java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-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/Problem15_label02_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:18:40,316 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:18:40,318 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:18:40,338 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:18:40,338 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:18:40,339 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:18:40,341 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:18:40,344 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:18:40,348 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:18:40,349 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:18:40,356 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:18:40,356 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:18:40,357 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:18:40,361 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:18:40,362 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:18:40,363 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:18:40,368 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:18:40,372 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:18:40,374 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:18:40,379 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:18:40,381 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:18:40,383 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:18:40,386 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 19:18:40,387 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 19:18:40,387 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 19:18:40,388 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 19:18:40,389 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 19:18:40,390 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 19:18:40,391 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 19:18:40,397 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 19:18:40,397 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 19:18:40,398 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 19:18:40,404 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 19:18:40,433 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:18:40,433 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:18:40,436 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:18:40,436 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:18:40,437 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:18:40,437 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:18:40,437 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:18:40,438 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:18:40,438 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:18:40,438 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:18:40,438 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:18:40,438 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:18:40,440 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:18:40,440 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:18:40,440 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:18:40,440 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:18:40,441 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:18:40,441 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:18:40,441 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:18:40,441 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:18:40,441 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:18:40,442 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:18:40,442 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:18:40,442 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:18:40,442 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:18:40,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:18:40,443 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:18:40,443 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:18:40,498 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:18:40,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:18:40,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:18:40,521 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:18:40,522 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:18:40,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label02_false-unreach-call.c [2018-11-06 19:18:40,584 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/720e309b1/9249ec268b714fd283ef4ddf0abcbe16/FLAGf7c378c20 [2018-11-06 19:18:41,260 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:18:41,261 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label02_false-unreach-call.c [2018-11-06 19:18:41,280 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/720e309b1/9249ec268b714fd283ef4ddf0abcbe16/FLAGf7c378c20 [2018-11-06 19:18:41,298 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/720e309b1/9249ec268b714fd283ef4ddf0abcbe16 [2018-11-06 19:18:41,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:18:41,311 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:18:41,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:18:41,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:18:41,316 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:18:41,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:18:41" (1/1) ... [2018-11-06 19:18:41,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9260898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:41, skipping insertion in model container [2018-11-06 19:18:41,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:18:41" (1/1) ... [2018-11-06 19:18:41,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:18:41,436 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:18:42,285 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:18:42,290 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:18:42,586 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:18:42,609 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:18:42,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42 WrapperNode [2018-11-06 19:18:42,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:18:42,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:18:42,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:18:42,611 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:18:42,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42" (1/1) ... [2018-11-06 19:18:42,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42" (1/1) ... [2018-11-06 19:18:43,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:18:43,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:18:43,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:18:43,005 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:18:43,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42" (1/1) ... [2018-11-06 19:18:43,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42" (1/1) ... [2018-11-06 19:18:43,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42" (1/1) ... [2018-11-06 19:18:43,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42" (1/1) ... [2018-11-06 19:18:43,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42" (1/1) ... [2018-11-06 19:18:43,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42" (1/1) ... [2018-11-06 19:18:43,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42" (1/1) ... [2018-11-06 19:18:43,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:18:43,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:18:43,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:18:43,265 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:18:43,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:18:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:18:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:18:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:18:49,704 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:18:49,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:18:49 BoogieIcfgContainer [2018-11-06 19:18:49,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:18:49,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:18:49,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:18:49,709 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:18:49,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:18:41" (1/3) ... [2018-11-06 19:18:49,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47195907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:18:49, skipping insertion in model container [2018-11-06 19:18:49,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:18:42" (2/3) ... [2018-11-06 19:18:49,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47195907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:18:49, skipping insertion in model container [2018-11-06 19:18:49,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:18:49" (3/3) ... [2018-11-06 19:18:49,713 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label02_false-unreach-call.c [2018-11-06 19:18:49,723 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:18:49,731 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:18:49,749 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:18:49,788 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:18:49,789 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:18:49,789 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:18:49,790 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:18:49,790 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:18:49,790 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:18:49,790 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:18:49,790 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:18:49,790 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:18:49,818 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2018-11-06 19:18:49,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-06 19:18:49,832 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:18:49,833 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] [2018-11-06 19:18:49,836 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:18:49,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:18:49,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1827210562, now seen corresponding path program 1 times [2018-11-06 19:18:49,844 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:18:49,845 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:18:49,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:18:49,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:18:49,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:18:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:18:50,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:18:50,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:18:50,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:18:50,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:18:50,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:18:50,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:18:50,259 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 4 states. [2018-11-06 19:18:57,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:18:57,385 INFO L93 Difference]: Finished difference Result 1518 states and 2792 transitions. [2018-11-06 19:18:57,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:18:57,387 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-06 19:18:57,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:18:57,414 INFO L225 Difference]: With dead ends: 1518 [2018-11-06 19:18:57,414 INFO L226 Difference]: Without dead ends: 1086 [2018-11-06 19:18:57,420 INFO L604 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 [2018-11-06 19:18:57,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2018-11-06 19:18:57,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1063. [2018-11-06 19:18:57,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-11-06 19:18:57,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1813 transitions. [2018-11-06 19:18:57,530 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1813 transitions. Word has length 29 [2018-11-06 19:18:57,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:18:57,531 INFO L480 AbstractCegarLoop]: Abstraction has 1063 states and 1813 transitions. [2018-11-06 19:18:57,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:18:57,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1813 transitions. [2018-11-06 19:18:57,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-11-06 19:18:57,536 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:18:57,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:18:57,538 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:18:57,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:18:57,539 INFO L82 PathProgramCache]: Analyzing trace with hash -334858861, now seen corresponding path program 1 times [2018-11-06 19:18:57,539 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:18:57,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:18:57,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:18:57,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:18:57,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:18:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:18:57,853 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:18:57,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:18:57,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:18:57,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:18:57,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:18:57,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:18:57,856 INFO L87 Difference]: Start difference. First operand 1063 states and 1813 transitions. Second operand 4 states. [2018-11-06 19:19:03,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:19:03,237 INFO L93 Difference]: Finished difference Result 4005 states and 6946 transitions. [2018-11-06 19:19:03,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:19:03,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2018-11-06 19:19:03,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:19:03,254 INFO L225 Difference]: With dead ends: 4005 [2018-11-06 19:19:03,255 INFO L226 Difference]: Without dead ends: 2944 [2018-11-06 19:19:03,260 INFO L604 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 [2018-11-06 19:19:03,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2018-11-06 19:19:03,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1963. [2018-11-06 19:19:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1963 states. [2018-11-06 19:19:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2983 transitions. [2018-11-06 19:19:03,319 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2983 transitions. Word has length 98 [2018-11-06 19:19:03,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:19:03,321 INFO L480 AbstractCegarLoop]: Abstraction has 1963 states and 2983 transitions. [2018-11-06 19:19:03,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:19:03,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2983 transitions. [2018-11-06 19:19:03,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-11-06 19:19:03,330 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:19:03,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:19:03,331 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:19:03,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:19:03,331 INFO L82 PathProgramCache]: Analyzing trace with hash -2086905433, now seen corresponding path program 1 times [2018-11-06 19:19:03,331 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:19:03,332 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:19:03,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:19:03,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:19:03,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:19:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:19:03,538 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:19:03,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:19:03,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:19:03,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:19:03,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:19:03,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:19:03,540 INFO L87 Difference]: Start difference. First operand 1963 states and 2983 transitions. Second operand 4 states. [2018-11-06 19:19:09,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:19:09,595 INFO L93 Difference]: Finished difference Result 7528 states and 11550 transitions. [2018-11-06 19:19:09,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:19:09,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2018-11-06 19:19:09,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:19:09,626 INFO L225 Difference]: With dead ends: 7528 [2018-11-06 19:19:09,626 INFO L226 Difference]: Without dead ends: 5567 [2018-11-06 19:19:09,630 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:19:09,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5567 states. [2018-11-06 19:19:09,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5567 to 5565. [2018-11-06 19:19:09,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5565 states. [2018-11-06 19:19:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5565 states to 5565 states and 7621 transitions. [2018-11-06 19:19:09,731 INFO L78 Accepts]: Start accepts. Automaton has 5565 states and 7621 transitions. Word has length 106 [2018-11-06 19:19:09,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:19:09,732 INFO L480 AbstractCegarLoop]: Abstraction has 5565 states and 7621 transitions. [2018-11-06 19:19:09,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:19:09,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5565 states and 7621 transitions. [2018-11-06 19:19:09,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-11-06 19:19:09,738 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:19:09,739 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 19:19:09,739 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:19:09,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:19:09,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1552663638, now seen corresponding path program 1 times [2018-11-06 19:19:09,741 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:19:09,741 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:19:09,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:19:09,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:19:09,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:19:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:19:10,116 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-06 19:19:10,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:19:10,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:19:10,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:19:10,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:19:10,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:19:10,120 INFO L87 Difference]: Start difference. First operand 5565 states and 7621 transitions. Second operand 4 states. [2018-11-06 19:19:13,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:19:13,004 INFO L93 Difference]: Finished difference Result 11127 states and 15241 transitions. [2018-11-06 19:19:13,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:19:13,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 191 [2018-11-06 19:19:13,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:19:13,028 INFO L225 Difference]: With dead ends: 11127 [2018-11-06 19:19:13,028 INFO L226 Difference]: Without dead ends: 5564 [2018-11-06 19:19:13,036 INFO L604 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 [2018-11-06 19:19:13,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5564 states. [2018-11-06 19:19:13,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5564 to 5562. [2018-11-06 19:19:13,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5562 states. [2018-11-06 19:19:13,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5562 states to 5562 states and 6703 transitions. [2018-11-06 19:19:13,127 INFO L78 Accepts]: Start accepts. Automaton has 5562 states and 6703 transitions. Word has length 191 [2018-11-06 19:19:13,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:19:13,128 INFO L480 AbstractCegarLoop]: Abstraction has 5562 states and 6703 transitions. [2018-11-06 19:19:13,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:19:13,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5562 states and 6703 transitions. [2018-11-06 19:19:13,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-11-06 19:19:13,136 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:19:13,137 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:19:13,137 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:19:13,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:19:13,137 INFO L82 PathProgramCache]: Analyzing trace with hash -2046084226, now seen corresponding path program 1 times [2018-11-06 19:19:13,137 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:19:13,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:19:13,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:19:13,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:19:13,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:19:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:19:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-06 19:19:14,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:19:14,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:19:14,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:19:14,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:19:14,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:19:14,089 INFO L87 Difference]: Start difference. First operand 5562 states and 6703 transitions. Second operand 5 states. [2018-11-06 19:19:17,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:19:17,806 INFO L93 Difference]: Finished difference Result 11727 states and 14049 transitions. [2018-11-06 19:19:17,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:19:17,807 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 343 [2018-11-06 19:19:17,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:19:17,828 INFO L225 Difference]: With dead ends: 11727 [2018-11-06 19:19:17,829 INFO L226 Difference]: Without dead ends: 6167 [2018-11-06 19:19:17,837 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:19:17,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6167 states. [2018-11-06 19:19:17,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6167 to 5863. [2018-11-06 19:19:17,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5863 states. [2018-11-06 19:19:17,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 6987 transitions. [2018-11-06 19:19:17,927 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 6987 transitions. Word has length 343 [2018-11-06 19:19:17,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:19:17,928 INFO L480 AbstractCegarLoop]: Abstraction has 5863 states and 6987 transitions. [2018-11-06 19:19:17,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:19:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 6987 transitions. [2018-11-06 19:19:17,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2018-11-06 19:19:17,935 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:19:17,936 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:19:17,936 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:19:17,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:19:17,937 INFO L82 PathProgramCache]: Analyzing trace with hash -494663710, now seen corresponding path program 1 times [2018-11-06 19:19:17,937 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:19:17,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:19:17,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:19:17,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:19:17,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:19:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:19:18,577 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-06 19:19:18,834 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 3 [2018-11-06 19:19:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 27 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:19:19,258 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:19:19,258 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:19:19,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:19:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:19:19,409 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:19:22,357 WARN L179 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 467 DAG size of output: 26 [2018-11-06 19:19:44,262 WARN L179 SmtUtils]: Spent 21.71 s on a formula simplification. DAG size of input: 288 DAG size of output: 167 [2018-11-06 19:19:45,470 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 53 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:19:45,490 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:19:45,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2018-11-06 19:19:45,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-06 19:19:45,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-06 19:19:45,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2018-11-06 19:19:45,493 INFO L87 Difference]: Start difference. First operand 5863 states and 6987 transitions. Second operand 9 states. [2018-11-06 19:22:05,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:22:05,937 INFO L93 Difference]: Finished difference Result 19045 states and 22746 transitions. [2018-11-06 19:22:05,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-06 19:22:05,938 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 378 [2018-11-06 19:22:05,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:22:05,987 INFO L225 Difference]: With dead ends: 19045 [2018-11-06 19:22:05,988 INFO L226 Difference]: Without dead ends: 13184 [2018-11-06 19:22:05,996 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2018-11-06 19:22:06,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13184 states. [2018-11-06 19:22:06,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13184 to 8901. [2018-11-06 19:22:06,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8901 states. [2018-11-06 19:22:06,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8901 states to 8901 states and 10632 transitions. [2018-11-06 19:22:06,201 INFO L78 Accepts]: Start accepts. Automaton has 8901 states and 10632 transitions. Word has length 378 [2018-11-06 19:22:06,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:22:06,202 INFO L480 AbstractCegarLoop]: Abstraction has 8901 states and 10632 transitions. [2018-11-06 19:22:06,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-06 19:22:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 8901 states and 10632 transitions. [2018-11-06 19:22:06,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2018-11-06 19:22:06,215 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:22:06,215 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:22:06,216 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:22:06,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:22:06,216 INFO L82 PathProgramCache]: Analyzing trace with hash -90900, now seen corresponding path program 1 times [2018-11-06 19:22:06,217 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:22:06,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:22:06,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:22:06,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:22:06,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:22:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:22:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:22:06,949 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:22:06,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:22:06,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:22:06,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:22:06,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:22:06,951 INFO L87 Difference]: Start difference. First operand 8901 states and 10632 transitions. Second operand 4 states. [2018-11-06 19:22:10,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:22:10,898 INFO L93 Difference]: Finished difference Result 23206 states and 28598 transitions. [2018-11-06 19:22:10,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:22:10,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 432 [2018-11-06 19:22:10,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:22:10,929 INFO L225 Difference]: With dead ends: 23206 [2018-11-06 19:22:10,929 INFO L226 Difference]: Without dead ends: 14307 [2018-11-06 19:22:10,940 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:22:10,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14307 states. [2018-11-06 19:22:11,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14307 to 14302. [2018-11-06 19:22:11,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14302 states. [2018-11-06 19:22:11,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14302 states to 14302 states and 17085 transitions. [2018-11-06 19:22:11,131 INFO L78 Accepts]: Start accepts. Automaton has 14302 states and 17085 transitions. Word has length 432 [2018-11-06 19:22:11,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:22:11,131 INFO L480 AbstractCegarLoop]: Abstraction has 14302 states and 17085 transitions. [2018-11-06 19:22:11,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:22:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 14302 states and 17085 transitions. [2018-11-06 19:22:11,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2018-11-06 19:22:11,142 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:22:11,142 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:22:11,142 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:22:11,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:22:11,143 INFO L82 PathProgramCache]: Analyzing trace with hash 868157937, now seen corresponding path program 1 times [2018-11-06 19:22:11,143 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:22:11,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:22:11,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:22:11,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:22:11,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:22:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:22:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 271 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-06 19:22:12,409 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:22:12,409 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:22:12,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:22:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:22:12,541 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:22:13,074 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 236 proven. 39 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-06 19:22:13,095 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:22:13,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2018-11-06 19:22:13,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-06 19:22:13,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-06 19:22:13,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-06 19:22:13,097 INFO L87 Difference]: Start difference. First operand 14302 states and 17085 transitions. Second operand 9 states. [2018-11-06 19:22:23,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:22:23,038 INFO L93 Difference]: Finished difference Result 37013 states and 43170 transitions. [2018-11-06 19:22:23,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-06 19:22:23,044 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 435 [2018-11-06 19:22:23,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:22:23,067 INFO L225 Difference]: With dead ends: 37013 [2018-11-06 19:22:23,067 INFO L226 Difference]: Without dead ends: 12095 [2018-11-06 19:22:23,084 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 432 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2018-11-06 19:22:23,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12095 states. [2018-11-06 19:22:23,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12095 to 10294. [2018-11-06 19:22:23,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10294 states. [2018-11-06 19:22:23,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10294 states to 10294 states and 11043 transitions. [2018-11-06 19:22:23,224 INFO L78 Accepts]: Start accepts. Automaton has 10294 states and 11043 transitions. Word has length 435 [2018-11-06 19:22:23,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:22:23,224 INFO L480 AbstractCegarLoop]: Abstraction has 10294 states and 11043 transitions. [2018-11-06 19:22:23,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-06 19:22:23,225 INFO L276 IsEmpty]: Start isEmpty. Operand 10294 states and 11043 transitions. [2018-11-06 19:22:23,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2018-11-06 19:22:23,234 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:22:23,235 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:22:23,235 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:22:23,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:22:23,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1888437077, now seen corresponding path program 1 times [2018-11-06 19:22:23,236 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:22:23,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:22:23,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:22:23,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:22:23,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:22:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:22:23,818 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-06 19:22:24,323 WARN L179 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 18 [2018-11-06 19:22:24,849 WARN L179 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 18 [2018-11-06 19:22:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 208 proven. 107 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-06 19:22:25,618 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:22:25,618 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:22:25,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:22:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:22:25,755 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:22:26,225 WARN L179 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2018-11-06 19:22:27,086 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 208 proven. 107 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-06 19:22:27,107 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:22:27,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2018-11-06 19:22:27,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-06 19:22:27,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-06 19:22:27,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-06 19:22:27,109 INFO L87 Difference]: Start difference. First operand 10294 states and 11043 transitions. Second operand 12 states. [2018-11-06 19:22:37,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:22:37,103 INFO L93 Difference]: Finished difference Result 25719 states and 27602 transitions. [2018-11-06 19:22:37,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 19:22:37,104 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 486 [2018-11-06 19:22:37,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:22:37,130 INFO L225 Difference]: With dead ends: 25719 [2018-11-06 19:22:37,130 INFO L226 Difference]: Without dead ends: 15727 [2018-11-06 19:22:37,146 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 484 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-06 19:22:37,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15727 states. [2018-11-06 19:22:37,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15727 to 14505. [2018-11-06 19:22:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14505 states. [2018-11-06 19:22:37,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14505 states to 14505 states and 15529 transitions. [2018-11-06 19:22:37,342 INFO L78 Accepts]: Start accepts. Automaton has 14505 states and 15529 transitions. Word has length 486 [2018-11-06 19:22:37,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:22:37,343 INFO L480 AbstractCegarLoop]: Abstraction has 14505 states and 15529 transitions. [2018-11-06 19:22:37,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-06 19:22:37,343 INFO L276 IsEmpty]: Start isEmpty. Operand 14505 states and 15529 transitions. [2018-11-06 19:22:37,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2018-11-06 19:22:37,349 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:22:37,350 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:22:37,350 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:22:37,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:22:37,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1763547287, now seen corresponding path program 1 times [2018-11-06 19:22:37,351 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:22:37,351 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:22:37,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:22:37,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:22:37,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:22:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:22:38,100 WARN L179 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 5 [2018-11-06 19:22:39,380 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:22:39,381 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:22:39,381 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:22:39,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:22:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:22:39,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:22:41,015 WARN L179 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 134 DAG size of output: 22 [2018-11-06 19:22:42,251 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 80 proven. 262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:22:42,271 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:22:42,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2018-11-06 19:22:42,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-06 19:22:42,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-06 19:22:42,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-06 19:22:42,274 INFO L87 Difference]: Start difference. First operand 14505 states and 15529 transitions. Second operand 10 states. [2018-11-06 19:22:53,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:22:53,318 INFO L93 Difference]: Finished difference Result 37795 states and 40510 transitions. [2018-11-06 19:22:53,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-06 19:22:53,319 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 498 [2018-11-06 19:22:53,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:22:53,347 INFO L225 Difference]: With dead ends: 37795 [2018-11-06 19:22:53,347 INFO L226 Difference]: Without dead ends: 22992 [2018-11-06 19:22:53,359 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 494 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-06 19:22:53,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22992 states. [2018-11-06 19:22:53,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22992 to 19318. [2018-11-06 19:22:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19318 states. [2018-11-06 19:22:53,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19318 states to 19318 states and 20721 transitions. [2018-11-06 19:22:53,617 INFO L78 Accepts]: Start accepts. Automaton has 19318 states and 20721 transitions. Word has length 498 [2018-11-06 19:22:53,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:22:53,618 INFO L480 AbstractCegarLoop]: Abstraction has 19318 states and 20721 transitions. [2018-11-06 19:22:53,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-06 19:22:53,619 INFO L276 IsEmpty]: Start isEmpty. Operand 19318 states and 20721 transitions. [2018-11-06 19:22:53,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2018-11-06 19:22:53,627 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:22:53,628 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:22:53,628 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:22:53,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:22:53,631 INFO L82 PathProgramCache]: Analyzing trace with hash 2107227376, now seen corresponding path program 1 times [2018-11-06 19:22:53,631 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:22:53,631 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:22:53,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:22:53,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:22:53,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:22:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:22:54,155 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-11-06 19:22:54,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:22:54,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:22:54,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:22:54,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:22:54,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:22:54,157 INFO L87 Difference]: Start difference. First operand 19318 states and 20721 transitions. Second operand 3 states. Received shutdown request... [2018-11-06 19:22:55,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:22:55,009 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 19:22:55,016 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 19:22:55,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:22:55 BoogieIcfgContainer [2018-11-06 19:22:55,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 19:22:55,017 INFO L168 Benchmark]: Toolchain (without parser) took 253707.56 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -855.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-06 19:22:55,019 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 19:22:55,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1298.33 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: 108.5 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. [2018-11-06 19:22:55,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 393.89 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 733.0 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -859.8 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2018-11-06 19:22:55,021 INFO L168 Benchmark]: Boogie Preprocessor took 259.30 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. [2018-11-06 19:22:55,022 INFO L168 Benchmark]: RCFGBuilder took 6440.21 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 297.4 MB). Peak memory consumption was 297.4 MB. Max. memory is 7.1 GB. [2018-11-06 19:22:55,023 INFO L168 Benchmark]: TraceAbstraction took 245310.94 ms. Allocated memory was 2.2 GB in the beginning and 3.4 GB in the end (delta: 1.2 GB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -444.7 MB). Peak memory consumption was 753.3 MB. Max. memory is 7.1 GB. [2018-11-06 19:22:55,029 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1298.33 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: 108.5 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 393.89 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 733.0 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -859.8 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 259.30 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6440.21 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 297.4 MB). Peak memory consumption was 297.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245310.94 ms. Allocated memory was 2.2 GB in the beginning and 3.4 GB in the end (delta: 1.2 GB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -444.7 MB). Peak memory consumption was 753.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 91). Cancelled while BasicCegarLoop was constructing difference of abstraction (19318states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (71 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 425 locations, 1 error locations. TIMEOUT Result, 245.2s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 201.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2823 SDtfs, 15262 SDslu, 2108 SDs, 0 SdLazy, 35627 SolverSat, 4882 SolverUnsat, 48 SolverUnknown, 0 SolverNotchecked, 190.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1862 GetRequests, 1796 SyntacticMatches, 13 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 31.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19318occurred in iteration=10, 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: 1.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 12297 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 37.4s InterpolantComputationTime, 5393 NumberOfCodeBlocks, 5393 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5378 ConstructedInterpolants, 387 QuantifiedInterpolants, 24604406 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2185 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 2289/3306 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown