java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label55_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 20:05:54,507 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:05:54,509 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:05:54,522 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:05:54,522 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:05:54,524 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:05:54,525 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:05:54,527 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:05:54,529 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:05:54,530 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:05:54,531 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:05:54,531 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:05:54,532 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:05:54,533 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:05:54,534 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:05:54,535 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:05:54,536 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:05:54,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:05:54,540 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:05:54,542 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:05:54,543 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:05:54,545 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:05:54,550 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:05:54,551 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:05:54,551 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:05:54,552 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:05:54,553 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:05:54,554 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:05:54,555 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:05:54,556 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:05:54,556 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:05:54,557 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-26 20:05:54,560 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-26 20:05:54,576 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:05:54,576 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:05:54,577 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:05:54,577 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 20:05:54,578 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 20:05:54,578 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 20:05:54,578 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 20:05:54,578 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:05:54,579 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:05:54,579 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:05:54,579 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:05:54,579 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:05:54,579 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:05:54,580 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:05:54,580 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:05:54,580 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:05:54,580 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 20:05:54,580 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:05:54,581 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 20:05:54,581 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:05:54,581 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:05:54,581 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:05:54,582 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:05:54,582 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 20:05:54,582 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:05:54,582 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:05:54,582 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 20:05:54,583 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 20:05:54,643 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:05:54,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:05:54,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:05:54,667 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:05:54,668 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:05:54,669 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label55_true-unreach-call.c [2018-10-26 20:05:54,737 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc233b73d/196ba52fce274b2f9ad20b290f9afe72/FLAG1a34c4fb6 [2018-10-26 20:05:55,435 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:05:55,436 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label55_true-unreach-call.c [2018-10-26 20:05:55,456 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc233b73d/196ba52fce274b2f9ad20b290f9afe72/FLAG1a34c4fb6 [2018-10-26 20:05:55,472 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dc233b73d/196ba52fce274b2f9ad20b290f9afe72 [2018-10-26 20:05:55,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:05:55,486 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 20:05:55,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:05:55,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:05:55,491 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:05:55,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:05:55" (1/1) ... [2018-10-26 20:05:55,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68109397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:55, skipping insertion in model container [2018-10-26 20:05:55,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:05:55" (1/1) ... [2018-10-26 20:05:55,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:05:55,601 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:05:56,369 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:05:56,376 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:05:56,638 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:05:56,662 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:05:56,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56 WrapperNode [2018-10-26 20:05:56,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:05:56,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 20:05:56,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 20:05:56,664 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 20:05:56,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56" (1/1) ... [2018-10-26 20:05:56,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56" (1/1) ... [2018-10-26 20:05:57,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 20:05:57,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:05:57,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:05:57,017 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:05:57,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56" (1/1) ... [2018-10-26 20:05:57,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56" (1/1) ... [2018-10-26 20:05:57,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56" (1/1) ... [2018-10-26 20:05:57,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56" (1/1) ... [2018-10-26 20:05:57,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56" (1/1) ... [2018-10-26 20:05:57,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56" (1/1) ... [2018-10-26 20:05:57,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56" (1/1) ... [2018-10-26 20:05:57,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:05:57,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:05:57,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:05:57,186 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:05:57,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:05:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 20:05:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:05:57,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:06:03,122 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:06:03,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:06:03 BoogieIcfgContainer [2018-10-26 20:06:03,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:06:03,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 20:06:03,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 20:06:03,131 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 20:06:03,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:05:55" (1/3) ... [2018-10-26 20:06:03,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e4afdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:06:03, skipping insertion in model container [2018-10-26 20:06:03,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:05:56" (2/3) ... [2018-10-26 20:06:03,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e4afdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:06:03, skipping insertion in model container [2018-10-26 20:06:03,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:06:03" (3/3) ... [2018-10-26 20:06:03,136 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label55_true-unreach-call.c [2018-10-26 20:06:03,147 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 20:06:03,160 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 20:06:03,179 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 20:06:03,229 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 20:06:03,230 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 20:06:03,230 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 20:06:03,230 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 20:06:03,230 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 20:06:03,231 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 20:06:03,231 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 20:06:03,231 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 20:06:03,231 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 20:06:03,265 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2018-10-26 20:06:03,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-10-26 20:06:03,283 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:06:03,284 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:06:03,287 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:06:03,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:06:03,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1176819894, now seen corresponding path program 1 times [2018-10-26 20:06:03,296 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:06:03,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:06:03,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:03,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:03,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:04,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:06:04,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:06:04,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 20:06:04,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:06:04,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:06:04,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:04,123 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2018-10-26 20:06:07,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:06:07,302 INFO L93 Difference]: Finished difference Result 1089 states and 1954 transitions. [2018-10-26 20:06:07,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:06:07,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2018-10-26 20:06:07,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:06:07,331 INFO L225 Difference]: With dead ends: 1089 [2018-10-26 20:06:07,331 INFO L226 Difference]: Without dead ends: 779 [2018-10-26 20:06:07,337 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:07,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2018-10-26 20:06:07,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 515. [2018-10-26 20:06:07,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2018-10-26 20:06:07,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 887 transitions. [2018-10-26 20:06:07,436 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 887 transitions. Word has length 163 [2018-10-26 20:06:07,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:06:07,437 INFO L481 AbstractCegarLoop]: Abstraction has 515 states and 887 transitions. [2018-10-26 20:06:07,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:06:07,437 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 887 transitions. [2018-10-26 20:06:07,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-10-26 20:06:07,444 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:06:07,444 INFO L375 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] [2018-10-26 20:06:07,444 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:06:07,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:06:07,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1931506105, now seen corresponding path program 1 times [2018-10-26 20:06:07,445 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:06:07,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:06:07,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:07,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:07,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:07,781 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:06:07,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:06:07,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 20:06:07,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:06:07,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:06:07,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:07,786 INFO L87 Difference]: Start difference. First operand 515 states and 887 transitions. Second operand 4 states. [2018-10-26 20:06:12,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:06:12,108 INFO L93 Difference]: Finished difference Result 1903 states and 3379 transitions. [2018-10-26 20:06:12,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:06:12,108 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 169 [2018-10-26 20:06:12,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:06:12,117 INFO L225 Difference]: With dead ends: 1903 [2018-10-26 20:06:12,117 INFO L226 Difference]: Without dead ends: 1390 [2018-10-26 20:06:12,121 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:12,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2018-10-26 20:06:12,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 927. [2018-10-26 20:06:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2018-10-26 20:06:12,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1521 transitions. [2018-10-26 20:06:12,156 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1521 transitions. Word has length 169 [2018-10-26 20:06:12,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:06:12,156 INFO L481 AbstractCegarLoop]: Abstraction has 927 states and 1521 transitions. [2018-10-26 20:06:12,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:06:12,157 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1521 transitions. [2018-10-26 20:06:12,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-26 20:06:12,161 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:06:12,161 INFO L375 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] [2018-10-26 20:06:12,162 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:06:12,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:06:12,162 INFO L82 PathProgramCache]: Analyzing trace with hash 753893355, now seen corresponding path program 1 times [2018-10-26 20:06:12,162 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:06:12,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:06:12,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:12,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:12,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:12,275 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:06:12,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:06:12,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 20:06:12,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 20:06:12,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 20:06:12,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 20:06:12,277 INFO L87 Difference]: Start difference. First operand 927 states and 1521 transitions. Second operand 3 states. [2018-10-26 20:06:13,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:06:13,982 INFO L93 Difference]: Finished difference Result 2684 states and 4465 transitions. [2018-10-26 20:06:13,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 20:06:13,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2018-10-26 20:06:13,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:06:13,993 INFO L225 Difference]: With dead ends: 2684 [2018-10-26 20:06:13,993 INFO L226 Difference]: Without dead ends: 1759 [2018-10-26 20:06:13,996 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 20:06:13,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2018-10-26 20:06:14,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1744. [2018-10-26 20:06:14,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1744 states. [2018-10-26 20:06:14,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2808 transitions. [2018-10-26 20:06:14,034 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2808 transitions. Word has length 172 [2018-10-26 20:06:14,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:06:14,034 INFO L481 AbstractCegarLoop]: Abstraction has 1744 states and 2808 transitions. [2018-10-26 20:06:14,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 20:06:14,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2808 transitions. [2018-10-26 20:06:14,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-10-26 20:06:14,039 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:06:14,039 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 20:06:14,040 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:06:14,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:06:14,040 INFO L82 PathProgramCache]: Analyzing trace with hash 787191427, now seen corresponding path program 1 times [2018-10-26 20:06:14,040 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:06:14,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:06:14,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:14,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:14,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:14,145 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:06:14,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:06:14,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 20:06:14,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:06:14,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:06:14,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:14,147 INFO L87 Difference]: Start difference. First operand 1744 states and 2808 transitions. Second operand 4 states. [2018-10-26 20:06:16,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:06:16,760 INFO L93 Difference]: Finished difference Result 6800 states and 11033 transitions. [2018-10-26 20:06:16,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:06:16,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 173 [2018-10-26 20:06:16,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:06:16,785 INFO L225 Difference]: With dead ends: 6800 [2018-10-26 20:06:16,785 INFO L226 Difference]: Without dead ends: 5058 [2018-10-26 20:06:16,788 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:16,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5058 states. [2018-10-26 20:06:16,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5058 to 3383. [2018-10-26 20:06:16,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3383 states. [2018-10-26 20:06:16,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 5097 transitions. [2018-10-26 20:06:16,864 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 5097 transitions. Word has length 173 [2018-10-26 20:06:16,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:06:16,864 INFO L481 AbstractCegarLoop]: Abstraction has 3383 states and 5097 transitions. [2018-10-26 20:06:16,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:06:16,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 5097 transitions. [2018-10-26 20:06:16,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-26 20:06:16,871 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:06:16,872 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 20:06:16,872 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:06:16,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:06:16,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1229143632, now seen corresponding path program 1 times [2018-10-26 20:06:16,873 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:06:16,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:06:16,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:16,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:16,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:06:17,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:06:17,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 20:06:17,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 20:06:17,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 20:06:17,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 20:06:17,024 INFO L87 Difference]: Start difference. First operand 3383 states and 5097 transitions. Second operand 3 states. [2018-10-26 20:06:18,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:06:18,335 INFO L93 Difference]: Finished difference Result 8205 states and 12323 transitions. [2018-10-26 20:06:18,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 20:06:18,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2018-10-26 20:06:18,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:06:18,354 INFO L225 Difference]: With dead ends: 8205 [2018-10-26 20:06:18,354 INFO L226 Difference]: Without dead ends: 4824 [2018-10-26 20:06:18,360 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 20:06:18,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4824 states. [2018-10-26 20:06:18,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4824 to 4823. [2018-10-26 20:06:18,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4823 states. [2018-10-26 20:06:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4823 states to 4823 states and 7118 transitions. [2018-10-26 20:06:18,454 INFO L78 Accepts]: Start accepts. Automaton has 4823 states and 7118 transitions. Word has length 174 [2018-10-26 20:06:18,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:06:18,454 INFO L481 AbstractCegarLoop]: Abstraction has 4823 states and 7118 transitions. [2018-10-26 20:06:18,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 20:06:18,455 INFO L276 IsEmpty]: Start isEmpty. Operand 4823 states and 7118 transitions. [2018-10-26 20:06:18,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-26 20:06:18,464 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:06:18,465 INFO L375 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] [2018-10-26 20:06:18,465 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:06:18,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:06:18,465 INFO L82 PathProgramCache]: Analyzing trace with hash -2115229801, now seen corresponding path program 1 times [2018-10-26 20:06:18,466 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:06:18,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:06:18,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:18,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:18,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:18,895 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-26 20:06:18,996 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-26 20:06:18,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:06:18,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 20:06:18,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:06:18,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:06:18,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:18,998 INFO L87 Difference]: Start difference. First operand 4823 states and 7118 transitions. Second operand 4 states. [2018-10-26 20:06:21,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:06:21,564 INFO L93 Difference]: Finished difference Result 17399 states and 25715 transitions. [2018-10-26 20:06:21,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:06:21,565 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 180 [2018-10-26 20:06:21,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:06:21,617 INFO L225 Difference]: With dead ends: 17399 [2018-10-26 20:06:21,618 INFO L226 Difference]: Without dead ends: 12578 [2018-10-26 20:06:21,625 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:21,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12578 states. [2018-10-26 20:06:21,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12578 to 12576. [2018-10-26 20:06:21,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12576 states. [2018-10-26 20:06:21,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12576 states to 12576 states and 16796 transitions. [2018-10-26 20:06:21,833 INFO L78 Accepts]: Start accepts. Automaton has 12576 states and 16796 transitions. Word has length 180 [2018-10-26 20:06:21,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:06:21,833 INFO L481 AbstractCegarLoop]: Abstraction has 12576 states and 16796 transitions. [2018-10-26 20:06:21,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:06:21,837 INFO L276 IsEmpty]: Start isEmpty. Operand 12576 states and 16796 transitions. [2018-10-26 20:06:21,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-10-26 20:06:21,858 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:06:21,858 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:06:21,858 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:06:21,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:06:21,859 INFO L82 PathProgramCache]: Analyzing trace with hash 473802841, now seen corresponding path program 1 times [2018-10-26 20:06:21,859 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:06:21,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:06:21,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:21,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:21,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-26 20:06:22,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:06:22,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 20:06:22,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:06:22,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:06:22,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:22,075 INFO L87 Difference]: Start difference. First operand 12576 states and 16796 transitions. Second operand 4 states. [2018-10-26 20:06:24,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:06:24,685 INFO L93 Difference]: Finished difference Result 44990 states and 59446 transitions. [2018-10-26 20:06:24,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:06:24,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 200 [2018-10-26 20:06:24,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:06:24,757 INFO L225 Difference]: With dead ends: 44990 [2018-10-26 20:06:24,757 INFO L226 Difference]: Without dead ends: 32416 [2018-10-26 20:06:24,775 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:24,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32416 states. [2018-10-26 20:06:25,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32416 to 22575. [2018-10-26 20:06:25,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22575 states. [2018-10-26 20:06:25,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22575 states to 22575 states and 28454 transitions. [2018-10-26 20:06:25,136 INFO L78 Accepts]: Start accepts. Automaton has 22575 states and 28454 transitions. Word has length 200 [2018-10-26 20:06:25,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:06:25,137 INFO L481 AbstractCegarLoop]: Abstraction has 22575 states and 28454 transitions. [2018-10-26 20:06:25,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:06:25,137 INFO L276 IsEmpty]: Start isEmpty. Operand 22575 states and 28454 transitions. [2018-10-26 20:06:25,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-10-26 20:06:25,172 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:06:25,172 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:06:25,172 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:06:25,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:06:25,173 INFO L82 PathProgramCache]: Analyzing trace with hash 588046225, now seen corresponding path program 1 times [2018-10-26 20:06:25,173 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:06:25,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:06:25,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:25,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:25,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-26 20:06:25,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 20:06:25,668 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 20:06:25,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:25,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:06:25,964 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-26 20:06:25,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 20:06:25,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-26 20:06:26,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-26 20:06:26,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-26 20:06:26,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-26 20:06:26,001 INFO L87 Difference]: Start difference. First operand 22575 states and 28454 transitions. Second operand 8 states. [2018-10-26 20:06:26,249 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-26 20:06:26,952 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-26 20:06:27,960 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 20:06:36,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:06:36,465 INFO L93 Difference]: Finished difference Result 115596 states and 145027 transitions. [2018-10-26 20:06:36,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-26 20:06:36,465 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 226 [2018-10-26 20:06:36,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:06:36,658 INFO L225 Difference]: With dead ends: 115596 [2018-10-26 20:06:36,658 INFO L226 Difference]: Without dead ends: 93023 [2018-10-26 20:06:36,695 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2018-10-26 20:06:36,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93023 states. [2018-10-26 20:06:38,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93023 to 89334. [2018-10-26 20:06:38,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89334 states. [2018-10-26 20:06:38,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89334 states to 89334 states and 105618 transitions. [2018-10-26 20:06:38,399 INFO L78 Accepts]: Start accepts. Automaton has 89334 states and 105618 transitions. Word has length 226 [2018-10-26 20:06:38,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:06:38,399 INFO L481 AbstractCegarLoop]: Abstraction has 89334 states and 105618 transitions. [2018-10-26 20:06:38,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-26 20:06:38,399 INFO L276 IsEmpty]: Start isEmpty. Operand 89334 states and 105618 transitions. [2018-10-26 20:06:38,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-10-26 20:06:38,422 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:06:38,422 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 20:06:38,423 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:06:38,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:06:38,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1208092616, now seen corresponding path program 1 times [2018-10-26 20:06:38,423 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:06:38,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:06:38,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:38,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:38,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:06:38,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:06:38,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 20:06:38,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:06:38,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:06:38,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:38,765 INFO L87 Difference]: Start difference. First operand 89334 states and 105618 transitions. Second operand 4 states. [2018-10-26 20:06:41,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:06:41,133 INFO L93 Difference]: Finished difference Result 214917 states and 252347 transitions. [2018-10-26 20:06:41,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:06:41,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 227 [2018-10-26 20:06:41,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:06:41,319 INFO L225 Difference]: With dead ends: 214917 [2018-10-26 20:06:41,319 INFO L226 Difference]: Without dead ends: 125585 [2018-10-26 20:06:41,398 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:06:41,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125585 states. [2018-10-26 20:06:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125585 to 95888. [2018-10-26 20:06:43,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95888 states. [2018-10-26 20:06:43,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95888 states to 95888 states and 112246 transitions. [2018-10-26 20:06:43,266 INFO L78 Accepts]: Start accepts. Automaton has 95888 states and 112246 transitions. Word has length 227 [2018-10-26 20:06:43,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:06:43,267 INFO L481 AbstractCegarLoop]: Abstraction has 95888 states and 112246 transitions. [2018-10-26 20:06:43,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:06:43,267 INFO L276 IsEmpty]: Start isEmpty. Operand 95888 states and 112246 transitions. [2018-10-26 20:06:43,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-10-26 20:06:43,286 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:06:43,286 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:06:43,287 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:06:43,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:06:43,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1206837492, now seen corresponding path program 1 times [2018-10-26 20:06:43,287 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:06:43,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:06:43,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:43,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:43,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:43,554 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 74 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:06:43,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 20:06:43,555 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 20:06:43,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:43,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:06:43,767 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-26 20:06:43,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 20:06:43,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-26 20:06:43,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 20:06:43,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 20:06:43,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 20:06:43,790 INFO L87 Difference]: Start difference. First operand 95888 states and 112246 transitions. Second operand 6 states. [2018-10-26 20:06:50,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:06:50,187 INFO L93 Difference]: Finished difference Result 288607 states and 338761 transitions. [2018-10-26 20:06:50,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 20:06:50,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2018-10-26 20:06:50,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:06:50,425 INFO L225 Difference]: With dead ends: 288607 [2018-10-26 20:06:50,425 INFO L226 Difference]: Without dead ends: 192721 [2018-10-26 20:06:50,498 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-10-26 20:06:50,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192721 states. [2018-10-26 20:06:52,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192721 to 161447. [2018-10-26 20:06:52,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161447 states. [2018-10-26 20:06:53,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161447 states to 161447 states and 184170 transitions. [2018-10-26 20:06:53,122 INFO L78 Accepts]: Start accepts. Automaton has 161447 states and 184170 transitions. Word has length 235 [2018-10-26 20:06:53,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:06:53,122 INFO L481 AbstractCegarLoop]: Abstraction has 161447 states and 184170 transitions. [2018-10-26 20:06:53,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 20:06:53,123 INFO L276 IsEmpty]: Start isEmpty. Operand 161447 states and 184170 transitions. [2018-10-26 20:06:53,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-10-26 20:06:53,152 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:06:53,152 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:06:53,153 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:06:53,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:06:53,153 INFO L82 PathProgramCache]: Analyzing trace with hash -490854985, now seen corresponding path program 1 times [2018-10-26 20:06:53,153 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:06:53,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:06:53,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:53,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:06:53,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:06:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:06:53,454 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-10-26 20:06:53,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:06:53,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 20:06:53,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 20:06:53,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 20:06:53,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 20:06:53,456 INFO L87 Difference]: Start difference. First operand 161447 states and 184170 transitions. Second operand 3 states. [2018-10-26 20:06:55,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:06:55,310 INFO L93 Difference]: Finished difference Result 442135 states and 503558 transitions. [2018-10-26 20:06:55,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 20:06:55,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 317 [2018-10-26 20:06:55,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:06:55,635 INFO L225 Difference]: With dead ends: 442135 [2018-10-26 20:06:55,635 INFO L226 Difference]: Without dead ends: 280690 [2018-10-26 20:06:55,744 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 20:06:55,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280690 states. [2018-10-26 20:06:59,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280690 to 280688. [2018-10-26 20:06:59,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280688 states. [2018-10-26 20:07:00,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280688 states to 280688 states and 319291 transitions. [2018-10-26 20:07:00,090 INFO L78 Accepts]: Start accepts. Automaton has 280688 states and 319291 transitions. Word has length 317 [2018-10-26 20:07:00,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:07:00,090 INFO L481 AbstractCegarLoop]: Abstraction has 280688 states and 319291 transitions. [2018-10-26 20:07:00,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 20:07:00,090 INFO L276 IsEmpty]: Start isEmpty. Operand 280688 states and 319291 transitions. [2018-10-26 20:07:00,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2018-10-26 20:07:00,121 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:07:00,121 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:07:00,122 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:07:00,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:07:00,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1553165065, now seen corresponding path program 1 times [2018-10-26 20:07:00,122 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:07:00,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:07:00,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:07:00,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:07:00,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:07:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:07:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 243 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-10-26 20:07:02,256 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 20:07:02,257 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 20:07:02,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:07:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:07:02,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:07:02,638 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2018-10-26 20:07:02,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 20:07:02,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-26 20:07:02,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 20:07:02,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 20:07:02,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-26 20:07:02,678 INFO L87 Difference]: Start difference. First operand 280688 states and 319291 transitions. Second operand 5 states. [2018-10-26 20:07:16,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:07:16,422 INFO L93 Difference]: Finished difference Result 1698375 states and 1928215 transitions. [2018-10-26 20:07:16,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 20:07:16,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 379 [2018-10-26 20:07:16,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:07:20,252 INFO L225 Difference]: With dead ends: 1698375 [2018-10-26 20:07:20,252 INFO L226 Difference]: Without dead ends: 1417689 [2018-10-26 20:07:20,612 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 378 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-26 20:07:21,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417689 states. [2018-10-26 20:07:37,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417689 to 955291. [2018-10-26 20:07:37,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 955291 states. [2018-10-26 20:07:39,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955291 states to 955291 states and 1082765 transitions. [2018-10-26 20:07:39,110 INFO L78 Accepts]: Start accepts. Automaton has 955291 states and 1082765 transitions. Word has length 379 [2018-10-26 20:07:39,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:07:39,111 INFO L481 AbstractCegarLoop]: Abstraction has 955291 states and 1082765 transitions. [2018-10-26 20:07:39,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 20:07:39,111 INFO L276 IsEmpty]: Start isEmpty. Operand 955291 states and 1082765 transitions. [2018-10-26 20:07:39,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-10-26 20:07:39,214 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:07:39,215 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 20:07:39,215 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:07:39,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:07:39,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1495467861, now seen corresponding path program 1 times [2018-10-26 20:07:39,216 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:07:39,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:07:39,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:07:39,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:07:39,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:07:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:07:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-26 20:07:48,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:07:48,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 20:07:48,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:07:48,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:07:48,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:07:48,482 INFO L87 Difference]: Start difference. First operand 955291 states and 1082765 transitions. Second operand 4 states. [2018-10-26 20:08:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:08:00,856 INFO L93 Difference]: Finished difference Result 1898960 states and 2151616 transitions. [2018-10-26 20:08:00,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:08:00,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 404 [2018-10-26 20:08:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:08:02,846 INFO L225 Difference]: With dead ends: 1898960 [2018-10-26 20:08:02,846 INFO L226 Difference]: Without dead ends: 943671 [2018-10-26 20:08:03,348 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:08:04,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943671 states. [2018-10-26 20:08:18,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943671 to 943631. [2018-10-26 20:08:18,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943631 states. [2018-10-26 20:08:21,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943631 states to 943631 states and 1048545 transitions. [2018-10-26 20:08:21,054 INFO L78 Accepts]: Start accepts. Automaton has 943631 states and 1048545 transitions. Word has length 404 [2018-10-26 20:08:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:08:21,055 INFO L481 AbstractCegarLoop]: Abstraction has 943631 states and 1048545 transitions. [2018-10-26 20:08:21,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:08:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 943631 states and 1048545 transitions. [2018-10-26 20:08:21,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-10-26 20:08:21,167 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:08:21,168 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:08:21,168 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:08:21,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:08:21,169 INFO L82 PathProgramCache]: Analyzing trace with hash -184490042, now seen corresponding path program 1 times [2018-10-26 20:08:21,169 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:08:21,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:08:21,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:08:21,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:08:21,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:08:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:08:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-10-26 20:08:21,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:08:21,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 20:08:21,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 20:08:21,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 20:08:21,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 20:08:21,578 INFO L87 Difference]: Start difference. First operand 943631 states and 1048545 transitions. Second operand 3 states. [2018-10-26 20:08:38,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:08:38,262 INFO L93 Difference]: Finished difference Result 1850825 states and 2056973 transitions. [2018-10-26 20:08:38,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 20:08:38,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 426 [2018-10-26 20:08:38,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:08:39,540 INFO L225 Difference]: With dead ends: 1850825 [2018-10-26 20:08:39,540 INFO L226 Difference]: Without dead ends: 907196 [2018-10-26 20:08:41,621 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 20:08:42,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907196 states. [2018-10-26 20:08:54,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907196 to 894924. [2018-10-26 20:08:54,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894924 states. [2018-10-26 20:08:55,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894924 states to 894924 states and 974623 transitions. [2018-10-26 20:08:55,594 INFO L78 Accepts]: Start accepts. Automaton has 894924 states and 974623 transitions. Word has length 426 [2018-10-26 20:08:55,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:08:55,595 INFO L481 AbstractCegarLoop]: Abstraction has 894924 states and 974623 transitions. [2018-10-26 20:08:55,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 20:08:55,595 INFO L276 IsEmpty]: Start isEmpty. Operand 894924 states and 974623 transitions. [2018-10-26 20:08:57,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2018-10-26 20:08:57,720 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:08:57,720 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:08:57,720 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:08:57,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:08:57,721 INFO L82 PathProgramCache]: Analyzing trace with hash -246256377, now seen corresponding path program 1 times [2018-10-26 20:08:57,721 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:08:57,721 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:08:57,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:08:57,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:08:57,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:08:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:08:58,072 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2018-10-26 20:08:58,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:08:58,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 20:08:58,073 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 20:08:58,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 20:08:58,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 20:08:58,073 INFO L87 Difference]: Start difference. First operand 894924 states and 974623 transitions. Second operand 5 states. Received shutdown request... [2018-10-26 20:09:17,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 20:09:17,346 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 20:09:17,352 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 20:09:17,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:09:17 BoogieIcfgContainer [2018-10-26 20:09:17,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 20:09:17,353 INFO L168 Benchmark]: Toolchain (without parser) took 201868.79 ms. Allocated memory was 1.5 GB in the beginning and 6.3 GB in the end (delta: 4.8 GB). Free memory was 1.4 GB in the beginning and 4.0 GB in the end (delta: -2.6 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-10-26 20:09:17,355 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 20:09:17,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1176.23 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-26 20:09:17,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 352.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -885.5 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2018-10-26 20:09:17,358 INFO L168 Benchmark]: Boogie Preprocessor took 169.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-10-26 20:09:17,358 INFO L168 Benchmark]: RCFGBuilder took 5937.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 249.4 MB). Peak memory consumption was 249.4 MB. Max. memory is 7.1 GB. [2018-10-26 20:09:17,359 INFO L168 Benchmark]: TraceAbstraction took 194225.36 ms. Allocated memory was 2.3 GB in the beginning and 6.3 GB in the end (delta: 4.0 GB). Free memory was 2.0 GB in the beginning and 4.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-10-26 20:09:17,364 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1176.23 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 352.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -885.5 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5937.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 249.4 MB). Peak memory consumption was 249.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194225.36 ms. Allocated memory was 2.3 GB in the beginning and 6.3 GB in the end (delta: 4.0 GB). Free memory was 2.0 GB in the beginning and 4.0 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1521]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1521). Cancelled while BasicCegarLoop was constructing difference of abstraction (894924states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (1908546 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 303 locations, 1 error locations. TIMEOUT Result, 194.1s OverallTime, 15 OverallIterations, 8 TraceHistogramMax, 113.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4186 SDtfs, 15356 SDslu, 4331 SDs, 0 SdLazy, 19571 SolverSat, 5089 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 915 GetRequests, 856 SyntacticMatches, 9 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=955291occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 61.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 551633 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 4810 NumberOfCodeBlocks, 4810 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4792 ConstructedInterpolants, 0 QuantifiedInterpolants, 2684068 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1535 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 3202/3215 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown