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/Problem13_label12_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:08:00,809 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:08:00,811 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:08:00,825 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:08:00,825 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:08:00,826 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:08:00,828 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:08:00,829 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:08:00,831 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:08:00,832 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:08:00,833 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:08:00,835 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:08:00,835 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:08:00,837 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:08:00,838 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:08:00,839 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:08:00,842 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:08:00,850 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:08:00,852 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:08:00,857 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:08:00,860 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:08:00,862 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:08:00,865 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 14:08:00,877 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 14:08:00,877 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 14:08:00,878 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 14:08:00,879 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 14:08:00,879 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 [2018-10-24 14:08:00,906 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:08:00,907 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:08:00,907 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:08:00,908 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:08:00,908 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:08:00,908 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:08:00,909 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:08:00,909 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:08:00,909 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:08:00,909 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:08:00,909 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:08:00,910 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:08:00,910 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:08:00,910 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:08:00,910 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:08:00,910 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:08:00,911 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:08:00,911 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:08:00,911 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:08:00,911 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:08:00,911 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:08:00,912 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:08:00,912 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:08:00,912 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:08:00,912 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:08:00,912 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:08:00,913 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:08:00,913 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:08:00,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:08:00,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:08:00,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:08:00,987 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:08:00,988 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:08:00,988 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label12_false-unreach-call.c [2018-10-24 14:08:01,044 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/72aef1c59/81bbcdf712c144399c6c5106ff13bc92/FLAG7357cb5f5 [2018-10-24 14:08:01,842 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:08:01,843 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label12_false-unreach-call.c [2018-10-24 14:08:01,890 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/72aef1c59/81bbcdf712c144399c6c5106ff13bc92/FLAG7357cb5f5 [2018-10-24 14:08:01,907 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/72aef1c59/81bbcdf712c144399c6c5106ff13bc92 [2018-10-24 14:08:01,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:08:01,920 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:08:01,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:08:01,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:08:01,925 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:08:01,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:08:01" (1/1) ... [2018-10-24 14:08:01,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4a8908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:01, skipping insertion in model container [2018-10-24 14:08:01,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:08:01" (1/1) ... [2018-10-24 14:08:01,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:08:02,100 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:08:03,424 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:08:03,431 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:08:04,185 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:08:04,219 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:08:04,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04 WrapperNode [2018-10-24 14:08:04,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:08:04,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:08:04,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:08:04,221 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:08:04,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04" (1/1) ... [2018-10-24 14:08:04,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04" (1/1) ... [2018-10-24 14:08:05,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:08:05,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:08:05,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:08:05,109 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:08:05,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04" (1/1) ... [2018-10-24 14:08:05,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04" (1/1) ... [2018-10-24 14:08:05,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04" (1/1) ... [2018-10-24 14:08:05,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04" (1/1) ... [2018-10-24 14:08:05,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04" (1/1) ... [2018-10-24 14:08:05,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04" (1/1) ... [2018-10-24 14:08:05,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04" (1/1) ... [2018-10-24 14:08:05,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:08:05,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:08:05,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:08:05,702 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:08:05,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04" (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 [2018-10-24 14:08:05,779 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:08:05,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:08:05,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:08:23,189 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:08:23,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:08:23 BoogieIcfgContainer [2018-10-24 14:08:23,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:08:23,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:08:23,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:08:23,196 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:08:23,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:08:01" (1/3) ... [2018-10-24 14:08:23,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68234fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:08:23, skipping insertion in model container [2018-10-24 14:08:23,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:04" (2/3) ... [2018-10-24 14:08:23,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68234fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:08:23, skipping insertion in model container [2018-10-24 14:08:23,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:08:23" (3/3) ... [2018-10-24 14:08:23,200 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label12_false-unreach-call.c [2018-10-24 14:08:23,212 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:08:23,224 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:08:23,244 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:08:23,293 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:08:23,294 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:08:23,294 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:08:23,294 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:08:23,294 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:08:23,295 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:08:23,295 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:08:23,295 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:08:23,295 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:08:23,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 14:08:23,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-24 14:08:23,361 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:23,362 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:08:23,365 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:23,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:23,372 INFO L82 PathProgramCache]: Analyzing trace with hash -974970054, now seen corresponding path program 1 times [2018-10-24 14:08:23,374 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:23,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:23,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:23,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:23,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:23,746 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 14:08:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:08:23,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:23,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:08:23,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:08:23,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:08:23,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:08:23,778 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-24 14:08:38,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:38,992 INFO L93 Difference]: Finished difference Result 3870 states and 7276 transitions. [2018-10-24 14:08:38,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:08:38,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-24 14:08:38,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:39,039 INFO L225 Difference]: With dead ends: 3870 [2018-10-24 14:08:39,040 INFO L226 Difference]: Without dead ends: 2764 [2018-10-24 14:08:39,050 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 [2018-10-24 14:08:39,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2018-10-24 14:08:39,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2736. [2018-10-24 14:08:39,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2736 states. [2018-10-24 14:08:39,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 4487 transitions. [2018-10-24 14:08:39,235 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 4487 transitions. Word has length 10 [2018-10-24 14:08:39,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:39,235 INFO L481 AbstractCegarLoop]: Abstraction has 2736 states and 4487 transitions. [2018-10-24 14:08:39,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:08:39,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 4487 transitions. [2018-10-24 14:08:39,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-24 14:08:39,243 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:39,243 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:08:39,244 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:39,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:39,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1128094082, now seen corresponding path program 1 times [2018-10-24 14:08:39,246 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:39,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:39,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:39,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:39,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:39,886 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-24 14:08:40,198 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-24 14:08:40,401 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:08:40,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:40,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:08:40,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:08:40,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:08:40,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:08:40,405 INFO L87 Difference]: Start difference. First operand 2736 states and 4487 transitions. Second operand 5 states. [2018-10-24 14:08:40,653 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 14:08:57,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:57,526 INFO L93 Difference]: Finished difference Result 9428 states and 14930 transitions. [2018-10-24 14:08:57,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:08:57,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2018-10-24 14:08:57,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:57,560 INFO L225 Difference]: With dead ends: 9428 [2018-10-24 14:08:57,560 INFO L226 Difference]: Without dead ends: 6694 [2018-10-24 14:08:57,565 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:08:57,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6694 states. [2018-10-24 14:08:57,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6694 to 6693. [2018-10-24 14:08:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6693 states. [2018-10-24 14:08:57,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 9417 transitions. [2018-10-24 14:08:57,688 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 9417 transitions. Word has length 116 [2018-10-24 14:08:57,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:57,688 INFO L481 AbstractCegarLoop]: Abstraction has 6693 states and 9417 transitions. [2018-10-24 14:08:57,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:08:57,689 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 9417 transitions. [2018-10-24 14:08:57,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-10-24 14:08:57,696 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:57,696 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:08:57,696 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:57,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:57,697 INFO L82 PathProgramCache]: Analyzing trace with hash -8705480, now seen corresponding path program 1 times [2018-10-24 14:08:57,697 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:57,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:57,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:57,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:57,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:58,004 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:08:58,004 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:58,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:08:58,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:08:58,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:08:58,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:08:58,006 INFO L87 Difference]: Start difference. First operand 6693 states and 9417 transitions. Second operand 4 states. [2018-10-24 14:09:08,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:08,738 INFO L93 Difference]: Finished difference Result 15792 states and 23310 transitions. [2018-10-24 14:09:08,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:09:08,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2018-10-24 14:09:08,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:08,785 INFO L225 Difference]: With dead ends: 15792 [2018-10-24 14:09:08,785 INFO L226 Difference]: Without dead ends: 9889 [2018-10-24 14:09:08,793 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:09:08,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9889 states. [2018-10-24 14:09:08,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9889 to 9863. [2018-10-24 14:09:08,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9863 states. [2018-10-24 14:09:09,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9863 states to 9863 states and 13541 transitions. [2018-10-24 14:09:09,003 INFO L78 Accepts]: Start accepts. Automaton has 9863 states and 13541 transitions. Word has length 186 [2018-10-24 14:09:09,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:09,004 INFO L481 AbstractCegarLoop]: Abstraction has 9863 states and 13541 transitions. [2018-10-24 14:09:09,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:09:09,004 INFO L276 IsEmpty]: Start isEmpty. Operand 9863 states and 13541 transitions. [2018-10-24 14:09:09,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-10-24 14:09:09,008 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:09,008 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:09:09,008 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:09,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:09,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1270177874, now seen corresponding path program 1 times [2018-10-24 14:09:09,009 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:09,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:09,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:09,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:09,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:09,456 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 14:09:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:09:09,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:09:09,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:09:09,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:09:09,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:09:09,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:09:09,492 INFO L87 Difference]: Start difference. First operand 9863 states and 13541 transitions. Second operand 5 states. [2018-10-24 14:09:29,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:29,643 INFO L93 Difference]: Finished difference Result 43674 states and 61710 transitions. [2018-10-24 14:09:29,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:09:29,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 193 [2018-10-24 14:09:29,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:29,737 INFO L225 Difference]: With dead ends: 43674 [2018-10-24 14:09:29,737 INFO L226 Difference]: Without dead ends: 34601 [2018-10-24 14:09:29,755 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:09:29,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34601 states. [2018-10-24 14:09:30,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34601 to 34417. [2018-10-24 14:09:30,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34417 states. [2018-10-24 14:09:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34417 states to 34417 states and 45209 transitions. [2018-10-24 14:09:30,392 INFO L78 Accepts]: Start accepts. Automaton has 34417 states and 45209 transitions. Word has length 193 [2018-10-24 14:09:30,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:30,392 INFO L481 AbstractCegarLoop]: Abstraction has 34417 states and 45209 transitions. [2018-10-24 14:09:30,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:09:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand 34417 states and 45209 transitions. [2018-10-24 14:09:30,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-10-24 14:09:30,398 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:30,398 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:09:30,398 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:30,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:30,400 INFO L82 PathProgramCache]: Analyzing trace with hash -156215755, now seen corresponding path program 1 times [2018-10-24 14:09:30,400 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:30,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:30,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:30,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:30,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:30,795 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 14:09:30,795 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:09:30,796 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 [2018-10-24 14:09:30,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:30,918 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:09:30,998 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:09:31,033 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:09:31,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:09:31,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:09:31,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:09:31,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:09:31,035 INFO L87 Difference]: Start difference. First operand 34417 states and 45209 transitions. Second operand 4 states. [2018-10-24 14:09:44,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:44,329 INFO L93 Difference]: Finished difference Result 129562 states and 171625 transitions. [2018-10-24 14:09:44,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:09:44,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 216 [2018-10-24 14:09:44,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:44,498 INFO L225 Difference]: With dead ends: 129562 [2018-10-24 14:09:44,498 INFO L226 Difference]: Without dead ends: 95935 [2018-10-24 14:09:44,558 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:09:44,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95935 states. [2018-10-24 14:09:45,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95935 to 65144. [2018-10-24 14:09:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65144 states. [2018-10-24 14:09:45,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65144 states to 65144 states and 80869 transitions. [2018-10-24 14:09:45,604 INFO L78 Accepts]: Start accepts. Automaton has 65144 states and 80869 transitions. Word has length 216 [2018-10-24 14:09:45,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:45,604 INFO L481 AbstractCegarLoop]: Abstraction has 65144 states and 80869 transitions. [2018-10-24 14:09:45,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:09:45,605 INFO L276 IsEmpty]: Start isEmpty. Operand 65144 states and 80869 transitions. [2018-10-24 14:09:45,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-10-24 14:09:45,609 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:45,609 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:09:45,609 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:45,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:45,610 INFO L82 PathProgramCache]: Analyzing trace with hash 984790985, now seen corresponding path program 1 times [2018-10-24 14:09:45,610 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:45,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:45,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:45,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:45,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 14:09:46,355 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:09:46,355 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 [2018-10-24 14:09:46,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:46,445 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:09:46,516 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:09:46,547 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:09:46,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:09:46,548 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:09:46,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:09:46,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:09:46,550 INFO L87 Difference]: Start difference. First operand 65144 states and 80869 transitions. Second operand 4 states. [2018-10-24 14:09:57,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:57,450 INFO L93 Difference]: Finished difference Result 217023 states and 268979 transitions. [2018-10-24 14:09:57,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:09:57,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 222 [2018-10-24 14:09:57,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:57,679 INFO L225 Difference]: With dead ends: 217023 [2018-10-24 14:09:57,680 INFO L226 Difference]: Without dead ends: 152669 [2018-10-24 14:09:57,736 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:09:57,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152669 states. [2018-10-24 14:09:59,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152669 to 116362. [2018-10-24 14:09:59,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116362 states. [2018-10-24 14:09:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116362 states to 116362 states and 139925 transitions. [2018-10-24 14:09:59,537 INFO L78 Accepts]: Start accepts. Automaton has 116362 states and 139925 transitions. Word has length 222 [2018-10-24 14:09:59,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:59,537 INFO L481 AbstractCegarLoop]: Abstraction has 116362 states and 139925 transitions. [2018-10-24 14:09:59,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:09:59,537 INFO L276 IsEmpty]: Start isEmpty. Operand 116362 states and 139925 transitions. [2018-10-24 14:09:59,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-10-24 14:09:59,543 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:59,544 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:09:59,544 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:59,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:59,544 INFO L82 PathProgramCache]: Analyzing trace with hash -452630688, now seen corresponding path program 1 times [2018-10-24 14:09:59,544 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:59,545 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:59,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:59,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:59,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:09:59,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:09:59,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:09:59,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:09:59,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:09:59,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:09:59,745 INFO L87 Difference]: Start difference. First operand 116362 states and 139925 transitions. Second operand 3 states. [2018-10-24 14:10:06,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:06,232 INFO L93 Difference]: Finished difference Result 232703 states and 279677 transitions. [2018-10-24 14:10:06,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:10:06,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 251 [2018-10-24 14:10:06,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:07,274 INFO L225 Difference]: With dead ends: 232703 [2018-10-24 14:10:07,274 INFO L226 Difference]: Without dead ends: 117131 [2018-10-24 14:10:07,323 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 [2018-10-24 14:10:07,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117131 states. [2018-10-24 14:10:08,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117131 to 114761. [2018-10-24 14:10:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114761 states. [2018-10-24 14:10:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114761 states to 114761 states and 130186 transitions. [2018-10-24 14:10:08,419 INFO L78 Accepts]: Start accepts. Automaton has 114761 states and 130186 transitions. Word has length 251 [2018-10-24 14:10:08,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:08,419 INFO L481 AbstractCegarLoop]: Abstraction has 114761 states and 130186 transitions. [2018-10-24 14:10:08,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:10:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 114761 states and 130186 transitions. [2018-10-24 14:10:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-10-24 14:10:08,435 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:08,435 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:10:08,435 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:08,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:08,436 INFO L82 PathProgramCache]: Analyzing trace with hash -622035426, now seen corresponding path program 1 times [2018-10-24 14:10:08,436 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:08,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:08,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:08,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:08,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:08,725 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-10-24 14:10:08,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:10:08,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:10:08,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:10:08,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:10:08,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:10:08,727 INFO L87 Difference]: Start difference. First operand 114761 states and 130186 transitions. Second operand 3 states. [2018-10-24 14:10:16,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:16,188 INFO L93 Difference]: Finished difference Result 308312 states and 350197 transitions. [2018-10-24 14:10:16,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:10:16,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 345 [2018-10-24 14:10:16,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:16,434 INFO L225 Difference]: With dead ends: 308312 [2018-10-24 14:10:16,434 INFO L226 Difference]: Without dead ends: 188015 [2018-10-24 14:10:16,484 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:10:16,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188015 states. [2018-10-24 14:10:17,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188015 to 177760. [2018-10-24 14:10:17,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177760 states. [2018-10-24 14:10:17,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177760 states to 177760 states and 195741 transitions. [2018-10-24 14:10:17,960 INFO L78 Accepts]: Start accepts. Automaton has 177760 states and 195741 transitions. Word has length 345 [2018-10-24 14:10:17,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:17,961 INFO L481 AbstractCegarLoop]: Abstraction has 177760 states and 195741 transitions. [2018-10-24 14:10:17,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:10:17,961 INFO L276 IsEmpty]: Start isEmpty. Operand 177760 states and 195741 transitions. [2018-10-24 14:10:17,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-10-24 14:10:17,971 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:17,971 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:10:17,972 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:17,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:17,972 INFO L82 PathProgramCache]: Analyzing trace with hash -2136935023, now seen corresponding path program 1 times [2018-10-24 14:10:17,972 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:17,972 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:17,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:17,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:17,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:18,374 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 14:10:18,525 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-24 14:10:18,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:10:18,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:10:18,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:10:18,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:10:18,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:10:18,527 INFO L87 Difference]: Start difference. First operand 177760 states and 195741 transitions. Second operand 4 states. [2018-10-24 14:10:29,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:29,734 INFO L93 Difference]: Finished difference Result 366551 states and 403042 transitions. [2018-10-24 14:10:29,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:10:29,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 368 [2018-10-24 14:10:29,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:29,922 INFO L225 Difference]: With dead ends: 366551 [2018-10-24 14:10:29,923 INFO L226 Difference]: Without dead ends: 169035 [2018-10-24 14:10:30,016 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:10:30,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169035 states. [2018-10-24 14:10:32,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169035 to 159578. [2018-10-24 14:10:32,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159578 states. [2018-10-24 14:10:32,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159578 states to 159578 states and 174407 transitions. [2018-10-24 14:10:32,647 INFO L78 Accepts]: Start accepts. Automaton has 159578 states and 174407 transitions. Word has length 368 [2018-10-24 14:10:32,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:32,647 INFO L481 AbstractCegarLoop]: Abstraction has 159578 states and 174407 transitions. [2018-10-24 14:10:32,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:10:32,647 INFO L276 IsEmpty]: Start isEmpty. Operand 159578 states and 174407 transitions. [2018-10-24 14:10:32,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2018-10-24 14:10:32,655 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:32,655 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 14:10:32,656 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:32,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:32,656 INFO L82 PathProgramCache]: Analyzing trace with hash -898488172, now seen corresponding path program 1 times [2018-10-24 14:10:32,656 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:32,657 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:32,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:32,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:32,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 325 proven. 5 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-24 14:10:33,274 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:10:33,274 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 [2018-10-24 14:10:33,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:33,408 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:10:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 507 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-10-24 14:10:33,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:10:33,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2018-10-24 14:10:33,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:10:33,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:10:33,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:10:33,685 INFO L87 Difference]: Start difference. First operand 159578 states and 174407 transitions. Second operand 8 states. [2018-10-24 14:10:51,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:51,803 INFO L93 Difference]: Finished difference Result 330310 states and 361039 transitions. [2018-10-24 14:10:51,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 14:10:51,805 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 429 [2018-10-24 14:10:51,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:52,011 INFO L225 Difference]: With dead ends: 330310 [2018-10-24 14:10:52,011 INFO L226 Difference]: Without dead ends: 170732 [2018-10-24 14:10:52,079 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 434 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-10-24 14:10:52,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170732 states. [2018-10-24 14:10:58,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170732 to 167427. [2018-10-24 14:10:58,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167427 states. [2018-10-24 14:10:58,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167427 states to 167427 states and 178109 transitions. [2018-10-24 14:10:58,292 INFO L78 Accepts]: Start accepts. Automaton has 167427 states and 178109 transitions. Word has length 429 [2018-10-24 14:10:58,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:58,292 INFO L481 AbstractCegarLoop]: Abstraction has 167427 states and 178109 transitions. [2018-10-24 14:10:58,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:10:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand 167427 states and 178109 transitions. [2018-10-24 14:10:58,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2018-10-24 14:10:58,299 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:58,299 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:10:58,299 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:58,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:58,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1233261864, now seen corresponding path program 1 times [2018-10-24 14:10:58,300 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:58,300 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:58,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:58,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:58,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:59,576 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-24 14:10:59,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:10:59,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:10:59,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:10:59,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:10:59,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:10:59,579 INFO L87 Difference]: Start difference. First operand 167427 states and 178109 transitions. Second operand 4 states. [2018-10-24 14:11:10,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:11:10,100 INFO L93 Difference]: Finished difference Result 334870 states and 356223 transitions. [2018-10-24 14:11:10,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:11:10,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 490 [2018-10-24 14:11:10,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:11:10,279 INFO L225 Difference]: With dead ends: 334870 [2018-10-24 14:11:10,279 INFO L226 Difference]: Without dead ends: 168232 [2018-10-24 14:11:10,352 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:11:10,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168232 states. [2018-10-24 14:11:12,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168232 to 159542. [2018-10-24 14:11:12,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159542 states. [2018-10-24 14:11:12,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159542 states to 159542 states and 167195 transitions. [2018-10-24 14:11:12,322 INFO L78 Accepts]: Start accepts. Automaton has 159542 states and 167195 transitions. Word has length 490 [2018-10-24 14:11:12,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:11:12,323 INFO L481 AbstractCegarLoop]: Abstraction has 159542 states and 167195 transitions. [2018-10-24 14:11:12,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:11:12,324 INFO L276 IsEmpty]: Start isEmpty. Operand 159542 states and 167195 transitions. [2018-10-24 14:11:12,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2018-10-24 14:11:12,332 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:11:12,332 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 14:11:12,333 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:11:12,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:11:12,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1558790825, now seen corresponding path program 1 times [2018-10-24 14:11:12,333 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:11:12,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:11:12,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:12,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:11:12,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:11:12,824 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2018-10-24 14:11:12,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:11:12,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:11:12,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:11:12,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:11:12,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:11:12,826 INFO L87 Difference]: Start difference. First operand 159542 states and 167195 transitions. Second operand 3 states. [2018-10-24 14:11:17,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:11:17,671 INFO L93 Difference]: Finished difference Result 316705 states and 331838 transitions. [2018-10-24 14:11:17,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:11:17,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 500 [2018-10-24 14:11:17,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:11:17,899 INFO L225 Difference]: With dead ends: 316705 [2018-10-24 14:11:17,899 INFO L226 Difference]: Without dead ends: 157950 [2018-10-24 14:11:17,983 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 [2018-10-24 14:11:18,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157950 states. [2018-10-24 14:11:19,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157950 to 157950. [2018-10-24 14:11:19,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157950 states. [2018-10-24 14:11:19,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157950 states to 157950 states and 165416 transitions. [2018-10-24 14:11:19,710 INFO L78 Accepts]: Start accepts. Automaton has 157950 states and 165416 transitions. Word has length 500 [2018-10-24 14:11:19,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:11:19,711 INFO L481 AbstractCegarLoop]: Abstraction has 157950 states and 165416 transitions. [2018-10-24 14:11:19,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:11:19,711 INFO L276 IsEmpty]: Start isEmpty. Operand 157950 states and 165416 transitions. [2018-10-24 14:11:19,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2018-10-24 14:11:19,723 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:11:19,724 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:11:19,724 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:11:19,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:11:19,724 INFO L82 PathProgramCache]: Analyzing trace with hash 486851899, now seen corresponding path program 1 times [2018-10-24 14:11:19,724 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:11:19,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:11:19,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:19,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:11:19,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:11:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 784 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2018-10-24 14:11:20,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:11:20,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:11:20,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:11:20,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:11:20,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:11:20,642 INFO L87 Difference]: Start difference. First operand 157950 states and 165416 transitions. Second operand 4 states. [2018-10-24 14:11:30,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:11:30,620 INFO L93 Difference]: Finished difference Result 315132 states and 330023 transitions. [2018-10-24 14:11:30,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:11:30,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 549 [2018-10-24 14:11:30,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:11:30,799 INFO L225 Difference]: With dead ends: 315132 [2018-10-24 14:11:30,799 INFO L226 Difference]: Without dead ends: 156391 [2018-10-24 14:11:30,863 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:11:30,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156391 states. [2018-10-24 14:11:32,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156391 to 152415. [2018-10-24 14:11:32,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152415 states. [2018-10-24 14:11:33,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152415 states to 152415 states and 157666 transitions. [2018-10-24 14:11:33,107 INFO L78 Accepts]: Start accepts. Automaton has 152415 states and 157666 transitions. Word has length 549 [2018-10-24 14:11:33,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:11:33,107 INFO L481 AbstractCegarLoop]: Abstraction has 152415 states and 157666 transitions. [2018-10-24 14:11:33,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:11:33,107 INFO L276 IsEmpty]: Start isEmpty. Operand 152415 states and 157666 transitions. [2018-10-24 14:11:33,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2018-10-24 14:11:33,146 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:11:33,147 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:11:33,147 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:11:33,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:11:33,148 INFO L82 PathProgramCache]: Analyzing trace with hash 987409717, now seen corresponding path program 1 times [2018-10-24 14:11:33,148 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:11:33,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:11:33,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:33,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:11:33,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:11:33,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2018-10-24 14:11:33,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:11:33,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:11:33,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:11:33,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:11:33,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:11:33,931 INFO L87 Difference]: Start difference. First operand 152415 states and 157666 transitions. Second operand 4 states. [2018-10-24 14:11:41,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:11:41,601 INFO L93 Difference]: Finished difference Result 303246 states and 313710 transitions. [2018-10-24 14:11:41,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:11:41,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 756 [2018-10-24 14:11:41,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:11:41,787 INFO L225 Difference]: With dead ends: 303246 [2018-10-24 14:11:41,787 INFO L226 Difference]: Without dead ends: 151620 [2018-10-24 14:11:41,865 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 5 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:11:41,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151620 states. [2018-10-24 14:11:43,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151620 to 150831. [2018-10-24 14:11:43,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150831 states. [2018-10-24 14:11:43,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150831 states to 150831 states and 155703 transitions. [2018-10-24 14:11:43,999 INFO L78 Accepts]: Start accepts. Automaton has 150831 states and 155703 transitions. Word has length 756 [2018-10-24 14:11:44,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:11:44,000 INFO L481 AbstractCegarLoop]: Abstraction has 150831 states and 155703 transitions. [2018-10-24 14:11:44,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:11:44,000 INFO L276 IsEmpty]: Start isEmpty. Operand 150831 states and 155703 transitions. [2018-10-24 14:11:44,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2018-10-24 14:11:44,032 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:11:44,032 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:11:44,033 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:11:44,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:11:44,033 INFO L82 PathProgramCache]: Analyzing trace with hash 2021081606, now seen corresponding path program 1 times [2018-10-24 14:11:44,033 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:11:44,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:11:44,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:44,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:11:44,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:11:45,536 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-24 14:11:45,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:11:45,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:11:45,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:11:45,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:11:45,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:11:45,538 INFO L87 Difference]: Start difference. First operand 150831 states and 155703 transitions. Second operand 5 states. Received shutdown request... [2018-10-24 14:11:46,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:11:46,462 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:11:46,469 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:11:46,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:11:46 BoogieIcfgContainer [2018-10-24 14:11:46,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:11:46,471 INFO L168 Benchmark]: Toolchain (without parser) took 224552.08 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 888.2 MB in the end (delta: 538.7 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-10-24 14:11:46,472 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:11:46,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2299.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:11:46,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 887.77 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 843.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:11:46,474 INFO L168 Benchmark]: Boogie Preprocessor took 592.82 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2018-10-24 14:11:47,063 INFO L168 Benchmark]: RCFGBuilder took 17488.60 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 224.4 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 47.5 MB). Peak memory consumption was 586.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:11:47,064 INFO L168 Benchmark]: TraceAbstraction took 203278.27 ms. Allocated memory was 2.6 GB in the beginning and 4.4 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 888.2 MB in the end (delta: 1.2 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-10-24 14:11:47,075 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2299.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 887.77 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 843.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 592.82 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17488.60 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 224.4 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 47.5 MB). Peak memory consumption was 586.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 203278.27 ms. Allocated memory was 2.6 GB in the beginning and 4.4 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 888.2 MB in the end (delta: 1.2 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 39]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 39). Cancelled while BasicCegarLoop was constructing difference of abstraction (150831states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (843 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 203.1s OverallTime, 15 OverallIterations, 6 TraceHistogramMax, 168.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10378 SDtfs, 34589 SDslu, 3367 SDs, 0 SdLazy, 64808 SolverSat, 16166 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 133.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 944 GetRequests, 892 SyntacticMatches, 14 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=177760occurred in iteration=8, 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: 23.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 106179 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 6295 NumberOfCodeBlocks, 6295 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 6277 ConstructedInterpolants, 0 QuantifiedInterpolants, 7350879 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1200 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 6796/6809 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown