java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label31_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 17:55:47,918 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 17:55:47,920 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 17:55:47,944 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 17:55:47,944 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 17:55:47,946 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 17:55:47,949 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 17:55:47,952 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 17:55:47,955 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 17:55:47,962 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 17:55:47,963 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 17:55:47,963 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 17:55:47,967 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 17:55:47,968 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 17:55:47,972 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 17:55:47,973 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 17:55:47,974 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 17:55:47,976 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 17:55:47,978 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 17:55:47,979 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 17:55:47,981 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 17:55:47,982 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 17:55:47,984 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 17:55:47,992 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 17:55:48,007 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 17:55:48,008 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 17:55:48,008 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 17:55:48,009 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 17:55:48,009 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 17:55:48,009 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 17:55:48,010 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 17:55:48,010 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 17:55:48,010 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 17:55:48,010 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 17:55:48,011 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 17:55:48,011 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 17:55:48,011 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 17:55:48,011 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 17:55:48,011 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 17:55:48,012 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 17:55:48,012 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 17:55:48,012 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 17:55:48,012 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 17:55:48,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 17:55:48,012 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 17:55:48,013 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 17:55:48,013 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 17:55:48,013 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 17:55:48,013 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 17:55:48,013 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 17:55:48,014 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 17:55:48,014 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 17:55:48,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 17:55:48,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 17:55:48,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 17:55:48,076 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 17:55:48,076 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 17:55:48,077 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label31_false-unreach-call.c [2018-10-23 17:55:48,140 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8ebbd97a2/2072d638723244d18b7f443898c6a3e8/FLAG04f933a81 [2018-10-23 17:55:48,715 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 17:55:48,719 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label31_false-unreach-call.c [2018-10-23 17:55:48,742 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8ebbd97a2/2072d638723244d18b7f443898c6a3e8/FLAG04f933a81 [2018-10-23 17:55:48,763 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8ebbd97a2/2072d638723244d18b7f443898c6a3e8 [2018-10-23 17:55:48,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 17:55:48,778 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 17:55:48,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 17:55:48,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 17:55:48,783 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 17:55:48,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:55:48" (1/1) ... [2018-10-23 17:55:48,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11290b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:48, skipping insertion in model container [2018-10-23 17:55:48,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:55:48" (1/1) ... [2018-10-23 17:55:48,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 17:55:48,881 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 17:55:49,507 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 17:55:49,512 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 17:55:49,717 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 17:55:49,737 INFO L193 MainTranslator]: Completed translation [2018-10-23 17:55:49,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49 WrapperNode [2018-10-23 17:55:49,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 17:55:49,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 17:55:49,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 17:55:49,739 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 17:55:49,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49" (1/1) ... [2018-10-23 17:55:49,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49" (1/1) ... [2018-10-23 17:55:50,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 17:55:50,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 17:55:50,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 17:55:50,012 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 17:55:50,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49" (1/1) ... [2018-10-23 17:55:50,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49" (1/1) ... [2018-10-23 17:55:50,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49" (1/1) ... [2018-10-23 17:55:50,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49" (1/1) ... [2018-10-23 17:55:50,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49" (1/1) ... [2018-10-23 17:55:50,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49" (1/1) ... [2018-10-23 17:55:50,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49" (1/1) ... [2018-10-23 17:55:50,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 17:55:50,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 17:55:50,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 17:55:50,131 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 17:55:50,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 17:55:50,198 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 17:55:50,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 17:55:50,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 17:55:54,880 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 17:55:54,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:55:54 BoogieIcfgContainer [2018-10-23 17:55:54,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 17:55:54,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 17:55:54,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 17:55:54,887 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 17:55:54,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 05:55:48" (1/3) ... [2018-10-23 17:55:54,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60428dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:55:54, skipping insertion in model container [2018-10-23 17:55:54,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:49" (2/3) ... [2018-10-23 17:55:54,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60428dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:55:54, skipping insertion in model container [2018-10-23 17:55:54,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:55:54" (3/3) ... [2018-10-23 17:55:54,891 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label31_false-unreach-call.c [2018-10-23 17:55:54,901 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 17:55:54,909 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 17:55:54,927 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 17:55:54,963 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 17:55:54,964 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 17:55:54,964 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 17:55:54,964 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 17:55:54,964 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 17:55:54,964 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 17:55:54,964 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 17:55:54,965 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 17:55:54,965 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 17:55:54,991 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2018-10-23 17:55:54,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-23 17:55:54,998 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:55:54,999 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:55:55,002 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:55:55,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:55:55,009 INFO L82 PathProgramCache]: Analyzing trace with hash 150940466, now seen corresponding path program 1 times [2018-10-23 17:55:55,011 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:55:55,012 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:55:55,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:55:55,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:55:55,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:55:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:55:55,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:55:55,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:55:55,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 17:55:55,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 17:55:55,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 17:55:55,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 17:55:55,231 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2018-10-23 17:55:57,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:55:57,947 INFO L93 Difference]: Finished difference Result 764 states and 1348 transitions. [2018-10-23 17:55:57,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 17:55:57,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-23 17:55:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:55:57,969 INFO L225 Difference]: With dead ends: 764 [2018-10-23 17:55:57,969 INFO L226 Difference]: Without dead ends: 476 [2018-10-23 17:55:57,975 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 17:55:57,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2018-10-23 17:55:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2018-10-23 17:55:58,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2018-10-23 17:55:58,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 723 transitions. [2018-10-23 17:55:58,055 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 723 transitions. Word has length 8 [2018-10-23 17:55:58,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:55:58,055 INFO L481 AbstractCegarLoop]: Abstraction has 476 states and 723 transitions. [2018-10-23 17:55:58,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 17:55:58,056 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 723 transitions. [2018-10-23 17:55:58,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-23 17:55:58,059 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:55:58,059 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:55:58,060 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:55:58,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:55:58,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1337609803, now seen corresponding path program 1 times [2018-10-23 17:55:58,061 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:55:58,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:55:58,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:55:58,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:55:58,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:55:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:55:58,371 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:55:58,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:55:58,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 17:55:58,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 17:55:58,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 17:55:58,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 17:55:58,376 INFO L87 Difference]: Start difference. First operand 476 states and 723 transitions. Second operand 4 states. [2018-10-23 17:56:01,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:56:01,832 INFO L93 Difference]: Finished difference Result 1713 states and 2683 transitions. [2018-10-23 17:56:01,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 17:56:01,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 77 [2018-10-23 17:56:01,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:56:01,841 INFO L225 Difference]: With dead ends: 1713 [2018-10-23 17:56:01,841 INFO L226 Difference]: Without dead ends: 1239 [2018-10-23 17:56:01,845 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 17:56:01,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2018-10-23 17:56:01,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1222. [2018-10-23 17:56:01,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1222 states. [2018-10-23 17:56:01,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1765 transitions. [2018-10-23 17:56:01,893 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1765 transitions. Word has length 77 [2018-10-23 17:56:01,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:56:01,893 INFO L481 AbstractCegarLoop]: Abstraction has 1222 states and 1765 transitions. [2018-10-23 17:56:01,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 17:56:01,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1765 transitions. [2018-10-23 17:56:01,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-23 17:56:01,898 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:56:01,899 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:56:01,899 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:56:01,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:56:01,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1873098807, now seen corresponding path program 1 times [2018-10-23 17:56:01,900 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:56:01,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:56:01,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:01,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:01,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:56:02,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:56:02,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 17:56:02,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 17:56:02,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 17:56:02,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 17:56:02,137 INFO L87 Difference]: Start difference. First operand 1222 states and 1765 transitions. Second operand 4 states. [2018-10-23 17:56:06,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:56:06,512 INFO L93 Difference]: Finished difference Result 4507 states and 6630 transitions. [2018-10-23 17:56:06,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 17:56:06,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2018-10-23 17:56:06,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:56:06,531 INFO L225 Difference]: With dead ends: 4507 [2018-10-23 17:56:06,532 INFO L226 Difference]: Without dead ends: 3287 [2018-10-23 17:56:06,535 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 17:56:06,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2018-10-23 17:56:06,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 2333. [2018-10-23 17:56:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2018-10-23 17:56:06,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 3059 transitions. [2018-10-23 17:56:06,597 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 3059 transitions. Word has length 85 [2018-10-23 17:56:06,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:56:06,597 INFO L481 AbstractCegarLoop]: Abstraction has 2333 states and 3059 transitions. [2018-10-23 17:56:06,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 17:56:06,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 3059 transitions. [2018-10-23 17:56:06,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-23 17:56:06,602 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:56:06,602 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:56:06,602 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:56:06,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:56:06,603 INFO L82 PathProgramCache]: Analyzing trace with hash -306585817, now seen corresponding path program 1 times [2018-10-23 17:56:06,603 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:56:06,603 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:56:06,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:06,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:06,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:06,907 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-23 17:56:06,924 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:56:06,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:56:06,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 17:56:06,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 17:56:06,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 17:56:06,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 17:56:06,928 INFO L87 Difference]: Start difference. First operand 2333 states and 3059 transitions. Second operand 4 states. [2018-10-23 17:56:09,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:56:09,816 INFO L93 Difference]: Finished difference Result 6539 states and 9024 transitions. [2018-10-23 17:56:09,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 17:56:09,817 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2018-10-23 17:56:09,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:56:09,840 INFO L225 Difference]: With dead ends: 6539 [2018-10-23 17:56:09,841 INFO L226 Difference]: Without dead ends: 4393 [2018-10-23 17:56:09,845 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 17:56:09,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2018-10-23 17:56:09,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 3444. [2018-10-23 17:56:09,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3444 states. [2018-10-23 17:56:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4414 transitions. [2018-10-23 17:56:09,919 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4414 transitions. Word has length 136 [2018-10-23 17:56:09,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:56:09,920 INFO L481 AbstractCegarLoop]: Abstraction has 3444 states and 4414 transitions. [2018-10-23 17:56:09,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 17:56:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4414 transitions. [2018-10-23 17:56:09,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-10-23 17:56:09,924 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:56:09,924 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:56:09,925 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:56:09,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:56:09,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1995695159, now seen corresponding path program 1 times [2018-10-23 17:56:09,925 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:56:09,925 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:56:09,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:09,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:09,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-23 17:56:10,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:56:10,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 17:56:10,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 17:56:10,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 17:56:10,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 17:56:10,143 INFO L87 Difference]: Start difference. First operand 3444 states and 4414 transitions. Second operand 3 states. [2018-10-23 17:56:12,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:56:12,685 INFO L93 Difference]: Finished difference Result 7822 states and 10140 transitions. [2018-10-23 17:56:12,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 17:56:12,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2018-10-23 17:56:12,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:56:12,707 INFO L225 Difference]: With dead ends: 7822 [2018-10-23 17:56:12,708 INFO L226 Difference]: Without dead ends: 4565 [2018-10-23 17:56:12,713 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 17:56:12,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4565 states. [2018-10-23 17:56:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4565 to 4555. [2018-10-23 17:56:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4555 states. [2018-10-23 17:56:12,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4555 states to 4555 states and 5700 transitions. [2018-10-23 17:56:12,800 INFO L78 Accepts]: Start accepts. Automaton has 4555 states and 5700 transitions. Word has length 191 [2018-10-23 17:56:12,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:56:12,801 INFO L481 AbstractCegarLoop]: Abstraction has 4555 states and 5700 transitions. [2018-10-23 17:56:12,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 17:56:12,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4555 states and 5700 transitions. [2018-10-23 17:56:12,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-23 17:56:12,804 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:56:12,805 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:56:12,805 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:56:12,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:56:12,805 INFO L82 PathProgramCache]: Analyzing trace with hash 887108873, now seen corresponding path program 1 times [2018-10-23 17:56:12,805 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:56:12,806 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:56:12,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:12,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:12,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 11 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:56:13,453 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 17:56:13,453 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 17:56:13,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:13,553 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 17:56:14,094 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 28 [2018-10-23 17:56:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 11 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:56:14,528 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 17:56:14,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2018-10-23 17:56:14,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 17:56:14,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 17:56:14,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-23 17:56:14,530 INFO L87 Difference]: Start difference. First operand 4555 states and 5700 transitions. Second operand 7 states. [2018-10-23 17:56:14,760 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-10-23 17:56:30,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:56:30,170 INFO L93 Difference]: Finished difference Result 13952 states and 18059 transitions. [2018-10-23 17:56:30,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 17:56:30,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2018-10-23 17:56:30,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:56:30,209 INFO L225 Difference]: With dead ends: 13952 [2018-10-23 17:56:30,210 INFO L226 Difference]: Without dead ends: 8834 [2018-10-23 17:56:30,217 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-10-23 17:56:30,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8834 states. [2018-10-23 17:56:30,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8834 to 8642. [2018-10-23 17:56:30,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8642 states. [2018-10-23 17:56:30,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8642 states to 8642 states and 10369 transitions. [2018-10-23 17:56:30,380 INFO L78 Accepts]: Start accepts. Automaton has 8642 states and 10369 transitions. Word has length 192 [2018-10-23 17:56:30,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:56:30,381 INFO L481 AbstractCegarLoop]: Abstraction has 8642 states and 10369 transitions. [2018-10-23 17:56:30,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 17:56:30,381 INFO L276 IsEmpty]: Start isEmpty. Operand 8642 states and 10369 transitions. [2018-10-23 17:56:30,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-10-23 17:56:30,384 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:56:30,385 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:56:30,385 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:56:30,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:56:30,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1124216912, now seen corresponding path program 1 times [2018-10-23 17:56:30,385 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:56:30,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:56:30,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:30,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:30,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-10-23 17:56:30,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:56:30,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 17:56:30,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 17:56:30,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 17:56:30,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 17:56:30,583 INFO L87 Difference]: Start difference. First operand 8642 states and 10369 transitions. Second operand 3 states. [2018-10-23 17:56:31,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:56:31,988 INFO L93 Difference]: Finished difference Result 18219 states and 21913 transitions. [2018-10-23 17:56:31,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 17:56:31,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2018-10-23 17:56:31,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:56:32,024 INFO L225 Difference]: With dead ends: 18219 [2018-10-23 17:56:32,024 INFO L226 Difference]: Without dead ends: 9764 [2018-10-23 17:56:32,034 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 17:56:32,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9764 states. [2018-10-23 17:56:32,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9764 to 9579. [2018-10-23 17:56:32,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9579 states. [2018-10-23 17:56:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9579 states to 9579 states and 11372 transitions. [2018-10-23 17:56:32,207 INFO L78 Accepts]: Start accepts. Automaton has 9579 states and 11372 transitions. Word has length 202 [2018-10-23 17:56:32,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:56:32,207 INFO L481 AbstractCegarLoop]: Abstraction has 9579 states and 11372 transitions. [2018-10-23 17:56:32,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 17:56:32,208 INFO L276 IsEmpty]: Start isEmpty. Operand 9579 states and 11372 transitions. [2018-10-23 17:56:32,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-23 17:56:32,211 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:56:32,211 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:56:32,211 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:56:32,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:56:32,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1704410693, now seen corresponding path program 1 times [2018-10-23 17:56:32,212 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:56:32,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:56:32,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:32,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:32,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-10-23 17:56:32,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:56:32,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 17:56:32,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 17:56:32,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 17:56:32,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 17:56:32,408 INFO L87 Difference]: Start difference. First operand 9579 states and 11372 transitions. Second operand 3 states. [2018-10-23 17:56:36,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:56:36,201 INFO L93 Difference]: Finished difference Result 18975 states and 22559 transitions. [2018-10-23 17:56:36,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 17:56:36,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2018-10-23 17:56:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:56:36,231 INFO L225 Difference]: With dead ends: 18975 [2018-10-23 17:56:36,231 INFO L226 Difference]: Without dead ends: 9583 [2018-10-23 17:56:36,240 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 17:56:36,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9583 states. [2018-10-23 17:56:36,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9583 to 9578. [2018-10-23 17:56:36,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9578 states. [2018-10-23 17:56:36,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9578 states to 9578 states and 11042 transitions. [2018-10-23 17:56:36,363 INFO L78 Accepts]: Start accepts. Automaton has 9578 states and 11042 transitions. Word has length 203 [2018-10-23 17:56:36,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:56:36,363 INFO L481 AbstractCegarLoop]: Abstraction has 9578 states and 11042 transitions. [2018-10-23 17:56:36,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 17:56:36,364 INFO L276 IsEmpty]: Start isEmpty. Operand 9578 states and 11042 transitions. [2018-10-23 17:56:36,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-10-23 17:56:36,366 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:56:36,367 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:56:36,367 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:56:36,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:56:36,367 INFO L82 PathProgramCache]: Analyzing trace with hash -433997519, now seen corresponding path program 1 times [2018-10-23 17:56:36,368 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:56:36,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:56:36,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:36,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:36,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:36,841 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-10-23 17:56:36,898 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:56:36,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:56:36,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 17:56:36,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 17:56:36,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 17:56:36,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 17:56:36,899 INFO L87 Difference]: Start difference. First operand 9578 states and 11042 transitions. Second operand 5 states. [2018-10-23 17:56:39,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:56:39,402 INFO L93 Difference]: Finished difference Result 20289 states and 23571 transitions. [2018-10-23 17:56:39,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 17:56:39,402 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 207 [2018-10-23 17:56:39,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:56:39,421 INFO L225 Difference]: With dead ends: 20289 [2018-10-23 17:56:39,422 INFO L226 Difference]: Without dead ends: 10898 [2018-10-23 17:56:39,431 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 17:56:39,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10898 states. [2018-10-23 17:56:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10898 to 10511. [2018-10-23 17:56:39,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10511 states. [2018-10-23 17:56:39,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10511 states to 10511 states and 12127 transitions. [2018-10-23 17:56:39,567 INFO L78 Accepts]: Start accepts. Automaton has 10511 states and 12127 transitions. Word has length 207 [2018-10-23 17:56:39,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:56:39,567 INFO L481 AbstractCegarLoop]: Abstraction has 10511 states and 12127 transitions. [2018-10-23 17:56:39,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 17:56:39,568 INFO L276 IsEmpty]: Start isEmpty. Operand 10511 states and 12127 transitions. [2018-10-23 17:56:39,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-10-23 17:56:39,571 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:56:39,572 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:56:39,572 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:56:39,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:56:39,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1999411343, now seen corresponding path program 1 times [2018-10-23 17:56:39,572 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:56:39,573 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:56:39,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:39,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:39,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:56:39,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:56:39,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 17:56:39,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 17:56:39,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 17:56:39,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 17:56:39,899 INFO L87 Difference]: Start difference. First operand 10511 states and 12127 transitions. Second operand 4 states. [2018-10-23 17:56:41,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:56:41,735 INFO L93 Difference]: Finished difference Result 21026 states and 24269 transitions. [2018-10-23 17:56:41,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 17:56:41,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 223 [2018-10-23 17:56:41,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:56:41,751 INFO L225 Difference]: With dead ends: 21026 [2018-10-23 17:56:41,751 INFO L226 Difference]: Without dead ends: 10702 [2018-10-23 17:56:41,761 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 17:56:41,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10702 states. [2018-10-23 17:56:41,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10702 to 8094. [2018-10-23 17:56:41,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8094 states. [2018-10-23 17:56:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8094 states to 8094 states and 9193 transitions. [2018-10-23 17:56:41,864 INFO L78 Accepts]: Start accepts. Automaton has 8094 states and 9193 transitions. Word has length 223 [2018-10-23 17:56:41,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:56:41,864 INFO L481 AbstractCegarLoop]: Abstraction has 8094 states and 9193 transitions. [2018-10-23 17:56:41,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 17:56:41,865 INFO L276 IsEmpty]: Start isEmpty. Operand 8094 states and 9193 transitions. [2018-10-23 17:56:41,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-10-23 17:56:41,870 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:56:41,870 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:56:41,871 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:56:41,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:56:41,871 INFO L82 PathProgramCache]: Analyzing trace with hash 2034800281, now seen corresponding path program 1 times [2018-10-23 17:56:41,871 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:56:41,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:56:41,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:41,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:41,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:42,319 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-23 17:56:42,600 WARN L179 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-10-23 17:56:42,987 WARN L179 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2018-10-23 17:56:43,125 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 76 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:56:43,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 17:56:43,126 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 17:56:43,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:43,245 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 17:56:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 11 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:56:43,645 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 17:56:43,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2018-10-23 17:56:43,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-23 17:56:43,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-23 17:56:43,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-10-23 17:56:43,647 INFO L87 Difference]: Start difference. First operand 8094 states and 9193 transitions. Second operand 9 states. [2018-10-23 17:56:53,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:56:53,513 INFO L93 Difference]: Finished difference Result 21424 states and 24290 transitions. [2018-10-23 17:56:53,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-23 17:56:53,513 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 247 [2018-10-23 17:56:53,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:56:53,527 INFO L225 Difference]: With dead ends: 21424 [2018-10-23 17:56:53,527 INFO L226 Difference]: Without dead ends: 13332 [2018-10-23 17:56:53,536 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2018-10-23 17:56:53,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13332 states. [2018-10-23 17:56:53,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13332 to 11124. [2018-10-23 17:56:53,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11124 states. [2018-10-23 17:56:53,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11124 states to 11124 states and 12538 transitions. [2018-10-23 17:56:53,686 INFO L78 Accepts]: Start accepts. Automaton has 11124 states and 12538 transitions. Word has length 247 [2018-10-23 17:56:53,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:56:53,687 INFO L481 AbstractCegarLoop]: Abstraction has 11124 states and 12538 transitions. [2018-10-23 17:56:53,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-23 17:56:53,687 INFO L276 IsEmpty]: Start isEmpty. Operand 11124 states and 12538 transitions. [2018-10-23 17:56:53,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-10-23 17:56:53,695 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:56:53,695 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:56:53,696 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:56:53,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:56:53,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1359647880, now seen corresponding path program 1 times [2018-10-23 17:56:53,696 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:56:53,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:56:53,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:53,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:53,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:54,320 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2018-10-23 17:56:54,381 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-10-23 17:56:54,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:56:54,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 17:56:54,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 17:56:54,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 17:56:54,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 17:56:54,383 INFO L87 Difference]: Start difference. First operand 11124 states and 12538 transitions. Second operand 5 states. [2018-10-23 17:56:56,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:56:56,406 INFO L93 Difference]: Finished difference Result 22894 states and 25865 transitions. [2018-10-23 17:56:56,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 17:56:56,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2018-10-23 17:56:56,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:56:56,418 INFO L225 Difference]: With dead ends: 22894 [2018-10-23 17:56:56,419 INFO L226 Difference]: Without dead ends: 11772 [2018-10-23 17:56:56,427 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 17:56:56,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11772 states. [2018-10-23 17:56:56,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11772 to 10845. [2018-10-23 17:56:56,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10845 states. [2018-10-23 17:56:56,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10845 states to 10845 states and 12152 transitions. [2018-10-23 17:56:56,535 INFO L78 Accepts]: Start accepts. Automaton has 10845 states and 12152 transitions. Word has length 273 [2018-10-23 17:56:56,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:56:56,536 INFO L481 AbstractCegarLoop]: Abstraction has 10845 states and 12152 transitions. [2018-10-23 17:56:56,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 17:56:56,536 INFO L276 IsEmpty]: Start isEmpty. Operand 10845 states and 12152 transitions. [2018-10-23 17:56:56,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-10-23 17:56:56,544 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:56:56,544 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:56:56,545 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:56:56,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:56:56,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1926828977, now seen corresponding path program 1 times [2018-10-23 17:56:56,545 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:56:56,545 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:56:56,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:56,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:56,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:56:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-10-23 17:56:56,861 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 17:56:56,861 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 17:56:56,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:56:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:56:56,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 17:56:57,608 WARN L179 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 30 [2018-10-23 17:56:58,092 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 19 [2018-10-23 17:56:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 95 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:56:58,553 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 17:56:58,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2018-10-23 17:56:58,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 17:56:58,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 17:56:58,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-23 17:56:58,555 INFO L87 Difference]: Start difference. First operand 10845 states and 12152 transitions. Second operand 7 states. [2018-10-23 17:57:04,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:57:04,406 INFO L93 Difference]: Finished difference Result 33161 states and 37017 transitions. [2018-10-23 17:57:04,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-23 17:57:04,414 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 292 [2018-10-23 17:57:04,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:57:04,439 INFO L225 Difference]: With dead ends: 33161 [2018-10-23 17:57:04,439 INFO L226 Difference]: Without dead ends: 22318 [2018-10-23 17:57:04,450 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-10-23 17:57:04,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22318 states. [2018-10-23 17:57:04,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22318 to 18230. [2018-10-23 17:57:04,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18230 states. [2018-10-23 17:57:04,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18230 states to 18230 states and 20194 transitions. [2018-10-23 17:57:04,659 INFO L78 Accepts]: Start accepts. Automaton has 18230 states and 20194 transitions. Word has length 292 [2018-10-23 17:57:04,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:57:04,660 INFO L481 AbstractCegarLoop]: Abstraction has 18230 states and 20194 transitions. [2018-10-23 17:57:04,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 17:57:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 18230 states and 20194 transitions. [2018-10-23 17:57:04,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-10-23 17:57:04,668 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:57:04,668 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:57:04,669 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:57:04,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:57:04,669 INFO L82 PathProgramCache]: Analyzing trace with hash -322464146, now seen corresponding path program 1 times [2018-10-23 17:57:04,669 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:57:04,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:57:04,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:04,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:57:04,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:57:05,120 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 17 proven. 141 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-10-23 17:57:05,120 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 17:57:05,121 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 17:57:05,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:57:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:57:05,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 17:57:05,577 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 483 DAG size of output: 28 [2018-10-23 17:57:05,885 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 17 proven. 141 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-10-23 17:57:05,907 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 17:57:05,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2018-10-23 17:57:05,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 17:57:05,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 17:57:05,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-23 17:57:05,908 INFO L87 Difference]: Start difference. First operand 18230 states and 20194 transitions. Second operand 7 states. [2018-10-23 17:57:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:57:10,598 INFO L93 Difference]: Finished difference Result 42386 states and 46842 transitions. [2018-10-23 17:57:10,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 17:57:10,599 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 300 [2018-10-23 17:57:10,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:57:10,615 INFO L225 Difference]: With dead ends: 42386 [2018-10-23 17:57:10,615 INFO L226 Difference]: Without dead ends: 15464 [2018-10-23 17:57:10,628 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 298 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-23 17:57:10,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15464 states. [2018-10-23 17:57:10,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15464 to 7754. [2018-10-23 17:57:10,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7754 states. [2018-10-23 17:57:10,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7754 states to 7754 states and 8578 transitions. [2018-10-23 17:57:10,766 INFO L78 Accepts]: Start accepts. Automaton has 7754 states and 8578 transitions. Word has length 300 [2018-10-23 17:57:10,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:57:10,767 INFO L481 AbstractCegarLoop]: Abstraction has 7754 states and 8578 transitions. [2018-10-23 17:57:10,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 17:57:10,767 INFO L276 IsEmpty]: Start isEmpty. Operand 7754 states and 8578 transitions. [2018-10-23 17:57:10,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2018-10-23 17:57:10,772 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:57:10,773 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:57:10,773 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:57:10,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:57:10,774 INFO L82 PathProgramCache]: Analyzing trace with hash -788140, now seen corresponding path program 1 times [2018-10-23 17:57:10,774 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:57:10,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:57:10,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:10,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:57:10,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:57:11,068 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-23 17:57:11,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:57:11,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 17:57:11,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 17:57:11,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 17:57:11,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 17:57:11,070 INFO L87 Difference]: Start difference. First operand 7754 states and 8578 transitions. Second operand 5 states. [2018-10-23 17:57:13,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:57:13,183 INFO L93 Difference]: Finished difference Result 20337 states and 22505 transitions. [2018-10-23 17:57:13,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 17:57:13,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 306 [2018-10-23 17:57:13,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:57:13,197 INFO L225 Difference]: With dead ends: 20337 [2018-10-23 17:57:13,197 INFO L226 Difference]: Without dead ends: 12770 [2018-10-23 17:57:13,204 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 17:57:13,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12770 states. [2018-10-23 17:57:13,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12770 to 9976. [2018-10-23 17:57:13,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9976 states. [2018-10-23 17:57:13,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9976 states to 9976 states and 10817 transitions. [2018-10-23 17:57:13,340 INFO L78 Accepts]: Start accepts. Automaton has 9976 states and 10817 transitions. Word has length 306 [2018-10-23 17:57:13,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:57:13,341 INFO L481 AbstractCegarLoop]: Abstraction has 9976 states and 10817 transitions. [2018-10-23 17:57:13,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 17:57:13,341 INFO L276 IsEmpty]: Start isEmpty. Operand 9976 states and 10817 transitions. [2018-10-23 17:57:13,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2018-10-23 17:57:13,345 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:57:13,345 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:57:13,346 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:57:13,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:57:13,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1650794451, now seen corresponding path program 1 times [2018-10-23 17:57:13,346 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:57:13,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:57:13,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:13,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:57:13,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:57:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-10-23 17:57:13,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:57:13,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 17:57:13,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 17:57:13,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 17:57:13,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 17:57:13,564 INFO L87 Difference]: Start difference. First operand 9976 states and 10817 transitions. Second operand 3 states. [2018-10-23 17:57:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:57:14,538 INFO L93 Difference]: Finished difference Result 20519 states and 22253 transitions. [2018-10-23 17:57:14,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 17:57:14,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 315 [2018-10-23 17:57:14,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:57:14,546 INFO L225 Difference]: With dead ends: 20519 [2018-10-23 17:57:14,547 INFO L226 Difference]: Without dead ends: 10730 [2018-10-23 17:57:14,553 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 17:57:14,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10730 states. [2018-10-23 17:57:14,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10730 to 10136. [2018-10-23 17:57:14,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10136 states. [2018-10-23 17:57:14,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10136 states to 10136 states and 10953 transitions. [2018-10-23 17:57:14,666 INFO L78 Accepts]: Start accepts. Automaton has 10136 states and 10953 transitions. Word has length 315 [2018-10-23 17:57:14,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:57:14,667 INFO L481 AbstractCegarLoop]: Abstraction has 10136 states and 10953 transitions. [2018-10-23 17:57:14,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 17:57:14,667 INFO L276 IsEmpty]: Start isEmpty. Operand 10136 states and 10953 transitions. [2018-10-23 17:57:14,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-10-23 17:57:14,672 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:57:14,673 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:57:14,673 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:57:14,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:57:14,673 INFO L82 PathProgramCache]: Analyzing trace with hash 331991605, now seen corresponding path program 1 times [2018-10-23 17:57:14,673 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:57:14,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:57:14,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:14,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:57:14,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:57:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 87 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:57:15,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 17:57:15,668 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 17:57:15,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:57:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:57:15,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 17:57:16,306 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-23 17:57:16,854 WARN L179 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 22 [2018-10-23 17:57:17,320 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 116 proven. 167 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:57:17,351 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 17:57:17,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2018-10-23 17:57:17,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-23 17:57:17,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-23 17:57:17,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-10-23 17:57:17,353 INFO L87 Difference]: Start difference. First operand 10136 states and 10953 transitions. Second operand 12 states. [2018-10-23 17:57:23,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:57:23,253 INFO L93 Difference]: Finished difference Result 21201 states and 22880 transitions. [2018-10-23 17:57:23,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-23 17:57:23,254 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 342 [2018-10-23 17:57:23,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:57:23,263 INFO L225 Difference]: With dead ends: 21201 [2018-10-23 17:57:23,263 INFO L226 Difference]: Without dead ends: 11250 [2018-10-23 17:57:23,269 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 338 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=207, Invalid=443, Unknown=0, NotChecked=0, Total=650 [2018-10-23 17:57:23,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11250 states. [2018-10-23 17:57:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11250 to 8638. [2018-10-23 17:57:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8638 states. [2018-10-23 17:57:23,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8638 states to 8638 states and 9258 transitions. [2018-10-23 17:57:23,358 INFO L78 Accepts]: Start accepts. Automaton has 8638 states and 9258 transitions. Word has length 342 [2018-10-23 17:57:23,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:57:23,358 INFO L481 AbstractCegarLoop]: Abstraction has 8638 states and 9258 transitions. [2018-10-23 17:57:23,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-23 17:57:23,359 INFO L276 IsEmpty]: Start isEmpty. Operand 8638 states and 9258 transitions. [2018-10-23 17:57:23,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2018-10-23 17:57:23,363 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:57:23,363 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-23 17:57:23,363 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:57:23,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:57:23,364 INFO L82 PathProgramCache]: Analyzing trace with hash -2023605052, now seen corresponding path program 1 times [2018-10-23 17:57:23,364 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:57:23,364 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:57:23,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:23,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:57:23,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:57:23,814 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2018-10-23 17:57:23,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 17:57:23,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 17:57:23,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 17:57:23,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 17:57:23,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 17:57:23,816 INFO L87 Difference]: Start difference. First operand 8638 states and 9258 transitions. Second operand 5 states. [2018-10-23 17:57:27,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 17:57:27,769 INFO L93 Difference]: Finished difference Result 22764 states and 24367 transitions. [2018-10-23 17:57:27,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 17:57:27,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 351 [2018-10-23 17:57:27,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 17:57:27,780 INFO L225 Difference]: With dead ends: 22764 [2018-10-23 17:57:27,780 INFO L226 Difference]: Without dead ends: 11521 [2018-10-23 17:57:27,786 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 17:57:27,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11521 states. [2018-10-23 17:57:27,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11521 to 10036. [2018-10-23 17:57:27,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10036 states. [2018-10-23 17:57:27,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10036 states to 10036 states and 10629 transitions. [2018-10-23 17:57:27,881 INFO L78 Accepts]: Start accepts. Automaton has 10036 states and 10629 transitions. Word has length 351 [2018-10-23 17:57:27,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 17:57:27,881 INFO L481 AbstractCegarLoop]: Abstraction has 10036 states and 10629 transitions. [2018-10-23 17:57:27,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 17:57:27,881 INFO L276 IsEmpty]: Start isEmpty. Operand 10036 states and 10629 transitions. [2018-10-23 17:57:27,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2018-10-23 17:57:27,887 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 17:57:27,887 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 17:57:27,887 INFO L424 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 17:57:27,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 17:57:27,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1483352725, now seen corresponding path program 1 times [2018-10-23 17:57:27,888 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 17:57:27,888 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 17:57:27,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:27,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:57:27,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 17:57:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:57:28,490 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 88 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:57:28,490 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 17:57:28,490 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 17:57:28,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 17:57:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 17:57:28,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 17:57:31,872 WARN L179 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2018-10-23 17:57:32,882 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 88 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 17:57:32,904 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 17:57:32,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2018-10-23 17:57:32,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-23 17:57:32,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-23 17:57:32,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=41, Unknown=2, NotChecked=0, Total=72 [2018-10-23 17:57:32,906 INFO L87 Difference]: Start difference. First operand 10036 states and 10629 transitions. Second operand 9 states. [2018-10-23 17:57:34,211 WARN L179 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 20 Received shutdown request... [2018-10-23 17:59:59,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-23 17:59:59,426 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 17:59:59,430 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 17:59:59,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 05:59:59 BoogieIcfgContainer [2018-10-23 17:59:59,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 17:59:59,431 INFO L168 Benchmark]: Toolchain (without parser) took 250655.49 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -881.5 MB). Peak memory consumption was 876.9 MB. Max. memory is 7.1 GB. [2018-10-23 17:59:59,432 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 17:59:59,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 959.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-23 17:59:59,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 271.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -854.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-23 17:59:59,434 INFO L168 Benchmark]: Boogie Preprocessor took 119.40 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 17:59:59,435 INFO L168 Benchmark]: RCFGBuilder took 4751.26 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 197.2 MB). Peak memory consumption was 197.2 MB. Max. memory is 7.1 GB. [2018-10-23 17:59:59,436 INFO L168 Benchmark]: TraceAbstraction took 244547.15 ms. Allocated memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: 998.8 MB). Free memory was 2.0 GB in the beginning and 2.3 GB in the end (delta: -287.7 MB). Peak memory consumption was 711.1 MB. Max. memory is 7.1 GB. [2018-10-23 17:59:59,440 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 959.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 271.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -854.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.40 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4751.26 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 197.2 MB). Peak memory consumption was 197.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244547.15 ms. Allocated memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: 998.8 MB). Free memory was 2.0 GB in the beginning and 2.3 GB in the end (delta: -287.7 MB). Peak memory consumption was 711.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 27). Cancelled while BasicCegarLoop was constructing difference of abstraction (10036states) and FLOYD_HOARE automaton (currently 10 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (10351 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. TIMEOUT Result, 244.4s OverallTime, 19 OverallIterations, 4 TraceHistogramMax, 223.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5223 SDtfs, 15790 SDslu, 2811 SDs, 0 SdLazy, 33359 SolverSat, 4816 SolverUnsat, 183 SolverUnknown, 0 SolverNotchecked, 210.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1867 GetRequests, 1761 SyntacticMatches, 7 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18230occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 18 MinimizatonAttempts, 27725 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 6095 NumberOfCodeBlocks, 6095 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 6070 ConstructedInterpolants, 587 QuantifiedInterpolants, 14438419 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2419 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 25 InterpolantComputations, 13 PerfectInterpolantSequences, 2355/3707 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown