java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label26_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:29:45,862 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:29:45,864 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:29:45,876 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:29:45,876 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:29:45,878 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:29:45,879 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:29:45,881 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:29:45,883 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:29:45,884 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:29:45,885 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:29:45,885 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:29:45,886 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:29:45,887 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:29:45,888 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:29:45,889 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:29:45,889 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:29:45,891 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:29:45,893 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:29:45,895 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:29:45,896 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:29:45,897 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:29:45,900 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-06 19:29:45,910 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 19:29:45,925 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:29:45,925 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:29:45,926 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:29:45,926 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:29:45,927 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:29:45,927 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:29:45,928 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:29:45,928 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:29:45,928 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:29:45,928 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:29:45,928 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:29:45,929 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:29:45,929 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:29:45,929 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:29:45,929 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:29:45,930 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:29:45,930 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:29:45,930 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:29:45,930 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:29:45,930 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:29:45,931 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:29:45,931 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:29:45,931 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:29:45,931 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:29:45,932 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:29:45,932 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:29:45,932 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:29:45,932 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:29:45,976 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:29:45,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:29:45,993 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:29:45,995 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:29:45,995 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:29:45,996 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label26_false-unreach-call.c [2018-11-06 19:29:46,066 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2bab5868/977c75cf11c646e0885dbc06f36d3f6f/FLAG56cfabb22 [2018-11-06 19:29:46,780 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:29:46,781 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label26_false-unreach-call.c [2018-11-06 19:29:46,804 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2bab5868/977c75cf11c646e0885dbc06f36d3f6f/FLAG56cfabb22 [2018-11-06 19:29:46,821 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2bab5868/977c75cf11c646e0885dbc06f36d3f6f [2018-11-06 19:29:46,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:29:46,834 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:29:46,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:29:46,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:29:46,842 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:29:46,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:29:46" (1/1) ... [2018-11-06 19:29:46,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d73b804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:46, skipping insertion in model container [2018-11-06 19:29:46,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:29:46" (1/1) ... [2018-11-06 19:29:46,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:29:46,974 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:29:48,008 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:29:48,015 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:29:48,421 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:29:48,446 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:29:48,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48 WrapperNode [2018-11-06 19:29:48,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:29:48,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:29:48,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:29:48,449 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:29:48,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48" (1/1) ... [2018-11-06 19:29:48,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48" (1/1) ... [2018-11-06 19:29:48,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:29:48,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:29:48,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:29:48,957 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:29:48,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48" (1/1) ... [2018-11-06 19:29:48,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48" (1/1) ... [2018-11-06 19:29:49,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48" (1/1) ... [2018-11-06 19:29:49,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48" (1/1) ... [2018-11-06 19:29:49,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48" (1/1) ... [2018-11-06 19:29:49,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48" (1/1) ... [2018-11-06 19:29:49,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48" (1/1) ... [2018-11-06 19:29:49,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:29:49,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:29:49,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:29:49,284 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:29:49,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:29:49,351 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:29:49,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:29:49,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:29:58,360 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:29:58,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:29:58 BoogieIcfgContainer [2018-11-06 19:29:58,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:29:58,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:29:58,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:29:58,366 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:29:58,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:29:46" (1/3) ... [2018-11-06 19:29:58,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb0463b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:29:58, skipping insertion in model container [2018-11-06 19:29:58,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:48" (2/3) ... [2018-11-06 19:29:58,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb0463b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:29:58, skipping insertion in model container [2018-11-06 19:29:58,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:29:58" (3/3) ... [2018-11-06 19:29:58,370 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label26_false-unreach-call.c [2018-11-06 19:29:58,381 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:29:58,390 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:29:58,409 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:29:58,451 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:29:58,452 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:29:58,452 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:29:58,452 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:29:58,452 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:29:58,452 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:29:58,453 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:29:58,453 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:29:58,453 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:29:58,485 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-11-06 19:29:58,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-06 19:29:58,493 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:29:58,494 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:29:58,497 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:29:58,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:29:58,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1827210562, now seen corresponding path program 1 times [2018-11-06 19:29:58,505 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:29:58,506 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:29:58,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:29:58,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:29:58,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:29:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:29:58,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:29:58,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:29:58,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:29:58,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:29:58,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:29:58,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:29:58,928 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-11-06 19:30:06,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:30:06,603 INFO L93 Difference]: Finished difference Result 2122 states and 3950 transitions. [2018-11-06 19:30:06,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:30:06,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-06 19:30:06,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:30:06,645 INFO L225 Difference]: With dead ends: 2122 [2018-11-06 19:30:06,646 INFO L226 Difference]: Without dead ends: 1524 [2018-11-06 19:30:06,653 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:30:06,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2018-11-06 19:30:06,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1497. [2018-11-06 19:30:06,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2018-11-06 19:30:06,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2656 transitions. [2018-11-06 19:30:06,797 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2656 transitions. Word has length 29 [2018-11-06 19:30:06,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:30:06,797 INFO L480 AbstractCegarLoop]: Abstraction has 1497 states and 2656 transitions. [2018-11-06 19:30:06,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:30:06,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2656 transitions. [2018-11-06 19:30:06,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-06 19:30:06,802 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:30:06,803 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:30:06,803 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:30:06,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:30:06,804 INFO L82 PathProgramCache]: Analyzing trace with hash 896281312, now seen corresponding path program 1 times [2018-11-06 19:30:06,804 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:30:06,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:30:06,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:06,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:30:06,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:30:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:30:07,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:30:07,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:30:07,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:30:07,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:30:07,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:30:07,079 INFO L87 Difference]: Start difference. First operand 1497 states and 2656 transitions. Second operand 4 states. [2018-11-06 19:30:16,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:30:16,091 INFO L93 Difference]: Finished difference Result 5604 states and 10151 transitions. [2018-11-06 19:30:16,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:30:16,092 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2018-11-06 19:30:16,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:30:16,116 INFO L225 Difference]: With dead ends: 5604 [2018-11-06 19:30:16,116 INFO L226 Difference]: Without dead ends: 4109 [2018-11-06 19:30:16,123 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:30:16,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2018-11-06 19:30:16,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 4098. [2018-11-06 19:30:16,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2018-11-06 19:30:16,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 6039 transitions. [2018-11-06 19:30:16,205 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 6039 transitions. Word has length 104 [2018-11-06 19:30:16,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:30:16,205 INFO L480 AbstractCegarLoop]: Abstraction has 4098 states and 6039 transitions. [2018-11-06 19:30:16,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:30:16,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 6039 transitions. [2018-11-06 19:30:16,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-11-06 19:30:16,212 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:30:16,213 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:30:16,213 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:30:16,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:30:16,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1202250733, now seen corresponding path program 1 times [2018-11-06 19:30:16,214 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:30:16,214 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:30:16,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:16,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:30:16,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:30:16,601 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:30:16,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:30:16,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:30:16,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:30:16,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:30:16,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:30:16,603 INFO L87 Difference]: Start difference. First operand 4098 states and 6039 transitions. Second operand 4 states. [2018-11-06 19:30:22,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:30:22,517 INFO L93 Difference]: Finished difference Result 15443 states and 23002 transitions. [2018-11-06 19:30:22,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:30:22,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2018-11-06 19:30:22,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:30:22,575 INFO L225 Difference]: With dead ends: 15443 [2018-11-06 19:30:22,576 INFO L226 Difference]: Without dead ends: 11347 [2018-11-06 19:30:22,582 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:30:22,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2018-11-06 19:30:22,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 11347. [2018-11-06 19:30:22,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11347 states. [2018-11-06 19:30:22,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11347 states to 11347 states and 14546 transitions. [2018-11-06 19:30:22,784 INFO L78 Accepts]: Start accepts. Automaton has 11347 states and 14546 transitions. Word has length 167 [2018-11-06 19:30:22,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:30:22,785 INFO L480 AbstractCegarLoop]: Abstraction has 11347 states and 14546 transitions. [2018-11-06 19:30:22,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:30:22,786 INFO L276 IsEmpty]: Start isEmpty. Operand 11347 states and 14546 transitions. [2018-11-06 19:30:22,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-06 19:30:22,789 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:30:22,790 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 19:30:22,790 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:30:22,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:30:22,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1007255592, now seen corresponding path program 1 times [2018-11-06 19:30:22,791 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:30:22,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:30:22,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:22,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:30:22,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:30:23,117 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-11-06 19:30:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:30:23,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:30:23,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:30:23,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:30:23,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:30:23,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:30:23,146 INFO L87 Difference]: Start difference. First operand 11347 states and 14546 transitions. Second operand 4 states. [2018-11-06 19:30:27,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:30:27,261 INFO L93 Difference]: Finished difference Result 23544 states and 30340 transitions. [2018-11-06 19:30:27,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:30:27,262 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2018-11-06 19:30:27,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:30:27,309 INFO L225 Difference]: With dead ends: 23544 [2018-11-06 19:30:27,309 INFO L226 Difference]: Without dead ends: 12199 [2018-11-06 19:30:27,324 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:30:27,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12199 states. [2018-11-06 19:30:27,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12199 to 12199. [2018-11-06 19:30:27,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12199 states. [2018-11-06 19:30:27,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12199 states to 12199 states and 14547 transitions. [2018-11-06 19:30:27,739 INFO L78 Accepts]: Start accepts. Automaton has 12199 states and 14547 transitions. Word has length 192 [2018-11-06 19:30:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:30:27,741 INFO L480 AbstractCegarLoop]: Abstraction has 12199 states and 14547 transitions. [2018-11-06 19:30:27,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:30:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 12199 states and 14547 transitions. [2018-11-06 19:30:27,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-11-06 19:30:27,747 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:30:27,747 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 19:30:27,748 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:30:27,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:30:27,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1163909284, now seen corresponding path program 1 times [2018-11-06 19:30:27,748 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:30:27,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:30:27,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:27,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:30:27,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:30:28,348 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-11-06 19:30:28,441 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 53 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:30:28,442 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:30:28,442 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:30:28,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:30:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:30:28,570 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:30:28,949 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 53 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:30:28,978 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:30:28,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-11-06 19:30:28,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 19:30:28,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 19:30:28,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:30:28,980 INFO L87 Difference]: Start difference. First operand 12199 states and 14547 transitions. Second operand 7 states. [2018-11-06 19:30:42,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:30:42,906 INFO L93 Difference]: Finished difference Result 37706 states and 45491 transitions. [2018-11-06 19:30:42,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-06 19:30:42,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 251 [2018-11-06 19:30:42,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:30:42,954 INFO L225 Difference]: With dead ends: 37706 [2018-11-06 19:30:42,955 INFO L226 Difference]: Without dead ends: 21179 [2018-11-06 19:30:42,973 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-06 19:30:42,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21179 states. [2018-11-06 19:30:43,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21179 to 18151. [2018-11-06 19:30:43,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18151 states. [2018-11-06 19:30:43,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18151 states to 18151 states and 20399 transitions. [2018-11-06 19:30:43,290 INFO L78 Accepts]: Start accepts. Automaton has 18151 states and 20399 transitions. Word has length 251 [2018-11-06 19:30:43,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:30:43,291 INFO L480 AbstractCegarLoop]: Abstraction has 18151 states and 20399 transitions. [2018-11-06 19:30:43,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 19:30:43,291 INFO L276 IsEmpty]: Start isEmpty. Operand 18151 states and 20399 transitions. [2018-11-06 19:30:43,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-11-06 19:30:43,300 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:30:43,301 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:30:43,301 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:30:43,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:30:43,302 INFO L82 PathProgramCache]: Analyzing trace with hash -743069123, now seen corresponding path program 1 times [2018-11-06 19:30:43,302 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:30:43,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:30:43,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:43,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:30:43,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:30:44,125 WARN L179 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2018-11-06 19:30:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 242 proven. 83 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-06 19:30:44,359 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:30:44,359 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:30:44,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:30:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:30:44,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:30:45,031 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 242 proven. 83 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-06 19:30:45,053 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:30:45,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-11-06 19:30:45,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-06 19:30:45,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-06 19:30:45,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-06 19:30:45,054 INFO L87 Difference]: Start difference. First operand 18151 states and 20399 transitions. Second operand 9 states. [2018-11-06 19:30:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:30:53,240 INFO L93 Difference]: Finished difference Result 38007 states and 42625 transitions. [2018-11-06 19:30:53,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:30:53,244 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 344 [2018-11-06 19:30:53,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:30:53,284 INFO L225 Difference]: With dead ends: 38007 [2018-11-06 19:30:53,284 INFO L226 Difference]: Without dead ends: 20287 [2018-11-06 19:30:53,302 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-11-06 19:30:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20287 states. [2018-11-06 19:30:53,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20287 to 19855. [2018-11-06 19:30:53,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19855 states. [2018-11-06 19:30:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19855 states to 19855 states and 22191 transitions. [2018-11-06 19:30:53,544 INFO L78 Accepts]: Start accepts. Automaton has 19855 states and 22191 transitions. Word has length 344 [2018-11-06 19:30:53,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:30:53,544 INFO L480 AbstractCegarLoop]: Abstraction has 19855 states and 22191 transitions. [2018-11-06 19:30:53,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-06 19:30:53,545 INFO L276 IsEmpty]: Start isEmpty. Operand 19855 states and 22191 transitions. [2018-11-06 19:30:53,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2018-11-06 19:30:53,557 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:30:53,558 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:30:53,558 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:30:53,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:30:53,558 INFO L82 PathProgramCache]: Analyzing trace with hash -374062056, now seen corresponding path program 1 times [2018-11-06 19:30:53,559 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:30:53,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:30:53,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:53,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:30:53,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:30:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:30:54,246 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 80 proven. 291 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:30:54,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:30:54,246 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:30:54,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:30:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:30:54,387 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:30:54,700 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 16 [2018-11-06 19:30:55,553 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 23 [2018-11-06 19:30:56,480 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 80 proven. 291 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:30:56,501 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:30:56,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2018-11-06 19:30:56,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 19:30:56,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 19:30:56,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:30:56,503 INFO L87 Difference]: Start difference. First operand 19855 states and 22191 transitions. Second operand 8 states. [2018-11-06 19:31:07,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:31:07,749 INFO L93 Difference]: Finished difference Result 60329 states and 67650 transitions. [2018-11-06 19:31:07,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-06 19:31:07,750 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 396 [2018-11-06 19:31:07,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:31:07,841 INFO L225 Difference]: With dead ends: 60329 [2018-11-06 19:31:07,841 INFO L226 Difference]: Without dead ends: 40053 [2018-11-06 19:31:07,860 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 393 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:31:07,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40053 states. [2018-11-06 19:31:08,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40053 to 35229. [2018-11-06 19:31:08,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35229 states. [2018-11-06 19:31:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35229 states to 35229 states and 39448 transitions. [2018-11-06 19:31:08,367 INFO L78 Accepts]: Start accepts. Automaton has 35229 states and 39448 transitions. Word has length 396 [2018-11-06 19:31:08,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:31:08,368 INFO L480 AbstractCegarLoop]: Abstraction has 35229 states and 39448 transitions. [2018-11-06 19:31:08,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 19:31:08,369 INFO L276 IsEmpty]: Start isEmpty. Operand 35229 states and 39448 transitions. [2018-11-06 19:31:08,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-11-06 19:31:08,383 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:31:08,383 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:31:08,384 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:31:08,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:31:08,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1822851898, now seen corresponding path program 1 times [2018-11-06 19:31:08,384 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:31:08,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:31:08,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:31:08,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:31:08,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:31:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:31:09,243 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 80 proven. 304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:31:09,243 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:31:09,243 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:31:09,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:31:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:31:09,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:31:09,589 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 17 [2018-11-06 19:31:09,749 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2018-11-06 19:31:09,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:31:09,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-11-06 19:31:09,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 19:31:09,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 19:31:09,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:31:09,777 INFO L87 Difference]: Start difference. First operand 35229 states and 39448 transitions. Second operand 7 states. [2018-11-06 19:31:25,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:31:25,098 INFO L93 Difference]: Finished difference Result 105454 states and 119352 transitions. [2018-11-06 19:31:25,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-06 19:31:25,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 400 [2018-11-06 19:31:25,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:31:25,220 INFO L225 Difference]: With dead ends: 105454 [2018-11-06 19:31:25,220 INFO L226 Difference]: Without dead ends: 61623 [2018-11-06 19:31:25,254 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-06 19:31:25,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61623 states. [2018-11-06 19:31:25,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61623 to 42381. [2018-11-06 19:31:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42381 states. [2018-11-06 19:31:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42381 states to 42381 states and 46334 transitions. [2018-11-06 19:31:25,856 INFO L78 Accepts]: Start accepts. Automaton has 42381 states and 46334 transitions. Word has length 400 [2018-11-06 19:31:25,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:31:25,857 INFO L480 AbstractCegarLoop]: Abstraction has 42381 states and 46334 transitions. [2018-11-06 19:31:25,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 19:31:25,857 INFO L276 IsEmpty]: Start isEmpty. Operand 42381 states and 46334 transitions. [2018-11-06 19:31:25,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-11-06 19:31:25,871 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:31:25,871 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:31:25,872 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:31:25,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:31:25,872 INFO L82 PathProgramCache]: Analyzing trace with hash 828926873, now seen corresponding path program 1 times [2018-11-06 19:31:25,872 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:31:25,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:31:25,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:31:25,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:31:25,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:31:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:31:26,462 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-11-06 19:31:26,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:31:26,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:31:26,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:31:26,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:31:26,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:31:26,464 INFO L87 Difference]: Start difference. First operand 42381 states and 46334 transitions. Second operand 4 states. [2018-11-06 19:31:30,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:31:30,833 INFO L93 Difference]: Finished difference Result 89445 states and 98051 transitions. [2018-11-06 19:31:30,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:31:30,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 400 [2018-11-06 19:31:30,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:31:30,898 INFO L225 Difference]: With dead ends: 89445 [2018-11-06 19:31:30,898 INFO L226 Difference]: Without dead ends: 51760 [2018-11-06 19:31:30,925 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:31:30,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51760 states. [2018-11-06 19:31:31,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51760 to 41089. [2018-11-06 19:31:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41089 states. [2018-11-06 19:31:31,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41089 states to 41089 states and 44885 transitions. [2018-11-06 19:31:31,502 INFO L78 Accepts]: Start accepts. Automaton has 41089 states and 44885 transitions. Word has length 400 [2018-11-06 19:31:31,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:31:31,503 INFO L480 AbstractCegarLoop]: Abstraction has 41089 states and 44885 transitions. [2018-11-06 19:31:31,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:31:31,504 INFO L276 IsEmpty]: Start isEmpty. Operand 41089 states and 44885 transitions. [2018-11-06 19:31:31,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2018-11-06 19:31:31,515 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:31:31,516 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:31:31,516 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:31:31,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:31:31,517 INFO L82 PathProgramCache]: Analyzing trace with hash 958347253, now seen corresponding path program 1 times [2018-11-06 19:31:31,517 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:31:31,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:31:31,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:31:31,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:31:31,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:31:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:31:32,069 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-11-06 19:31:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 427 proven. 83 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2018-11-06 19:31:32,311 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:31:32,312 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:31:32,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:31:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:31:32,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:31:32,916 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 18 [2018-11-06 19:31:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 643 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-06 19:31:33,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:31:33,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-11-06 19:31:33,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 19:31:33,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 19:31:33,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:31:33,437 INFO L87 Difference]: Start difference. First operand 41089 states and 44885 transitions. Second operand 7 states. [2018-11-06 19:31:46,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:31:46,816 INFO L93 Difference]: Finished difference Result 118840 states and 129543 transitions. [2018-11-06 19:31:46,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-06 19:31:46,817 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 448 [2018-11-06 19:31:46,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:31:46,892 INFO L225 Difference]: With dead ends: 118840 [2018-11-06 19:31:46,892 INFO L226 Difference]: Without dead ends: 73468 [2018-11-06 19:31:46,926 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-06 19:31:46,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73468 states. [2018-11-06 19:31:47,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73468 to 62802. [2018-11-06 19:31:47,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62802 states. [2018-11-06 19:31:47,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62802 states to 62802 states and 66689 transitions. [2018-11-06 19:31:47,690 INFO L78 Accepts]: Start accepts. Automaton has 62802 states and 66689 transitions. Word has length 448 [2018-11-06 19:31:47,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:31:47,690 INFO L480 AbstractCegarLoop]: Abstraction has 62802 states and 66689 transitions. [2018-11-06 19:31:47,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 19:31:47,690 INFO L276 IsEmpty]: Start isEmpty. Operand 62802 states and 66689 transitions. [2018-11-06 19:31:47,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2018-11-06 19:31:47,711 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:31:47,711 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-11-06 19:31:47,712 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:31:47,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:31:47,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1172312242, now seen corresponding path program 1 times [2018-11-06 19:31:47,712 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:31:47,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:31:47,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:31:47,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:31:47,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:31:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:31:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1018 backedges. 752 proven. 239 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-06 19:31:48,648 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:31:48,648 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:31:48,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:31:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:31:48,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:31:51,122 WARN L179 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 122 DAG size of output: 20 [2018-11-06 19:31:51,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1018 backedges. 776 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2018-11-06 19:31:51,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:31:51,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2018-11-06 19:31:51,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-06 19:31:51,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-06 19:31:51,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-11-06 19:31:51,900 INFO L87 Difference]: Start difference. First operand 62802 states and 66689 transitions. Second operand 11 states. [2018-11-06 19:32:04,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:32:04,616 INFO L93 Difference]: Finished difference Result 153105 states and 162770 transitions. [2018-11-06 19:32:04,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-06 19:32:04,617 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 526 [2018-11-06 19:32:04,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:32:04,718 INFO L225 Difference]: With dead ends: 153105 [2018-11-06 19:32:04,719 INFO L226 Difference]: Without dead ends: 87741 [2018-11-06 19:32:04,763 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2018-11-06 19:32:04,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87741 states. [2018-11-06 19:32:06,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87741 to 76031. [2018-11-06 19:32:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76031 states. [2018-11-06 19:32:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76031 states to 76031 states and 80585 transitions. [2018-11-06 19:32:06,067 INFO L78 Accepts]: Start accepts. Automaton has 76031 states and 80585 transitions. Word has length 526 [2018-11-06 19:32:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:32:06,068 INFO L480 AbstractCegarLoop]: Abstraction has 76031 states and 80585 transitions. [2018-11-06 19:32:06,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-06 19:32:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 76031 states and 80585 transitions. [2018-11-06 19:32:06,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2018-11-06 19:32:06,091 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:32:06,092 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-11-06 19:32:06,092 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:32:06,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:32:06,092 INFO L82 PathProgramCache]: Analyzing trace with hash 407326961, now seen corresponding path program 1 times [2018-11-06 19:32:06,093 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:32:06,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:32:06,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:32:06,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:32:06,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:32:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:32:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1051 backedges. 643 proven. 248 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2018-11-06 19:32:06,709 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:32:06,709 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:32:06,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:32:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:32:06,871 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:32:09,030 WARN L179 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 122 DAG size of output: 24 [2018-11-06 19:32:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1051 backedges. 809 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2018-11-06 19:32:09,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:32:09,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-11-06 19:32:09,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 19:32:09,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 19:32:09,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:32:09,837 INFO L87 Difference]: Start difference. First operand 76031 states and 80585 transitions. Second operand 6 states. [2018-11-06 19:32:31,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:32:31,987 INFO L93 Difference]: Finished difference Result 175965 states and 186732 transitions. [2018-11-06 19:32:31,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 19:32:31,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 598 [2018-11-06 19:32:31,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:32:32,089 INFO L225 Difference]: With dead ends: 175965 [2018-11-06 19:32:32,090 INFO L226 Difference]: Without dead ends: 100788 [2018-11-06 19:32:32,130 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 599 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:32:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100788 states. [2018-11-06 19:32:32,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100788 to 84557. [2018-11-06 19:32:32,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84557 states. [2018-11-06 19:32:32,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84557 states to 84557 states and 88756 transitions. [2018-11-06 19:32:32,922 INFO L78 Accepts]: Start accepts. Automaton has 84557 states and 88756 transitions. Word has length 598 [2018-11-06 19:32:32,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:32:32,923 INFO L480 AbstractCegarLoop]: Abstraction has 84557 states and 88756 transitions. [2018-11-06 19:32:32,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 19:32:32,923 INFO L276 IsEmpty]: Start isEmpty. Operand 84557 states and 88756 transitions. [2018-11-06 19:32:32,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2018-11-06 19:32:32,940 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:32:32,941 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:32:32,941 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:32:32,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:32:32,942 INFO L82 PathProgramCache]: Analyzing trace with hash 2144993396, now seen corresponding path program 1 times [2018-11-06 19:32:32,942 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:32:32,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:32:32,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:32:32,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:32:32,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:32:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:32:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 826 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2018-11-06 19:32:33,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:32:33,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 19:32:33,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:32:33,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:32:33,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:32:33,539 INFO L87 Difference]: Start difference. First operand 84557 states and 88756 transitions. Second operand 5 states. [2018-11-06 19:32:39,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:32:39,814 INFO L93 Difference]: Finished difference Result 185758 states and 195462 transitions. [2018-11-06 19:32:39,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:32:39,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 626 [2018-11-06 19:32:39,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:32:39,933 INFO L225 Difference]: With dead ends: 185758 [2018-11-06 19:32:39,933 INFO L226 Difference]: Without dead ends: 108032 [2018-11-06 19:32:39,979 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:32:40,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108032 states. [2018-11-06 19:32:40,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108032 to 96085. [2018-11-06 19:32:40,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96085 states. [2018-11-06 19:32:40,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96085 states to 96085 states and 100585 transitions. [2018-11-06 19:32:40,877 INFO L78 Accepts]: Start accepts. Automaton has 96085 states and 100585 transitions. Word has length 626 [2018-11-06 19:32:40,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:32:40,877 INFO L480 AbstractCegarLoop]: Abstraction has 96085 states and 100585 transitions. [2018-11-06 19:32:40,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:32:40,878 INFO L276 IsEmpty]: Start isEmpty. Operand 96085 states and 100585 transitions. [2018-11-06 19:32:40,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2018-11-06 19:32:40,895 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:32:40,895 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:32:40,895 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:32:40,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:32:40,896 INFO L82 PathProgramCache]: Analyzing trace with hash 808051810, now seen corresponding path program 1 times [2018-11-06 19:32:40,896 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:32:40,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:32:40,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:32:40,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:32:40,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:32:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:32:41,734 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2018-11-06 19:32:41,978 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 9 [2018-11-06 19:32:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 652 proven. 83 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2018-11-06 19:32:42,884 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:32:42,884 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:32:42,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:32:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:32:43,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:32:43,358 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 433 DAG size of output: 21 [2018-11-06 19:32:44,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2018-11-06 19:32:44,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:32:44,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-11-06 19:32:44,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 19:32:44,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 19:32:44,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:32:44,194 INFO L87 Difference]: Start difference. First operand 96085 states and 100585 transitions. Second operand 7 states. [2018-11-06 19:32:54,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:32:54,427 INFO L93 Difference]: Finished difference Result 204127 states and 213887 transitions. [2018-11-06 19:32:54,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 19:32:54,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 654 [2018-11-06 19:32:54,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:32:54,537 INFO L225 Difference]: With dead ends: 204127 [2018-11-06 19:32:54,538 INFO L226 Difference]: Without dead ends: 114014 [2018-11-06 19:32:54,582 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:32:54,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114014 states. [2018-11-06 19:32:55,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114014 to 111014. [2018-11-06 19:32:55,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111014 states. [2018-11-06 19:32:55,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111014 states to 111014 states and 115846 transitions. [2018-11-06 19:32:55,571 INFO L78 Accepts]: Start accepts. Automaton has 111014 states and 115846 transitions. Word has length 654 [2018-11-06 19:32:55,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:32:55,571 INFO L480 AbstractCegarLoop]: Abstraction has 111014 states and 115846 transitions. [2018-11-06 19:32:55,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 19:32:55,571 INFO L276 IsEmpty]: Start isEmpty. Operand 111014 states and 115846 transitions. [2018-11-06 19:32:55,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2018-11-06 19:32:55,583 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:32:55,584 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 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] [2018-11-06 19:32:55,584 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:32:55,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:32:55,584 INFO L82 PathProgramCache]: Analyzing trace with hash 2077206296, now seen corresponding path program 1 times [2018-11-06 19:32:55,584 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:32:55,584 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:32:55,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:32:55,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:32:55,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:32:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:32:57,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1637 backedges. 1077 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2018-11-06 19:32:57,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:32:57,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:32:57,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:32:57,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:32:57,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:32:57,048 INFO L87 Difference]: Start difference. First operand 111014 states and 115846 transitions. Second operand 4 states. [2018-11-06 19:33:02,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:33:02,290 INFO L93 Difference]: Finished difference Result 218188 states and 227758 transitions. [2018-11-06 19:33:02,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:33:02,291 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 724 [2018-11-06 19:33:02,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:33:02,400 INFO L225 Difference]: With dead ends: 218188 [2018-11-06 19:33:02,400 INFO L226 Difference]: Without dead ends: 113148 [2018-11-06 19:33:02,454 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:33:02,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113148 states. [2018-11-06 19:33:03,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113148 to 110587. [2018-11-06 19:33:03,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110587 states. [2018-11-06 19:33:03,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110587 states to 110587 states and 115209 transitions. [2018-11-06 19:33:03,548 INFO L78 Accepts]: Start accepts. Automaton has 110587 states and 115209 transitions. Word has length 724 [2018-11-06 19:33:03,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:33:03,549 INFO L480 AbstractCegarLoop]: Abstraction has 110587 states and 115209 transitions. [2018-11-06 19:33:03,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:33:03,549 INFO L276 IsEmpty]: Start isEmpty. Operand 110587 states and 115209 transitions. [2018-11-06 19:33:03,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2018-11-06 19:33:03,562 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:33:03,562 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:33:03,563 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:33:03,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:33:03,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1720625392, now seen corresponding path program 1 times [2018-11-06 19:33:03,563 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:33:03,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:33:03,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:03,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:33:03,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:33:04,884 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 7 [2018-11-06 19:33:05,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 1104 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-11-06 19:33:05,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:33:05,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:33:05,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:33:05,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:33:05,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:33:05,398 INFO L87 Difference]: Start difference. First operand 110587 states and 115209 transitions. Second operand 4 states. [2018-11-06 19:33:09,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:33:09,911 INFO L93 Difference]: Finished difference Result 229283 states and 238846 transitions. [2018-11-06 19:33:09,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:33:09,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 729 [2018-11-06 19:33:09,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:33:10,028 INFO L225 Difference]: With dead ends: 229283 [2018-11-06 19:33:10,028 INFO L226 Difference]: Without dead ends: 125097 [2018-11-06 19:33:10,079 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:33:10,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125097 states. [2018-11-06 19:33:11,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125097 to 113573. [2018-11-06 19:33:11,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113573 states. [2018-11-06 19:33:11,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113573 states to 113573 states and 118161 transitions. [2018-11-06 19:33:11,683 INFO L78 Accepts]: Start accepts. Automaton has 113573 states and 118161 transitions. Word has length 729 [2018-11-06 19:33:11,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:33:11,684 INFO L480 AbstractCegarLoop]: Abstraction has 113573 states and 118161 transitions. [2018-11-06 19:33:11,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:33:11,684 INFO L276 IsEmpty]: Start isEmpty. Operand 113573 states and 118161 transitions. [2018-11-06 19:33:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2018-11-06 19:33:11,702 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:33:11,703 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:33:11,703 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:33:11,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:33:11,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1581690483, now seen corresponding path program 1 times [2018-11-06 19:33:11,704 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:33:11,704 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:33:11,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:11,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:33:11,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:33:13,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 754 proven. 346 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2018-11-06 19:33:13,333 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:33:13,333 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:33:13,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:33:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:33:14,113 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:33:15,333 WARN L179 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 18 [2018-11-06 19:33:16,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 933 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2018-11-06 19:33:16,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:33:16,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2018-11-06 19:33:16,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 19:33:16,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 19:33:16,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:33:16,051 INFO L87 Difference]: Start difference. First operand 113573 states and 118161 transitions. Second operand 8 states. [2018-11-06 19:33:29,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:33:29,774 INFO L93 Difference]: Finished difference Result 247246 states and 257070 transitions. [2018-11-06 19:33:29,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-06 19:33:29,774 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 752 [2018-11-06 19:33:29,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:33:29,944 INFO L225 Difference]: With dead ends: 247246 [2018-11-06 19:33:29,944 INFO L226 Difference]: Without dead ends: 134523 [2018-11-06 19:33:30,023 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 750 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:33:30,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134523 states. [2018-11-06 19:33:31,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134523 to 115277. [2018-11-06 19:33:31,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115277 states. [2018-11-06 19:33:31,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115277 states to 115277 states and 119744 transitions. [2018-11-06 19:33:31,854 INFO L78 Accepts]: Start accepts. Automaton has 115277 states and 119744 transitions. Word has length 752 [2018-11-06 19:33:31,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:33:31,855 INFO L480 AbstractCegarLoop]: Abstraction has 115277 states and 119744 transitions. [2018-11-06 19:33:31,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 19:33:31,855 INFO L276 IsEmpty]: Start isEmpty. Operand 115277 states and 119744 transitions. [2018-11-06 19:33:31,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2018-11-06 19:33:31,877 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:33:31,878 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 19:33:31,878 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:33:31,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:33:31,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1676168837, now seen corresponding path program 1 times [2018-11-06 19:33:31,879 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:33:31,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:33:31,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:31,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:33:31,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-11-06 19:33:32,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1605 backedges. 901 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2018-11-06 19:33:32,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:33:32,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 19:33:32,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:33:32,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:33:32,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:33:32,886 INFO L87 Difference]: Start difference. First operand 115277 states and 119744 transitions. Second operand 3 states. [2018-11-06 19:33:32,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-06 19:33:32,887 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 19:33:32,893 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 19:33:32,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:33:32 BoogieIcfgContainer [2018-11-06 19:33:32,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 19:33:32,895 INFO L168 Benchmark]: Toolchain (without parser) took 226062.55 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -204.3 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-06 19:33:32,896 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 19:33:32,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1612.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-06 19:33:32,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 508.04 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -905.0 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-06 19:33:32,899 INFO L168 Benchmark]: Boogie Preprocessor took 325.85 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. [2018-11-06 19:33:32,900 INFO L168 Benchmark]: RCFGBuilder took 9078.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 475.4 MB). Peak memory consumption was 475.4 MB. Max. memory is 7.1 GB. [2018-11-06 19:33:32,901 INFO L168 Benchmark]: TraceAbstraction took 214532.23 ms. Allocated memory was 2.3 GB in the beginning and 3.7 GB in the end (delta: 1.4 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 46.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-06 19:33:32,912 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1612.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 508.04 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -905.0 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 325.85 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9078.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 475.4 MB). Peak memory consumption was 475.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214532.23 ms. Allocated memory was 2.3 GB in the beginning and 3.7 GB in the end (delta: 1.4 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 46.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 92). Cancelled while BasicCegarLoop was constructing difference of abstraction (115277states) and FLOYD_HOARE automaton (currently 2 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 214.4s OverallTime, 18 OverallIterations, 7 TraceHistogramMax, 170.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5867 SDtfs, 32767 SDslu, 4767 SDs, 0 SdLazy, 95414 SolverSat, 9919 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 139.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4482 GetRequests, 4387 SyntacticMatches, 3 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115277occurred in iteration=17, 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: 12.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 125120 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 12482 NumberOfCodeBlocks, 12482 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 12455 ConstructedInterpolants, 934 QuantifiedInterpolants, 34975536 SizeOfPredicates, 2 NumberOfNonLiveVariables, 5622 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 27 InterpolantComputations, 15 PerfectInterpolantSequences, 16510/18727 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown