2018-07-24 01:24:10,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:24:10,026 INFO L471 AbstractCegarLoop]: Abstraction has 91198 states and 99463 transitions. [2018-07-24 01:24:10,026 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:24:10,026 INFO L276 IsEmpty]: Start isEmpty. Operand 91198 states and 99463 transitions. [2018-07-24 01:24:10,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2018-07-24 01:24:10,091 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:24:10,091 INFO L353 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-07-24 01:24:10,091 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:24:10,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1497722409, now seen corresponding path program 1 times [2018-07-24 01:24:10,092 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:24:10,092 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:24:10,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:10,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:24:10,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:24:10,592 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2018-07-24 01:24:10,592 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:24:10,592 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:24:10,593 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:24:10,593 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:24:10,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:24:10,594 INFO L87 Difference]: Start difference. First operand 91198 states and 99463 transitions. Second operand 4 states. [2018-07-24 01:24:14,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:24:14,196 INFO L93 Difference]: Finished difference Result 326698 states and 355700 transitions. [2018-07-24 01:24:14,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:24:14,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 604 [2018-07-24 01:24:14,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:24:14,446 INFO L225 Difference]: With dead ends: 326698 [2018-07-24 01:24:14,447 INFO L226 Difference]: Without dead ends: 237753 [2018-07-24 01:24:14,515 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:24:14,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237753 states. [2018-07-24 01:24:16,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237753 to 229547. [2018-07-24 01:24:16,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229547 states. [2018-07-24 01:24:18,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229547 states to 229547 states and 249797 transitions. [2018-07-24 01:24:18,249 INFO L78 Accepts]: Start accepts. Automaton has 229547 states and 249797 transitions. Word has length 604 [2018-07-24 01:24:18,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:24:18,250 INFO L471 AbstractCegarLoop]: Abstraction has 229547 states and 249797 transitions. [2018-07-24 01:24:18,250 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:24:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 229547 states and 249797 transitions. [2018-07-24 01:24:18,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2018-07-24 01:24:18,392 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:24:18,392 INFO L353 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 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, 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, 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] [2018-07-24 01:24:18,392 INFO L414 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:24:18,393 INFO L82 PathProgramCache]: Analyzing trace with hash -930029599, now seen corresponding path program 1 times [2018-07-24 01:24:18,393 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:24:18,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:24:18,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:18,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:24:18,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:24:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1336 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2018-07-24 01:24:18,793 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:24:18,793 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:24:18,794 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:24:18,794 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:24:18,794 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:24:18,794 INFO L87 Difference]: Start difference. First operand 229547 states and 249797 transitions. Second operand 3 states. [2018-07-24 01:24:21,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:24:21,137 INFO L93 Difference]: Finished difference Result 446820 states and 486471 transitions. [2018-07-24 01:24:21,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:24:21,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 669 [2018-07-24 01:24:21,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:24:21,397 INFO L225 Difference]: With dead ends: 446820 [2018-07-24 01:24:21,397 INFO L226 Difference]: Without dead ends: 219526 [2018-07-24 01:24:21,516 INFO L573 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 [2018-07-24 01:24:21,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219526 states. [2018-07-24 01:24:25,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219526 to 209675. [2018-07-24 01:24:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209675 states. [2018-07-24 01:24:25,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209675 states to 209675 states and 225208 transitions. [2018-07-24 01:24:25,255 INFO L78 Accepts]: Start accepts. Automaton has 209675 states and 225208 transitions. Word has length 669 [2018-07-24 01:24:25,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:24:25,255 INFO L471 AbstractCegarLoop]: Abstraction has 209675 states and 225208 transitions. [2018-07-24 01:24:25,255 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:24:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 209675 states and 225208 transitions. [2018-07-24 01:24:25,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2018-07-24 01:24:25,366 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:24:25,366 INFO L353 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 01:24:25,367 INFO L414 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:24:25,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1873609974, now seen corresponding path program 2 times [2018-07-24 01:24:25,367 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:24:25,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:24:25,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:25,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:24:25,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:24:26,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 467 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2018-07-24 01:24:26,341 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:24:26,341 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:24:26,342 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:24:26,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:24:26,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:24:26,343 INFO L87 Difference]: Start difference. First operand 209675 states and 225208 transitions. Second operand 3 states. [2018-07-24 01:24:28,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:24:28,777 INFO L93 Difference]: Finished difference Result 432037 states and 464144 transitions. [2018-07-24 01:24:28,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:24:28,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 670 [2018-07-24 01:24:28,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:24:28,979 INFO L225 Difference]: With dead ends: 432037 [2018-07-24 01:24:28,979 INFO L226 Difference]: Without dead ends: 204936 [2018-07-24 01:24:29,083 INFO L573 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 [2018-07-24 01:24:29,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204936 states. [2018-07-24 01:24:31,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204936 to 172950. [2018-07-24 01:24:31,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172950 states. [2018-07-24 01:24:31,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172950 states to 172950 states and 181820 transitions. [2018-07-24 01:24:31,947 INFO L78 Accepts]: Start accepts. Automaton has 172950 states and 181820 transitions. Word has length 670 [2018-07-24 01:24:31,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:24:31,947 INFO L471 AbstractCegarLoop]: Abstraction has 172950 states and 181820 transitions. [2018-07-24 01:24:31,947 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:24:31,947 INFO L276 IsEmpty]: Start isEmpty. Operand 172950 states and 181820 transitions. [2018-07-24 01:24:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2018-07-24 01:24:32,008 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:24:32,009 INFO L353 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 01:24:32,009 INFO L414 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:24:32,009 INFO L82 PathProgramCache]: Analyzing trace with hash 416762093, now seen corresponding path program 1 times [2018-07-24 01:24:32,009 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:24:32,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:24:32,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:32,011 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 01:24:32,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:24:32,506 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-24 01:24:32,795 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2018-07-24 01:24:32,954 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2018-07-24 01:24:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 814 proven. 5 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2018-07-24 01:24:34,402 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:24:34,402 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:24:34,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:24:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:24:34,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:24:35,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 985 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-07-24 01:24:35,239 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:24:35,239 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-07-24 01:24:35,241 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-24 01:24:35,241 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-24 01:24:35,242 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-07-24 01:24:35,242 INFO L87 Difference]: Start difference. First operand 172950 states and 181820 transitions. Second operand 10 states. [2018-07-24 01:24:44,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:24:44,014 INFO L93 Difference]: Finished difference Result 465425 states and 489380 transitions. [2018-07-24 01:24:44,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 01:24:44,014 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 677 [2018-07-24 01:24:44,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:24:44,341 INFO L225 Difference]: With dead ends: 465425 [2018-07-24 01:24:44,341 INFO L226 Difference]: Without dead ends: 287348 [2018-07-24 01:24:44,483 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 677 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-07-24 01:24:44,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287348 states. [2018-07-24 01:24:47,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287348 to 283647. [2018-07-24 01:24:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283647 states. [2018-07-24 01:24:48,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283647 states to 283647 states and 297388 transitions. [2018-07-24 01:24:48,067 INFO L78 Accepts]: Start accepts. Automaton has 283647 states and 297388 transitions. Word has length 677 [2018-07-24 01:24:48,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:24:48,067 INFO L471 AbstractCegarLoop]: Abstraction has 283647 states and 297388 transitions. [2018-07-24 01:24:48,067 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-24 01:24:48,068 INFO L276 IsEmpty]: Start isEmpty. Operand 283647 states and 297388 transitions. [2018-07-24 01:24:48,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2018-07-24 01:24:48,206 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:24:48,207 INFO L353 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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] [2018-07-24 01:24:48,207 INFO L414 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:24:48,208 INFO L82 PathProgramCache]: Analyzing trace with hash -554976329, now seen corresponding path program 1 times [2018-07-24 01:24:48,208 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:24:48,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:24:48,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:48,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:24:48,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:24:49,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2290 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 2066 trivial. 0 not checked. [2018-07-24 01:24:49,568 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:24:49,568 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 01:24:49,569 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:24:49,569 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:24:49,569 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:24:49,569 INFO L87 Difference]: Start difference. First operand 283647 states and 297388 transitions. Second operand 3 states. [2018-07-24 01:24:52,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:24:52,608 INFO L93 Difference]: Finished difference Result 660328 states and 691134 transitions. [2018-07-24 01:24:52,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:24:52,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 834 [2018-07-24 01:24:52,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:24:54,213 INFO L225 Difference]: With dead ends: 660328 [2018-07-24 01:24:54,213 INFO L226 Difference]: Without dead ends: 368274 [2018-07-24 01:24:54,363 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:24:54,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368274 states. [2018-07-24 01:24:58,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368274 to 343679. [2018-07-24 01:24:58,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343679 states. [2018-07-24 01:24:59,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343679 states to 343679 states and 359916 transitions. [2018-07-24 01:24:59,100 INFO L78 Accepts]: Start accepts. Automaton has 343679 states and 359916 transitions. Word has length 834 [2018-07-24 01:24:59,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:24:59,100 INFO L471 AbstractCegarLoop]: Abstraction has 343679 states and 359916 transitions. [2018-07-24 01:24:59,100 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:24:59,100 INFO L276 IsEmpty]: Start isEmpty. Operand 343679 states and 359916 transitions. [2018-07-24 01:24:59,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2018-07-24 01:24:59,294 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:24:59,295 INFO L353 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 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, 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, 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] [2018-07-24 01:24:59,295 INFO L414 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:24:59,295 INFO L82 PathProgramCache]: Analyzing trace with hash 868774829, now seen corresponding path program 1 times [2018-07-24 01:24:59,295 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:24:59,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:24:59,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:59,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:24:59,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:24:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:25:00,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2314 backedges. 755 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2018-07-24 01:25:00,774 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:25:00,775 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:25:00,775 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:25:00,776 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:25:00,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:25:00,776 INFO L87 Difference]: Start difference. First operand 343679 states and 359916 transitions. Second operand 4 states. [2018-07-24 01:25:05,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:25:05,473 INFO L93 Difference]: Finished difference Result 691125 states and 723859 transitions. [2018-07-24 01:25:05,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:25:05,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 837 [2018-07-24 01:25:05,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:25:05,889 INFO L225 Difference]: With dead ends: 691125 [2018-07-24 01:25:05,889 INFO L226 Difference]: Without dead ends: 347247 [2018-07-24 01:25:06,053 INFO L573 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 [2018-07-24 01:25:06,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347247 states. [2018-07-24 01:25:15,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347247 to 340415. [2018-07-24 01:25:15,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340415 states. [2018-07-24 01:25:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340415 states to 340415 states and 356517 transitions. [2018-07-24 01:25:16,354 INFO L78 Accepts]: Start accepts. Automaton has 340415 states and 356517 transitions. Word has length 837 [2018-07-24 01:25:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:25:16,355 INFO L471 AbstractCegarLoop]: Abstraction has 340415 states and 356517 transitions. [2018-07-24 01:25:16,355 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:25:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 340415 states and 356517 transitions. [2018-07-24 01:25:16,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2018-07-24 01:25:16,537 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:25:16,538 INFO L353 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 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, 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, 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] [2018-07-24 01:25:16,538 INFO L414 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:25:16,538 INFO L82 PathProgramCache]: Analyzing trace with hash 490887779, now seen corresponding path program 1 times [2018-07-24 01:25:16,538 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:25:16,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:25:16,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:25:16,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:25:16,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:25:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:25:16,938 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-07-24 01:25:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 291 proven. 4 refuted. 0 times theorem prover too weak. 2066 trivial. 0 not checked. [2018-07-24 01:25:17,325 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:25:17,326 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-24 01:25:17,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:25:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:25:17,798 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:25:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1573 proven. 0 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2018-07-24 01:25:18,979 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:25:18,980 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-24 01:25:18,980 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 01:25:18,981 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 01:25:18,981 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 01:25:18,981 INFO L87 Difference]: Start difference. First operand 340415 states and 356517 transitions. Second operand 6 states. [2018-07-24 01:25:26,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:25:26,836 INFO L93 Difference]: Finished difference Result 796958 states and 834189 transitions. [2018-07-24 01:25:26,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 01:25:26,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 842 [2018-07-24 01:25:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:25:27,362 INFO L225 Difference]: With dead ends: 796958 [2018-07-24 01:25:27,363 INFO L226 Difference]: Without dead ends: 440347 [2018-07-24 01:25:27,557 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-07-24 01:25:27,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440347 states. [2018-07-24 01:25:33,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440347 to 390087. [2018-07-24 01:25:33,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390087 states. [2018-07-24 01:25:33,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390087 states to 390087 states and 407719 transitions. [2018-07-24 01:25:33,962 INFO L78 Accepts]: Start accepts. Automaton has 390087 states and 407719 transitions. Word has length 842 [2018-07-24 01:25:33,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:25:33,962 INFO L471 AbstractCegarLoop]: Abstraction has 390087 states and 407719 transitions. [2018-07-24 01:25:33,962 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 01:25:33,962 INFO L276 IsEmpty]: Start isEmpty. Operand 390087 states and 407719 transitions. [2018-07-24 01:25:34,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2018-07-24 01:25:34,224 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:25:34,225 INFO L353 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 01:25:34,225 INFO L414 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:25:34,225 INFO L82 PathProgramCache]: Analyzing trace with hash 310988852, now seen corresponding path program 1 times [2018-07-24 01:25:34,225 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:25:34,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:25:34,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:25:34,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:25:34,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:25:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:25:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2452 backedges. 789 proven. 0 refuted. 0 times theorem prover too weak. 1663 trivial. 0 not checked. [2018-07-24 01:25:36,089 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:25:36,089 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 01:25:36,090 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:25:36,090 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:25:36,090 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:25:36,090 INFO L87 Difference]: Start difference. First operand 390087 states and 407719 transitions. Second operand 3 states. [2018-07-24 01:25:40,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:25:40,039 INFO L93 Difference]: Finished difference Result 777873 states and 813055 transitions. [2018-07-24 01:25:40,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:25:40,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 903 [2018-07-24 01:25:40,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:25:40,547 INFO L225 Difference]: With dead ends: 777873 [2018-07-24 01:25:40,547 INFO L226 Difference]: Without dead ends: 389015 [2018-07-24 01:25:40,750 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:25:41,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389015 states. [2018-07-24 01:25:52,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389015 to 389000. [2018-07-24 01:25:52,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389000 states. [2018-07-24 01:25:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389000 states to 389000 states and 406527 transitions. [2018-07-24 01:25:52,918 INFO L78 Accepts]: Start accepts. Automaton has 389000 states and 406527 transitions. Word has length 903 [2018-07-24 01:25:52,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:25:52,918 INFO L471 AbstractCegarLoop]: Abstraction has 389000 states and 406527 transitions. [2018-07-24 01:25:52,918 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:25:52,919 INFO L276 IsEmpty]: Start isEmpty. Operand 389000 states and 406527 transitions. [2018-07-24 01:25:53,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2018-07-24 01:25:53,104 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:25:53,104 INFO L353 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 01:25:53,104 INFO L414 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:25:53,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1560072158, now seen corresponding path program 1 times [2018-07-24 01:25:53,105 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:25:53,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:25:53,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:25:53,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:25:53,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:25:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:25:54,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2608 backedges. 828 proven. 5 refuted. 0 times theorem prover too weak. 1775 trivial. 0 not checked. [2018-07-24 01:25:54,650 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:25:54,651 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:25:54,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:25:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:25:55,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:25:56,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2608 backedges. 1664 proven. 0 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2018-07-24 01:25:56,539 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:25:56,540 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-07-24 01:25:56,542 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 01:25:56,542 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 01:25:56,543 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 01:25:56,543 INFO L87 Difference]: Start difference. First operand 389000 states and 406527 transitions. Second operand 6 states. [2018-07-24 01:26:05,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:26:05,972 INFO L93 Difference]: Finished difference Result 498625 states and 521351 transitions. [2018-07-24 01:26:05,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 01:26:05,973 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 919 [2018-07-24 01:26:05,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:26:05,974 INFO L225 Difference]: With dead ends: 498625 [2018-07-24 01:26:05,974 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 01:26:06,109 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 929 GetRequests, 922 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-07-24 01:26:06,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 01:26:06,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 01:26:06,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 01:26:06,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 01:26:06,110 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 919 [2018-07-24 01:26:06,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:26:06,111 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 01:26:06,111 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 01:26:06,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 01:26:06,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 01:26:06,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 01:26:06,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:06,810 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:07,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:07,269 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:08,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:08,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:08,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:08,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:08,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:09,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:09,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:09,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:09,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:09,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:09,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:09,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:09,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:09,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:10,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:10,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:10,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:10,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:10,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:10,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:10,815 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:10,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:11,003 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:11,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:11,382 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:11,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:11,529 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:11,686 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:12,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:12,477 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:12,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:12,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:13,247 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:13,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:13,450 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:13,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:14,518 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:14,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:14,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:15,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:15,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:15,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:15,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:15,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:15,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:15,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:16,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:16,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:16,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:16,308 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:16,762 WARN L169 SmtUtils]: Spent 10.62 s on a formula simplification. DAG size of input: 1593 DAG size of output: 1084 [2018-07-24 01:26:17,064 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:17,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:17,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:17,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:17,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:17,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:17,855 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:18,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:18,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:18,811 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:18,816 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:18,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:18,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:19,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:20,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:20,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:20,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:20,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:20,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:20,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:20,810 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:21,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:21,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:21,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:21,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:22,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:22,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:22,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:22,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:23,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:23,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:23,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:24,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:24,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:24,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:24,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:24,894 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:24,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:24,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:25,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:25,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:25,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:25,473 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:26:25,932 WARN L169 SmtUtils]: Spent 9.16 s on a formula simplification. DAG size of input: 1593 DAG size of output: 1084 Received shutdown request... [2018-07-24 01:26:29,033 WARN L177 SmtUtils]: Removed 3 from assertion stack [2018-07-24 01:26:29,033 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-24 01:26:29,035 INFO L168 Benchmark]: Toolchain (without parser) took 209769.52 ms. Allocated memory was 1.5 GB in the beginning and 5.9 GB in the end (delta: 4.4 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-07-24 01:26:29,036 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-07-24 01:26:29,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1351.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-07-24 01:26:29,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-24 01:26:29,038 INFO L168 Benchmark]: Boogie Preprocessor took 401.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -910.0 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. [2018-07-24 01:26:29,038 INFO L168 Benchmark]: RCFGBuilder took 5449.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 288.8 MB). Peak memory consumption was 288.8 MB. Max. memory is 7.1 GB. [2018-07-24 01:26:29,039 INFO L168 Benchmark]: TraceAbstraction took 202409.72 ms. Allocated memory was 2.3 GB in the beginning and 5.9 GB in the end (delta: 3.6 GB). Free memory was 1.9 GB in the beginning and 3.6 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-07-24 01:26:29,047 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1351.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 151.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 401.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -910.0 MB). Peak memory consumption was 48.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5449.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 288.8 MB). Peak memory consumption was 288.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202409.72 ms. Allocated memory was 2.3 GB in the beginning and 5.9 GB in the end (delta: 3.6 GB). Free memory was 1.9 GB in the beginning and 3.6 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1611]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 1039. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem03_label00_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_01-26-29-067.csv Completed graceful shutdown