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_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 21:58:02,817 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 21:58:02,819 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 21:58:02,831 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 21:58:02,832 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 21:58:02,833 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 21:58:02,834 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 21:58:02,838 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 21:58:02,841 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 21:58:02,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 21:58:02,842 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 21:58:02,844 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 21:58:02,845 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 21:58:02,846 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 21:58:02,847 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 21:58:02,851 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 21:58:02,852 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 21:58:02,857 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 21:58:02,862 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 21:58:02,869 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 21:58:02,870 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 21:58:02,872 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 21:58:02,878 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-06 21:58:02,893 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 21:58:02,922 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 21:58:02,923 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 21:58:02,923 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 21:58:02,924 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 21:58:02,925 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 21:58:02,925 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 21:58:02,925 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 21:58:02,926 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 21:58:02,926 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 21:58:02,926 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 21:58:02,926 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 21:58:02,926 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 21:58:02,927 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 21:58:02,927 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 21:58:02,927 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 21:58:02,927 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 21:58:02,927 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 21:58:02,928 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 21:58:02,928 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 21:58:02,928 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 21:58:02,928 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 21:58:02,928 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 21:58:02,929 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 21:58:02,929 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 21:58:02,929 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 21:58:02,929 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 21:58:02,929 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 21:58:02,929 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 21:58:02,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 21:58:02,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 21:58:02,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 21:58:02,991 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 21:58:02,991 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 21:58:02,992 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label15_true-unreach-call.c [2018-11-06 21:58:03,050 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3f2bbf5/f7d5a8e4d1a24617bb3353dc6823bc0d/FLAGd5c74bb29 [2018-11-06 21:58:03,995 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 21:58:03,996 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label15_true-unreach-call.c [2018-11-06 21:58:04,046 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3f2bbf5/f7d5a8e4d1a24617bb3353dc6823bc0d/FLAGd5c74bb29 [2018-11-06 21:58:04,061 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3f2bbf5/f7d5a8e4d1a24617bb3353dc6823bc0d [2018-11-06 21:58:04,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 21:58:04,076 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 21:58:04,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 21:58:04,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 21:58:04,082 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 21:58:04,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:04" (1/1) ... [2018-11-06 21:58:04,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b330f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04, skipping insertion in model container [2018-11-06 21:58:04,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:04" (1/1) ... [2018-11-06 21:58:04,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 21:58:04,344 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 21:58:06,323 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:58:06,328 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 21:58:07,398 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:58:07,457 INFO L193 MainTranslator]: Completed translation [2018-11-06 21:58:07,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07 WrapperNode [2018-11-06 21:58:07,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 21:58:07,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 21:58:07,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 21:58:07,460 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 21:58:07,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07" (1/1) ... [2018-11-06 21:58:07,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07" (1/1) ... [2018-11-06 21:58:08,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 21:58:08,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 21:58:08,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 21:58:08,470 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 21:58:08,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07" (1/1) ... [2018-11-06 21:58:08,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07" (1/1) ... [2018-11-06 21:58:08,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07" (1/1) ... [2018-11-06 21:58:08,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07" (1/1) ... [2018-11-06 21:58:08,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07" (1/1) ... [2018-11-06 21:58:08,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07" (1/1) ... [2018-11-06 21:58:09,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07" (1/1) ... [2018-11-06 21:58:09,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 21:58:09,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 21:58:09,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 21:58:09,230 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 21:58:09,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07" (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 21:58:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 21:58:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 21:58:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 21:58:26,594 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 21:58:26,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:26 BoogieIcfgContainer [2018-11-06 21:58:26,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 21:58:26,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 21:58:26,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 21:58:26,598 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 21:58:26,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:04" (1/3) ... [2018-11-06 21:58:26,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b792f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:26, skipping insertion in model container [2018-11-06 21:58:26,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:07" (2/3) ... [2018-11-06 21:58:26,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b792f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:26, skipping insertion in model container [2018-11-06 21:58:26,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:26" (3/3) ... [2018-11-06 21:58:26,604 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label15_true-unreach-call.c [2018-11-06 21:58:26,616 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 21:58:26,631 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 21:58:26,649 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 21:58:26,733 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 21:58:26,734 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 21:58:26,734 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 21:58:26,734 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 21:58:26,734 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 21:58:26,735 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 21:58:26,735 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 21:58:26,735 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 21:58:26,735 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 21:58:26,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-11-06 21:58:26,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-06 21:58:26,791 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:58:26,793 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:58:26,795 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:58:26,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:58:26,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1281577798, now seen corresponding path program 1 times [2018-11-06 21:58:26,804 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:58:26,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:58:26,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:58:26,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:58:26,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:58:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:58:27,319 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 21:58:27,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:58:27,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:58:27,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:58:27,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:58:27,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:58:27,345 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-11-06 21:58:45,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:58:45,513 INFO L93 Difference]: Finished difference Result 6324 states and 12081 transitions. [2018-11-06 21:58:45,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:58:45,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2018-11-06 21:58:45,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:58:45,570 INFO L225 Difference]: With dead ends: 6324 [2018-11-06 21:58:45,570 INFO L226 Difference]: Without dead ends: 4568 [2018-11-06 21:58:45,580 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 21:58:45,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4568 states. [2018-11-06 21:58:45,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4568 to 4563. [2018-11-06 21:58:45,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4563 states. [2018-11-06 21:58:45,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4563 states to 4563 states and 7487 transitions. [2018-11-06 21:58:45,784 INFO L78 Accepts]: Start accepts. Automaton has 4563 states and 7487 transitions. Word has length 59 [2018-11-06 21:58:45,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:58:45,785 INFO L480 AbstractCegarLoop]: Abstraction has 4563 states and 7487 transitions. [2018-11-06 21:58:45,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:58:45,785 INFO L276 IsEmpty]: Start isEmpty. Operand 4563 states and 7487 transitions. [2018-11-06 21:58:45,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-06 21:58:45,791 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:58:45,792 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 21:58:45,792 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:58:45,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:58:45,793 INFO L82 PathProgramCache]: Analyzing trace with hash -336458499, now seen corresponding path program 1 times [2018-11-06 21:58:45,793 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:58:45,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:58:45,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:58:45,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:58:45,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:58:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:58:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:58:46,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:58:46,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:58:46,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:58:46,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:58:46,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:58:46,158 INFO L87 Difference]: Start difference. First operand 4563 states and 7487 transitions. Second operand 4 states. [2018-11-06 21:59:08,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:59:08,362 INFO L93 Difference]: Finished difference Result 17544 states and 29003 transitions. [2018-11-06 21:59:08,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:59:08,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2018-11-06 21:59:08,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:59:08,431 INFO L225 Difference]: With dead ends: 17544 [2018-11-06 21:59:08,431 INFO L226 Difference]: Without dead ends: 12983 [2018-11-06 21:59:08,440 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 21:59:08,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12983 states. [2018-11-06 21:59:08,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12983 to 8662. [2018-11-06 21:59:08,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8662 states. [2018-11-06 21:59:08,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8662 states to 8662 states and 13841 transitions. [2018-11-06 21:59:08,641 INFO L78 Accepts]: Start accepts. Automaton has 8662 states and 13841 transitions. Word has length 137 [2018-11-06 21:59:08,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:59:08,641 INFO L480 AbstractCegarLoop]: Abstraction has 8662 states and 13841 transitions. [2018-11-06 21:59:08,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:59:08,642 INFO L276 IsEmpty]: Start isEmpty. Operand 8662 states and 13841 transitions. [2018-11-06 21:59:08,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-06 21:59:08,654 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:59:08,654 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:08,654 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:59:08,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:59:08,655 INFO L82 PathProgramCache]: Analyzing trace with hash 159540445, now seen corresponding path program 1 times [2018-11-06 21:59:08,655 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:59:08,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:59:08,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:08,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:59:08,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:59:09,025 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:59:09,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:59:09,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:59:09,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:59:09,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:59:09,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:59:09,028 INFO L87 Difference]: Start difference. First operand 8662 states and 13841 transitions. Second operand 4 states. [2018-11-06 21:59:24,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:59:24,657 INFO L93 Difference]: Finished difference Result 33991 states and 54526 transitions. [2018-11-06 21:59:24,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:59:24,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2018-11-06 21:59:24,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:59:24,742 INFO L225 Difference]: With dead ends: 33991 [2018-11-06 21:59:24,742 INFO L226 Difference]: Without dead ends: 25331 [2018-11-06 21:59:24,766 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 21:59:24,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25331 states. [2018-11-06 21:59:25,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25331 to 25321. [2018-11-06 21:59:25,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25321 states. [2018-11-06 21:59:25,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25321 states to 25321 states and 34467 transitions. [2018-11-06 21:59:25,497 INFO L78 Accepts]: Start accepts. Automaton has 25321 states and 34467 transitions. Word has length 157 [2018-11-06 21:59:25,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:59:25,499 INFO L480 AbstractCegarLoop]: Abstraction has 25321 states and 34467 transitions. [2018-11-06 21:59:25,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:59:25,499 INFO L276 IsEmpty]: Start isEmpty. Operand 25321 states and 34467 transitions. [2018-11-06 21:59:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-11-06 21:59:25,502 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:59:25,503 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:25,503 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:59:25,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:59:25,503 INFO L82 PathProgramCache]: Analyzing trace with hash -706708730, now seen corresponding path program 1 times [2018-11-06 21:59:25,504 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:59:25,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:59:25,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:25,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:59:25,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:59:25,834 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-06 21:59:26,184 WARN L179 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-11-06 21:59:26,688 WARN L179 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-11-06 21:59:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:59:26,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:59:26,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 21:59:26,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 21:59:26,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 21:59:26,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 21:59:26,755 INFO L87 Difference]: Start difference. First operand 25321 states and 34467 transitions. Second operand 6 states. [2018-11-06 21:59:51,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:59:51,030 INFO L93 Difference]: Finished difference Result 82151 states and 109854 transitions. [2018-11-06 21:59:51,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 21:59:51,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2018-11-06 21:59:51,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:59:51,138 INFO L225 Difference]: With dead ends: 82151 [2018-11-06 21:59:51,138 INFO L226 Difference]: Without dead ends: 56832 [2018-11-06 21:59:51,180 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-11-06 21:59:51,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56832 states. [2018-11-06 21:59:52,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56832 to 55390. [2018-11-06 21:59:52,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55390 states. [2018-11-06 21:59:52,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55390 states to 55390 states and 72762 transitions. [2018-11-06 21:59:52,288 INFO L78 Accepts]: Start accepts. Automaton has 55390 states and 72762 transitions. Word has length 164 [2018-11-06 21:59:52,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:59:52,288 INFO L480 AbstractCegarLoop]: Abstraction has 55390 states and 72762 transitions. [2018-11-06 21:59:52,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 21:59:52,288 INFO L276 IsEmpty]: Start isEmpty. Operand 55390 states and 72762 transitions. [2018-11-06 21:59:52,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2018-11-06 21:59:52,294 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:59:52,294 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:52,295 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:59:52,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:59:52,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1700977312, now seen corresponding path program 1 times [2018-11-06 21:59:52,295 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:59:52,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:59:52,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:52,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:59:52,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:59:52,778 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:59:52,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:59:52,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:59:52,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:59:52,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:59:52,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:59:52,781 INFO L87 Difference]: Start difference. First operand 55390 states and 72762 transitions. Second operand 4 states. [2018-11-06 22:00:08,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:00:08,490 INFO L93 Difference]: Finished difference Result 139616 states and 182676 transitions. [2018-11-06 22:00:08,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:00:08,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 295 [2018-11-06 22:00:08,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:00:08,632 INFO L225 Difference]: With dead ends: 139616 [2018-11-06 22:00:08,632 INFO L226 Difference]: Without dead ends: 78762 [2018-11-06 22:00:08,695 INFO L604 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 [2018-11-06 22:00:08,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78762 states. [2018-11-06 22:00:09,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78762 to 78629. [2018-11-06 22:00:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78629 states. [2018-11-06 22:00:09,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78629 states to 78629 states and 97485 transitions. [2018-11-06 22:00:09,568 INFO L78 Accepts]: Start accepts. Automaton has 78629 states and 97485 transitions. Word has length 295 [2018-11-06 22:00:09,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:00:09,568 INFO L480 AbstractCegarLoop]: Abstraction has 78629 states and 97485 transitions. [2018-11-06 22:00:09,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:00:09,569 INFO L276 IsEmpty]: Start isEmpty. Operand 78629 states and 97485 transitions. [2018-11-06 22:00:09,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2018-11-06 22:00:09,584 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:00:09,585 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 22:00:09,585 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:00:09,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:00:09,586 INFO L82 PathProgramCache]: Analyzing trace with hash -358381557, now seen corresponding path program 1 times [2018-11-06 22:00:09,586 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:00:09,586 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:00:09,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:00:09,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:00:09,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:00:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:00:10,323 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 512 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-06 22:00:10,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:00:10,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 22:00:10,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:00:10,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:00:10,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:00:10,327 INFO L87 Difference]: Start difference. First operand 78629 states and 97485 transitions. Second operand 4 states. [2018-11-06 22:00:23,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:00:23,242 INFO L93 Difference]: Finished difference Result 155888 states and 193590 transitions. [2018-11-06 22:00:23,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:00:23,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 603 [2018-11-06 22:00:23,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:00:23,332 INFO L225 Difference]: With dead ends: 155888 [2018-11-06 22:00:23,332 INFO L226 Difference]: Without dead ends: 78627 [2018-11-06 22:00:23,379 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:00:23,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78627 states. [2018-11-06 22:00:24,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78627 to 78619. [2018-11-06 22:00:24,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78619 states. [2018-11-06 22:00:24,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78619 states to 78619 states and 88182 transitions. [2018-11-06 22:00:24,128 INFO L78 Accepts]: Start accepts. Automaton has 78619 states and 88182 transitions. Word has length 603 [2018-11-06 22:00:24,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:00:24,129 INFO L480 AbstractCegarLoop]: Abstraction has 78619 states and 88182 transitions. [2018-11-06 22:00:24,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:00:24,129 INFO L276 IsEmpty]: Start isEmpty. Operand 78619 states and 88182 transitions. [2018-11-06 22:00:24,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2018-11-06 22:00:24,145 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:00:24,146 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 22:00:24,146 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:00:24,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:00:24,147 INFO L82 PathProgramCache]: Analyzing trace with hash -5337463, now seen corresponding path program 1 times [2018-11-06 22:00:24,147 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:00:24,147 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:00:24,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:00:24,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:00:24,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:00:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:00:25,125 WARN L179 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-11-06 22:00:25,802 WARN L179 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-11-06 22:00:26,894 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 419 proven. 4 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-06 22:00:26,895 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:00:26,895 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:00:26,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:00:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:00:27,123 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:00:27,530 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 423 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-06 22:00:27,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:00:27,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 22:00:27,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:00:27,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:00:27,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:00:27,553 INFO L87 Difference]: Start difference. First operand 78619 states and 88182 transitions. Second operand 5 states. [2018-11-06 22:00:46,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:00:46,364 INFO L93 Difference]: Finished difference Result 174997 states and 195231 transitions. [2018-11-06 22:00:46,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 22:00:46,365 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 610 [2018-11-06 22:00:46,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:00:46,509 INFO L225 Difference]: With dead ends: 174997 [2018-11-06 22:00:46,509 INFO L226 Difference]: Without dead ends: 88173 [2018-11-06 22:00:46,562 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 610 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 22:00:46,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88173 states. [2018-11-06 22:00:47,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88173 to 86805. [2018-11-06 22:00:47,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86805 states. [2018-11-06 22:00:47,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86805 states to 86805 states and 92924 transitions. [2018-11-06 22:00:47,430 INFO L78 Accepts]: Start accepts. Automaton has 86805 states and 92924 transitions. Word has length 610 [2018-11-06 22:00:47,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:00:47,431 INFO L480 AbstractCegarLoop]: Abstraction has 86805 states and 92924 transitions. [2018-11-06 22:00:47,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:00:47,431 INFO L276 IsEmpty]: Start isEmpty. Operand 86805 states and 92924 transitions. [2018-11-06 22:00:47,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2018-11-06 22:00:47,443 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:00:47,444 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 22:00:47,444 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:00:47,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:00:47,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1094554062, now seen corresponding path program 1 times [2018-11-06 22:00:47,445 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:00:47,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:00:47,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:00:47,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:00:47,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:00:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:00:48,459 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-11-06 22:00:48,892 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2018-11-06 22:00:48,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:00:48,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 22:00:48,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 22:00:48,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 22:00:48,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 22:00:48,895 INFO L87 Difference]: Start difference. First operand 86805 states and 92924 transitions. Second operand 3 states. [2018-11-06 22:00:58,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:00:58,199 INFO L93 Difference]: Finished difference Result 236479 states and 254054 transitions. [2018-11-06 22:00:58,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 22:00:58,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 855 [2018-11-06 22:00:58,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:00:58,394 INFO L225 Difference]: With dead ends: 236479 [2018-11-06 22:00:58,394 INFO L226 Difference]: Without dead ends: 151042 [2018-11-06 22:00:58,444 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 22:00:58,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151042 states. [2018-11-06 22:00:59,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151042 to 151011. [2018-11-06 22:00:59,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151011 states. [2018-11-06 22:00:59,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151011 states to 151011 states and 161210 transitions. [2018-11-06 22:00:59,953 INFO L78 Accepts]: Start accepts. Automaton has 151011 states and 161210 transitions. Word has length 855 [2018-11-06 22:00:59,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:00:59,954 INFO L480 AbstractCegarLoop]: Abstraction has 151011 states and 161210 transitions. [2018-11-06 22:00:59,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 22:00:59,954 INFO L276 IsEmpty]: Start isEmpty. Operand 151011 states and 161210 transitions. [2018-11-06 22:00:59,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1154 [2018-11-06 22:00:59,988 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:00:59,989 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:00:59,989 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:00:59,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:00:59,990 INFO L82 PathProgramCache]: Analyzing trace with hash -325758145, now seen corresponding path program 1 times [2018-11-06 22:00:59,990 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:00:59,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:00:59,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:00:59,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:00:59,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:01:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:01:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1086 backedges. 780 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-11-06 22:01:01,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:01:01,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 22:01:01,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:01:01,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:01:01,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:01:01,930 INFO L87 Difference]: Start difference. First operand 151011 states and 161210 transitions. Second operand 4 states. [2018-11-06 22:01:14,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:01:14,170 INFO L93 Difference]: Finished difference Result 386723 states and 416035 transitions. [2018-11-06 22:01:14,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:01:14,171 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1153 [2018-11-06 22:01:14,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:01:14,438 INFO L225 Difference]: With dead ends: 386723 [2018-11-06 22:01:14,438 INFO L226 Difference]: Without dead ends: 237080 [2018-11-06 22:01:14,516 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 22:01:14,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237080 states. [2018-11-06 22:01:17,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237080 to 223404. [2018-11-06 22:01:17,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223404 states. [2018-11-06 22:01:17,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223404 states to 223404 states and 237426 transitions. [2018-11-06 22:01:17,829 INFO L78 Accepts]: Start accepts. Automaton has 223404 states and 237426 transitions. Word has length 1153 [2018-11-06 22:01:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:01:17,831 INFO L480 AbstractCegarLoop]: Abstraction has 223404 states and 237426 transitions. [2018-11-06 22:01:17,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:01:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 223404 states and 237426 transitions. [2018-11-06 22:01:17,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1500 [2018-11-06 22:01:17,890 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:01:17,891 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 22:01:17,891 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:01:17,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:01:17,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1089092172, now seen corresponding path program 1 times [2018-11-06 22:01:17,891 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:01:17,892 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:01:17,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:01:17,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:01:17,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:01:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:01:20,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2101 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 1871 trivial. 0 not checked. [2018-11-06 22:01:20,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:01:20,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 22:01:20,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 22:01:20,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 22:01:20,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 22:01:20,883 INFO L87 Difference]: Start difference. First operand 223404 states and 237426 transitions. Second operand 3 states. [2018-11-06 22:01:30,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:01:30,835 INFO L93 Difference]: Finished difference Result 528767 states and 563038 transitions. [2018-11-06 22:01:30,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 22:01:30,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1499 [2018-11-06 22:01:30,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:01:31,194 INFO L225 Difference]: With dead ends: 528767 [2018-11-06 22:01:31,195 INFO L226 Difference]: Without dead ends: 306731 [2018-11-06 22:01:31,319 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 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 22:01:31,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306731 states. [2018-11-06 22:01:35,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306731 to 273945. [2018-11-06 22:01:35,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273945 states. [2018-11-06 22:01:37,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273945 states to 273945 states and 289418 transitions. [2018-11-06 22:01:37,077 INFO L78 Accepts]: Start accepts. Automaton has 273945 states and 289418 transitions. Word has length 1499 [2018-11-06 22:01:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:01:37,078 INFO L480 AbstractCegarLoop]: Abstraction has 273945 states and 289418 transitions. [2018-11-06 22:01:37,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 22:01:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 273945 states and 289418 transitions. [2018-11-06 22:01:37,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2082 [2018-11-06 22:01:37,215 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:01:37,216 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:37,217 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:01:37,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:01:37,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1125908352, now seen corresponding path program 1 times [2018-11-06 22:01:37,217 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:01:37,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:01:37,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:01:37,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:01:37,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:01:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-11-06 22:01:48,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3034 backedges. 1686 proven. 0 refuted. 0 times theorem prover too weak. 1348 trivial. 0 not checked. [2018-11-06 22:01:48,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:01:48,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 22:01:48,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:01:48,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:01:48,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:01:48,698 INFO L87 Difference]: Start difference. First operand 273945 states and 289418 transitions. Second operand 5 states. [2018-11-06 22:01:48,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-06 22:01:48,699 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 22:01:48,705 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 22:01:48,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:01:48 BoogieIcfgContainer [2018-11-06 22:01:48,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:01:48,706 INFO L168 Benchmark]: Toolchain (without parser) took 224631.56 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-06 22:01:48,707 INFO L168 Benchmark]: CDTParser took 0.21 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 22:01:48,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3382.30 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: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2018-11-06 22:01:48,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 1010.00 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 849.9 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 98.9 MB. Max. memory is 7.1 GB. [2018-11-06 22:01:48,709 INFO L168 Benchmark]: Boogie Preprocessor took 759.21 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: 99.1 MB). Peak memory consumption was 99.1 MB. Max. memory is 7.1 GB. [2018-11-06 22:01:48,710 INFO L168 Benchmark]: RCFGBuilder took 17365.17 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 299.9 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -405.7 MB). Peak memory consumption was 824.2 MB. Max. memory is 7.1 GB. [2018-11-06 22:01:48,711 INFO L168 Benchmark]: TraceAbstraction took 202109.92 ms. Allocated memory was 2.7 GB in the beginning and 4.6 GB in the end (delta: 1.9 GB). Free memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: -436.2 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-06 22:01:48,716 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3382.30 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: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1010.00 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 849.9 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 98.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 759.21 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: 99.1 MB). Peak memory consumption was 99.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17365.17 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 299.9 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -405.7 MB). Peak memory consumption was 824.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202109.92 ms. Allocated memory was 2.7 GB in the beginning and 4.6 GB in the end (delta: 1.9 GB). Free memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: -436.2 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was constructing difference of abstraction (273945states) and FLOYD_HOARE automaton (currently 2 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 201.9s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 161.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15001 SDtfs, 39021 SDslu, 3686 SDs, 0 SdLazy, 81698 SolverSat, 19657 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 128.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 663 GetRequests, 627 SyntacticMatches, 9 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273945occurred 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: 15.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 53780 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 8223 NumberOfCodeBlocks, 8223 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 8211 ConstructedInterpolants, 0 QuantifiedInterpolants, 19509699 SizeOfPredicates, 5 NumberOfNonLiveVariables, 721 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 8735/8739 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown