java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label55_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:46:25,421 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:46:25,424 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:46:25,442 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:46:25,442 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:46:25,444 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:46:25,445 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:46:25,449 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:46:25,451 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:46:25,452 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:46:25,462 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:46:25,462 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:46:25,463 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:46:25,464 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:46:25,465 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:46:25,470 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:46:25,471 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:46:25,472 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:46:25,478 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:46:25,479 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:46:25,480 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:46:25,485 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:46:25,489 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 19:46:25,490 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 19:46:25,490 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 19:46:25,493 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 19:46:25,494 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 19:46:25,495 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 19:46:25,495 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 19:46:25,499 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 19:46:25,499 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 19:46:25,501 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 19:46:25,506 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 19:46:25,528 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:46:25,528 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:46:25,529 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:46:25,530 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:46:25,531 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:46:25,531 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:46:25,531 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:46:25,532 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:46:25,532 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:46:25,532 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:46:25,532 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:46:25,532 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:46:25,534 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:46:25,534 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:46:25,534 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:46:25,534 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:46:25,535 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:46:25,535 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:46:25,535 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:46:25,535 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:46:25,535 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:46:25,536 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:46:25,537 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:46:25,537 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:46:25,537 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:46:25,538 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:46:25,538 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:46:25,538 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:46:25,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:46:25,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:46:25,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:46:25,619 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:46:25,620 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:46:25,620 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label55_false-unreach-call.c [2018-11-06 19:46:25,686 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256a16b3d/3ea38ab84ccd4a08bd04af3617dae7a5/FLAG06443cf17 [2018-11-06 19:46:26,553 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:46:26,554 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label55_false-unreach-call.c [2018-11-06 19:46:26,607 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256a16b3d/3ea38ab84ccd4a08bd04af3617dae7a5/FLAG06443cf17 [2018-11-06 19:46:26,628 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/256a16b3d/3ea38ab84ccd4a08bd04af3617dae7a5 [2018-11-06 19:46:26,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:46:26,644 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:46:26,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:46:26,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:46:26,651 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:46:26,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:46:26" (1/1) ... [2018-11-06 19:46:26,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d140be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:26, skipping insertion in model container [2018-11-06 19:46:26,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:46:26" (1/1) ... [2018-11-06 19:46:26,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:46:26,929 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:46:28,926 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:46:28,930 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:46:30,054 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:46:30,120 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:46:30,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30 WrapperNode [2018-11-06 19:46:30,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:46:30,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:46:30,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:46:30,124 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:46:30,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30" (1/1) ... [2018-11-06 19:46:30,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30" (1/1) ... [2018-11-06 19:46:31,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:46:31,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:46:31,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:46:31,125 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:46:31,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30" (1/1) ... [2018-11-06 19:46:31,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30" (1/1) ... [2018-11-06 19:46:31,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30" (1/1) ... [2018-11-06 19:46:31,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30" (1/1) ... [2018-11-06 19:46:31,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30" (1/1) ... [2018-11-06 19:46:31,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30" (1/1) ... [2018-11-06 19:46:31,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30" (1/1) ... [2018-11-06 19:46:31,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:46:31,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:46:31,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:46:31,847 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:46:31,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:46:31,923 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:46:31,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:46:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:46:48,710 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:46:48,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:46:48 BoogieIcfgContainer [2018-11-06 19:46:48,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:46:48,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:46:48,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:46:48,716 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:46:48,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:46:26" (1/3) ... [2018-11-06 19:46:48,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619459f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:46:48, skipping insertion in model container [2018-11-06 19:46:48,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:30" (2/3) ... [2018-11-06 19:46:48,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619459f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:46:48, skipping insertion in model container [2018-11-06 19:46:48,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:46:48" (3/3) ... [2018-11-06 19:46:48,722 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label55_false-unreach-call.c [2018-11-06 19:46:48,734 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:46:48,749 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:46:48,768 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:46:48,830 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:46:48,831 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:46:48,831 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:46:48,831 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:46:48,831 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:46:48,831 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:46:48,832 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:46:48,832 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:46:48,832 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:46:48,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-11-06 19:46:48,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-06 19:46:48,902 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:46:48,903 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:46:48,905 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:46:48,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:46:48,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1961166346, now seen corresponding path program 1 times [2018-11-06 19:46:48,915 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:46:48,916 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:46:48,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:46:48,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:46:48,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:46:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:46:49,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:46:49,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:46:49,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:46:49,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:46:49,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:46:49,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:46:49,340 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-11-06 19:47:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:47:08,625 INFO L93 Difference]: Finished difference Result 6322 states and 12078 transitions. [2018-11-06 19:47:08,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:47:08,627 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-06 19:47:08,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:47:08,684 INFO L225 Difference]: With dead ends: 6322 [2018-11-06 19:47:08,684 INFO L226 Difference]: Without dead ends: 4566 [2018-11-06 19:47:08,694 INFO L604 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 [2018-11-06 19:47:08,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2018-11-06 19:47:08,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 4562. [2018-11-06 19:47:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4562 states. [2018-11-06 19:47:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 7763 transitions. [2018-11-06 19:47:09,015 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 7763 transitions. Word has length 15 [2018-11-06 19:47:09,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:47:09,016 INFO L480 AbstractCegarLoop]: Abstraction has 4562 states and 7763 transitions. [2018-11-06 19:47:09,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:47:09,016 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 7763 transitions. [2018-11-06 19:47:09,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-06 19:47:09,020 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:47:09,020 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:47:09,021 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:47:09,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:47:09,021 INFO L82 PathProgramCache]: Analyzing trace with hash 2034846289, now seen corresponding path program 1 times [2018-11-06 19:47:09,021 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:47:09,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:47:09,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:09,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:47:09,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:47:09,444 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:47:09,445 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:47:09,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:47:09,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:47:09,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:47:09,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:47:09,448 INFO L87 Difference]: Start difference. First operand 4562 states and 7763 transitions. Second operand 4 states. [2018-11-06 19:47:30,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:47:30,072 INFO L93 Difference]: Finished difference Result 17536 states and 30099 transitions. [2018-11-06 19:47:30,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:47:30,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2018-11-06 19:47:30,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:47:30,140 INFO L225 Difference]: With dead ends: 17536 [2018-11-06 19:47:30,140 INFO L226 Difference]: Without dead ends: 12976 [2018-11-06 19:47:30,149 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:47:30,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12976 states. [2018-11-06 19:47:30,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12976 to 8660. [2018-11-06 19:47:30,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8660 states. [2018-11-06 19:47:30,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8660 states to 8660 states and 14380 transitions. [2018-11-06 19:47:30,364 INFO L78 Accepts]: Start accepts. Automaton has 8660 states and 14380 transitions. Word has length 85 [2018-11-06 19:47:30,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:47:30,365 INFO L480 AbstractCegarLoop]: Abstraction has 8660 states and 14380 transitions. [2018-11-06 19:47:30,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:47:30,365 INFO L276 IsEmpty]: Start isEmpty. Operand 8660 states and 14380 transitions. [2018-11-06 19:47:30,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-11-06 19:47:30,373 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:47:30,374 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:47:30,374 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:47:30,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:47:30,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1538210270, now seen corresponding path program 1 times [2018-11-06 19:47:30,375 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:47:30,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:47:30,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:30,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:47:30,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:47:30,695 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:47:30,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:47:30,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:47:30,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:47:30,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:47:30,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:47:30,697 INFO L87 Difference]: Start difference. First operand 8660 states and 14380 transitions. Second operand 4 states. [2018-11-06 19:47:46,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:47:46,266 INFO L93 Difference]: Finished difference Result 33813 states and 56473 transitions. [2018-11-06 19:47:46,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:47:46,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2018-11-06 19:47:46,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:47:46,339 INFO L225 Difference]: With dead ends: 33813 [2018-11-06 19:47:46,339 INFO L226 Difference]: Without dead ends: 25155 [2018-11-06 19:47:46,350 INFO L604 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 [2018-11-06 19:47:46,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25155 states. [2018-11-06 19:47:46,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25155 to 16865. [2018-11-06 19:47:46,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16865 states. [2018-11-06 19:47:46,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16865 states to 16865 states and 24314 transitions. [2018-11-06 19:47:46,699 INFO L78 Accepts]: Start accepts. Automaton has 16865 states and 24314 transitions. Word has length 107 [2018-11-06 19:47:46,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:47:46,700 INFO L480 AbstractCegarLoop]: Abstraction has 16865 states and 24314 transitions. [2018-11-06 19:47:46,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:47:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 16865 states and 24314 transitions. [2018-11-06 19:47:46,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-06 19:47:46,702 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:47:46,703 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:47:46,703 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:47:46,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:47:46,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1362622900, now seen corresponding path program 1 times [2018-11-06 19:47:46,704 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:47:46,704 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:47:46,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:46,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:47:46,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:47:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:47:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:47:46,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:47:46,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:47:46,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:47:47,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:47:47,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:47:47,000 INFO L87 Difference]: Start difference. First operand 16865 states and 24314 transitions. Second operand 4 states. [2018-11-06 19:48:02,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:48:02,511 INFO L93 Difference]: Finished difference Result 65426 states and 94868 transitions. [2018-11-06 19:48:02,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:48:02,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2018-11-06 19:48:02,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:48:02,621 INFO L225 Difference]: With dead ends: 65426 [2018-11-06 19:48:02,621 INFO L226 Difference]: Without dead ends: 48563 [2018-11-06 19:48:02,646 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:48:02,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48563 states. [2018-11-06 19:48:03,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48563 to 48550. [2018-11-06 19:48:03,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48550 states. [2018-11-06 19:48:03,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48550 states to 48550 states and 63472 transitions. [2018-11-06 19:48:03,282 INFO L78 Accepts]: Start accepts. Automaton has 48550 states and 63472 transitions. Word has length 116 [2018-11-06 19:48:03,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:48:03,282 INFO L480 AbstractCegarLoop]: Abstraction has 48550 states and 63472 transitions. [2018-11-06 19:48:03,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:48:03,282 INFO L276 IsEmpty]: Start isEmpty. Operand 48550 states and 63472 transitions. [2018-11-06 19:48:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-11-06 19:48:03,285 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:48:03,286 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:48:03,286 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:48:03,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:48:03,286 INFO L82 PathProgramCache]: Analyzing trace with hash 571693272, now seen corresponding path program 1 times [2018-11-06 19:48:03,286 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:48:03,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:48:03,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:03,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:48:03,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:48:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-06 19:48:03,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:48:03,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:48:03,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:48:03,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:48:03,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:48:03,653 INFO L87 Difference]: Start difference. First operand 48550 states and 63472 transitions. Second operand 4 states. [2018-11-06 19:48:16,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:48:16,179 INFO L93 Difference]: Finished difference Result 112127 states and 144774 transitions. [2018-11-06 19:48:16,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:48:16,180 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 178 [2018-11-06 19:48:16,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:48:16,262 INFO L225 Difference]: With dead ends: 112127 [2018-11-06 19:48:16,262 INFO L226 Difference]: Without dead ends: 63579 [2018-11-06 19:48:16,311 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:48:16,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63579 states. [2018-11-06 19:48:16,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63579 to 63570. [2018-11-06 19:48:16,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63570 states. [2018-11-06 19:48:17,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63570 states to 63570 states and 77358 transitions. [2018-11-06 19:48:17,003 INFO L78 Accepts]: Start accepts. Automaton has 63570 states and 77358 transitions. Word has length 178 [2018-11-06 19:48:17,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:48:17,003 INFO L480 AbstractCegarLoop]: Abstraction has 63570 states and 77358 transitions. [2018-11-06 19:48:17,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:48:17,004 INFO L276 IsEmpty]: Start isEmpty. Operand 63570 states and 77358 transitions. [2018-11-06 19:48:17,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2018-11-06 19:48:17,026 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:48:17,027 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:48:17,027 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:48:17,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:48:17,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1273459280, now seen corresponding path program 1 times [2018-11-06 19:48:17,028 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:48:17,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:48:17,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:17,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:48:17,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:48:18,160 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-06 19:48:18,448 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 21 [2018-11-06 19:48:18,567 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 26 [2018-11-06 19:48:20,144 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-11-06 19:48:20,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:48:20,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-06 19:48:20,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 19:48:20,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 19:48:20,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:48:20,147 INFO L87 Difference]: Start difference. First operand 63570 states and 77358 transitions. Second operand 8 states. [2018-11-06 19:48:37,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:48:37,237 INFO L93 Difference]: Finished difference Result 174483 states and 212363 transitions. [2018-11-06 19:48:37,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-06 19:48:37,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 751 [2018-11-06 19:48:37,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:48:37,367 INFO L225 Difference]: With dead ends: 174483 [2018-11-06 19:48:37,368 INFO L226 Difference]: Without dead ends: 110915 [2018-11-06 19:48:37,419 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2018-11-06 19:48:37,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110915 states. [2018-11-06 19:48:38,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110915 to 64936. [2018-11-06 19:48:38,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64936 states. [2018-11-06 19:48:38,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64936 states to 64936 states and 78730 transitions. [2018-11-06 19:48:38,342 INFO L78 Accepts]: Start accepts. Automaton has 64936 states and 78730 transitions. Word has length 751 [2018-11-06 19:48:38,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:48:38,343 INFO L480 AbstractCegarLoop]: Abstraction has 64936 states and 78730 transitions. [2018-11-06 19:48:38,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 19:48:38,343 INFO L276 IsEmpty]: Start isEmpty. Operand 64936 states and 78730 transitions. [2018-11-06 19:48:38,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 871 [2018-11-06 19:48:38,375 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:48:38,376 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:48:38,376 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:48:38,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:48:38,377 INFO L82 PathProgramCache]: Analyzing trace with hash 781104325, now seen corresponding path program 1 times [2018-11-06 19:48:38,377 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:48:38,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:48:38,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:38,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:48:38,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:48:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:48:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2018-11-06 19:48:39,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:48:39,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 19:48:39,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:48:39,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:48:39,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:48:39,985 INFO L87 Difference]: Start difference. First operand 64936 states and 78730 transitions. Second operand 5 states. [2018-11-06 19:49:01,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:49:01,875 INFO L93 Difference]: Finished difference Result 229770 states and 282817 transitions. [2018-11-06 19:49:01,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:49:01,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 870 [2018-11-06 19:49:01,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:49:02,119 INFO L225 Difference]: With dead ends: 229770 [2018-11-06 19:49:02,119 INFO L226 Difference]: Without dead ends: 166202 [2018-11-06 19:49:02,175 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:49:02,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166202 states. [2018-11-06 19:49:03,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166202 to 127786. [2018-11-06 19:49:03,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127786 states. [2018-11-06 19:49:03,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127786 states to 127786 states and 154598 transitions. [2018-11-06 19:49:03,649 INFO L78 Accepts]: Start accepts. Automaton has 127786 states and 154598 transitions. Word has length 870 [2018-11-06 19:49:03,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:49:03,650 INFO L480 AbstractCegarLoop]: Abstraction has 127786 states and 154598 transitions. [2018-11-06 19:49:03,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:49:03,650 INFO L276 IsEmpty]: Start isEmpty. Operand 127786 states and 154598 transitions. [2018-11-06 19:49:03,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2018-11-06 19:49:03,666 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:49:03,667 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:49:03,667 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:49:03,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:49:03,668 INFO L82 PathProgramCache]: Analyzing trace with hash 792380523, now seen corresponding path program 1 times [2018-11-06 19:49:03,668 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:49:03,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:49:03,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:49:03,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:49:03,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:49:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:49:05,130 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2018-11-06 19:49:05,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:49:05,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:49:05,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:49:05,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:49:05,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:49:05,132 INFO L87 Difference]: Start difference. First operand 127786 states and 154598 transitions. Second operand 3 states. [2018-11-06 19:49:15,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:49:15,793 INFO L93 Difference]: Finished difference Result 291085 states and 352937 transitions. [2018-11-06 19:49:15,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:49:15,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 954 [2018-11-06 19:49:15,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:49:15,966 INFO L225 Difference]: With dead ends: 291085 [2018-11-06 19:49:15,967 INFO L226 Difference]: Without dead ends: 164667 [2018-11-06 19:49:16,032 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:49:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164667 states. [2018-11-06 19:49:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164667 to 157836. [2018-11-06 19:49:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157836 states. [2018-11-06 19:49:17,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157836 states to 157836 states and 188439 transitions. [2018-11-06 19:49:17,385 INFO L78 Accepts]: Start accepts. Automaton has 157836 states and 188439 transitions. Word has length 954 [2018-11-06 19:49:17,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:49:17,387 INFO L480 AbstractCegarLoop]: Abstraction has 157836 states and 188439 transitions. [2018-11-06 19:49:17,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:49:17,387 INFO L276 IsEmpty]: Start isEmpty. Operand 157836 states and 188439 transitions. [2018-11-06 19:49:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1012 [2018-11-06 19:49:17,404 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:49:17,405 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:49:17,405 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:49:17,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:49:17,406 INFO L82 PathProgramCache]: Analyzing trace with hash 2063917265, now seen corresponding path program 1 times [2018-11-06 19:49:17,406 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:49:17,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:49:17,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:49:17,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:49:17,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:49:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:49:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2018-11-06 19:49:19,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:49:19,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:49:19,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:49:19,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:49:19,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:49:19,208 INFO L87 Difference]: Start difference. First operand 157836 states and 188439 transitions. Second operand 3 states. [2018-11-06 19:49:31,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:49:31,232 INFO L93 Difference]: Finished difference Result 422306 states and 502551 transitions. [2018-11-06 19:49:31,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:49:31,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1011 [2018-11-06 19:49:31,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:49:31,538 INFO L225 Difference]: With dead ends: 422306 [2018-11-06 19:49:31,538 INFO L226 Difference]: Without dead ends: 265838 [2018-11-06 19:49:31,612 INFO L604 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 [2018-11-06 19:49:31,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265838 states. [2018-11-06 19:49:33,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265838 to 265768. [2018-11-06 19:49:33,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265768 states. [2018-11-06 19:49:35,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265768 states to 265768 states and 303504 transitions. [2018-11-06 19:49:35,338 INFO L78 Accepts]: Start accepts. Automaton has 265768 states and 303504 transitions. Word has length 1011 [2018-11-06 19:49:35,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:49:35,339 INFO L480 AbstractCegarLoop]: Abstraction has 265768 states and 303504 transitions. [2018-11-06 19:49:35,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:49:35,339 INFO L276 IsEmpty]: Start isEmpty. Operand 265768 states and 303504 transitions. [2018-11-06 19:49:35,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1098 [2018-11-06 19:49:35,361 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:49:35,362 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:49:35,363 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:49:35,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:49:35,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1492698613, now seen corresponding path program 1 times [2018-11-06 19:49:35,364 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:49:35,364 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:49:35,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:49:35,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:49:35,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:49:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:49:37,593 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2018-11-06 19:49:37,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:49:37,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:49:37,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:49:37,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:49:37,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:49:37,595 INFO L87 Difference]: Start difference. First operand 265768 states and 303504 transitions. Second operand 4 states. [2018-11-06 19:49:54,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:49:54,769 INFO L93 Difference]: Finished difference Result 638224 states and 734816 transitions. [2018-11-06 19:49:54,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:49:54,770 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1097 [2018-11-06 19:49:54,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:49:55,209 INFO L225 Difference]: With dead ends: 638224 [2018-11-06 19:49:55,209 INFO L226 Difference]: Without dead ends: 373824 [2018-11-06 19:49:56,842 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:49:57,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373824 states. [2018-11-06 19:50:01,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373824 to 373685. [2018-11-06 19:50:01,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373685 states. [2018-11-06 19:50:01,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373685 states to 373685 states and 417148 transitions. [2018-11-06 19:50:01,748 INFO L78 Accepts]: Start accepts. Automaton has 373685 states and 417148 transitions. Word has length 1097 [2018-11-06 19:50:01,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:50:01,749 INFO L480 AbstractCegarLoop]: Abstraction has 373685 states and 417148 transitions. [2018-11-06 19:50:01,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:50:01,749 INFO L276 IsEmpty]: Start isEmpty. Operand 373685 states and 417148 transitions. [2018-11-06 19:50:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1214 [2018-11-06 19:50:01,783 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:50:01,784 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:50:01,784 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:50:01,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:50:01,785 INFO L82 PathProgramCache]: Analyzing trace with hash 957023368, now seen corresponding path program 1 times [2018-11-06 19:50:01,785 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:50:01,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:50:01,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:50:01,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:50:01,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:50:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:50:05,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 760 proven. 0 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2018-11-06 19:50:05,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:50:05,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:50:05,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:50:05,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:50:05,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:50:05,450 INFO L87 Difference]: Start difference. First operand 373685 states and 417148 transitions. Second operand 4 states. Received shutdown request... [2018-11-06 19:50:17,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:50:17,808 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 19:50:17,813 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 19:50:17,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:50:17 BoogieIcfgContainer [2018-11-06 19:50:17,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 19:50:17,814 INFO L168 Benchmark]: Toolchain (without parser) took 231171.57 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 659.9 MB. Max. memory is 7.1 GB. [2018-11-06 19:50:17,816 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. [2018-11-06 19:50:17,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3476.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. [2018-11-06 19:50:17,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 1002.04 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 854.1 MB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. [2018-11-06 19:50:17,818 INFO L168 Benchmark]: Boogie Preprocessor took 721.86 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 99.5 MB). Peak memory consumption was 99.5 MB. Max. memory is 7.1 GB. [2018-11-06 19:50:17,819 INFO L168 Benchmark]: RCFGBuilder took 16864.08 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 294.6 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -399.8 MB). Peak memory consumption was 847.1 MB. Max. memory is 7.1 GB. [2018-11-06 19:50:17,820 INFO L168 Benchmark]: TraceAbstraction took 209100.44 ms. Allocated memory was 2.7 GB in the beginning and 4.5 GB in the end (delta: 1.8 GB). Free memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 550.0 MB. Max. memory is 7.1 GB. [2018-11-06 19:50:17,825 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 3476.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1002.04 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 854.1 MB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 721.86 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 99.5 MB). Peak memory consumption was 99.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16864.08 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 294.6 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -399.8 MB). Peak memory consumption was 847.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209100.44 ms. Allocated memory was 2.7 GB in the beginning and 4.5 GB in the end (delta: 1.8 GB). Free memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 550.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 58). Cancelled while BasicCegarLoop was constructing difference of abstraction (373685states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (66130 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 208.9s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 178.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16382 SDtfs, 43109 SDslu, 9220 SDs, 0 SdLazy, 82625 SolverSat, 23037 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 136.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 19 SyntacticMatches, 14 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=373685occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 14.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 104067 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 6397 NumberOfCodeBlocks, 6397 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 6386 ConstructedInterpolants, 0 QuantifiedInterpolants, 13090732 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 4759/4759 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown