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/Problem12_label37_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:04:28,965 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:04:28,969 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:04:28,985 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:04:28,985 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:04:28,986 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:04:28,987 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:04:28,989 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:04:28,991 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:04:28,991 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:04:28,992 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:04:28,993 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:04:28,994 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:04:28,994 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:04:28,996 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:04:28,996 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:04:28,997 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:04:28,999 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:04:29,001 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:04:29,003 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:04:29,004 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:04:29,005 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:04:29,008 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:04:29,008 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:04:29,008 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:04:29,009 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:04:29,010 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:04:29,011 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:04:29,012 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:04:29,013 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:04:29,013 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:04:29,014 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:04:29,019 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 14:04:29,043 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:04:29,043 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:04:29,044 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:04:29,044 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:04:29,045 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:04:29,045 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:04:29,045 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:04:29,046 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:04:29,046 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:04:29,046 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:04:29,046 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:04:29,046 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:04:29,047 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:04:29,047 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:04:29,047 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:04:29,047 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:04:29,047 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:04:29,048 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:04:29,048 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:04:29,048 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:04:29,048 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:04:29,048 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:04:29,048 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:04:29,049 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:04:29,049 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:04:29,049 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:04:29,049 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:04:29,049 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:04:29,107 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:04:29,119 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:04:29,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:04:29,124 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:04:29,124 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:04:29,125 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label37_false-unreach-call.c [2018-10-24 14:04:29,185 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a5120553d/8e45ca4e100c4eb6aed669c48ced0a5c/FLAG863af3843 [2018-10-24 14:04:29,962 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:04:29,963 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label37_false-unreach-call.c [2018-10-24 14:04:29,997 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a5120553d/8e45ca4e100c4eb6aed669c48ced0a5c/FLAG863af3843 [2018-10-24 14:04:30,018 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a5120553d/8e45ca4e100c4eb6aed669c48ced0a5c [2018-10-24 14:04:30,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:04:30,034 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:04:30,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:04:30,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:04:30,042 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:04:30,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:04:30" (1/1) ... [2018-10-24 14:04:30,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b326c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:30, skipping insertion in model container [2018-10-24 14:04:30,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:04:30" (1/1) ... [2018-10-24 14:04:30,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:04:30,232 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:04:31,410 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:04:31,415 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:04:32,076 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:04:32,110 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:04:32,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32 WrapperNode [2018-10-24 14:04:32,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:04:32,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:04:32,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:04:32,112 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:04:32,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32" (1/1) ... [2018-10-24 14:04:32,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32" (1/1) ... [2018-10-24 14:04:32,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:04:32,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:04:32,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:04:32,770 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:04:32,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32" (1/1) ... [2018-10-24 14:04:32,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32" (1/1) ... [2018-10-24 14:04:32,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32" (1/1) ... [2018-10-24 14:04:32,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32" (1/1) ... [2018-10-24 14:04:32,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32" (1/1) ... [2018-10-24 14:04:33,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32" (1/1) ... [2018-10-24 14:04:33,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32" (1/1) ... [2018-10-24 14:04:33,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:04:33,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:04:33,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:04:33,113 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:04:33,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32" (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 14:04:33,180 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:04:33,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:04:33,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:04:42,231 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:04:42,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:04:42 BoogieIcfgContainer [2018-10-24 14:04:42,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:04:42,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:04:42,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:04:42,239 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:04:42,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:04:30" (1/3) ... [2018-10-24 14:04:42,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6502e358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:04:42, skipping insertion in model container [2018-10-24 14:04:42,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:04:32" (2/3) ... [2018-10-24 14:04:42,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6502e358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:04:42, skipping insertion in model container [2018-10-24 14:04:42,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:04:42" (3/3) ... [2018-10-24 14:04:42,247 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label37_false-unreach-call.c [2018-10-24 14:04:42,259 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:04:42,276 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:04:42,296 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:04:42,357 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:04:42,358 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:04:42,358 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:04:42,358 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:04:42,358 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:04:42,359 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:04:42,359 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:04:42,359 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:04:42,359 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:04:42,408 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-10-24 14:04:42,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-24 14:04:42,423 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:04:42,424 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:04:42,427 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:04:42,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:04:42,434 INFO L82 PathProgramCache]: Analyzing trace with hash 340357962, now seen corresponding path program 1 times [2018-10-24 14:04:42,437 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:04:42,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:04:42,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:42,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:04:42,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:04:42,780 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 14:04:42,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:04:42,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:04:42,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:04:42,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:04:42,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:04:42,807 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-10-24 14:04:54,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:04:54,423 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-10-24 14:04:54,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:04:54,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-10-24 14:04:54,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:04:54,470 INFO L225 Difference]: With dead ends: 3146 [2018-10-24 14:04:54,470 INFO L226 Difference]: Without dead ends: 2320 [2018-10-24 14:04:54,477 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 14:04:54,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-10-24 14:04:54,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-10-24 14:04:54,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-10-24 14:04:54,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 4229 transitions. [2018-10-24 14:04:54,627 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 4229 transitions. Word has length 14 [2018-10-24 14:04:54,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:04:54,627 INFO L481 AbstractCegarLoop]: Abstraction has 2320 states and 4229 transitions. [2018-10-24 14:04:54,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:04:54,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 4229 transitions. [2018-10-24 14:04:54,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-24 14:04:54,631 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:04:54,632 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:04:54,632 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:04:54,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:04:54,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1309216847, now seen corresponding path program 1 times [2018-10-24 14:04:54,633 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:04:54,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:04:54,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:54,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:04:54,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:04:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:04:54,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:04:54,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:04:54,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:04:54,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:04:54,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:04:54,954 INFO L87 Difference]: Start difference. First operand 2320 states and 4229 transitions. Second operand 4 states. [2018-10-24 14:05:06,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:05:06,254 INFO L93 Difference]: Finished difference Result 9150 states and 16788 transitions. [2018-10-24 14:05:06,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:05:06,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2018-10-24 14:05:06,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:05:06,292 INFO L225 Difference]: With dead ends: 9150 [2018-10-24 14:05:06,292 INFO L226 Difference]: Without dead ends: 6832 [2018-10-24 14:05:06,297 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 14:05:06,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2018-10-24 14:05:06,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6832. [2018-10-24 14:05:06,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6832 states. [2018-10-24 14:05:06,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 10629 transitions. [2018-10-24 14:05:06,433 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 10629 transitions. Word has length 90 [2018-10-24 14:05:06,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:05:06,434 INFO L481 AbstractCegarLoop]: Abstraction has 6832 states and 10629 transitions. [2018-10-24 14:05:06,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:05:06,434 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 10629 transitions. [2018-10-24 14:05:06,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-24 14:05:06,444 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:05:06,444 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:05:06,444 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:05:06,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:05:06,445 INFO L82 PathProgramCache]: Analyzing trace with hash -251409824, now seen corresponding path program 1 times [2018-10-24 14:05:06,445 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:05:06,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:05:06,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:06,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:05:06,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:05:06,731 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:05:06,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:05:06,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:05:06,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:05:06,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:05:06,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:05:06,733 INFO L87 Difference]: Start difference. First operand 6832 states and 10629 transitions. Second operand 4 states. [2018-10-24 14:05:15,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:05:15,355 INFO L93 Difference]: Finished difference Result 27260 states and 42449 transitions. [2018-10-24 14:05:15,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:05:15,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2018-10-24 14:05:15,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:05:15,437 INFO L225 Difference]: With dead ends: 27260 [2018-10-24 14:05:15,437 INFO L226 Difference]: Without dead ends: 20430 [2018-10-24 14:05:15,450 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 14:05:15,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20430 states. [2018-10-24 14:05:15,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20430 to 13600. [2018-10-24 14:05:15,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13600 states. [2018-10-24 14:05:15,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13600 states to 13600 states and 19341 transitions. [2018-10-24 14:05:15,769 INFO L78 Accepts]: Start accepts. Automaton has 13600 states and 19341 transitions. Word has length 96 [2018-10-24 14:05:15,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:05:15,770 INFO L481 AbstractCegarLoop]: Abstraction has 13600 states and 19341 transitions. [2018-10-24 14:05:15,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:05:15,771 INFO L276 IsEmpty]: Start isEmpty. Operand 13600 states and 19341 transitions. [2018-10-24 14:05:15,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-24 14:05:15,776 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:05:15,776 INFO L375 BasicCegarLoop]: trace histogram [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 14:05:15,777 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:05:15,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:05:15,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1742806893, now seen corresponding path program 1 times [2018-10-24 14:05:15,777 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:05:15,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:05:15,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:15,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:05:15,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:05:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:05:16,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:05:16,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:05:16,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:05:16,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:05:16,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:05:16,100 INFO L87 Difference]: Start difference. First operand 13600 states and 19341 transitions. Second operand 4 states. [2018-10-24 14:05:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:05:25,354 INFO L93 Difference]: Finished difference Result 52783 states and 74748 transitions. [2018-10-24 14:05:25,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:05:25,354 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2018-10-24 14:05:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:05:25,441 INFO L225 Difference]: With dead ends: 52783 [2018-10-24 14:05:25,441 INFO L226 Difference]: Without dead ends: 39185 [2018-10-24 14:05:25,463 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:05:25,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39185 states. [2018-10-24 14:05:25,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39185 to 26384. [2018-10-24 14:05:25,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26384 states. [2018-10-24 14:05:25,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26384 states to 26384 states and 33902 transitions. [2018-10-24 14:05:25,976 INFO L78 Accepts]: Start accepts. Automaton has 26384 states and 33902 transitions. Word has length 114 [2018-10-24 14:05:25,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:05:25,977 INFO L481 AbstractCegarLoop]: Abstraction has 26384 states and 33902 transitions. [2018-10-24 14:05:25,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:05:25,977 INFO L276 IsEmpty]: Start isEmpty. Operand 26384 states and 33902 transitions. [2018-10-24 14:05:25,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-10-24 14:05:25,980 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:05:25,980 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:05:25,980 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:05:25,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:05:25,981 INFO L82 PathProgramCache]: Analyzing trace with hash -882986230, now seen corresponding path program 1 times [2018-10-24 14:05:25,981 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:05:25,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:05:25,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:25,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:05:25,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:05:26,293 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 14:05:26,470 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2018-10-24 14:05:26,696 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:05:26,696 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:05:26,696 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:05:26,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:05:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:05:26,801 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:05:26,998 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:05:27,031 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:05:27,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2018-10-24 14:05:27,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:05:27,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:05:27,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:05:27,033 INFO L87 Difference]: Start difference. First operand 26384 states and 33902 transitions. Second operand 8 states. [2018-10-24 14:05:48,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:05:48,115 INFO L93 Difference]: Finished difference Result 79839 states and 102700 transitions. [2018-10-24 14:05:48,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 14:05:48,116 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 156 [2018-10-24 14:05:48,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:05:48,209 INFO L225 Difference]: With dead ends: 79839 [2018-10-24 14:05:48,209 INFO L226 Difference]: Without dead ends: 53457 [2018-10-24 14:05:48,241 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 155 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2018-10-24 14:05:48,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53457 states. [2018-10-24 14:05:48,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53457 to 52704. [2018-10-24 14:05:48,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52704 states. [2018-10-24 14:05:48,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52704 states to 52704 states and 65734 transitions. [2018-10-24 14:05:48,917 INFO L78 Accepts]: Start accepts. Automaton has 52704 states and 65734 transitions. Word has length 156 [2018-10-24 14:05:48,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:05:48,917 INFO L481 AbstractCegarLoop]: Abstraction has 52704 states and 65734 transitions. [2018-10-24 14:05:48,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:05:48,918 INFO L276 IsEmpty]: Start isEmpty. Operand 52704 states and 65734 transitions. [2018-10-24 14:05:48,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-10-24 14:05:48,928 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:05:48,929 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 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 14:05:48,929 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:05:48,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:05:48,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1392819578, now seen corresponding path program 1 times [2018-10-24 14:05:48,930 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:05:48,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:05:48,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:48,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:05:48,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:05:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 14:05:49,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:05:49,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:05:49,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:05:49,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:05:49,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:05:49,378 INFO L87 Difference]: Start difference. First operand 52704 states and 65734 transitions. Second operand 3 states. [2018-10-24 14:05:58,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:05:58,467 INFO L93 Difference]: Finished difference Result 106158 states and 132345 transitions. [2018-10-24 14:05:58,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:05:58,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2018-10-24 14:05:58,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:05:58,534 INFO L225 Difference]: With dead ends: 106158 [2018-10-24 14:05:58,534 INFO L226 Difference]: Without dead ends: 53456 [2018-10-24 14:05:58,578 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 4 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 14:05:58,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53456 states. [2018-10-24 14:05:59,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53456 to 53456. [2018-10-24 14:05:59,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53456 states. [2018-10-24 14:05:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53456 states to 53456 states and 64094 transitions. [2018-10-24 14:05:59,160 INFO L78 Accepts]: Start accepts. Automaton has 53456 states and 64094 transitions. Word has length 274 [2018-10-24 14:05:59,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:05:59,161 INFO L481 AbstractCegarLoop]: Abstraction has 53456 states and 64094 transitions. [2018-10-24 14:05:59,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:05:59,161 INFO L276 IsEmpty]: Start isEmpty. Operand 53456 states and 64094 transitions. [2018-10-24 14:05:59,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2018-10-24 14:05:59,196 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:05:59,197 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:05:59,197 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:05:59,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:05:59,197 INFO L82 PathProgramCache]: Analyzing trace with hash 711428642, now seen corresponding path program 1 times [2018-10-24 14:05:59,197 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:05:59,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:05:59,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:59,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:05:59,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:05:59,704 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 89 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:05:59,704 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:05:59,704 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:05:59,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:05:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:05:59,837 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:06:00,016 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:06:00,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:06:00,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-10-24 14:06:00,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:06:00,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:06:00,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:06:00,041 INFO L87 Difference]: Start difference. First operand 53456 states and 64094 transitions. Second operand 6 states. [2018-10-24 14:06:17,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:06:17,329 INFO L93 Difference]: Finished difference Result 131006 states and 153980 transitions. [2018-10-24 14:06:17,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 14:06:17,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 439 [2018-10-24 14:06:17,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:06:17,420 INFO L225 Difference]: With dead ends: 131006 [2018-10-24 14:06:17,420 INFO L226 Difference]: Without dead ends: 75293 [2018-10-24 14:06:17,462 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 440 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:06:17,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75293 states. [2018-10-24 14:06:18,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75293 to 54959. [2018-10-24 14:06:18,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54959 states. [2018-10-24 14:06:18,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54959 states to 54959 states and 63880 transitions. [2018-10-24 14:06:18,690 INFO L78 Accepts]: Start accepts. Automaton has 54959 states and 63880 transitions. Word has length 439 [2018-10-24 14:06:18,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:06:18,691 INFO L481 AbstractCegarLoop]: Abstraction has 54959 states and 63880 transitions. [2018-10-24 14:06:18,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:06:18,691 INFO L276 IsEmpty]: Start isEmpty. Operand 54959 states and 63880 transitions. [2018-10-24 14:06:18,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2018-10-24 14:06:18,735 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:06:18,736 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:06:18,736 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:06:18,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:06:18,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1293834870, now seen corresponding path program 1 times [2018-10-24 14:06:18,737 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:06:18,737 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:06:18,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:18,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:06:18,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:06:19,414 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 14:06:19,836 WARN L179 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2018-10-24 14:06:20,566 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 303 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-24 14:06:20,567 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:06:20,567 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:06:20,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:06:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:06:20,724 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:06:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 225 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:06:21,637 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:06:21,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2018-10-24 14:06:21,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-24 14:06:21,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-24 14:06:21,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-10-24 14:06:21,639 INFO L87 Difference]: Start difference. First operand 54959 states and 63880 transitions. Second operand 11 states. [2018-10-24 14:06:43,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:06:43,909 INFO L93 Difference]: Finished difference Result 110669 states and 128517 transitions. [2018-10-24 14:06:43,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 14:06:43,910 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 589 [2018-10-24 14:06:43,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:06:43,977 INFO L225 Difference]: With dead ends: 110669 [2018-10-24 14:06:43,977 INFO L226 Difference]: Without dead ends: 55712 [2018-10-24 14:06:44,007 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 586 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2018-10-24 14:06:44,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55712 states. [2018-10-24 14:06:44,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55712 to 54959. [2018-10-24 14:06:44,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54959 states. [2018-10-24 14:06:44,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54959 states to 54959 states and 63600 transitions. [2018-10-24 14:06:44,554 INFO L78 Accepts]: Start accepts. Automaton has 54959 states and 63600 transitions. Word has length 589 [2018-10-24 14:06:44,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:06:44,554 INFO L481 AbstractCegarLoop]: Abstraction has 54959 states and 63600 transitions. [2018-10-24 14:06:44,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-24 14:06:44,555 INFO L276 IsEmpty]: Start isEmpty. Operand 54959 states and 63600 transitions. [2018-10-24 14:06:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2018-10-24 14:06:44,579 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:06:44,580 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:06:44,580 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:06:44,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:06:44,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1803929979, now seen corresponding path program 1 times [2018-10-24 14:06:44,581 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:06:44,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:06:44,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:44,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:06:44,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:06:45,152 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-24 14:06:45,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:06:45,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:06:45,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:06:45,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:06:45,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:06:45,154 INFO L87 Difference]: Start difference. First operand 54959 states and 63600 transitions. Second operand 4 states. [2018-10-24 14:06:55,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:06:55,153 INFO L93 Difference]: Finished difference Result 109916 states and 127198 transitions. [2018-10-24 14:06:55,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:06:55,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 595 [2018-10-24 14:06:55,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:06:55,207 INFO L225 Difference]: With dead ends: 109916 [2018-10-24 14:06:55,208 INFO L226 Difference]: Without dead ends: 54959 [2018-10-24 14:06:55,235 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:06:55,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54959 states. [2018-10-24 14:06:55,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54959 to 54959. [2018-10-24 14:06:55,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54959 states. [2018-10-24 14:06:55,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54959 states to 54959 states and 62563 transitions. [2018-10-24 14:06:55,723 INFO L78 Accepts]: Start accepts. Automaton has 54959 states and 62563 transitions. Word has length 595 [2018-10-24 14:06:55,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:06:55,724 INFO L481 AbstractCegarLoop]: Abstraction has 54959 states and 62563 transitions. [2018-10-24 14:06:55,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:06:55,724 INFO L276 IsEmpty]: Start isEmpty. Operand 54959 states and 62563 transitions. [2018-10-24 14:06:55,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2018-10-24 14:06:55,749 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:06:55,750 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:06:55,750 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:06:55,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:06:55,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1216200945, now seen corresponding path program 1 times [2018-10-24 14:06:55,751 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:06:55,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:06:55,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:55,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:06:55,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:06:56,697 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-10-24 14:06:57,323 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 342 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:06:57,324 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:06:57,324 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 14:06:57,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:06:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:06:57,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:06:58,949 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-24 14:06:58,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:06:58,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-10-24 14:06:58,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:06:58,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:06:58,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:06:58,989 INFO L87 Difference]: Start difference. First operand 54959 states and 62563 transitions. Second operand 6 states. [2018-10-24 14:07:21,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:07:21,477 INFO L93 Difference]: Finished difference Result 149771 states and 172892 transitions. [2018-10-24 14:07:21,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 14:07:21,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 599 [2018-10-24 14:07:21,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:07:21,577 INFO L225 Difference]: With dead ends: 149771 [2018-10-24 14:07:21,577 INFO L226 Difference]: Without dead ends: 94060 [2018-10-24 14:07:21,608 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 602 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-10-24 14:07:21,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94060 states. [2018-10-24 14:07:22,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94060 to 94060. [2018-10-24 14:07:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94060 states. [2018-10-24 14:07:22,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94060 states to 94060 states and 103116 transitions. [2018-10-24 14:07:22,360 INFO L78 Accepts]: Start accepts. Automaton has 94060 states and 103116 transitions. Word has length 599 [2018-10-24 14:07:22,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:07:22,360 INFO L481 AbstractCegarLoop]: Abstraction has 94060 states and 103116 transitions. [2018-10-24 14:07:22,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:07:22,361 INFO L276 IsEmpty]: Start isEmpty. Operand 94060 states and 103116 transitions. [2018-10-24 14:07:22,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2018-10-24 14:07:22,380 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:07:22,381 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:07:22,381 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:07:22,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:07:22,382 INFO L82 PathProgramCache]: Analyzing trace with hash -568979800, now seen corresponding path program 1 times [2018-10-24 14:07:22,382 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:07:22,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:07:22,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:22,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:22,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:22,954 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 8 [2018-10-24 14:07:23,118 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-24 14:07:23,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:07:23,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:07:23,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:07:23,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:07:23,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:07:23,119 INFO L87 Difference]: Start difference. First operand 94060 states and 103116 transitions. Second operand 4 states. [2018-10-24 14:07:31,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:07:31,298 INFO L93 Difference]: Finished difference Result 224214 states and 244914 transitions. [2018-10-24 14:07:31,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:07:31,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 609 [2018-10-24 14:07:31,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:07:31,481 INFO L225 Difference]: With dead ends: 224214 [2018-10-24 14:07:31,482 INFO L226 Difference]: Without dead ends: 122625 [2018-10-24 14:07:31,556 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:07:31,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122625 states. [2018-10-24 14:07:32,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122625 to 121121. [2018-10-24 14:07:32,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121121 states. [2018-10-24 14:07:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121121 states to 121121 states and 130820 transitions. [2018-10-24 14:07:32,656 INFO L78 Accepts]: Start accepts. Automaton has 121121 states and 130820 transitions. Word has length 609 [2018-10-24 14:07:32,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:07:32,656 INFO L481 AbstractCegarLoop]: Abstraction has 121121 states and 130820 transitions. [2018-10-24 14:07:32,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:07:32,656 INFO L276 IsEmpty]: Start isEmpty. Operand 121121 states and 130820 transitions. [2018-10-24 14:07:32,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2018-10-24 14:07:32,681 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:07:32,682 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:32,682 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:07:32,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:07:32,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1069367211, now seen corresponding path program 1 times [2018-10-24 14:07:32,683 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:07:32,683 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:07:32,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:32,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:32,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:34,588 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 341 proven. 52 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-10-24 14:07:34,588 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:07:34,588 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:07:34,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:34,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:07:35,462 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 297 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:07:35,484 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:07:35,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2018-10-24 14:07:35,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 14:07:35,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 14:07:35,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-10-24 14:07:35,487 INFO L87 Difference]: Start difference. First operand 121121 states and 130820 transitions. Second operand 12 states. [2018-10-24 14:07:59,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:07:59,244 INFO L93 Difference]: Finished difference Result 268680 states and 289469 transitions. [2018-10-24 14:07:59,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-24 14:07:59,244 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 627 [2018-10-24 14:07:59,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:07:59,375 INFO L225 Difference]: With dead ends: 268680 [2018-10-24 14:07:59,375 INFO L226 Difference]: Without dead ends: 133251 [2018-10-24 14:07:59,437 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 624 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2018-10-24 14:07:59,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133251 states. [2018-10-24 14:08:00,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133251 to 122603. [2018-10-24 14:08:00,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122603 states. [2018-10-24 14:08:00,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122603 states to 122603 states and 129789 transitions. [2018-10-24 14:08:00,967 INFO L78 Accepts]: Start accepts. Automaton has 122603 states and 129789 transitions. Word has length 627 [2018-10-24 14:08:00,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:00,967 INFO L481 AbstractCegarLoop]: Abstraction has 122603 states and 129789 transitions. [2018-10-24 14:08:00,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 14:08:00,967 INFO L276 IsEmpty]: Start isEmpty. Operand 122603 states and 129789 transitions. [2018-10-24 14:08:00,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2018-10-24 14:08:00,988 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:00,989 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2018-10-24 14:08:00,989 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:00,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:00,989 INFO L82 PathProgramCache]: Analyzing trace with hash -428591265, now seen corresponding path program 1 times [2018-10-24 14:08:00,989 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:00,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:00,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:00,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:00,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:01,830 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 14:08:01,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:01,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:08:01,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:08:01,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:08:01,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:08:01,832 INFO L87 Difference]: Start difference. First operand 122603 states and 129789 transitions. Second operand 4 states. [2018-10-24 14:08:10,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:10,922 INFO L93 Difference]: Finished difference Result 250468 states and 264939 transitions. [2018-10-24 14:08:10,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:08:10,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 631 [2018-10-24 14:08:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:11,078 INFO L225 Difference]: With dead ends: 250468 [2018-10-24 14:08:11,078 INFO L226 Difference]: Without dead ends: 126360 [2018-10-24 14:08:11,145 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:08:11,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126360 states. [2018-10-24 14:08:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126360 to 120344. [2018-10-24 14:08:12,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120344 states. [2018-10-24 14:08:12,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120344 states to 120344 states and 126290 transitions. [2018-10-24 14:08:12,272 INFO L78 Accepts]: Start accepts. Automaton has 120344 states and 126290 transitions. Word has length 631 [2018-10-24 14:08:12,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:12,273 INFO L481 AbstractCegarLoop]: Abstraction has 120344 states and 126290 transitions. [2018-10-24 14:08:12,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:08:12,273 INFO L276 IsEmpty]: Start isEmpty. Operand 120344 states and 126290 transitions. [2018-10-24 14:08:12,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2018-10-24 14:08:12,291 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:12,291 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 14:08:12,291 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:12,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:12,292 INFO L82 PathProgramCache]: Analyzing trace with hash -761895096, now seen corresponding path program 1 times [2018-10-24 14:08:12,292 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:12,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:12,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:12,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:12,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:13,060 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2018-10-24 14:08:14,172 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-10-24 14:08:14,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:14,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 14:08:14,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:08:14,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:08:14,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:08:14,174 INFO L87 Difference]: Start difference. First operand 120344 states and 126290 transitions. Second operand 6 states. [2018-10-24 14:08:24,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:24,161 INFO L93 Difference]: Finished difference Result 248958 states and 261192 transitions. [2018-10-24 14:08:24,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:08:24,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 646 [2018-10-24 14:08:24,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:24,291 INFO L225 Difference]: With dead ends: 248958 [2018-10-24 14:08:24,291 INFO L226 Difference]: Without dead ends: 127861 [2018-10-24 14:08:24,348 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:08:24,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127861 states. Received shutdown request... [2018-10-24 14:08:25,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127861 to 122597. [2018-10-24 14:08:25,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122597 states. [2018-10-24 14:08:25,206 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:08:25,212 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:08:25,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:08:25 BoogieIcfgContainer [2018-10-24 14:08:25,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:08:25,213 INFO L168 Benchmark]: Toolchain (without parser) took 235181.24 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -586.5 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 14:08:25,214 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:08:25,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2073.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:08:25,216 INFO L168 Benchmark]: Boogie Procedure Inliner took 657.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 808.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2018-10-24 14:08:25,216 INFO L168 Benchmark]: Boogie Preprocessor took 342.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2018-10-24 14:08:25,217 INFO L168 Benchmark]: RCFGBuilder took 9120.05 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 212.3 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -157.6 MB). Peak memory consumption was 622.5 MB. Max. memory is 7.1 GB. [2018-10-24 14:08:25,218 INFO L168 Benchmark]: TraceAbstraction took 222979.26 ms. Allocated memory was 2.6 GB in the beginning and 3.8 GB in the end (delta: 1.3 GB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 336.3 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-24 14:08:25,223 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2073.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 657.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 808.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 342.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9120.05 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 212.3 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -157.6 MB). Peak memory consumption was 622.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222979.26 ms. Allocated memory was 2.6 GB in the beginning and 3.8 GB in the end (delta: 1.3 GB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 336.3 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 51). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 222.8s OverallTime, 14 OverallIterations, 4 TraceHistogramMax, 195.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8933 SDtfs, 53618 SDslu, 1900 SDs, 0 SdLazy, 103490 SolverSat, 19776 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 159.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2518 GetRequests, 2422 SyntacticMatches, 26 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122603occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 9.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 59639 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 7889 NumberOfCodeBlocks, 7889 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 7870 ConstructedInterpolants, 0 QuantifiedInterpolants, 25004145 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2919 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 3846/4155 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown