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/Problem03_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:52:48,834 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:52:48,836 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:52:48,847 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:52:48,848 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:52:48,849 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:52:48,850 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:52:48,852 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:52:48,854 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:52:48,855 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:52:48,856 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:52:48,856 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:52:48,857 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:52:48,858 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:52:48,859 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:52:48,860 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:52:48,861 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:52:48,863 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:52:48,865 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:52:48,867 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:52:48,868 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:52:48,870 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:52:48,872 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 19:52:48,873 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 19:52:48,873 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 19:52:48,874 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 19:52:48,875 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 19:52:48,876 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 19:52:48,876 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 19:52:48,878 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 19:52:48,878 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 19:52:48,879 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 19:52:48,881 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 19:52:48,903 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:52:48,903 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:52:48,906 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:52:48,906 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:52:48,906 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:52:48,907 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:52:48,908 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:52:48,908 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:52:48,908 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:52:48,908 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:52:48,908 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:52:48,909 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:52:48,909 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:52:48,909 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:52:48,909 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:52:48,909 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:52:48,911 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:52:48,911 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:52:48,911 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:52:48,911 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:52:48,912 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:52:48,912 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:52:48,912 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:52:48,912 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:52:48,912 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:52:48,913 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:52:48,913 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:52:48,913 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:52:48,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:52:48,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:52:48,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:52:48,997 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:52:48,997 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:52:48,998 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label14_true-unreach-call.c [2018-11-06 19:52:49,052 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0790eb74/fd1879d97dbb4a579c721f34d072fbb6/FLAG5b0553f70 [2018-11-06 19:52:49,683 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:52:49,684 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label14_true-unreach-call.c [2018-11-06 19:52:49,702 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0790eb74/fd1879d97dbb4a579c721f34d072fbb6/FLAG5b0553f70 [2018-11-06 19:52:49,718 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0790eb74/fd1879d97dbb4a579c721f34d072fbb6 [2018-11-06 19:52:49,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:52:49,731 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:52:49,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:52:49,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:52:49,736 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:52:49,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:52:49" (1/1) ... [2018-11-06 19:52:49,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b5474c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:49, skipping insertion in model container [2018-11-06 19:52:49,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:52:49" (1/1) ... [2018-11-06 19:52:49,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:52:49,837 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:52:50,597 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:52:50,603 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:52:50,824 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:52:50,847 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:52:50,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50 WrapperNode [2018-11-06 19:52:50,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:52:50,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:52:50,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:52:50,849 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:52:50,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50" (1/1) ... [2018-11-06 19:52:51,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50" (1/1) ... [2018-11-06 19:52:51,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:52:51,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:52:51,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:52:51,132 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:52:51,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50" (1/1) ... [2018-11-06 19:52:51,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50" (1/1) ... [2018-11-06 19:52:51,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50" (1/1) ... [2018-11-06 19:52:51,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50" (1/1) ... [2018-11-06 19:52:51,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50" (1/1) ... [2018-11-06 19:52:51,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50" (1/1) ... [2018-11-06 19:52:51,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50" (1/1) ... [2018-11-06 19:52:51,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:52:51,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:52:51,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:52:51,256 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:52:51,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50" (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 19:52:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:52:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:52:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:52:56,692 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:52:56,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:52:56 BoogieIcfgContainer [2018-11-06 19:52:56,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:52:56,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:52:56,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:52:56,697 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:52:56,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:52:49" (1/3) ... [2018-11-06 19:52:56,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360c492c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:52:56, skipping insertion in model container [2018-11-06 19:52:56,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:50" (2/3) ... [2018-11-06 19:52:56,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360c492c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:52:56, skipping insertion in model container [2018-11-06 19:52:56,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:52:56" (3/3) ... [2018-11-06 19:52:56,701 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label14_true-unreach-call.c [2018-11-06 19:52:56,711 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:52:56,719 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:52:56,737 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:52:56,775 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:52:56,776 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:52:56,776 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:52:56,776 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:52:56,776 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:52:56,777 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:52:56,777 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:52:56,777 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:52:56,777 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:52:56,804 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2018-11-06 19:52:56,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-11-06 19:52:56,831 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:52:56,833 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:56,836 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:52:56,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:52:56,843 INFO L82 PathProgramCache]: Analyzing trace with hash -102357910, now seen corresponding path program 1 times [2018-11-06 19:52:56,845 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:52:56,845 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:52:56,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:52:56,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:52:56,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:52:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:52:57,874 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 19:52:57,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:52:57,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:52:57,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:52:57,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:52:57,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:52:57,905 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2018-11-06 19:53:01,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:01,856 INFO L93 Difference]: Finished difference Result 1072 states and 1917 transitions. [2018-11-06 19:53:01,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:53:01,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2018-11-06 19:53:01,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:01,881 INFO L225 Difference]: With dead ends: 1072 [2018-11-06 19:53:01,881 INFO L226 Difference]: Without dead ends: 762 [2018-11-06 19:53:01,886 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 19:53:01,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2018-11-06 19:53:01,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 518. [2018-11-06 19:53:01,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2018-11-06 19:53:02,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 855 transitions. [2018-11-06 19:53:02,003 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 855 transitions. Word has length 171 [2018-11-06 19:53:02,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:02,004 INFO L480 AbstractCegarLoop]: Abstraction has 518 states and 855 transitions. [2018-11-06 19:53:02,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:53:02,007 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 855 transitions. [2018-11-06 19:53:02,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-11-06 19:53:02,015 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:02,022 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:53:02,022 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:02,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:02,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1343385639, now seen corresponding path program 1 times [2018-11-06 19:53:02,023 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:02,023 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:02,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:02,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:02,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:02,323 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:53:02,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:02,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:53:02,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:53:02,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:53:02,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:53:02,328 INFO L87 Difference]: Start difference. First operand 518 states and 855 transitions. Second operand 4 states. [2018-11-06 19:53:05,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:05,568 INFO L93 Difference]: Finished difference Result 1918 states and 3253 transitions. [2018-11-06 19:53:05,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:53:05,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2018-11-06 19:53:05,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:05,578 INFO L225 Difference]: With dead ends: 1918 [2018-11-06 19:53:05,578 INFO L226 Difference]: Without dead ends: 1402 [2018-11-06 19:53:05,581 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 19:53:05,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2018-11-06 19:53:05,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 933. [2018-11-06 19:53:05,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2018-11-06 19:53:05,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1472 transitions. [2018-11-06 19:53:05,618 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1472 transitions. Word has length 177 [2018-11-06 19:53:05,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:05,618 INFO L480 AbstractCegarLoop]: Abstraction has 933 states and 1472 transitions. [2018-11-06 19:53:05,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:53:05,618 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1472 transitions. [2018-11-06 19:53:05,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-11-06 19:53:05,622 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:05,622 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:53:05,623 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:05,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:05,623 INFO L82 PathProgramCache]: Analyzing trace with hash -567522293, now seen corresponding path program 1 times [2018-11-06 19:53:05,623 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:05,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:05,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:05,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:05,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:53:05,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:05,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 19:53:05,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:53:05,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:53:05,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:05,713 INFO L87 Difference]: Start difference. First operand 933 states and 1472 transitions. Second operand 3 states. [2018-11-06 19:53:08,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:08,261 INFO L93 Difference]: Finished difference Result 2699 states and 4315 transitions. [2018-11-06 19:53:08,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:53:08,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2018-11-06 19:53:08,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:08,271 INFO L225 Difference]: With dead ends: 2699 [2018-11-06 19:53:08,272 INFO L226 Difference]: Without dead ends: 1768 [2018-11-06 19:53:08,274 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:08,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2018-11-06 19:53:08,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1751. [2018-11-06 19:53:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2018-11-06 19:53:08,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2699 transitions. [2018-11-06 19:53:08,313 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2699 transitions. Word has length 180 [2018-11-06 19:53:08,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:08,314 INFO L480 AbstractCegarLoop]: Abstraction has 1751 states and 2699 transitions. [2018-11-06 19:53:08,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:53:08,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2699 transitions. [2018-11-06 19:53:08,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-11-06 19:53:08,319 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:08,319 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-11-06 19:53:08,319 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:08,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:08,320 INFO L82 PathProgramCache]: Analyzing trace with hash -630849601, now seen corresponding path program 1 times [2018-11-06 19:53:08,320 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:08,320 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:08,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:08,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:08,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-06 19:53:08,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:08,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 19:53:08,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:53:08,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:53:08,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:08,463 INFO L87 Difference]: Start difference. First operand 1751 states and 2699 transitions. Second operand 3 states. [2018-11-06 19:53:09,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:09,917 INFO L93 Difference]: Finished difference Result 4329 states and 6639 transitions. [2018-11-06 19:53:09,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:53:09,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2018-11-06 19:53:09,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:09,930 INFO L225 Difference]: With dead ends: 4329 [2018-11-06 19:53:09,931 INFO L226 Difference]: Without dead ends: 2580 [2018-11-06 19:53:09,933 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:09,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2018-11-06 19:53:09,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2579. [2018-11-06 19:53:09,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2579 states. [2018-11-06 19:53:09,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 3884 transitions. [2018-11-06 19:53:09,982 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 3884 transitions. Word has length 188 [2018-11-06 19:53:09,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:09,982 INFO L480 AbstractCegarLoop]: Abstraction has 2579 states and 3884 transitions. [2018-11-06 19:53:09,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:53:09,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 3884 transitions. [2018-11-06 19:53:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-11-06 19:53:09,989 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:09,990 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2018-11-06 19:53:09,990 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:09,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:09,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1925347994, now seen corresponding path program 1 times [2018-11-06 19:53:09,990 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:09,991 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:09,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:09,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:09,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-06 19:53:10,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:10,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 19:53:10,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:53:10,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:53:10,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:10,143 INFO L87 Difference]: Start difference. First operand 2579 states and 3884 transitions. Second operand 3 states. [2018-11-06 19:53:10,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:10,941 INFO L93 Difference]: Finished difference Result 7713 states and 11623 transitions. [2018-11-06 19:53:10,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:53:10,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2018-11-06 19:53:10,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:10,968 INFO L225 Difference]: With dead ends: 7713 [2018-11-06 19:53:10,968 INFO L226 Difference]: Without dead ends: 5136 [2018-11-06 19:53:10,974 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:10,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5136 states. [2018-11-06 19:53:11,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5136 to 5133. [2018-11-06 19:53:11,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5133 states. [2018-11-06 19:53:11,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 7720 transitions. [2018-11-06 19:53:11,084 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 7720 transitions. Word has length 194 [2018-11-06 19:53:11,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:11,085 INFO L480 AbstractCegarLoop]: Abstraction has 5133 states and 7720 transitions. [2018-11-06 19:53:11,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:53:11,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 7720 transitions. [2018-11-06 19:53:11,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-11-06 19:53:11,095 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:11,095 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-11-06 19:53:11,095 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:11,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:11,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1582974829, now seen corresponding path program 1 times [2018-11-06 19:53:11,096 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:11,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:11,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:11,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:11,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-06 19:53:11,400 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:53:11,400 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:53:11,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:11,572 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:53:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-11-06 19:53:11,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:53:11,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2018-11-06 19:53:11,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:53:11,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:53:11,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:53:11,680 INFO L87 Difference]: Start difference. First operand 5133 states and 7720 transitions. Second operand 4 states. [2018-11-06 19:53:15,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:15,042 INFO L93 Difference]: Finished difference Result 20487 states and 30826 transitions. [2018-11-06 19:53:15,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:53:15,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 203 [2018-11-06 19:53:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:15,122 INFO L225 Difference]: With dead ends: 20487 [2018-11-06 19:53:15,122 INFO L226 Difference]: Without dead ends: 15356 [2018-11-06 19:53:15,137 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 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 19:53:15,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15356 states. [2018-11-06 19:53:15,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15356 to 10229. [2018-11-06 19:53:15,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10229 states. [2018-11-06 19:53:15,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 15363 transitions. [2018-11-06 19:53:15,390 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 15363 transitions. Word has length 203 [2018-11-06 19:53:15,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:15,390 INFO L480 AbstractCegarLoop]: Abstraction has 10229 states and 15363 transitions. [2018-11-06 19:53:15,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:53:15,390 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 15363 transitions. [2018-11-06 19:53:15,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-11-06 19:53:15,408 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:15,408 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:53:15,408 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:15,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:15,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1172652270, now seen corresponding path program 1 times [2018-11-06 19:53:15,409 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:15,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:15,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:15,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:15,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:15,933 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-11-06 19:53:15,984 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:53:15,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:15,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:53:15,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:53:15,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:53:15,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:53:15,993 INFO L87 Difference]: Start difference. First operand 10229 states and 15363 transitions. Second operand 5 states. [2018-11-06 19:53:18,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:18,916 INFO L93 Difference]: Finished difference Result 23029 states and 35010 transitions. [2018-11-06 19:53:18,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:53:18,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2018-11-06 19:53:18,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:18,952 INFO L225 Difference]: With dead ends: 23029 [2018-11-06 19:53:18,952 INFO L226 Difference]: Without dead ends: 12802 [2018-11-06 19:53:18,964 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:53:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12802 states. [2018-11-06 19:53:19,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12802 to 11045. [2018-11-06 19:53:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11045 states. [2018-11-06 19:53:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11045 states to 11045 states and 16559 transitions. [2018-11-06 19:53:19,173 INFO L78 Accepts]: Start accepts. Automaton has 11045 states and 16559 transitions. Word has length 211 [2018-11-06 19:53:19,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:19,174 INFO L480 AbstractCegarLoop]: Abstraction has 11045 states and 16559 transitions. [2018-11-06 19:53:19,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:53:19,174 INFO L276 IsEmpty]: Start isEmpty. Operand 11045 states and 16559 transitions. [2018-11-06 19:53:19,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-11-06 19:53:19,193 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:19,193 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 19:53:19,194 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:19,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:19,194 INFO L82 PathProgramCache]: Analyzing trace with hash 2121835886, now seen corresponding path program 1 times [2018-11-06 19:53:19,194 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:19,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:19,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:19,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:19,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:19,459 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-06 19:53:19,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:19,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:53:19,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:53:19,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:53:19,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:53:19,461 INFO L87 Difference]: Start difference. First operand 11045 states and 16559 transitions. Second operand 4 states. [2018-11-06 19:53:22,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:22,476 INFO L93 Difference]: Finished difference Result 41022 states and 61357 transitions. [2018-11-06 19:53:22,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:53:22,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 211 [2018-11-06 19:53:22,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:22,527 INFO L225 Difference]: With dead ends: 41022 [2018-11-06 19:53:22,527 INFO L226 Difference]: Without dead ends: 29979 [2018-11-06 19:53:22,548 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 19:53:22,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29979 states. [2018-11-06 19:53:22,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29979 to 20440. [2018-11-06 19:53:22,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-11-06 19:53:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 29051 transitions. [2018-11-06 19:53:22,926 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 29051 transitions. Word has length 211 [2018-11-06 19:53:22,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:22,926 INFO L480 AbstractCegarLoop]: Abstraction has 20440 states and 29051 transitions. [2018-11-06 19:53:22,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:53:22,927 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 29051 transitions. [2018-11-06 19:53:22,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-11-06 19:53:22,955 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:22,956 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-11-06 19:53:22,956 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:22,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:22,957 INFO L82 PathProgramCache]: Analyzing trace with hash -946118317, now seen corresponding path program 1 times [2018-11-06 19:53:22,957 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:22,957 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:22,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:22,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:22,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:23,114 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-06 19:53:23,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:23,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:53:23,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:53:23,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:53:23,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:23,116 INFO L87 Difference]: Start difference. First operand 20440 states and 29051 transitions. Second operand 3 states. [2018-11-06 19:53:25,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:25,272 INFO L93 Difference]: Finished difference Result 40906 states and 58154 transitions. [2018-11-06 19:53:25,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:53:25,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2018-11-06 19:53:25,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:25,306 INFO L225 Difference]: With dead ends: 40906 [2018-11-06 19:53:25,306 INFO L226 Difference]: Without dead ends: 20468 [2018-11-06 19:53:25,330 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:25,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20468 states. [2018-11-06 19:53:25,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20468 to 20440. [2018-11-06 19:53:25,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-11-06 19:53:25,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 27343 transitions. [2018-11-06 19:53:25,606 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 27343 transitions. Word has length 212 [2018-11-06 19:53:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:25,607 INFO L480 AbstractCegarLoop]: Abstraction has 20440 states and 27343 transitions. [2018-11-06 19:53:25,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:53:25,607 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 27343 transitions. [2018-11-06 19:53:25,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-06 19:53:25,633 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:25,634 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 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] [2018-11-06 19:53:25,634 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:25,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:25,634 INFO L82 PathProgramCache]: Analyzing trace with hash 964240011, now seen corresponding path program 1 times [2018-11-06 19:53:25,635 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:25,635 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:25,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:25,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:25,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:25,773 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-06 19:53:25,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:25,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:53:25,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:53:25,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:53:25,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:25,776 INFO L87 Difference]: Start difference. First operand 20440 states and 27343 transitions. Second operand 3 states. [2018-11-06 19:53:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:27,351 INFO L93 Difference]: Finished difference Result 57404 states and 76442 transitions. [2018-11-06 19:53:27,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:53:27,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2018-11-06 19:53:27,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:27,400 INFO L225 Difference]: With dead ends: 57404 [2018-11-06 19:53:27,400 INFO L226 Difference]: Without dead ends: 36966 [2018-11-06 19:53:27,425 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:27,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36966 states. [2018-11-06 19:53:27,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36966 to 36958. [2018-11-06 19:53:27,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36958 states. [2018-11-06 19:53:27,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36958 states to 36958 states and 44611 transitions. [2018-11-06 19:53:27,903 INFO L78 Accepts]: Start accepts. Automaton has 36958 states and 44611 transitions. Word has length 219 [2018-11-06 19:53:27,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:27,904 INFO L480 AbstractCegarLoop]: Abstraction has 36958 states and 44611 transitions. [2018-11-06 19:53:27,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:53:27,904 INFO L276 IsEmpty]: Start isEmpty. Operand 36958 states and 44611 transitions. [2018-11-06 19:53:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-11-06 19:53:27,932 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:27,933 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:53:27,933 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:27,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:27,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1938525756, now seen corresponding path program 1 times [2018-11-06 19:53:27,934 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:27,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:27,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:27,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:27,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:28,252 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:53:28,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:28,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:53:28,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:53:28,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:53:28,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:53:28,253 INFO L87 Difference]: Start difference. First operand 36958 states and 44611 transitions. Second operand 4 states. [2018-11-06 19:53:31,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:31,752 INFO L93 Difference]: Finished difference Result 87182 states and 106671 transitions. [2018-11-06 19:53:31,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:53:31,753 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 227 [2018-11-06 19:53:31,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:31,826 INFO L225 Difference]: With dead ends: 87182 [2018-11-06 19:53:31,827 INFO L226 Difference]: Without dead ends: 50226 [2018-11-06 19:53:31,852 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 19:53:31,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50226 states. [2018-11-06 19:53:32,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50226 to 50218. [2018-11-06 19:53:32,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50218 states. [2018-11-06 19:53:32,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50218 states to 50218 states and 59044 transitions. [2018-11-06 19:53:32,485 INFO L78 Accepts]: Start accepts. Automaton has 50218 states and 59044 transitions. Word has length 227 [2018-11-06 19:53:32,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:32,485 INFO L480 AbstractCegarLoop]: Abstraction has 50218 states and 59044 transitions. [2018-11-06 19:53:32,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:53:32,485 INFO L276 IsEmpty]: Start isEmpty. Operand 50218 states and 59044 transitions. [2018-11-06 19:53:32,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-11-06 19:53:32,507 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:32,507 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:53:32,507 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:32,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:32,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1732676009, now seen corresponding path program 1 times [2018-11-06 19:53:32,508 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:32,508 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:32,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:32,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:32,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:32,721 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-06 19:53:32,721 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:32,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 19:53:32,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:53:32,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:53:32,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:32,723 INFO L87 Difference]: Start difference. First operand 50218 states and 59044 transitions. Second operand 3 states. [2018-11-06 19:53:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:34,195 INFO L93 Difference]: Finished difference Result 99538 states and 116952 transitions. [2018-11-06 19:53:34,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:53:34,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2018-11-06 19:53:34,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:34,252 INFO L225 Difference]: With dead ends: 99538 [2018-11-06 19:53:34,252 INFO L226 Difference]: Without dead ends: 49322 [2018-11-06 19:53:34,285 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:34,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49322 states. [2018-11-06 19:53:34,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49322 to 49322. [2018-11-06 19:53:34,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49322 states. [2018-11-06 19:53:34,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49322 states to 49322 states and 57402 transitions. [2018-11-06 19:53:34,832 INFO L78 Accepts]: Start accepts. Automaton has 49322 states and 57402 transitions. Word has length 261 [2018-11-06 19:53:34,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:34,832 INFO L480 AbstractCegarLoop]: Abstraction has 49322 states and 57402 transitions. [2018-11-06 19:53:34,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:53:34,833 INFO L276 IsEmpty]: Start isEmpty. Operand 49322 states and 57402 transitions. [2018-11-06 19:53:34,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-11-06 19:53:34,850 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:34,851 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:53:34,851 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:34,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:34,851 INFO L82 PathProgramCache]: Analyzing trace with hash 89359678, now seen corresponding path program 1 times [2018-11-06 19:53:34,851 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:34,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:34,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:34,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:34,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:35,556 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-11-06 19:53:35,634 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-11-06 19:53:35,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:35,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:53:35,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:53:35,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:53:35,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:53:35,636 INFO L87 Difference]: Start difference. First operand 49322 states and 57402 transitions. Second operand 4 states. [2018-11-06 19:53:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:38,221 INFO L93 Difference]: Finished difference Result 161219 states and 186079 transitions. [2018-11-06 19:53:38,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:53:38,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 303 [2018-11-06 19:53:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:38,354 INFO L225 Difference]: With dead ends: 161219 [2018-11-06 19:53:38,355 INFO L226 Difference]: Without dead ends: 111899 [2018-11-06 19:53:38,403 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 19:53:38,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111899 states. [2018-11-06 19:53:39,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111899 to 82368. [2018-11-06 19:53:39,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82368 states. [2018-11-06 19:53:39,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82368 states to 82368 states and 94333 transitions. [2018-11-06 19:53:39,393 INFO L78 Accepts]: Start accepts. Automaton has 82368 states and 94333 transitions. Word has length 303 [2018-11-06 19:53:39,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:39,393 INFO L480 AbstractCegarLoop]: Abstraction has 82368 states and 94333 transitions. [2018-11-06 19:53:39,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:53:39,393 INFO L276 IsEmpty]: Start isEmpty. Operand 82368 states and 94333 transitions. [2018-11-06 19:53:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-11-06 19:53:39,424 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:39,424 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:53:39,425 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:39,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:39,425 INFO L82 PathProgramCache]: Analyzing trace with hash -2062689804, now seen corresponding path program 1 times [2018-11-06 19:53:39,425 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:39,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:39,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:39,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:39,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:39,777 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-06 19:53:39,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:39,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:53:39,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:53:39,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:53:39,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:53:39,779 INFO L87 Difference]: Start difference. First operand 82368 states and 94333 transitions. Second operand 4 states. [2018-11-06 19:53:42,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:42,254 INFO L93 Difference]: Finished difference Result 173569 states and 198229 transitions. [2018-11-06 19:53:42,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:53:42,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-11-06 19:53:42,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:42,371 INFO L225 Difference]: With dead ends: 173569 [2018-11-06 19:53:42,371 INFO L226 Difference]: Without dead ends: 91203 [2018-11-06 19:53:42,430 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:53:42,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91203 states. [2018-11-06 19:53:43,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91203 to 82776. [2018-11-06 19:53:43,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82776 states. [2018-11-06 19:53:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82776 states to 82776 states and 94429 transitions. [2018-11-06 19:53:43,333 INFO L78 Accepts]: Start accepts. Automaton has 82776 states and 94429 transitions. Word has length 314 [2018-11-06 19:53:43,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:43,333 INFO L480 AbstractCegarLoop]: Abstraction has 82776 states and 94429 transitions. [2018-11-06 19:53:43,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:53:43,334 INFO L276 IsEmpty]: Start isEmpty. Operand 82776 states and 94429 transitions. [2018-11-06 19:53:43,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-11-06 19:53:43,364 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:43,364 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:53:43,365 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:43,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:43,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1725152879, now seen corresponding path program 1 times [2018-11-06 19:53:43,365 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:43,365 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:43,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:43,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:43,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:43,778 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-11-06 19:53:43,841 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:53:43,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:43,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:53:43,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:53:43,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:53:43,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:53:43,843 INFO L87 Difference]: Start difference. First operand 82776 states and 94429 transitions. Second operand 4 states. [2018-11-06 19:53:46,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:46,215 INFO L93 Difference]: Finished difference Result 317582 states and 361649 transitions. [2018-11-06 19:53:46,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:53:46,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-11-06 19:53:46,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:46,520 INFO L225 Difference]: With dead ends: 317582 [2018-11-06 19:53:46,520 INFO L226 Difference]: Without dead ends: 234808 [2018-11-06 19:53:46,592 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 19:53:46,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234808 states. [2018-11-06 19:53:48,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234808 to 158168. [2018-11-06 19:53:48,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158168 states. [2018-11-06 19:53:48,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158168 states to 158168 states and 180159 transitions. [2018-11-06 19:53:48,704 INFO L78 Accepts]: Start accepts. Automaton has 158168 states and 180159 transitions. Word has length 314 [2018-11-06 19:53:48,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:48,705 INFO L480 AbstractCegarLoop]: Abstraction has 158168 states and 180159 transitions. [2018-11-06 19:53:48,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:53:48,705 INFO L276 IsEmpty]: Start isEmpty. Operand 158168 states and 180159 transitions. [2018-11-06 19:53:48,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-11-06 19:53:48,741 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:48,741 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:53:48,742 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:48,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:48,742 INFO L82 PathProgramCache]: Analyzing trace with hash -839404260, now seen corresponding path program 1 times [2018-11-06 19:53:48,742 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:48,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:48,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:48,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:48,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:48,991 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-11-06 19:53:48,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:48,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:53:48,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:53:48,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:53:48,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:53:48,993 INFO L87 Difference]: Start difference. First operand 158168 states and 180159 transitions. Second operand 4 states. [2018-11-06 19:53:52,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:53:52,930 INFO L93 Difference]: Finished difference Result 459232 states and 520430 transitions. [2018-11-06 19:53:52,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:53:52,931 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 320 [2018-11-06 19:53:52,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:53:53,327 INFO L225 Difference]: With dead ends: 459232 [2018-11-06 19:53:53,327 INFO L226 Difference]: Without dead ends: 301066 [2018-11-06 19:53:53,465 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:53:53,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301066 states. [2018-11-06 19:53:57,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301066 to 301056. [2018-11-06 19:53:57,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301056 states. [2018-11-06 19:53:58,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301056 states to 301056 states and 340034 transitions. [2018-11-06 19:53:58,174 INFO L78 Accepts]: Start accepts. Automaton has 301056 states and 340034 transitions. Word has length 320 [2018-11-06 19:53:58,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:53:58,175 INFO L480 AbstractCegarLoop]: Abstraction has 301056 states and 340034 transitions. [2018-11-06 19:53:58,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:53:58,175 INFO L276 IsEmpty]: Start isEmpty. Operand 301056 states and 340034 transitions. [2018-11-06 19:53:58,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-11-06 19:53:58,211 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:53:58,211 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:53:58,211 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:53:58,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:53:58,212 INFO L82 PathProgramCache]: Analyzing trace with hash 961237387, now seen corresponding path program 1 times [2018-11-06 19:53:58,212 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:53:58,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:53:58,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:58,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:53:58,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:53:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:53:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-06 19:53:58,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:53:58,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:53:58,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:53:58,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:53:58,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:53:58,542 INFO L87 Difference]: Start difference. First operand 301056 states and 340034 transitions. Second operand 3 states. [2018-11-06 19:54:04,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:54:04,045 INFO L93 Difference]: Finished difference Result 570008 states and 644767 transitions. [2018-11-06 19:54:04,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:54:04,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 320 [2018-11-06 19:54:04,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:54:04,448 INFO L225 Difference]: With dead ends: 570008 [2018-11-06 19:54:04,448 INFO L226 Difference]: Without dead ends: 268954 [2018-11-06 19:54:04,605 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:54:04,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268954 states. [2018-11-06 19:54:14,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268954 to 268890. [2018-11-06 19:54:14,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268890 states. [2018-11-06 19:54:15,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268890 states to 268890 states and 299592 transitions. [2018-11-06 19:54:15,028 INFO L78 Accepts]: Start accepts. Automaton has 268890 states and 299592 transitions. Word has length 320 [2018-11-06 19:54:15,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:54:15,028 INFO L480 AbstractCegarLoop]: Abstraction has 268890 states and 299592 transitions. [2018-11-06 19:54:15,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:54:15,029 INFO L276 IsEmpty]: Start isEmpty. Operand 268890 states and 299592 transitions. [2018-11-06 19:54:15,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-11-06 19:54:15,066 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:54:15,066 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:54:15,067 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:54:15,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:54:15,067 INFO L82 PathProgramCache]: Analyzing trace with hash -866630993, now seen corresponding path program 1 times [2018-11-06 19:54:15,067 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:54:15,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:54:15,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:54:15,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:54:15,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:54:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:54:15,420 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:54:15,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:54:15,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:54:15,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:54:15,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:54:15,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:54:15,422 INFO L87 Difference]: Start difference. First operand 268890 states and 299592 transitions. Second operand 3 states. [2018-11-06 19:54:20,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:54:20,027 INFO L93 Difference]: Finished difference Result 547806 states and 611035 transitions. [2018-11-06 19:54:20,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:54:20,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 324 [2018-11-06 19:54:20,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:54:20,435 INFO L225 Difference]: With dead ends: 547806 [2018-11-06 19:54:20,435 INFO L226 Difference]: Without dead ends: 278918 [2018-11-06 19:54:20,608 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:54:20,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278918 states. [2018-11-06 19:54:25,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278918 to 278914. [2018-11-06 19:54:25,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278914 states. [2018-11-06 19:54:26,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278914 states to 278914 states and 308572 transitions. [2018-11-06 19:54:26,216 INFO L78 Accepts]: Start accepts. Automaton has 278914 states and 308572 transitions. Word has length 324 [2018-11-06 19:54:26,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:54:26,217 INFO L480 AbstractCegarLoop]: Abstraction has 278914 states and 308572 transitions. [2018-11-06 19:54:26,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:54:26,217 INFO L276 IsEmpty]: Start isEmpty. Operand 278914 states and 308572 transitions. [2018-11-06 19:54:26,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-11-06 19:54:26,268 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:54:26,269 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 19:54:26,269 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:54:26,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:54:26,269 INFO L82 PathProgramCache]: Analyzing trace with hash -944323539, now seen corresponding path program 1 times [2018-11-06 19:54:26,270 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:54:26,270 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:54:26,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:54:26,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:54:26,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:54:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:54:26,593 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-11-06 19:54:26,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:54:26,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:54:26,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:54:26,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:54:26,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:54:26,595 INFO L87 Difference]: Start difference. First operand 278914 states and 308572 transitions. Second operand 4 states. [2018-11-06 19:54:31,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:54:31,607 INFO L93 Difference]: Finished difference Result 574431 states and 636392 transitions. [2018-11-06 19:54:31,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:54:31,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 331 [2018-11-06 19:54:31,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:54:31,938 INFO L225 Difference]: With dead ends: 574431 [2018-11-06 19:54:31,938 INFO L226 Difference]: Without dead ends: 295519 [2018-11-06 19:54:32,032 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 19:54:32,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295519 states. [2018-11-06 19:54:35,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295519 to 295465. [2018-11-06 19:54:35,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295465 states. [2018-11-06 19:54:35,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295465 states to 295465 states and 326614 transitions. [2018-11-06 19:54:35,937 INFO L78 Accepts]: Start accepts. Automaton has 295465 states and 326614 transitions. Word has length 331 [2018-11-06 19:54:35,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:54:35,937 INFO L480 AbstractCegarLoop]: Abstraction has 295465 states and 326614 transitions. [2018-11-06 19:54:35,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:54:35,937 INFO L276 IsEmpty]: Start isEmpty. Operand 295465 states and 326614 transitions. [2018-11-06 19:54:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-11-06 19:54:35,970 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:54:35,971 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:54:35,971 INFO L423 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:54:35,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:54:35,971 INFO L82 PathProgramCache]: Analyzing trace with hash 491247765, now seen corresponding path program 1 times [2018-11-06 19:54:35,971 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:54:35,972 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:54:35,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:54:35,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:54:35,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:54:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:54:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 111 proven. 4 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-11-06 19:54:37,078 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:54:37,078 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:54:37,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:54:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:54:37,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:54:37,437 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-11-06 19:54:37,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:54:37,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-11-06 19:54:37,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 19:54:37,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 19:54:37,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:54:37,464 INFO L87 Difference]: Start difference. First operand 295465 states and 326614 transitions. Second operand 6 states. [2018-11-06 19:54:49,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:54:49,545 INFO L93 Difference]: Finished difference Result 795734 states and 882981 transitions. [2018-11-06 19:54:49,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-06 19:54:49,545 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 338 [2018-11-06 19:54:49,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:54:49,546 INFO L225 Difference]: With dead ends: 795734 [2018-11-06 19:54:49,546 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 19:54:49,759 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-11-06 19:54:49,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 19:54:49,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 19:54:49,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 19:54:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 19:54:49,759 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 338 [2018-11-06 19:54:49,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:54:49,760 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 19:54:49,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 19:54:49,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 19:54:49,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 19:54:49,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 19:54:53,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:53,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:54,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:54,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:55,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:55,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:58,806 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:58,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:59,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:59,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:59,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:59,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:59,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:59,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:59,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:59,775 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:59,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:59,944 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:54:59,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,457 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,520 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:00,949 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:01,063 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:01,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:01,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:01,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:01,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:01,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:01,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:01,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:01,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:01,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:01,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:02,520 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:02,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:02,867 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:02,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:03,103 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:03,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:03,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:03,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:04,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:04,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:05,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:05,378 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:05,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:05,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:05,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:06,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:06,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:06,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:06,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:06,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:07,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:07,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:07,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:07,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:07,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:07,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:08,006 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:08,359 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:08,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:09,112 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:09,232 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:09,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:09,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:10,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:11,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:11,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:12,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:12,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:12,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:12,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:12,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:14,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:14,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:14,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:14,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:14,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:14,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:15,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:15,334 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:15,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:15,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:16,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:16,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:17,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:17,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:17,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:18,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:19,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:19,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:19,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:19,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:20,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:20,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:20,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:21,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:21,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:22,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:22,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:22,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:24,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:24,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:27,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:28,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:28,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:29,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:29,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:29,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:30,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:30,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:31,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:33,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:34,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:36,937 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:37,599 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:37,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:38,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:40,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:41,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:45,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:51,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:53,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:53,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:56,047 WARN L179 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 3632 DAG size of output: 2350 [2018-11-06 19:55:58,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:58,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:58,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:58,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:59,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:55:59,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:02,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:02,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,557 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,572 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,579 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:03,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:04,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:04,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:04,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:04,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:04,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:04,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:04,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:04,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:04,583 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:04,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:04,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:05,002 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:05,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:05,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:05,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:05,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:05,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:05,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:05,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:06,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:06,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:06,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:06,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:06,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:07,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:07,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:07,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:07,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:07,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:08,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:08,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:09,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:09,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:10,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:10,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:10,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:10,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:10,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:10,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:11,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:11,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:11,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:11,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:12,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:12,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:12,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:12,232 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:12,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:12,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:13,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:13,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:13,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:14,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:14,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:15,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:15,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:16,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:16,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:17,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:17,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:17,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:17,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:19,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:19,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:19,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:19,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:19,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:19,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:20,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:20,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:20,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:20,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:21,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:21,507 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:22,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:22,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:22,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:23,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:23,879 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:23,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:24,152 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:24,627 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:24,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:25,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:25,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:26,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:26,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:26,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:26,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:27,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:29,078 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:29,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:32,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:33,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:33,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:34,498 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:34,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:34,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:35,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:35,475 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 19:56:35,925 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-11-06 19:56:36,871 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-11-06 19:56:36,872 INFO L168 Benchmark]: Toolchain (without parser) took 227142.36 ms. Allocated memory was 1.5 GB in the beginning and 5.5 GB in the end (delta: 4.0 GB). Free memory was 1.4 GB in the beginning and 4.2 GB in the end (delta: -2.8 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-11-06 19:56:36,873 INFO L168 Benchmark]: CDTParser took 0.22 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 19:56:36,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1116.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-06 19:56:36,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 282.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -878.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2018-11-06 19:56:36,875 INFO L168 Benchmark]: Boogie Preprocessor took 123.78 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 19:56:36,876 INFO L168 Benchmark]: RCFGBuilder took 5436.84 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 257.3 MB). Peak memory consumption was 257.3 MB. Max. memory is 7.1 GB. [2018-11-06 19:56:36,878 INFO L168 Benchmark]: TraceAbstraction took 220177.36 ms. Allocated memory was 2.3 GB in the beginning and 5.5 GB in the end (delta: 3.2 GB). Free memory was 2.0 GB in the beginning and 4.2 GB in the end (delta: -2.3 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-11-06 19:56:36,884 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1116.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 282.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -878.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.78 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5436.84 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 257.3 MB). Peak memory consumption was 257.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220177.36 ms. Allocated memory was 2.3 GB in the beginning and 5.5 GB in the end (delta: 3.2 GB). Free memory was 2.0 GB in the beginning and 4.2 GB in the end (delta: -2.3 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1545]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 3617. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown