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/Problem12_label12_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 21:08:24,986 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 21:08:24,988 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 21:08:25,006 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 21:08:25,006 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 21:08:25,008 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 21:08:25,009 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 21:08:25,011 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 21:08:25,014 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 21:08:25,016 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 21:08:25,017 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 21:08:25,017 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 21:08:25,020 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 21:08:25,021 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 21:08:25,022 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 21:08:25,024 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 21:08:25,025 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 21:08:25,034 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 21:08:25,039 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 21:08:25,041 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 21:08:25,043 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 21:08:25,044 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 21:08:25,047 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 21:08:25,049 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 21:08:25,049 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 21:08:25,050 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 21:08:25,051 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 21:08:25,052 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 21:08:25,054 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 21:08:25,055 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 21:08:25,055 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 21:08:25,058 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 21:08:25,060 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 21:08:25,088 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 21:08:25,088 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 21:08:25,090 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 21:08:25,090 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 21:08:25,091 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 21:08:25,091 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 21:08:25,091 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 21:08:25,091 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 21:08:25,091 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 21:08:25,093 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 21:08:25,093 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 21:08:25,093 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 21:08:25,093 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 21:08:25,093 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 21:08:25,094 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 21:08:25,094 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 21:08:25,094 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 21:08:25,094 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 21:08:25,094 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 21:08:25,095 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 21:08:25,096 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 21:08:25,096 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 21:08:25,096 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 21:08:25,096 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 21:08:25,097 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 21:08:25,097 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 21:08:25,097 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 21:08:25,097 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 21:08:25,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 21:08:25,176 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 21:08:25,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 21:08:25,182 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 21:08:25,183 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 21:08:25,184 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label12_true-unreach-call.c [2018-11-06 21:08:25,258 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04557078e/eab55d4b13f848a28fd73c4e3ffd95c3/FLAG63688e60e [2018-11-06 21:08:26,044 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 21:08:26,045 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label12_true-unreach-call.c [2018-11-06 21:08:26,076 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04557078e/eab55d4b13f848a28fd73c4e3ffd95c3/FLAG63688e60e [2018-11-06 21:08:26,096 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04557078e/eab55d4b13f848a28fd73c4e3ffd95c3 [2018-11-06 21:08:26,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 21:08:26,110 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 21:08:26,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 21:08:26,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 21:08:26,116 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 21:08:26,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:08:26" (1/1) ... [2018-11-06 21:08:26,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7293a3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:26, skipping insertion in model container [2018-11-06 21:08:26,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:08:26" (1/1) ... [2018-11-06 21:08:26,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 21:08:26,278 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 21:08:27,545 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:08:27,550 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 21:08:28,152 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:08:28,188 INFO L193 MainTranslator]: Completed translation [2018-11-06 21:08:28,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28 WrapperNode [2018-11-06 21:08:28,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 21:08:28,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 21:08:28,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 21:08:28,192 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 21:08:28,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28" (1/1) ... [2018-11-06 21:08:28,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28" (1/1) ... [2018-11-06 21:08:28,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 21:08:28,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 21:08:28,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 21:08:28,788 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 21:08:28,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28" (1/1) ... [2018-11-06 21:08:28,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28" (1/1) ... [2018-11-06 21:08:28,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28" (1/1) ... [2018-11-06 21:08:28,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28" (1/1) ... [2018-11-06 21:08:28,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28" (1/1) ... [2018-11-06 21:08:28,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28" (1/1) ... [2018-11-06 21:08:29,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28" (1/1) ... [2018-11-06 21:08:29,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 21:08:29,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 21:08:29,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 21:08:29,120 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 21:08:29,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 21:08:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 21:08:29,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 21:08:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 21:08:38,256 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 21:08:38,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:38 BoogieIcfgContainer [2018-11-06 21:08:38,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 21:08:38,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 21:08:38,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 21:08:38,262 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 21:08:38,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:08:26" (1/3) ... [2018-11-06 21:08:38,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356a1b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:08:38, skipping insertion in model container [2018-11-06 21:08:38,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:08:28" (2/3) ... [2018-11-06 21:08:38,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356a1b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:08:38, skipping insertion in model container [2018-11-06 21:08:38,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:08:38" (3/3) ... [2018-11-06 21:08:38,268 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label12_true-unreach-call.c [2018-11-06 21:08:38,280 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 21:08:38,293 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 21:08:38,311 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 21:08:38,364 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 21:08:38,365 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 21:08:38,365 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 21:08:38,365 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 21:08:38,365 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 21:08:38,366 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 21:08:38,366 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 21:08:38,366 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 21:08:38,366 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 21:08:38,401 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-11-06 21:08:38,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-06 21:08:38,413 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:08:38,414 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:08:38,417 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:08:38,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:08:38,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1281577798, now seen corresponding path program 1 times [2018-11-06 21:08:38,426 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:08:38,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:08:38,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:08:38,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:08:38,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:08:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:08:38,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:08:38,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:08:38,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:08:38,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:08:38,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:08:38,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:08:38,950 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-11-06 21:08:51,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:08:51,917 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-11-06 21:08:51,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:08:51,919 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2018-11-06 21:08:51,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:08:51,958 INFO L225 Difference]: With dead ends: 3146 [2018-11-06 21:08:51,958 INFO L226 Difference]: Without dead ends: 2320 [2018-11-06 21:08:51,967 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:08:51,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-11-06 21:08:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-11-06 21:08:52,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-11-06 21:08:52,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3858 transitions. [2018-11-06 21:08:52,141 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3858 transitions. Word has length 59 [2018-11-06 21:08:52,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:08:52,143 INFO L480 AbstractCegarLoop]: Abstraction has 2320 states and 3858 transitions. [2018-11-06 21:08:52,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:08:52,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3858 transitions. [2018-11-06 21:08:52,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-06 21:08:52,152 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:08:52,153 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:08:52,153 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:08:52,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:08:52,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1104251190, now seen corresponding path program 1 times [2018-11-06 21:08:52,154 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:08:52,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:08:52,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:08:52,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:08:52,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:08:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:08:52,838 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 51 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:08:52,839 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:08:52,839 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 21:08:52,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:08:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:08:52,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:08:53,116 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:08:53,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:08:53,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-11-06 21:08:53,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 21:08:53,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 21:08:53,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-06 21:08:53,154 INFO L87 Difference]: Start difference. First operand 2320 states and 3858 transitions. Second operand 7 states. [2018-11-06 21:09:23,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:09:23,840 INFO L93 Difference]: Finished difference Result 22720 states and 38802 transitions. [2018-11-06 21:09:23,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-06 21:09:23,841 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2018-11-06 21:09:23,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:09:23,923 INFO L225 Difference]: With dead ends: 22720 [2018-11-06 21:09:23,923 INFO L226 Difference]: Without dead ends: 18143 [2018-11-06 21:09:23,933 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 135 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2018-11-06 21:09:23,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18143 states. [2018-11-06 21:09:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18143 to 9087. [2018-11-06 21:09:24,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9087 states. [2018-11-06 21:09:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9087 states to 9087 states and 11085 transitions. [2018-11-06 21:09:24,159 INFO L78 Accepts]: Start accepts. Automaton has 9087 states and 11085 transitions. Word has length 131 [2018-11-06 21:09:24,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:09:24,160 INFO L480 AbstractCegarLoop]: Abstraction has 9087 states and 11085 transitions. [2018-11-06 21:09:24,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 21:09:24,160 INFO L276 IsEmpty]: Start isEmpty. Operand 9087 states and 11085 transitions. [2018-11-06 21:09:24,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-11-06 21:09:24,169 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:09:24,169 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, 3, 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 21:09:24,170 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:09:24,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:09:24,170 INFO L82 PathProgramCache]: Analyzing trace with hash -737947407, now seen corresponding path program 1 times [2018-11-06 21:09:24,170 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:09:24,170 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:09:24,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:09:24,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:09:24,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:09:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:09:24,651 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-06 21:09:25,173 WARN L179 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 23 [2018-11-06 21:09:25,340 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 23 [2018-11-06 21:09:25,533 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-06 21:09:25,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:09:25,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 21:09:25,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 21:09:25,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 21:09:25,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 21:09:25,535 INFO L87 Difference]: Start difference. First operand 9087 states and 11085 transitions. Second operand 6 states. [2018-11-06 21:09:34,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:09:34,257 INFO L93 Difference]: Finished difference Result 22685 states and 27974 transitions. [2018-11-06 21:09:34,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 21:09:34,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 274 [2018-11-06 21:09:34,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:09:34,307 INFO L225 Difference]: With dead ends: 22685 [2018-11-06 21:09:34,307 INFO L226 Difference]: Without dead ends: 12095 [2018-11-06 21:09:34,323 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-11-06 21:09:34,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12095 states. [2018-11-06 21:09:34,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12095 to 12095. [2018-11-06 21:09:34,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12095 states. [2018-11-06 21:09:34,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12095 states to 12095 states and 14681 transitions. [2018-11-06 21:09:34,542 INFO L78 Accepts]: Start accepts. Automaton has 12095 states and 14681 transitions. Word has length 274 [2018-11-06 21:09:34,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:09:34,542 INFO L480 AbstractCegarLoop]: Abstraction has 12095 states and 14681 transitions. [2018-11-06 21:09:34,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 21:09:34,544 INFO L276 IsEmpty]: Start isEmpty. Operand 12095 states and 14681 transitions. [2018-11-06 21:09:34,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-11-06 21:09:34,553 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:09:34,554 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, 3, 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] [2018-11-06 21:09:34,554 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:09:34,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:09:34,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1911810078, now seen corresponding path program 1 times [2018-11-06 21:09:34,555 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:09:34,555 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:09:34,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:09:34,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:09:34,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:09:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:09:34,988 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 113 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-06 21:09:34,988 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:09:34,988 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 21:09:35,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:09:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:09:35,111 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:09:35,196 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:09:35,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:09:35,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-11-06 21:09:35,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:09:35,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:09:35,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:09:35,220 INFO L87 Difference]: Start difference. First operand 12095 states and 14681 transitions. Second operand 4 states. [2018-11-06 21:09:41,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:09:41,227 INFO L93 Difference]: Finished difference Result 42296 states and 52431 transitions. [2018-11-06 21:09:41,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:09:41,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 283 [2018-11-06 21:09:41,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:09:41,290 INFO L225 Difference]: With dead ends: 42296 [2018-11-06 21:09:41,290 INFO L226 Difference]: Without dead ends: 30203 [2018-11-06 21:09:41,311 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 283 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:09:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30203 states. [2018-11-06 21:09:41,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30203 to 18863. [2018-11-06 21:09:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18863 states. [2018-11-06 21:09:41,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18863 states to 18863 states and 22730 transitions. [2018-11-06 21:09:41,699 INFO L78 Accepts]: Start accepts. Automaton has 18863 states and 22730 transitions. Word has length 283 [2018-11-06 21:09:41,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:09:41,700 INFO L480 AbstractCegarLoop]: Abstraction has 18863 states and 22730 transitions. [2018-11-06 21:09:41,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:09:41,700 INFO L276 IsEmpty]: Start isEmpty. Operand 18863 states and 22730 transitions. [2018-11-06 21:09:41,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2018-11-06 21:09:41,709 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:09:41,709 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 21:09:41,709 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:09:41,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:09:41,710 INFO L82 PathProgramCache]: Analyzing trace with hash -2082331721, now seen corresponding path program 1 times [2018-11-06 21:09:41,710 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:09:41,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:09:41,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:09:41,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:09:41,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:09:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:09:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-06 21:09:42,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:09:42,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:09:42,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:09:42,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:09:42,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:09:42,099 INFO L87 Difference]: Start difference. First operand 18863 states and 22730 transitions. Second operand 4 states. [2018-11-06 21:09:49,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:09:49,304 INFO L93 Difference]: Finished difference Result 71564 states and 86965 transitions. [2018-11-06 21:09:49,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:09:49,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 357 [2018-11-06 21:09:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:09:49,398 INFO L225 Difference]: With dead ends: 71564 [2018-11-06 21:09:49,398 INFO L226 Difference]: Without dead ends: 52703 [2018-11-06 21:09:49,432 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 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 21:09:49,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52703 states. [2018-11-06 21:09:50,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52703 to 52703. [2018-11-06 21:09:50,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52703 states. [2018-11-06 21:09:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52703 states to 52703 states and 62446 transitions. [2018-11-06 21:09:50,133 INFO L78 Accepts]: Start accepts. Automaton has 52703 states and 62446 transitions. Word has length 357 [2018-11-06 21:09:50,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:09:50,134 INFO L480 AbstractCegarLoop]: Abstraction has 52703 states and 62446 transitions. [2018-11-06 21:09:50,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:09:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 52703 states and 62446 transitions. [2018-11-06 21:09:50,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2018-11-06 21:09:50,148 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:09:50,149 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 21:09:50,149 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:09:50,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:09:50,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1518724673, now seen corresponding path program 1 times [2018-11-06 21:09:50,150 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:09:50,150 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:09:50,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:09:50,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:09:50,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:09:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:09:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-11-06 21:09:50,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:09:50,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:09:50,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:09:50,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:09:50,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:09:50,445 INFO L87 Difference]: Start difference. First operand 52703 states and 62446 transitions. Second operand 3 states. [2018-11-06 21:09:55,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:09:55,371 INFO L93 Difference]: Finished difference Result 117436 states and 139023 transitions. [2018-11-06 21:09:55,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:09:55,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 361 [2018-11-06 21:09:55,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:09:55,447 INFO L225 Difference]: With dead ends: 117436 [2018-11-06 21:09:55,447 INFO L226 Difference]: Without dead ends: 64735 [2018-11-06 21:09:55,485 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 21:09:55,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64735 states. [2018-11-06 21:09:56,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64735 to 63231. [2018-11-06 21:09:56,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63231 states. [2018-11-06 21:09:56,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63231 states to 63231 states and 72251 transitions. [2018-11-06 21:09:56,247 INFO L78 Accepts]: Start accepts. Automaton has 63231 states and 72251 transitions. Word has length 361 [2018-11-06 21:09:56,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:09:56,248 INFO L480 AbstractCegarLoop]: Abstraction has 63231 states and 72251 transitions. [2018-11-06 21:09:56,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:09:56,249 INFO L276 IsEmpty]: Start isEmpty. Operand 63231 states and 72251 transitions. [2018-11-06 21:09:56,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-11-06 21:09:56,266 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:09:56,267 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 21:09:56,267 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:09:56,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:09:56,267 INFO L82 PathProgramCache]: Analyzing trace with hash -632950127, now seen corresponding path program 1 times [2018-11-06 21:09:56,271 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:09:56,271 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:09:56,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:09:56,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:09:56,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:09:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:09:56,939 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-11-06 21:09:56,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:09:56,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:09:56,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 21:09:56,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 21:09:56,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:09:56,949 INFO L87 Difference]: Start difference. First operand 63231 states and 72251 transitions. Second operand 5 states. [2018-11-06 21:10:06,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:10:06,993 INFO L93 Difference]: Finished difference Result 186662 states and 212762 transitions. [2018-11-06 21:10:06,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 21:10:06,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 393 [2018-11-06 21:10:07,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:10:07,159 INFO L225 Difference]: With dead ends: 186662 [2018-11-06 21:10:07,159 INFO L226 Difference]: Without dead ends: 123433 [2018-11-06 21:10:07,201 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:10:07,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123433 states. [2018-11-06 21:10:08,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123433 to 100121. [2018-11-06 21:10:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100121 states. [2018-11-06 21:10:08,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100121 states to 100121 states and 109773 transitions. [2018-11-06 21:10:08,504 INFO L78 Accepts]: Start accepts. Automaton has 100121 states and 109773 transitions. Word has length 393 [2018-11-06 21:10:08,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:10:08,504 INFO L480 AbstractCegarLoop]: Abstraction has 100121 states and 109773 transitions. [2018-11-06 21:10:08,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 21:10:08,505 INFO L276 IsEmpty]: Start isEmpty. Operand 100121 states and 109773 transitions. [2018-11-06 21:10:08,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2018-11-06 21:10:08,624 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:10:08,625 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:10:08,625 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:10:08,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:10:08,625 INFO L82 PathProgramCache]: Analyzing trace with hash 2084166946, now seen corresponding path program 1 times [2018-11-06 21:10:08,626 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:10:08,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:10:08,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:10:08,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:10:08,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:10:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:10:09,268 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 560 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-11-06 21:10:09,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:10:09,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:10:09,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:10:09,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:10:09,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:10:09,270 INFO L87 Difference]: Start difference. First operand 100121 states and 109773 transitions. Second operand 4 states. [2018-11-06 21:10:16,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:10:16,295 INFO L93 Difference]: Finished difference Result 245354 states and 269981 transitions. [2018-11-06 21:10:16,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:10:16,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 744 [2018-11-06 21:10:16,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:10:16,457 INFO L225 Difference]: With dead ends: 245354 [2018-11-06 21:10:16,458 INFO L226 Difference]: Without dead ends: 130922 [2018-11-06 21:10:16,534 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 21:10:16,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130922 states. [2018-11-06 21:10:17,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130922 to 116634. [2018-11-06 21:10:17,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116634 states. [2018-11-06 21:10:17,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116634 states to 116634 states and 126245 transitions. [2018-11-06 21:10:17,783 INFO L78 Accepts]: Start accepts. Automaton has 116634 states and 126245 transitions. Word has length 744 [2018-11-06 21:10:17,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:10:17,784 INFO L480 AbstractCegarLoop]: Abstraction has 116634 states and 126245 transitions. [2018-11-06 21:10:17,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:10:17,785 INFO L276 IsEmpty]: Start isEmpty. Operand 116634 states and 126245 transitions. [2018-11-06 21:10:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2018-11-06 21:10:17,829 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:10:17,830 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:10:17,830 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:10:17,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:10:17,830 INFO L82 PathProgramCache]: Analyzing trace with hash 134317932, now seen corresponding path program 1 times [2018-11-06 21:10:17,831 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:10:17,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:10:17,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:10:17,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:10:17,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:10:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:10:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 729 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-11-06 21:10:19,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:10:19,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:10:19,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:10:19,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:10:19,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:10:19,707 INFO L87 Difference]: Start difference. First operand 116634 states and 126245 transitions. Second operand 4 states. [2018-11-06 21:10:26,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:10:26,472 INFO L93 Difference]: Finished difference Result 253570 states and 275427 transitions. [2018-11-06 21:10:26,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:10:26,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 773 [2018-11-06 21:10:26,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:10:26,616 INFO L225 Difference]: With dead ends: 253570 [2018-11-06 21:10:26,616 INFO L226 Difference]: Without dead ends: 137690 [2018-11-06 21:10:26,681 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 21:10:26,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137690 states. [2018-11-06 21:10:28,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137690 to 132426. [2018-11-06 21:10:28,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132426 states. [2018-11-06 21:10:28,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132426 states to 132426 states and 141768 transitions. [2018-11-06 21:10:28,740 INFO L78 Accepts]: Start accepts. Automaton has 132426 states and 141768 transitions. Word has length 773 [2018-11-06 21:10:28,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:10:28,740 INFO L480 AbstractCegarLoop]: Abstraction has 132426 states and 141768 transitions. [2018-11-06 21:10:28,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:10:28,740 INFO L276 IsEmpty]: Start isEmpty. Operand 132426 states and 141768 transitions. [2018-11-06 21:10:28,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 849 [2018-11-06 21:10:28,802 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:10:28,803 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:10:28,803 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:10:28,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:10:28,804 INFO L82 PathProgramCache]: Analyzing trace with hash 904075422, now seen corresponding path program 1 times [2018-11-06 21:10:28,804 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:10:28,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:10:28,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:10:28,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:10:28,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:10:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:10:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 607 proven. 57 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-11-06 21:10:29,893 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:10:29,893 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:10:29,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:10:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:10:30,106 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:10:32,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 628 proven. 36 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-11-06 21:10:32,359 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 21:10:32,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-06 21:10:32,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 21:10:32,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 21:10:32,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-06 21:10:32,361 INFO L87 Difference]: Start difference. First operand 132426 states and 141768 transitions. Second operand 8 states. [2018-11-06 21:11:13,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:11:13,992 INFO L93 Difference]: Finished difference Result 343065 states and 368692 transitions. [2018-11-06 21:11:13,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-06 21:11:13,993 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 848 [2018-11-06 21:11:13,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:11:14,279 INFO L225 Difference]: With dead ends: 343065 [2018-11-06 21:11:14,280 INFO L226 Difference]: Without dead ends: 200843 [2018-11-06 21:11:14,356 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 858 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=126, Invalid=254, Unknown=0, NotChecked=0, Total=380 [2018-11-06 21:11:14,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200843 states. [2018-11-06 21:11:16,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200843 to 188059. [2018-11-06 21:11:16,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188059 states. [2018-11-06 21:11:17,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188059 states to 188059 states and 198465 transitions. [2018-11-06 21:11:17,141 INFO L78 Accepts]: Start accepts. Automaton has 188059 states and 198465 transitions. Word has length 848 [2018-11-06 21:11:17,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:11:17,142 INFO L480 AbstractCegarLoop]: Abstraction has 188059 states and 198465 transitions. [2018-11-06 21:11:17,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 21:11:17,142 INFO L276 IsEmpty]: Start isEmpty. Operand 188059 states and 198465 transitions. [2018-11-06 21:11:17,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1273 [2018-11-06 21:11:17,277 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:11:17,278 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:11:17,278 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:11:17,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:11:17,279 INFO L82 PathProgramCache]: Analyzing trace with hash -710316921, now seen corresponding path program 1 times [2018-11-06 21:11:17,279 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:11:17,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:11:17,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:11:17,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:11:17,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:11:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:11:18,098 WARN L179 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-11-06 21:11:18,545 WARN L179 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2018-11-06 21:11:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 1197 proven. 12 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-11-06 21:11:20,304 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:11:20,304 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:11:20,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:11:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:11:20,627 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:11:25,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 816 proven. 0 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2018-11-06 21:11:25,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:11:25,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-11-06 21:11:25,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-06 21:11:25,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-06 21:11:25,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-06 21:11:25,419 INFO L87 Difference]: Start difference. First operand 188059 states and 198465 transitions. Second operand 10 states. [2018-11-06 21:11:46,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:11:46,260 INFO L93 Difference]: Finished difference Result 424461 states and 448311 transitions. [2018-11-06 21:11:46,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-06 21:11:46,260 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1272 [2018-11-06 21:11:46,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:11:46,521 INFO L225 Difference]: With dead ends: 424461 [2018-11-06 21:11:46,521 INFO L226 Difference]: Without dead ends: 230168 [2018-11-06 21:11:46,608 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1293 GetRequests, 1277 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2018-11-06 21:11:46,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230168 states. [2018-11-06 21:11:48,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230168 to 176012. [2018-11-06 21:11:48,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176012 states. [2018-11-06 21:11:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176012 states to 176012 states and 182375 transitions. [2018-11-06 21:11:48,867 INFO L78 Accepts]: Start accepts. Automaton has 176012 states and 182375 transitions. Word has length 1272 [2018-11-06 21:11:48,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:11:48,868 INFO L480 AbstractCegarLoop]: Abstraction has 176012 states and 182375 transitions. [2018-11-06 21:11:48,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-06 21:11:48,868 INFO L276 IsEmpty]: Start isEmpty. Operand 176012 states and 182375 transitions. [2018-11-06 21:11:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1464 [2018-11-06 21:11:48,993 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:11:48,994 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:11:48,995 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:11:48,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:11:48,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1610181304, now seen corresponding path program 1 times [2018-11-06 21:11:48,995 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:11:48,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:11:48,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:11:48,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:11:48,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:11:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:11:49,932 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-11-06 21:11:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1810 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1525 trivial. 0 not checked. [2018-11-06 21:11:51,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:11:51,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:11:51,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:11:51,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:11:51,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:11:51,826 INFO L87 Difference]: Start difference. First operand 176012 states and 182375 transitions. Second operand 4 states. [2018-11-06 21:11:59,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:11:59,061 INFO L93 Difference]: Finished difference Result 361043 states and 373977 transitions. [2018-11-06 21:11:59,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:11:59,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1463 [2018-11-06 21:11:59,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:11:59,063 INFO L225 Difference]: With dead ends: 361043 [2018-11-06 21:11:59,063 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 21:11:59,166 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 21:11:59,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 21:11:59,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 21:11:59,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 21:11:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 21:11:59,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1463 [2018-11-06 21:11:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:11:59,167 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 21:11:59,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:11:59,167 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 21:11:59,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 21:11:59,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 21:11:59,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:11:59,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:11:59,809 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:11:59,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:11:59,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:11:59,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:11:59,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:00,003 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:00,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:00,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:00,378 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:00,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:00,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:00,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:00,831 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:01,117 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:01,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:01,441 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:01,512 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:01,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:01,662 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:01,696 WARN L179 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 805 DAG size of output: 536 [2018-11-06 21:12:01,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,297 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,767 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,777 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,804 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:02,903 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:03,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:03,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:03,503 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:03,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:03,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:03,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:03,698 WARN L179 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 803 DAG size of output: 535 [2018-11-06 21:12:03,810 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,112 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,253 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:04,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,260 WARN L179 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 805 DAG size of output: 536 [2018-11-06 21:12:05,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,616 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,799 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:05,943 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,506 WARN L179 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 805 DAG size of output: 536 [2018-11-06 21:12:06,576 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,848 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:06,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,117 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:12:07,672 WARN L179 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 805 DAG size of output: 536 Received shutdown request... [2018-11-06 21:12:08,158 WARN L187 SmtUtils]: Removed 4 from assertion stack [2018-11-06 21:12:08,159 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 21:12:08,160 INFO L168 Benchmark]: Toolchain (without parser) took 222050.51 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-06 21:12:08,161 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 21:12:08,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2077.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-06 21:12:08,162 INFO L168 Benchmark]: Boogie Procedure Inliner took 598.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -955.3 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2018-11-06 21:12:08,163 INFO L168 Benchmark]: Boogie Preprocessor took 331.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2018-11-06 21:12:08,164 INFO L168 Benchmark]: RCFGBuilder took 9137.38 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 249.0 MB). Free memory was 2.1 GB in the beginning and 2.3 GB in the end (delta: -224.8 MB). Peak memory consumption was 645.6 MB. Max. memory is 7.1 GB. [2018-11-06 21:12:08,165 INFO L168 Benchmark]: TraceAbstraction took 209900.42 ms. Allocated memory was 2.5 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: -487.8 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-11-06 21:12:08,170 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2077.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 598.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -955.3 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 331.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9137.38 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 249.0 MB). Free memory was 2.1 GB in the beginning and 2.3 GB in the end (delta: -224.8 MB). Peak memory consumption was 645.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209900.42 ms. Allocated memory was 2.5 GB in the beginning and 4.6 GB in the end (delta: 2.0 GB). Free memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: -487.8 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 186]: 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 490. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown