java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label55_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:47:30,379 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:47:30,382 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:47:30,399 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:47:30,400 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:47:30,401 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:47:30,404 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:47:30,406 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:47:30,408 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:47:30,409 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:47:30,412 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:47:30,412 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:47:30,413 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:47:30,414 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:47:30,418 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:47:30,424 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:47:30,425 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:47:30,429 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:47:30,434 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:47:30,438 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:47:30,439 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:47:30,441 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:47:30,443 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 14:47:30,450 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 [2018-10-24 14:47:30,465 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:47:30,465 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:47:30,466 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:47:30,466 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:47:30,467 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:47:30,467 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:47:30,467 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:47:30,467 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:47:30,468 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:47:30,468 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:47:30,468 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:47:30,468 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:47:30,468 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:47:30,468 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:47:30,469 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:47:30,469 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:47:30,469 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:47:30,469 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:47:30,469 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:47:30,470 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:47:30,470 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:47:30,470 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:47:30,470 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:47:30,470 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:47:30,470 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:47:30,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:47:30,471 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:47:30,471 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:47:30,518 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:47:30,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:47:30,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:47:30,542 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:47:30,543 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:47:30,544 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label55_false-unreach-call.c [2018-10-24 14:47:30,603 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4d6d25023/5aa982aa18d747428d3540794319c140/FLAGda96f281b [2018-10-24 14:47:31,504 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:47:31,505 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label55_false-unreach-call.c [2018-10-24 14:47:31,559 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4d6d25023/5aa982aa18d747428d3540794319c140/FLAGda96f281b [2018-10-24 14:47:31,575 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4d6d25023/5aa982aa18d747428d3540794319c140 [2018-10-24 14:47:31,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:47:31,589 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:47:31,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:47:31,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:47:31,594 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:47:31,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:31" (1/1) ... [2018-10-24 14:47:31,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46764b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:31, skipping insertion in model container [2018-10-24 14:47:31,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:31" (1/1) ... [2018-10-24 14:47:31,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:47:31,843 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:47:33,748 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:47:33,755 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:47:34,784 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:47:34,844 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:47:34,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34 WrapperNode [2018-10-24 14:47:34,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:47:34,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:47:34,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:47:34,846 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:47:34,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34" (1/1) ... [2018-10-24 14:47:34,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34" (1/1) ... [2018-10-24 14:47:36,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:47:36,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:47:36,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:47:36,029 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:47:36,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34" (1/1) ... [2018-10-24 14:47:36,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34" (1/1) ... [2018-10-24 14:47:36,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34" (1/1) ... [2018-10-24 14:47:36,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34" (1/1) ... [2018-10-24 14:47:36,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34" (1/1) ... [2018-10-24 14:47:36,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34" (1/1) ... [2018-10-24 14:47:36,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34" (1/1) ... [2018-10-24 14:47:36,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:47:36,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:47:36,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:47:36,917 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:47:36,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34" (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 [2018-10-24 14:47:36,986 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:47:36,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:47:36,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:47:54,994 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:47:54,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:47:54 BoogieIcfgContainer [2018-10-24 14:47:54,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:47:54,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:47:54,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:47:55,002 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:47:55,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:47:31" (1/3) ... [2018-10-24 14:47:55,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3b2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:47:55, skipping insertion in model container [2018-10-24 14:47:55,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:34" (2/3) ... [2018-10-24 14:47:55,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3b2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:47:55, skipping insertion in model container [2018-10-24 14:47:55,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:47:54" (3/3) ... [2018-10-24 14:47:55,008 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label55_false-unreach-call.c [2018-10-24 14:47:55,018 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:47:55,033 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:47:55,051 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:47:55,116 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:47:55,117 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:47:55,117 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:47:55,117 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:47:55,117 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:47:55,117 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:47:55,118 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:47:55,118 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:47:55,118 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:47:55,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 14:47:55,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-24 14:47:55,176 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:55,177 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:47:55,179 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:55,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:55,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1961166346, now seen corresponding path program 1 times [2018-10-24 14:47:55,188 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:55,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:55,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:55,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:55,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:55,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:47:55,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:47:55,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:47:55,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:47:55,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:47:55,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:47:55,592 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 14:48:22,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:22,142 INFO L93 Difference]: Finished difference Result 6322 states and 12078 transitions. [2018-10-24 14:48:22,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:48:22,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-10-24 14:48:22,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:22,205 INFO L225 Difference]: With dead ends: 6322 [2018-10-24 14:48:22,205 INFO L226 Difference]: Without dead ends: 4566 [2018-10-24 14:48:22,217 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 [2018-10-24 14:48:22,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2018-10-24 14:48:22,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 4562. [2018-10-24 14:48:22,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4562 states. [2018-10-24 14:48:22,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 7763 transitions. [2018-10-24 14:48:22,539 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 7763 transitions. Word has length 15 [2018-10-24 14:48:22,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:22,539 INFO L481 AbstractCegarLoop]: Abstraction has 4562 states and 7763 transitions. [2018-10-24 14:48:22,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:48:22,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 7763 transitions. [2018-10-24 14:48:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-24 14:48:22,543 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:22,544 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:48:22,544 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:22,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:22,545 INFO L82 PathProgramCache]: Analyzing trace with hash 2034846289, now seen corresponding path program 1 times [2018-10-24 14:48:22,545 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:22,545 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:22,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:22,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:22,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:22,930 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:48:22,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:48:22,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:48:22,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:48:22,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:48:22,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:22,934 INFO L87 Difference]: Start difference. First operand 4562 states and 7763 transitions. Second operand 4 states. [2018-10-24 14:48:54,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:54,758 INFO L93 Difference]: Finished difference Result 17536 states and 30099 transitions. [2018-10-24 14:48:54,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:48:54,759 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2018-10-24 14:48:54,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:54,819 INFO L225 Difference]: With dead ends: 17536 [2018-10-24 14:48:54,819 INFO L226 Difference]: Without dead ends: 12976 [2018-10-24 14:48:54,828 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 [2018-10-24 14:48:54,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12976 states. [2018-10-24 14:48:55,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12976 to 8660. [2018-10-24 14:48:55,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8660 states. [2018-10-24 14:48:55,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8660 states to 8660 states and 14380 transitions. [2018-10-24 14:48:55,044 INFO L78 Accepts]: Start accepts. Automaton has 8660 states and 14380 transitions. Word has length 85 [2018-10-24 14:48:55,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:55,044 INFO L481 AbstractCegarLoop]: Abstraction has 8660 states and 14380 transitions. [2018-10-24 14:48:55,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:48:55,045 INFO L276 IsEmpty]: Start isEmpty. Operand 8660 states and 14380 transitions. [2018-10-24 14:48:55,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-24 14:48:55,048 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:55,049 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:48:55,049 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:55,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:55,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1538210270, now seen corresponding path program 1 times [2018-10-24 14:48:55,050 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:55,050 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:55,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:55,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:55,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:55,385 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:48:55,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:48:55,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:48:55,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:48:55,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:48:55,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:55,387 INFO L87 Difference]: Start difference. First operand 8660 states and 14380 transitions. Second operand 4 states. [2018-10-24 14:49:15,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:15,407 INFO L93 Difference]: Finished difference Result 33813 states and 56473 transitions. [2018-10-24 14:49:15,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:49:15,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2018-10-24 14:49:15,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:15,480 INFO L225 Difference]: With dead ends: 33813 [2018-10-24 14:49:15,480 INFO L226 Difference]: Without dead ends: 25155 [2018-10-24 14:49:15,493 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 [2018-10-24 14:49:15,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25155 states. [2018-10-24 14:49:15,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25155 to 16865. [2018-10-24 14:49:15,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16865 states. [2018-10-24 14:49:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16865 states to 16865 states and 24314 transitions. [2018-10-24 14:49:15,854 INFO L78 Accepts]: Start accepts. Automaton has 16865 states and 24314 transitions. Word has length 107 [2018-10-24 14:49:15,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:15,856 INFO L481 AbstractCegarLoop]: Abstraction has 16865 states and 24314 transitions. [2018-10-24 14:49:15,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:49:15,856 INFO L276 IsEmpty]: Start isEmpty. Operand 16865 states and 24314 transitions. [2018-10-24 14:49:15,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-24 14:49:15,861 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:15,864 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:49:15,865 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:15,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:15,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1362622900, now seen corresponding path program 1 times [2018-10-24 14:49:15,865 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:15,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:15,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:15,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:15,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:16,196 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:49:16,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:49:16,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:49:16,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:49:16,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:49:16,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:49:16,198 INFO L87 Difference]: Start difference. First operand 16865 states and 24314 transitions. Second operand 4 states. [2018-10-24 14:49:39,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:39,613 INFO L93 Difference]: Finished difference Result 65426 states and 94868 transitions. [2018-10-24 14:49:39,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:49:39,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2018-10-24 14:49:39,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:39,703 INFO L225 Difference]: With dead ends: 65426 [2018-10-24 14:49:39,704 INFO L226 Difference]: Without dead ends: 48563 [2018-10-24 14:49:39,729 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 [2018-10-24 14:49:39,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48563 states. [2018-10-24 14:49:40,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48563 to 48550. [2018-10-24 14:49:40,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48550 states. [2018-10-24 14:49:40,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48550 states to 48550 states and 63472 transitions. [2018-10-24 14:49:40,371 INFO L78 Accepts]: Start accepts. Automaton has 48550 states and 63472 transitions. Word has length 116 [2018-10-24 14:49:40,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:40,371 INFO L481 AbstractCegarLoop]: Abstraction has 48550 states and 63472 transitions. [2018-10-24 14:49:40,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:49:40,372 INFO L276 IsEmpty]: Start isEmpty. Operand 48550 states and 63472 transitions. [2018-10-24 14:49:40,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-10-24 14:49:40,377 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:40,377 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:49:40,381 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:40,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:40,382 INFO L82 PathProgramCache]: Analyzing trace with hash 571693272, now seen corresponding path program 1 times [2018-10-24 14:49:40,382 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:40,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:40,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:40,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:40,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:40,751 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-24 14:49:40,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:49:40,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:49:40,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:49:40,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:49:40,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:49:40,753 INFO L87 Difference]: Start difference. First operand 48550 states and 63472 transitions. Second operand 4 states. [2018-10-24 14:49:56,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:56,189 INFO L93 Difference]: Finished difference Result 112127 states and 144774 transitions. [2018-10-24 14:49:56,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:49:56,189 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 178 [2018-10-24 14:49:56,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:56,275 INFO L225 Difference]: With dead ends: 112127 [2018-10-24 14:49:56,275 INFO L226 Difference]: Without dead ends: 63579 [2018-10-24 14:49:56,330 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:49:56,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63579 states. [2018-10-24 14:49:57,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63579 to 63570. [2018-10-24 14:49:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63570 states. [2018-10-24 14:49:57,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63570 states to 63570 states and 77358 transitions. [2018-10-24 14:49:57,103 INFO L78 Accepts]: Start accepts. Automaton has 63570 states and 77358 transitions. Word has length 178 [2018-10-24 14:49:57,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:57,104 INFO L481 AbstractCegarLoop]: Abstraction has 63570 states and 77358 transitions. [2018-10-24 14:49:57,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:49:57,104 INFO L276 IsEmpty]: Start isEmpty. Operand 63570 states and 77358 transitions. [2018-10-24 14:49:57,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2018-10-24 14:49:57,124 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:57,125 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:49:57,126 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:57,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:57,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1273459280, now seen corresponding path program 1 times [2018-10-24 14:49:57,128 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:57,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:57,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:57,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:57,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:59,238 WARN L179 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 26 [2018-10-24 14:50:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 14:50:00,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:50:00,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 14:50:00,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:50:00,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:50:00,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:50:00,569 INFO L87 Difference]: Start difference. First operand 63570 states and 77358 transitions. Second operand 8 states. [2018-10-24 14:50:05,617 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-24 14:50:30,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:50:30,064 INFO L93 Difference]: Finished difference Result 174483 states and 212363 transitions. [2018-10-24 14:50:30,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-24 14:50:30,066 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 751 [2018-10-24 14:50:30,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:50:30,217 INFO L225 Difference]: With dead ends: 174483 [2018-10-24 14:50:30,217 INFO L226 Difference]: Without dead ends: 110915 [2018-10-24 14:50:30,275 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2018-10-24 14:50:30,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110915 states. [2018-10-24 14:50:31,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110915 to 64936. [2018-10-24 14:50:31,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64936 states. [2018-10-24 14:50:31,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64936 states to 64936 states and 78730 transitions. [2018-10-24 14:50:31,731 INFO L78 Accepts]: Start accepts. Automaton has 64936 states and 78730 transitions. Word has length 751 [2018-10-24 14:50:31,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:50:31,732 INFO L481 AbstractCegarLoop]: Abstraction has 64936 states and 78730 transitions. [2018-10-24 14:50:31,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:50:31,733 INFO L276 IsEmpty]: Start isEmpty. Operand 64936 states and 78730 transitions. [2018-10-24 14:50:31,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 871 [2018-10-24 14:50:31,769 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:50:31,770 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:50:31,770 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:50:31,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:50:31,771 INFO L82 PathProgramCache]: Analyzing trace with hash 781104325, now seen corresponding path program 1 times [2018-10-24 14:50:31,771 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:50:31,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:50:31,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:31,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:50:31,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:50:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2018-10-24 14:50:33,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:50:33,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:50:33,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:50:33,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:50:33,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:50:33,077 INFO L87 Difference]: Start difference. First operand 64936 states and 78730 transitions. Second operand 5 states. [2018-10-24 14:51:04,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:51:04,896 INFO L93 Difference]: Finished difference Result 229770 states and 282817 transitions. [2018-10-24 14:51:04,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:51:04,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 870 [2018-10-24 14:51:04,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:51:05,070 INFO L225 Difference]: With dead ends: 229770 [2018-10-24 14:51:05,071 INFO L226 Difference]: Without dead ends: 166202 [2018-10-24 14:51:05,109 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:51:05,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166202 states. [2018-10-24 14:51:06,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166202 to 127786. [2018-10-24 14:51:06,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127786 states. [2018-10-24 14:51:06,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127786 states to 127786 states and 154598 transitions. [2018-10-24 14:51:06,397 INFO L78 Accepts]: Start accepts. Automaton has 127786 states and 154598 transitions. Word has length 870 [2018-10-24 14:51:06,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:51:06,398 INFO L481 AbstractCegarLoop]: Abstraction has 127786 states and 154598 transitions. [2018-10-24 14:51:06,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:51:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand 127786 states and 154598 transitions. [2018-10-24 14:51:06,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2018-10-24 14:51:06,414 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:51:06,415 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:51:06,416 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:51:06,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:51:06,416 INFO L82 PathProgramCache]: Analyzing trace with hash 792380523, now seen corresponding path program 1 times [2018-10-24 14:51:06,416 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:51:06,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:51:06,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:51:06,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:51:06,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:51:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:51:07,270 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2018-10-24 14:51:07,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:51:07,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:51:07,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:51:07,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:51:07,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:51:07,274 INFO L87 Difference]: Start difference. First operand 127786 states and 154598 transitions. Second operand 3 states. [2018-10-24 14:51:20,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:51:20,125 INFO L93 Difference]: Finished difference Result 291085 states and 352937 transitions. [2018-10-24 14:51:20,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:51:20,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 954 [2018-10-24 14:51:20,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:51:20,335 INFO L225 Difference]: With dead ends: 291085 [2018-10-24 14:51:20,335 INFO L226 Difference]: Without dead ends: 164667 [2018-10-24 14:51:20,416 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:51:20,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164667 states. [2018-10-24 14:51:22,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164667 to 157836. [2018-10-24 14:51:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157836 states. [2018-10-24 14:51:22,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157836 states to 157836 states and 188439 transitions. [2018-10-24 14:51:22,671 INFO L78 Accepts]: Start accepts. Automaton has 157836 states and 188439 transitions. Word has length 954 [2018-10-24 14:51:22,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:51:22,672 INFO L481 AbstractCegarLoop]: Abstraction has 157836 states and 188439 transitions. [2018-10-24 14:51:22,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:51:22,672 INFO L276 IsEmpty]: Start isEmpty. Operand 157836 states and 188439 transitions. [2018-10-24 14:51:22,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1012 [2018-10-24 14:51:22,689 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:51:22,690 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:51:22,690 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:51:22,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:51:22,691 INFO L82 PathProgramCache]: Analyzing trace with hash 2063917265, now seen corresponding path program 1 times [2018-10-24 14:51:22,691 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:51:22,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:51:22,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:51:22,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:51:22,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:51:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:51:23,847 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2018-10-24 14:51:23,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:51:23,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:51:23,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:51:23,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:51:23,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:51:23,849 INFO L87 Difference]: Start difference. First operand 157836 states and 188439 transitions. Second operand 3 states. Received shutdown request... [2018-10-24 14:51:26,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:51:26,611 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:51:26,617 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:51:26,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:51:26 BoogieIcfgContainer [2018-10-24 14:51:26,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:51:26,618 INFO L168 Benchmark]: Toolchain (without parser) took 235030.30 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 912.9 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:26,619 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:51:26,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3255.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 994.5 MB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:26,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 1182.98 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.2 MB). Free memory was 994.5 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:26,621 INFO L168 Benchmark]: Boogie Preprocessor took 888.05 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 98.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:26,622 INFO L168 Benchmark]: RCFGBuilder took 18078.32 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 280.0 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -394.1 MB). Peak memory consumption was 863.6 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:26,623 INFO L168 Benchmark]: TraceAbstraction took 211618.13 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.3 GB). Free memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: -444.4 MB). Peak memory consumption was 808.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:26,629 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3255.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 994.5 MB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1182.98 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.2 MB). Free memory was 994.5 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 888.05 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 98.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18078.32 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 280.0 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -394.1 MB). Peak memory consumption was 863.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211618.13 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.3 GB). Free memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: -444.4 MB). Peak memory consumption was 808.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 58). Cancelled while BasicCegarLoop was constructing difference of abstraction (157836states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (4023 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 211.5s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 195.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13025 SDtfs, 36640 SDslu, 8663 SDs, 0 SdLazy, 65881 SolverSat, 19145 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 168.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 13 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157836occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 103858 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 4087 NumberOfCodeBlocks, 4087 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 4078 ConstructedInterpolants, 0 QuantifiedInterpolants, 9134544 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 2531/2531 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown