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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4eac566 [2018-09-23 19:35:47,006 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-23 19:35:47,008 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-23 19:35:47,020 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-09-23 19:35:47,054 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-23 19:35:47,069 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-23 19:35:47,069 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-23 19:35:47,070 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-23 19:35:47,070 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-23 19:35:47,071 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-23 19:35:47,071 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-23 19:35:47,071 INFO L133 SettingsManager]: * Use SBE=true [2018-09-23 19:35:47,071 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-23 19:35:47,072 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-23 19:35:47,072 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-23 19:35:47,072 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-23 19:35:47,072 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-23 19:35:47,073 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-23 19:35:47,073 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-23 19:35:47,073 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-23 19:35:47,073 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-23 19:35:47,073 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-23 19:35:47,073 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-23 19:35:47,074 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-23 19:35:47,074 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-23 19:35:47,074 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-23 19:35:47,074 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-23 19:35:47,074 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-23 19:35:47,075 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-23 19:35:47,075 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-23 19:35:47,075 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-23 19:35:47,075 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-23 19:35:47,075 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-23 19:35:47,076 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-23 19:35:47,076 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-23 19:35:47,137 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-23 19:35:47,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-23 19:35:47,160 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-23 19:35:47,162 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-23 19:35:47,163 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-23 19:35:47,163 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl [2018-09-23 19:35:47,164 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl' [2018-09-23 19:35:47,230 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-23 19:35:47,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-23 19:35:47,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-23 19:35:47,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-23 19:35:47,235 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-23 19:35:47,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:35:47" (1/1) ... [2018-09-23 19:35:47,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:35:47" (1/1) ... [2018-09-23 19:35:47,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-23 19:35:47,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-23 19:35:47,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-23 19:35:47,281 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-23 19:35:47,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:35:47" (1/1) ... [2018-09-23 19:35:47,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:35:47" (1/1) ... [2018-09-23 19:35:47,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:35:47" (1/1) ... [2018-09-23 19:35:47,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:35:47" (1/1) ... [2018-09-23 19:35:47,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:35:47" (1/1) ... [2018-09-23 19:35:47,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:35:47" (1/1) ... [2018-09-23 19:35:47,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:35:47" (1/1) ... [2018-09-23 19:35:47,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-23 19:35:47,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-23 19:35:47,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-23 19:35:47,306 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-23 19:35:47,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:35:47" (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 [2018-09-23 19:35:47,392 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-23 19:35:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-23 19:35:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-23 19:35:47,622 INFO L354 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-23 19:35:47,623 INFO L202 PluginConnector]: Adding new model nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 07:35:47 BoogieIcfgContainer [2018-09-23 19:35:47,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-23 19:35:47,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-23 19:35:47,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-23 19:35:47,628 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-23 19:35:47,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:35:47" (1/2) ... [2018-09-23 19:35:47,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22051eb6 and model type nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 07:35:47, skipping insertion in model container [2018-09-23 19:35:47,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 07:35:47" (2/2) ... [2018-09-23 19:35:47,634 INFO L112 eAbstractionObserver]: Analyzing ICFG nested.i_4.bplTransformedIcfg_BEv2_3.bpl [2018-09-23 19:35:47,644 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-23 19:35:47,652 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-23 19:35:47,705 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-23 19:35:47,707 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-23 19:35:47,707 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-23 19:35:47,707 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-23 19:35:47,707 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-23 19:35:47,707 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-23 19:35:47,708 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-23 19:35:47,708 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-23 19:35:47,708 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-23 19:35:47,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-09-23 19:35:47,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-23 19:35:47,731 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:47,732 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-23 19:35:47,733 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:47,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:47,740 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-09-23 19:35:47,743 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:47,743 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:47,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:47,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:35:47,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:47,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:35:47,931 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 19:35:47,932 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 19:35:47,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 19:35:47,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 19:35:47,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 19:35:47,955 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-09-23 19:35:48,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:48,017 INFO L93 Difference]: Finished difference Result 11 states and 17 transitions. [2018-09-23 19:35:48,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 19:35:48,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-23 19:35:48,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:48,031 INFO L225 Difference]: With dead ends: 11 [2018-09-23 19:35:48,031 INFO L226 Difference]: Without dead ends: 7 [2018-09-23 19:35:48,035 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 19:35:48,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-23 19:35:48,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-09-23 19:35:48,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-23 19:35:48,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-09-23 19:35:48,073 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 7 transitions. Word has length 3 [2018-09-23 19:35:48,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:48,073 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-09-23 19:35:48,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 19:35:48,074 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-09-23 19:35:48,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-23 19:35:48,074 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:48,074 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-09-23 19:35:48,075 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:48,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:48,075 INFO L82 PathProgramCache]: Analyzing trace with hash 28854189, now seen corresponding path program 1 times [2018-09-23 19:35:48,075 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:48,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:48,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:48,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:35:48,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:48,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:35:48,191 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 19:35:48,192 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-23 19:35:48,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-23 19:35:48,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-23 19:35:48,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-23 19:35:48,195 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. Second operand 4 states. [2018-09-23 19:35:48,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:48,325 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2018-09-23 19:35:48,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-23 19:35:48,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-09-23 19:35:48,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:48,327 INFO L225 Difference]: With dead ends: 11 [2018-09-23 19:35:48,327 INFO L226 Difference]: Without dead ends: 7 [2018-09-23 19:35:48,328 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-23 19:35:48,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-23 19:35:48,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-23 19:35:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-23 19:35:48,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-09-23 19:35:48,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2018-09-23 19:35:48,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:48,332 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-09-23 19:35:48,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-23 19:35:48,333 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-09-23 19:35:48,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-23 19:35:48,333 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:48,333 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-09-23 19:35:48,334 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:48,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:48,334 INFO L82 PathProgramCache]: Analyzing trace with hash 894431694, now seen corresponding path program 1 times [2018-09-23 19:35:48,334 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:48,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:48,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:48,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:35:48,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:35:48,448 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:48,448 INFO L227 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 [2018-09-23 19:35:48,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:35:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:48,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:35:48,848 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:48,848 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-09-23 19:35:48,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-23 19:35:48,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-23 19:35:48,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-09-23 19:35:48,850 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. Second operand 7 states. [2018-09-23 19:35:48,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:48,896 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2018-09-23 19:35:48,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-23 19:35:48,899 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-09-23 19:35:48,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:48,900 INFO L225 Difference]: With dead ends: 13 [2018-09-23 19:35:48,900 INFO L226 Difference]: Without dead ends: 8 [2018-09-23 19:35:48,901 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-09-23 19:35:48,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-23 19:35:48,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-09-23 19:35:48,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-09-23 19:35:48,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-09-23 19:35:48,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2018-09-23 19:35:48,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:48,905 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-09-23 19:35:48,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-23 19:35:48,905 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-09-23 19:35:48,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-23 19:35:48,906 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:48,906 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2018-09-23 19:35:48,906 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:48,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:48,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1957530573, now seen corresponding path program 2 times [2018-09-23 19:35:48,907 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:48,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:48,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:48,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:35:48,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:35:49,096 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:49,096 INFO L227 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 [2018-09-23 19:35:49,110 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-23 19:35:49,132 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-23 19:35:49,132 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:49,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:49,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-09-23 19:35:49,424 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:49,425 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7 [2018-09-23 19:35:49,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-23 19:35:49,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-23 19:35:49,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-23 19:35:49,427 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 8 states. [2018-09-23 19:35:49,699 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-23 19:35:49,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:49,923 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2018-09-23 19:35:49,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-23 19:35:49,923 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-09-23 19:35:49,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:49,925 INFO L225 Difference]: With dead ends: 24 [2018-09-23 19:35:49,925 INFO L226 Difference]: Without dead ends: 18 [2018-09-23 19:35:49,927 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2018-09-23 19:35:49,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-23 19:35:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2018-09-23 19:35:49,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-23 19:35:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-09-23 19:35:49,934 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2018-09-23 19:35:49,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:49,934 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-09-23 19:35:49,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-23 19:35:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-09-23 19:35:49,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-23 19:35:49,935 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:49,936 INFO L375 BasicCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1] [2018-09-23 19:35:49,936 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:49,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:49,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1143121891, now seen corresponding path program 3 times [2018-09-23 19:35:49,937 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:49,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:49,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:49,939 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:49,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:50,167 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-23 19:35:50,167 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:50,168 INFO L227 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 [2018-09-23 19:35:50,184 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-23 19:35:50,286 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-09-23 19:35:50,286 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:50,288 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:50,486 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-23 19:35:50,512 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:50,513 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-09-23 19:35:50,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-23 19:35:50,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-23 19:35:50,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-09-23 19:35:50,514 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 11 states. [2018-09-23 19:35:50,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:50,559 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2018-09-23 19:35:50,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-23 19:35:50,562 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2018-09-23 19:35:50,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:50,563 INFO L225 Difference]: With dead ends: 24 [2018-09-23 19:35:50,563 INFO L226 Difference]: Without dead ends: 16 [2018-09-23 19:35:50,564 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-09-23 19:35:50,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-23 19:35:50,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-09-23 19:35:50,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-23 19:35:50,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-09-23 19:35:50,576 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2018-09-23 19:35:50,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:50,577 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-09-23 19:35:50,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-23 19:35:50,577 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-09-23 19:35:50,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-23 19:35:50,578 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:50,578 INFO L375 BasicCegarLoop]: trace histogram [8, 2, 2, 1, 1, 1] [2018-09-23 19:35:50,578 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:50,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:50,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1762706263, now seen corresponding path program 4 times [2018-09-23 19:35:50,579 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:50,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:50,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:50,580 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:50,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:50,725 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-09-23 19:35:50,725 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:50,725 INFO L227 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 [2018-09-23 19:35:50,739 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-23 19:35:50,759 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-23 19:35:50,759 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:50,761 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:50,866 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-09-23 19:35:50,888 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:50,888 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-09-23 19:35:50,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-23 19:35:50,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-23 19:35:50,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2018-09-23 19:35:50,889 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 13 states. [2018-09-23 19:35:50,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:50,939 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2018-09-23 19:35:50,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-23 19:35:50,940 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2018-09-23 19:35:50,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:50,941 INFO L225 Difference]: With dead ends: 27 [2018-09-23 19:35:50,941 INFO L226 Difference]: Without dead ends: 18 [2018-09-23 19:35:50,941 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2018-09-23 19:35:50,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-23 19:35:50,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-09-23 19:35:50,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-23 19:35:50,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-09-23 19:35:50,947 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 15 [2018-09-23 19:35:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:50,947 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-09-23 19:35:50,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-23 19:35:50,947 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-09-23 19:35:50,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-23 19:35:50,948 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:50,948 INFO L375 BasicCegarLoop]: trace histogram [10, 2, 2, 1, 1, 1] [2018-09-23 19:35:50,949 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:50,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:50,950 INFO L82 PathProgramCache]: Analyzing trace with hash 650597027, now seen corresponding path program 5 times [2018-09-23 19:35:50,951 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:50,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:50,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:50,952 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:50,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:51,082 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 38 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-09-23 19:35:51,082 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:51,082 INFO L227 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 [2018-09-23 19:35:51,093 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-23 19:35:51,117 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2018-09-23 19:35:51,118 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:51,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 38 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-09-23 19:35:51,294 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:51,295 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-09-23 19:35:51,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-23 19:35:51,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-23 19:35:51,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2018-09-23 19:35:51,296 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 15 states. [2018-09-23 19:35:51,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:51,363 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-09-23 19:35:51,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-23 19:35:51,368 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 17 [2018-09-23 19:35:51,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:51,369 INFO L225 Difference]: With dead ends: 30 [2018-09-23 19:35:51,369 INFO L226 Difference]: Without dead ends: 20 [2018-09-23 19:35:51,369 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2018-09-23 19:35:51,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-09-23 19:35:51,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-09-23 19:35:51,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-23 19:35:51,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-09-23 19:35:51,376 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 17 [2018-09-23 19:35:51,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:51,377 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-09-23 19:35:51,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-23 19:35:51,377 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-09-23 19:35:51,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-23 19:35:51,378 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:51,378 INFO L375 BasicCegarLoop]: trace histogram [12, 2, 2, 1, 1, 1] [2018-09-23 19:35:51,378 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:51,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:51,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1318725353, now seen corresponding path program 6 times [2018-09-23 19:35:51,379 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:51,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:51,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:51,380 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:51,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 51 proven. 21 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-23 19:35:51,723 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:51,723 INFO L227 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 [2018-09-23 19:35:51,733 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-23 19:35:51,767 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2018-09-23 19:35:51,767 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:51,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-23 19:35:51,850 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:51,850 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 12 [2018-09-23 19:35:51,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-23 19:35:51,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-23 19:35:51,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-09-23 19:35:51,851 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 13 states. [2018-09-23 19:35:53,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:53,017 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2018-09-23 19:35:53,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-23 19:35:53,018 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2018-09-23 19:35:53,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:53,019 INFO L225 Difference]: With dead ends: 50 [2018-09-23 19:35:53,019 INFO L226 Difference]: Without dead ends: 39 [2018-09-23 19:35:53,022 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=597, Invalid=1295, Unknown=0, NotChecked=0, Total=1892 [2018-09-23 19:35:53,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-09-23 19:35:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2018-09-23 19:35:53,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-09-23 19:35:53,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-09-23 19:35:53,032 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 19 [2018-09-23 19:35:53,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:53,032 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-09-23 19:35:53,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-23 19:35:53,032 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-09-23 19:35:53,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-23 19:35:53,033 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:53,033 INFO L375 BasicCegarLoop]: trace histogram [21, 3, 3, 1, 1, 1] [2018-09-23 19:35:53,034 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:53,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:53,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1893667570, now seen corresponding path program 7 times [2018-09-23 19:35:53,034 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:53,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:53,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:53,035 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:53,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:53,178 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 131 proven. 28 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-23 19:35:53,178 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:53,179 INFO L227 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 [2018-09-23 19:35:53,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:35:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:53,215 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:53,417 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 131 proven. 28 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-23 19:35:53,438 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:53,438 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-09-23 19:35:53,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-23 19:35:53,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-23 19:35:53,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2018-09-23 19:35:53,440 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 19 states. [2018-09-23 19:35:53,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:53,505 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2018-09-23 19:35:53,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-23 19:35:53,506 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 30 [2018-09-23 19:35:53,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:53,507 INFO L225 Difference]: With dead ends: 55 [2018-09-23 19:35:53,507 INFO L226 Difference]: Without dead ends: 34 [2018-09-23 19:35:53,507 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2018-09-23 19:35:53,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-09-23 19:35:53,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-09-23 19:35:53,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-09-23 19:35:53,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-09-23 19:35:53,516 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 30 [2018-09-23 19:35:53,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:53,517 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-09-23 19:35:53,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-23 19:35:53,517 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-09-23 19:35:53,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-23 19:35:53,518 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:53,518 INFO L375 BasicCegarLoop]: trace histogram [24, 3, 3, 1, 1, 1] [2018-09-23 19:35:53,518 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:53,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:53,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1170740991, now seen corresponding path program 8 times [2018-09-23 19:35:53,519 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:53,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:53,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:53,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:35:53,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:53,911 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 165 proven. 36 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2018-09-23 19:35:53,911 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:53,912 INFO L227 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 [2018-09-23 19:35:53,922 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-23 19:35:53,952 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-23 19:35:53,953 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:53,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 165 proven. 36 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2018-09-23 19:35:54,156 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:54,156 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-09-23 19:35:54,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-23 19:35:54,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-23 19:35:54,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-09-23 19:35:54,158 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 21 states. [2018-09-23 19:35:54,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:54,390 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2018-09-23 19:35:54,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-23 19:35:54,391 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 33 [2018-09-23 19:35:54,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:54,392 INFO L225 Difference]: With dead ends: 60 [2018-09-23 19:35:54,392 INFO L226 Difference]: Without dead ends: 37 [2018-09-23 19:35:54,393 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-09-23 19:35:54,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-09-23 19:35:54,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-09-23 19:35:54,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-09-23 19:35:54,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-09-23 19:35:54,406 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 33 [2018-09-23 19:35:54,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:54,406 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-09-23 19:35:54,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-23 19:35:54,407 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-09-23 19:35:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-23 19:35:54,408 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:54,408 INFO L375 BasicCegarLoop]: trace histogram [27, 3, 3, 1, 1, 1] [2018-09-23 19:35:54,408 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:54,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:54,410 INFO L82 PathProgramCache]: Analyzing trace with hash 251197998, now seen corresponding path program 9 times [2018-09-23 19:35:54,410 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:54,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:54,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:54,412 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:54,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:54,804 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 203 proven. 45 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2018-09-23 19:35:54,805 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:54,805 INFO L227 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 [2018-09-23 19:35:54,814 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-23 19:35:54,906 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2018-09-23 19:35:54,906 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:54,908 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 203 proven. 45 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2018-09-23 19:35:55,095 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:55,095 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2018-09-23 19:35:55,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-09-23 19:35:55,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-09-23 19:35:55,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=308, Unknown=0, NotChecked=0, Total=506 [2018-09-23 19:35:55,096 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 23 states. [2018-09-23 19:35:55,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:55,284 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2018-09-23 19:35:55,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-23 19:35:55,287 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 36 [2018-09-23 19:35:55,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:55,288 INFO L225 Difference]: With dead ends: 65 [2018-09-23 19:35:55,288 INFO L226 Difference]: Without dead ends: 40 [2018-09-23 19:35:55,288 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=308, Unknown=0, NotChecked=0, Total=506 [2018-09-23 19:35:55,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-09-23 19:35:55,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-09-23 19:35:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-09-23 19:35:55,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-09-23 19:35:55,298 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 36 [2018-09-23 19:35:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:55,299 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-09-23 19:35:55,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-09-23 19:35:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-09-23 19:35:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-23 19:35:55,300 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:55,300 INFO L375 BasicCegarLoop]: trace histogram [30, 3, 3, 1, 1, 1] [2018-09-23 19:35:55,300 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:55,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:55,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1180066335, now seen corresponding path program 10 times [2018-09-23 19:35:55,301 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:55,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:55,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:55,302 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:55,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:55,475 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2018-09-23 19:35:55,475 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:55,476 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-23 19:35:55,484 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-23 19:35:55,535 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-23 19:35:55,535 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:55,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:55,678 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2018-09-23 19:35:55,700 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:55,700 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2018-09-23 19:35:55,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-23 19:35:55,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-23 19:35:55,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-09-23 19:35:55,701 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 10 states. [2018-09-23 19:35:55,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:55,760 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2018-09-23 19:35:55,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-23 19:35:55,763 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2018-09-23 19:35:55,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:55,763 INFO L225 Difference]: With dead ends: 65 [2018-09-23 19:35:55,763 INFO L226 Difference]: Without dead ends: 63 [2018-09-23 19:35:55,764 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-09-23 19:35:55,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-23 19:35:55,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2018-09-23 19:35:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-23 19:35:55,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-09-23 19:35:55,776 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 39 [2018-09-23 19:35:55,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:55,777 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-09-23 19:35:55,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-23 19:35:55,777 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-09-23 19:35:55,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-23 19:35:55,778 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:55,778 INFO L375 BasicCegarLoop]: trace histogram [40, 4, 4, 1, 1, 1] [2018-09-23 19:35:55,779 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:55,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:55,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1381898283, now seen corresponding path program 11 times [2018-09-23 19:35:55,779 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:55,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:55,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:55,780 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:55,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 736 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2018-09-23 19:35:55,928 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:55,928 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-23 19:35:55,936 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-23 19:35:56,003 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2018-09-23 19:35:56,003 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:56,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:56,099 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 736 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2018-09-23 19:35:56,120 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:56,120 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2018-09-23 19:35:56,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-23 19:35:56,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-23 19:35:56,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2018-09-23 19:35:56,122 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 12 states. [2018-09-23 19:35:56,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:56,290 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2018-09-23 19:35:56,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-23 19:35:56,290 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2018-09-23 19:35:56,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:56,292 INFO L225 Difference]: With dead ends: 77 [2018-09-23 19:35:56,292 INFO L226 Difference]: Without dead ends: 75 [2018-09-23 19:35:56,292 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2018-09-23 19:35:56,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-09-23 19:35:56,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 64. [2018-09-23 19:35:56,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-23 19:35:56,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2018-09-23 19:35:56,307 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 51 [2018-09-23 19:35:56,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:56,308 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2018-09-23 19:35:56,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-23 19:35:56,308 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2018-09-23 19:35:56,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-23 19:35:56,310 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:56,310 INFO L375 BasicCegarLoop]: trace histogram [50, 5, 5, 1, 1, 1] [2018-09-23 19:35:56,311 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:56,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:56,311 INFO L82 PathProgramCache]: Analyzing trace with hash -536120459, now seen corresponding path program 12 times [2018-09-23 19:35:56,311 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:56,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:56,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:56,312 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:56,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:56,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-09-23 19:35:56,811 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:56,812 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-23 19:35:56,821 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-23 19:35:56,883 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2018-09-23 19:35:56,883 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:56,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:57,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-09-23 19:35:57,023 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:57,023 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-09-23 19:35:57,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-23 19:35:57,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-23 19:35:57,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2018-09-23 19:35:57,024 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 14 states. [2018-09-23 19:35:57,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:57,102 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2018-09-23 19:35:57,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-23 19:35:57,104 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 63 [2018-09-23 19:35:57,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:57,104 INFO L225 Difference]: With dead ends: 89 [2018-09-23 19:35:57,105 INFO L226 Difference]: Without dead ends: 87 [2018-09-23 19:35:57,105 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2018-09-23 19:35:57,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-23 19:35:57,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 76. [2018-09-23 19:35:57,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-09-23 19:35:57,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2018-09-23 19:35:57,124 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 63 [2018-09-23 19:35:57,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:57,125 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2018-09-23 19:35:57,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-23 19:35:57,125 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2018-09-23 19:35:57,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-09-23 19:35:57,126 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:57,126 INFO L375 BasicCegarLoop]: trace histogram [60, 6, 6, 1, 1, 1] [2018-09-23 19:35:57,126 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:57,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:57,127 INFO L82 PathProgramCache]: Analyzing trace with hash -681037889, now seen corresponding path program 13 times [2018-09-23 19:35:57,127 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:57,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:57,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:57,128 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:57,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2166 backedges. 0 proven. 1836 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-23 19:35:57,304 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:57,304 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-23 19:35:57,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:35:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:57,374 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:57,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2166 backedges. 0 proven. 1836 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-23 19:35:57,537 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:57,537 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-09-23 19:35:57,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-23 19:35:57,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-23 19:35:57,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2018-09-23 19:35:57,538 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand 16 states. [2018-09-23 19:35:57,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:57,762 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2018-09-23 19:35:57,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-23 19:35:57,765 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 75 [2018-09-23 19:35:57,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:57,766 INFO L225 Difference]: With dead ends: 101 [2018-09-23 19:35:57,766 INFO L226 Difference]: Without dead ends: 99 [2018-09-23 19:35:57,767 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2018-09-23 19:35:57,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-09-23 19:35:57,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 88. [2018-09-23 19:35:57,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-09-23 19:35:57,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2018-09-23 19:35:57,801 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 75 [2018-09-23 19:35:57,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:57,801 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2018-09-23 19:35:57,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-23 19:35:57,802 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2018-09-23 19:35:57,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-09-23 19:35:57,803 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:57,803 INFO L375 BasicCegarLoop]: trace histogram [70, 7, 7, 1, 1, 1] [2018-09-23 19:35:57,809 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:57,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:57,809 INFO L82 PathProgramCache]: Analyzing trace with hash -815084279, now seen corresponding path program 14 times [2018-09-23 19:35:57,810 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:57,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:57,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:57,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:35:57,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:58,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2954 backedges. 0 proven. 2569 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2018-09-23 19:35:58,081 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:58,081 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-23 19:35:58,092 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-23 19:35:58,161 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-23 19:35:58,161 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:58,166 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2954 backedges. 0 proven. 2569 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2018-09-23 19:35:58,467 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:58,467 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2018-09-23 19:35:58,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-23 19:35:58,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-23 19:35:58,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2018-09-23 19:35:58,468 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand 18 states. [2018-09-23 19:35:58,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:58,759 INFO L93 Difference]: Finished difference Result 113 states and 122 transitions. [2018-09-23 19:35:58,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-23 19:35:58,760 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 87 [2018-09-23 19:35:58,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:58,761 INFO L225 Difference]: With dead ends: 113 [2018-09-23 19:35:58,761 INFO L226 Difference]: Without dead ends: 111 [2018-09-23 19:35:58,761 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2018-09-23 19:35:58,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-09-23 19:35:58,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 100. [2018-09-23 19:35:58,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-09-23 19:35:58,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 108 transitions. [2018-09-23 19:35:58,783 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 108 transitions. Word has length 87 [2018-09-23 19:35:58,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:58,783 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 108 transitions. [2018-09-23 19:35:58,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-23 19:35:58,784 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 108 transitions. [2018-09-23 19:35:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-09-23 19:35:58,787 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:58,788 INFO L375 BasicCegarLoop]: trace histogram [80, 8, 8, 1, 1, 1] [2018-09-23 19:35:58,788 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:58,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:58,788 INFO L82 PathProgramCache]: Analyzing trace with hash 558484307, now seen corresponding path program 15 times [2018-09-23 19:35:58,789 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:58,789 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:58,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:58,790 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:58,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:35:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3864 backedges. 0 proven. 3424 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2018-09-23 19:35:59,486 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:35:59,486 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-23 19:35:59,494 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-23 19:35:59,626 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 49 check-sat command(s) [2018-09-23 19:35:59,626 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:35:59,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:35:59,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3864 backedges. 0 proven. 3424 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2018-09-23 19:35:59,826 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:35:59,827 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2018-09-23 19:35:59,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-23 19:35:59,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-23 19:35:59,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2018-09-23 19:35:59,828 INFO L87 Difference]: Start difference. First operand 100 states and 108 transitions. Second operand 20 states. [2018-09-23 19:35:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:35:59,930 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2018-09-23 19:35:59,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-23 19:35:59,932 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 99 [2018-09-23 19:35:59,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:35:59,933 INFO L225 Difference]: With dead ends: 125 [2018-09-23 19:35:59,933 INFO L226 Difference]: Without dead ends: 123 [2018-09-23 19:35:59,934 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2018-09-23 19:35:59,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-09-23 19:35:59,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 112. [2018-09-23 19:35:59,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-09-23 19:35:59,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 121 transitions. [2018-09-23 19:35:59,962 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 121 transitions. Word has length 99 [2018-09-23 19:35:59,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:35:59,962 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 121 transitions. [2018-09-23 19:35:59,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-23 19:35:59,963 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 121 transitions. [2018-09-23 19:35:59,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-09-23 19:35:59,964 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:35:59,964 INFO L375 BasicCegarLoop]: trace histogram [90, 9, 9, 1, 1, 1] [2018-09-23 19:35:59,964 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:35:59,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:35:59,965 INFO L82 PathProgramCache]: Analyzing trace with hash -2005161315, now seen corresponding path program 16 times [2018-09-23 19:35:59,965 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:35:59,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:35:59,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:35:59,966 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:35:59,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:36:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:36:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 4896 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-09-23 19:36:00,834 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:36:00,834 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-23 19:36:00,845 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-23 19:36:00,926 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-23 19:36:00,927 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:36:00,930 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:36:01,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4896 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-09-23 19:36:01,149 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:36:01,149 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2018-09-23 19:36:01,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-23 19:36:01,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-23 19:36:01,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=276, Unknown=0, NotChecked=0, Total=462 [2018-09-23 19:36:01,150 INFO L87 Difference]: Start difference. First operand 112 states and 121 transitions. Second operand 22 states. [2018-09-23 19:36:01,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:36:01,294 INFO L93 Difference]: Finished difference Result 137 states and 148 transitions. [2018-09-23 19:36:01,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-23 19:36:01,295 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 111 [2018-09-23 19:36:01,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:36:01,296 INFO L225 Difference]: With dead ends: 137 [2018-09-23 19:36:01,296 INFO L226 Difference]: Without dead ends: 135 [2018-09-23 19:36:01,297 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=186, Invalid=276, Unknown=0, NotChecked=0, Total=462 [2018-09-23 19:36:01,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-09-23 19:36:01,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 124. [2018-09-23 19:36:01,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-09-23 19:36:01,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 134 transitions. [2018-09-23 19:36:01,325 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 134 transitions. Word has length 111 [2018-09-23 19:36:01,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:36:01,325 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 134 transitions. [2018-09-23 19:36:01,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-09-23 19:36:01,326 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2018-09-23 19:36:01,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-23 19:36:01,326 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:36:01,327 INFO L375 BasicCegarLoop]: trace histogram [100, 10, 10, 1, 1, 1] [2018-09-23 19:36:01,327 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:36:01,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:36:01,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1028199705, now seen corresponding path program 17 times [2018-09-23 19:36:01,327 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:36:01,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:36:01,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:36:01,328 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:36:01,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:36:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:36:07,547 INFO L134 CoverageAnalysis]: Checked inductivity of 6050 backedges. 6041 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-23 19:36:07,548 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 19:36:07,548 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2018-09-23 19:36:07,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-09-23 19:36:07,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-09-23 19:36:07,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-09-23 19:36:07,554 INFO L87 Difference]: Start difference. First operand 124 states and 134 transitions. Second operand 103 states. [2018-09-23 19:36:10,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:36:10,343 INFO L93 Difference]: Finished difference Result 5119 states and 5579 transitions. [2018-09-23 19:36:10,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-09-23 19:36:10,343 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 123 [2018-09-23 19:36:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:36:10,344 INFO L225 Difference]: With dead ends: 5119 [2018-09-23 19:36:10,344 INFO L226 Difference]: Without dead ends: 0 [2018-09-23 19:36:10,354 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-09-23 19:36:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-23 19:36:10,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-23 19:36:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-23 19:36:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-23 19:36:10,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2018-09-23 19:36:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:36:10,355 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-23 19:36:10,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-09-23 19:36:10,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-23 19:36:10,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-23 19:36:10,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-23 19:36:16,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,469 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,776 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:16,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,576 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:17,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,520 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:18,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,253 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,322 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:19,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:20,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:20,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:20,217 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:20,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:20,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:20,746 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:20,815 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:20,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,233 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,335 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:21,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:22,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:22,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:22,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:22,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:22,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:22,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:22,616 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:23,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:23,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:23,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:23,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:23,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:23,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:23,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:23,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:24,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:24,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:24,616 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:24,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:24,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:24,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:25,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:25,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:25,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:25,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:25,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:26,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:26,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:26,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:26,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:26,702 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:26,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:27,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:27,442 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:27,696 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:27,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:27,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:27,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:28,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:28,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:28,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:28,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:29,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:29,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:29,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:29,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:29,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:29,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:29,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:29,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:30,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:30,120 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:30,961 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:31,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:31,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:31,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:31,469 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:31,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:32,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:32,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:32,557 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:32,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:33,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:33,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:33,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:33,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:33,574 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:33,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:33,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:33,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:34,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:34,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:34,549 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:35,473 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:35,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:36,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:36,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:36,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:36,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:37,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:38,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:38,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:38,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:39,098 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:39,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:39,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:40,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:41,805 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:41,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:43,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:43,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:43,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:43,921 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:45,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:45,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:45,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:45,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:46,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:46,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:46,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:46,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:47,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:47,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:48,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:48,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:50,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:50,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:51,033 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:51,450 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:51,593 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:51,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:52,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:53,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:53,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:54,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:56,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:56,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:57,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:57,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:57,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:36:59,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:00,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:00,498 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:01,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:07,583 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:08,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:10,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:10,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:10,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:13,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:17,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:17,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:20,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:22,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:23,462 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:25,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 19:37:41,044 WARN L178 SmtUtils]: Spent 1.51 m on a formula simplification. DAG size of input: 5112 DAG size of output: 2150 [2018-09-23 19:37:42,114 WARN L178 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 673 DAG size of output: 664 [2018-09-23 19:39:16,633 WARN L178 SmtUtils]: Spent 1.58 m on a formula simplification. DAG size of input: 2150 DAG size of output: 362 [2018-09-23 19:39:23,122 WARN L178 SmtUtils]: Spent 6.48 s on a formula simplification. DAG size of input: 664 DAG size of output: 59 [2018-09-23 19:39:23,127 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 71) no Hoare annotation was computed. [2018-09-23 19:39:23,129 INFO L422 ceAbstractionStarter]: At program point L64(lines 49 65) the Hoare annotation is: (let ((.cse24 (<= ULTIMATE.start_main_~j~5 7)) (.cse13 (<= ULTIMATE.start_main_~j~5 1)) (.cse11 (<= ULTIMATE.start_main_~j~5 9)) (.cse27 (<= ULTIMATE.start_main_~j~5 2)) (.cse39 (<= ULTIMATE.start_main_~j~5 0)) (.cse19 (<= ULTIMATE.start_main_~j~5 5)) (.cse21 (<= ULTIMATE.start_main_~j~5 3)) (.cse35 (<= ULTIMATE.start_main_~j~5 8)) (.cse31 (<= ULTIMATE.start_main_~j~5 4)) (.cse32 (<= ULTIMATE.start_main_~j~5 6)) (.cse4 (<= 10 ULTIMATE.start_main_~m~5))) (let ((.cse6 (<= 70 ULTIMATE.start_main_~k~5)) (.cse26 (<= 90 ULTIMATE.start_main_~k~5)) (.cse3 (<= 20 ULTIMATE.start_main_~k~5)) (.cse36 (<= 30 ULTIMATE.start_main_~k~5)) (.cse8 (<= 40 ULTIMATE.start_main_~k~5)) (.cse37 (<= 50 ULTIMATE.start_main_~k~5)) (.cse30 (<= ULTIMATE.start_main_~i~5 2)) (.cse34 (<= 60 ULTIMATE.start_main_~k~5)) (.cse20 (and .cse32 .cse4)) (.cse33 (and .cse31 .cse4)) (.cse1 (<= ULTIMATE.start_main_~i~5 5)) (.cse28 (and .cse35 .cse4)) (.cse12 (and .cse21 .cse4)) (.cse23 (and .cse19 .cse4)) (.cse10 (and .cse4 .cse39)) (.cse18 (<= 80 ULTIMATE.start_main_~k~5)) (.cse7 (<= ULTIMATE.start_main_~i~5 6)) (.cse5 (<= ULTIMATE.start_main_~i~5 1)) (.cse22 (<= (+ ULTIMATE.start_main_~i~5 1) ULTIMATE.start_main_~n~5)) (.cse29 (and .cse4 .cse27)) (.cse40 (<= 10 ULTIMATE.start_main_~k~5)) (.cse14 (<= ULTIMATE.start_main_~i~5 0)) (.cse25 (<= ULTIMATE.start_main_~i~5 8)) (.cse38 (and .cse4 .cse11)) (.cse9 (<= ULTIMATE.start_main_~i~5 4)) (.cse17 (<= ULTIMATE.start_main_~i~5 3)) (.cse15 (and .cse13 .cse4)) (.cse0 (<= 10 ULTIMATE.start_main_~n~5)) (.cse2 (and .cse24 .cse4)) (.cse16 (<= ULTIMATE.start_main_~i~5 7))) (or (and .cse0 .cse1 (<= 57 ULTIMATE.start_main_~k~5) .cse2) (and .cse0 .cse3 .cse4 .cse5) (and .cse0 .cse4 .cse6 .cse7) (and .cse0 .cse8 .cse9 .cse10) (and .cse0 (<= 19 ULTIMATE.start_main_~k~5) .cse4 .cse5 .cse11) (and .cse0 .cse12 .cse7 (<= 63 ULTIMATE.start_main_~k~5)) (and .cse0 (<= 1 ULTIMATE.start_main_~k~5) .cse13 .cse4 .cse14) (and .cse0 (<= 71 ULTIMATE.start_main_~k~5) .cse15 .cse16) (and .cse0 .cse17 .cse4 .cse11 (<= 39 ULTIMATE.start_main_~k~5)) (and .cse0 .cse4 .cse18 .cse16) (and .cse0 .cse19 .cse17 .cse4 (<= 35 ULTIMATE.start_main_~k~5)) (and .cse0 (<= 46 ULTIMATE.start_main_~k~5) .cse20 .cse9) (and .cse0 .cse21 .cse17 .cse4 (<= 33 ULTIMATE.start_main_~k~5)) (and .cse0 (<= 76 ULTIMATE.start_main_~k~5) .cse20 .cse16) (and (and .cse22 .cse23) (<= 95 ULTIMATE.start_main_~k~5)) (and .cse0 (<= 7 ULTIMATE.start_main_~k~5) .cse24 .cse4 .cse14) (and .cse0 .cse25 .cse26 .cse4) (and .cse0 (<= 32 ULTIMATE.start_main_~k~5) .cse17 .cse4 .cse27) (and .cse0 (<= 78 ULTIMATE.start_main_~k~5) .cse28 .cse16) (and .cse0 .cse25 (<= 82 ULTIMATE.start_main_~k~5) .cse29) (and .cse0 .cse30 .cse21 (<= 23 ULTIMATE.start_main_~k~5) .cse4) (and .cse0 .cse4 .cse11 (<= 9 ULTIMATE.start_main_~k~5) .cse14) (and .cse0 .cse31 .cse4 (<= 4 ULTIMATE.start_main_~k~5) .cse14) (and .cse0 (<= 3 ULTIMATE.start_main_~k~5) .cse21 .cse4 .cse14) (and .cse0 .cse32 (<= 6 ULTIMATE.start_main_~k~5) .cse4 .cse14) (and .cse0 .cse24 .cse4 (<= 17 ULTIMATE.start_main_~k~5) .cse5) (and .cse0 (<= 2 ULTIMATE.start_main_~k~5) .cse4 .cse27 .cse14) (and .cse0 .cse30 .cse4 (<= 22 ULTIMATE.start_main_~k~5) .cse27) (and (<= 74 ULTIMATE.start_main_~k~5) .cse0 .cse33 .cse16) (and .cse0 .cse34 .cse10 .cse7) (and .cse0 .cse1 (<= 51 ULTIMATE.start_main_~k~5) .cse15) (and .cse0 (<= 42 ULTIMATE.start_main_~k~5) .cse29 .cse9) (and .cse0 .cse6 .cse10 .cse16) (and (<= 98 ULTIMATE.start_main_~k~5) (and .cse22 .cse28)) (and .cse0 .cse25 (<= 87 ULTIMATE.start_main_~k~5) .cse2) (and .cse0 (<= 29 ULTIMATE.start_main_~k~5) .cse30 .cse4 .cse11) (and .cse0 .cse30 (<= 25 ULTIMATE.start_main_~k~5) .cse19 .cse4) (and .cse0 (<= 56 ULTIMATE.start_main_~k~5) .cse1 .cse20) (and .cse0 (<= 12 ULTIMATE.start_main_~k~5) .cse4 .cse5 .cse27) (and .cse0 (<= 53 ULTIMATE.start_main_~k~5) .cse1 .cse12) (and .cse0 (<= 45 ULTIMATE.start_main_~k~5) .cse19 .cse4 .cse9) (and .cse0 (<= 61 ULTIMATE.start_main_~k~5) .cse15 .cse7) (and (<= 93 ULTIMATE.start_main_~k~5) (and .cse22 .cse12)) (and .cse0 .cse1 (<= 55 ULTIMATE.start_main_~k~5) .cse23) (and .cse0 .cse21 (<= 13 ULTIMATE.start_main_~k~5) .cse4 .cse5) (and .cse0 .cse25 (<= 83 ULTIMATE.start_main_~k~5) .cse12) (and .cse0 .cse32 .cse30 (<= 26 ULTIMATE.start_main_~k~5) .cse4) (and .cse26 (and .cse22 .cse10)) (and .cse0 .cse25 (<= 88 ULTIMATE.start_main_~k~5) .cse28) (and (<= 100 ULTIMATE.start_main_~k~5) (and .cse22 .cse4)) (and .cse0 .cse1 .cse29 (<= 52 ULTIMATE.start_main_~k~5)) (and .cse0 .cse35 (<= 48 ULTIMATE.start_main_~k~5) .cse4 .cse9) (and .cse0 .cse30 .cse4 .cse36) (and .cse0 .cse25 (<= 86 ULTIMATE.start_main_~k~5) .cse20) (and .cse0 .cse33 .cse9 (<= 44 ULTIMATE.start_main_~k~5)) (and .cse0 (<= 18 ULTIMATE.start_main_~k~5) .cse35 .cse4 .cse5) (and .cse0 .cse37 .cse9 .cse4) (and .cse0 .cse31 (<= 14 ULTIMATE.start_main_~k~5) .cse4 .cse5) (and .cse0 .cse28 .cse7 (<= 68 ULTIMATE.start_main_~k~5)) (and .cse0 .cse30 (<= 21 ULTIMATE.start_main_~k~5) .cse13 .cse4) (and .cse0 (<= 11 ULTIMATE.start_main_~k~5) .cse13 .cse4 .cse5) (and .cse0 .cse38 (<= 69 ULTIMATE.start_main_~k~5) .cse7) (and .cse0 .cse25 (<= 85 ULTIMATE.start_main_~k~5) .cse23) (and .cse0 (<= 54 ULTIMATE.start_main_~k~5) .cse1 .cse33) (and .cse0 .cse19 .cse4 (<= 5 ULTIMATE.start_main_~k~5) .cse14) (and .cse0 .cse38 .cse1 (<= 59 ULTIMATE.start_main_~k~5)) (and .cse0 .cse3 .cse30 .cse4 .cse39) (and (and .cse22 .cse38) (<= 99 ULTIMATE.start_main_~k~5)) (and .cse0 .cse23 (<= 65 ULTIMATE.start_main_~k~5) .cse7) (and .cse0 .cse17 .cse4 .cse39 .cse36) (and .cse0 .cse30 .cse31 (<= 24 ULTIMATE.start_main_~k~5) .cse4) (and .cse0 .cse35 .cse4 (<= 8 ULTIMATE.start_main_~k~5) .cse14) (and .cse0 .cse32 (<= 16 ULTIMATE.start_main_~k~5) .cse4 .cse5) (and (and .cse22 .cse2) (<= 97 ULTIMATE.start_main_~k~5)) (and .cse0 .cse8 .cse17 .cse4) (and (and .cse22 .cse15) (<= 91 ULTIMATE.start_main_~k~5)) (and .cse0 .cse15 (<= 41 ULTIMATE.start_main_~k~5) .cse9) (and .cse0 .cse33 (<= 64 ULTIMATE.start_main_~k~5) .cse7) (and .cse0 .cse2 .cse7 (<= 67 ULTIMATE.start_main_~k~5)) (and .cse0 .cse19 (<= 15 ULTIMATE.start_main_~k~5) .cse4 .cse5) (and .cse0 .cse30 (<= 27 ULTIMATE.start_main_~k~5) .cse24 .cse4) (and .cse0 .cse37 .cse1 .cse10) (and .cse0 (<= 0 ULTIMATE.start_main_~k~5) .cse4 .cse39 .cse14) (and .cse0 .cse30 .cse35 (<= 28 ULTIMATE.start_main_~k~5) .cse4) (and .cse0 .cse17 .cse24 .cse4 (<= 37 ULTIMATE.start_main_~k~5)) (and .cse0 .cse20 (<= 66 ULTIMATE.start_main_~k~5) .cse7) (and .cse0 .cse38 (<= 79 ULTIMATE.start_main_~k~5) .cse16) (and (and .cse22 .cse33) (<= 94 ULTIMATE.start_main_~k~5)) (and .cse0 .cse4 .cse1 .cse34) (and (and .cse22 .cse20) (<= 96 ULTIMATE.start_main_~k~5)) (and .cse0 .cse35 (<= 38 ULTIMATE.start_main_~k~5) .cse17 .cse4) (and .cse0 .cse25 (<= 84 ULTIMATE.start_main_~k~5) .cse33) (and .cse0 .cse1 .cse28 (<= 58 ULTIMATE.start_main_~k~5)) (and .cse0 .cse24 .cse4 (<= 47 ULTIMATE.start_main_~k~5) .cse9) (and .cse0 (<= 73 ULTIMATE.start_main_~k~5) .cse12 .cse16) (and .cse0 .cse23 .cse16 (<= 75 ULTIMATE.start_main_~k~5)) (and .cse0 .cse21 (<= 43 ULTIMATE.start_main_~k~5) .cse4 .cse9) (and .cse0 .cse31 (<= 34 ULTIMATE.start_main_~k~5) .cse17 .cse4) (and .cse0 .cse32 .cse17 (<= 36 ULTIMATE.start_main_~k~5) .cse4) (and .cse0 (<= 72 ULTIMATE.start_main_~k~5) .cse29 .cse16) (and .cse0 .cse25 .cse10 .cse18) (and .cse0 .cse29 .cse7 (<= 62 ULTIMATE.start_main_~k~5)) (and .cse0 .cse40 .cse4 .cse39 .cse5) (and (and .cse22 .cse29) (<= 92 ULTIMATE.start_main_~k~5)) (and .cse0 .cse25 (<= 89 ULTIMATE.start_main_~k~5) .cse38) (and .cse0 .cse40 .cse4 .cse14) (and .cse0 .cse25 (<= 81 ULTIMATE.start_main_~k~5) .cse15) (and .cse0 .cse38 .cse9 (<= 49 ULTIMATE.start_main_~k~5)) (and .cse0 .cse17 .cse15 (<= 31 ULTIMATE.start_main_~k~5)) (and .cse0 (<= 77 ULTIMATE.start_main_~k~5) .cse2 .cse16)))) [2018-09-23 19:39:23,130 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 71) no Hoare annotation was computed. [2018-09-23 19:39:23,130 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 71) no Hoare annotation was computed. [2018-09-23 19:39:23,131 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 51) no Hoare annotation was computed. [2018-09-23 19:39:23,131 INFO L422 ceAbstractionStarter]: At program point L45(lines 45 50) the Hoare annotation is: false [2018-09-23 19:39:23,131 INFO L422 ceAbstractionStarter]: At program point L70(lines 33 70) the Hoare annotation is: (let ((.cse0 (<= 10 ULTIMATE.start_main_~n~5)) (.cse1 (<= 10 ULTIMATE.start_main_~m~5))) (or (and .cse0 (<= 0 ULTIMATE.start_main_~k~5) .cse1 (<= ULTIMATE.start_main_~i~5 0)) (and .cse0 (<= 60 ULTIMATE.start_main_~k~5) .cse1 (<= ULTIMATE.start_main_~i~5 6)) (and .cse0 (<= 50 ULTIMATE.start_main_~k~5) (<= ULTIMATE.start_main_~i~5 5) .cse1) (and (<= 100 ULTIMATE.start_main_~k~5) .cse1) (and .cse0 (<= 20 ULTIMATE.start_main_~k~5) (<= ULTIMATE.start_main_~i~5 2) .cse1) (and .cse0 (<= 90 ULTIMATE.start_main_~k~5) (<= ULTIMATE.start_main_~i~5 9) .cse1) (and .cse0 (<= ULTIMATE.start_main_~i~5 8) .cse1 (<= 80 ULTIMATE.start_main_~k~5)) (and .cse0 (<= 40 ULTIMATE.start_main_~k~5) (<= ULTIMATE.start_main_~i~5 4) .cse1) (and .cse0 (<= 70 ULTIMATE.start_main_~k~5) .cse1 (<= ULTIMATE.start_main_~i~5 7)) (and .cse0 (<= ULTIMATE.start_main_~i~5 3) .cse1 (<= 30 ULTIMATE.start_main_~k~5)) (and .cse0 (<= 10 ULTIMATE.start_main_~k~5) .cse1 (<= ULTIMATE.start_main_~i~5 1)))) [2018-09-23 19:39:23,164 INFO L202 PluginConnector]: Adding new model nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 07:39:23 BoogieIcfgContainer [2018-09-23 19:39:23,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-23 19:39:23,165 INFO L168 Benchmark]: Toolchain (without parser) took 215934.20 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -797.4 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-09-23 19:39:23,166 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 19:39:23,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.48 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 19:39:23,167 INFO L168 Benchmark]: Boogie Preprocessor took 24.37 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 19:39:23,168 INFO L168 Benchmark]: RCFGBuilder took 317.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-23 19:39:23,169 INFO L168 Benchmark]: TraceAbstraction took 215540.18 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -818.6 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-09-23 19:39:23,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.48 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.37 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 317.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215540.18 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -818.6 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 51]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((10 <= main_~n~5 && main_~i~5 <= 5) && 57 <= main_~k~5) && main_~j~5 <= 7 && 10 <= main_~m~5) || (((10 <= main_~n~5 && 20 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 1)) || (((10 <= main_~n~5 && 10 <= main_~m~5) && 70 <= main_~k~5) && main_~i~5 <= 6)) || (((10 <= main_~n~5 && 40 <= main_~k~5) && main_~i~5 <= 4) && 10 <= main_~m~5 && main_~j~5 <= 0)) || ((((10 <= main_~n~5 && 19 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 1) && main_~j~5 <= 9)) || (((10 <= main_~n~5 && main_~j~5 <= 3 && 10 <= main_~m~5) && main_~i~5 <= 6) && 63 <= main_~k~5)) || ((((10 <= main_~n~5 && 1 <= main_~k~5) && main_~j~5 <= 1) && 10 <= main_~m~5) && main_~i~5 <= 0)) || (((10 <= main_~n~5 && 71 <= main_~k~5) && main_~j~5 <= 1 && 10 <= main_~m~5) && main_~i~5 <= 7)) || ((((10 <= main_~n~5 && main_~i~5 <= 3) && 10 <= main_~m~5) && main_~j~5 <= 9) && 39 <= main_~k~5)) || (((10 <= main_~n~5 && 10 <= main_~m~5) && 80 <= main_~k~5) && main_~i~5 <= 7)) || ((((10 <= main_~n~5 && main_~j~5 <= 5) && main_~i~5 <= 3) && 10 <= main_~m~5) && 35 <= main_~k~5)) || (((10 <= main_~n~5 && 46 <= main_~k~5) && main_~j~5 <= 6 && 10 <= main_~m~5) && main_~i~5 <= 4)) || ((((10 <= main_~n~5 && main_~j~5 <= 3) && main_~i~5 <= 3) && 10 <= main_~m~5) && 33 <= main_~k~5)) || (((10 <= main_~n~5 && 76 <= main_~k~5) && main_~j~5 <= 6 && 10 <= main_~m~5) && main_~i~5 <= 7)) || ((main_~i~5 + 1 <= main_~n~5 && main_~j~5 <= 5 && 10 <= main_~m~5) && 95 <= main_~k~5)) || ((((10 <= main_~n~5 && 7 <= main_~k~5) && main_~j~5 <= 7) && 10 <= main_~m~5) && main_~i~5 <= 0)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 90 <= main_~k~5) && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && 32 <= main_~k~5) && main_~i~5 <= 3) && 10 <= main_~m~5) && main_~j~5 <= 2)) || (((10 <= main_~n~5 && 78 <= main_~k~5) && main_~j~5 <= 8 && 10 <= main_~m~5) && main_~i~5 <= 7)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 82 <= main_~k~5) && 10 <= main_~m~5 && main_~j~5 <= 2)) || ((((10 <= main_~n~5 && main_~i~5 <= 2) && main_~j~5 <= 3) && 23 <= main_~k~5) && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && 10 <= main_~m~5) && main_~j~5 <= 9) && 9 <= main_~k~5) && main_~i~5 <= 0)) || ((((10 <= main_~n~5 && main_~j~5 <= 4) && 10 <= main_~m~5) && 4 <= main_~k~5) && main_~i~5 <= 0)) || ((((10 <= main_~n~5 && 3 <= main_~k~5) && main_~j~5 <= 3) && 10 <= main_~m~5) && main_~i~5 <= 0)) || ((((10 <= main_~n~5 && main_~j~5 <= 6) && 6 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 0)) || ((((10 <= main_~n~5 && main_~j~5 <= 7) && 10 <= main_~m~5) && 17 <= main_~k~5) && main_~i~5 <= 1)) || ((((10 <= main_~n~5 && 2 <= main_~k~5) && 10 <= main_~m~5) && main_~j~5 <= 2) && main_~i~5 <= 0)) || ((((10 <= main_~n~5 && main_~i~5 <= 2) && 10 <= main_~m~5) && 22 <= main_~k~5) && main_~j~5 <= 2)) || (((74 <= main_~k~5 && 10 <= main_~n~5) && main_~j~5 <= 4 && 10 <= main_~m~5) && main_~i~5 <= 7)) || (((10 <= main_~n~5 && 60 <= main_~k~5) && 10 <= main_~m~5 && main_~j~5 <= 0) && main_~i~5 <= 6)) || (((10 <= main_~n~5 && main_~i~5 <= 5) && 51 <= main_~k~5) && main_~j~5 <= 1 && 10 <= main_~m~5)) || (((10 <= main_~n~5 && 42 <= main_~k~5) && 10 <= main_~m~5 && main_~j~5 <= 2) && main_~i~5 <= 4)) || (((10 <= main_~n~5 && 70 <= main_~k~5) && 10 <= main_~m~5 && main_~j~5 <= 0) && main_~i~5 <= 7)) || (98 <= main_~k~5 && main_~i~5 + 1 <= main_~n~5 && main_~j~5 <= 8 && 10 <= main_~m~5)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 87 <= main_~k~5) && main_~j~5 <= 7 && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && 29 <= main_~k~5) && main_~i~5 <= 2) && 10 <= main_~m~5) && main_~j~5 <= 9)) || ((((10 <= main_~n~5 && main_~i~5 <= 2) && 25 <= main_~k~5) && main_~j~5 <= 5) && 10 <= main_~m~5)) || (((10 <= main_~n~5 && 56 <= main_~k~5) && main_~i~5 <= 5) && main_~j~5 <= 6 && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && 12 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 1) && main_~j~5 <= 2)) || (((10 <= main_~n~5 && 53 <= main_~k~5) && main_~i~5 <= 5) && main_~j~5 <= 3 && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && 45 <= main_~k~5) && main_~j~5 <= 5) && 10 <= main_~m~5) && main_~i~5 <= 4)) || (((10 <= main_~n~5 && 61 <= main_~k~5) && main_~j~5 <= 1 && 10 <= main_~m~5) && main_~i~5 <= 6)) || (93 <= main_~k~5 && main_~i~5 + 1 <= main_~n~5 && main_~j~5 <= 3 && 10 <= main_~m~5)) || (((10 <= main_~n~5 && main_~i~5 <= 5) && 55 <= main_~k~5) && main_~j~5 <= 5 && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && main_~j~5 <= 3) && 13 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 1)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 83 <= main_~k~5) && main_~j~5 <= 3 && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && main_~j~5 <= 6) && main_~i~5 <= 2) && 26 <= main_~k~5) && 10 <= main_~m~5)) || (90 <= main_~k~5 && main_~i~5 + 1 <= main_~n~5 && 10 <= main_~m~5 && main_~j~5 <= 0)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 88 <= main_~k~5) && main_~j~5 <= 8 && 10 <= main_~m~5)) || (100 <= main_~k~5 && main_~i~5 + 1 <= main_~n~5 && 10 <= main_~m~5)) || (((10 <= main_~n~5 && main_~i~5 <= 5) && 10 <= main_~m~5 && main_~j~5 <= 2) && 52 <= main_~k~5)) || ((((10 <= main_~n~5 && main_~j~5 <= 8) && 48 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 4)) || (((10 <= main_~n~5 && main_~i~5 <= 2) && 10 <= main_~m~5) && 30 <= main_~k~5)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 86 <= main_~k~5) && main_~j~5 <= 6 && 10 <= main_~m~5)) || (((10 <= main_~n~5 && main_~j~5 <= 4 && 10 <= main_~m~5) && main_~i~5 <= 4) && 44 <= main_~k~5)) || ((((10 <= main_~n~5 && 18 <= main_~k~5) && main_~j~5 <= 8) && 10 <= main_~m~5) && main_~i~5 <= 1)) || (((10 <= main_~n~5 && 50 <= main_~k~5) && main_~i~5 <= 4) && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && main_~j~5 <= 4) && 14 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 1)) || (((10 <= main_~n~5 && main_~j~5 <= 8 && 10 <= main_~m~5) && main_~i~5 <= 6) && 68 <= main_~k~5)) || ((((10 <= main_~n~5 && main_~i~5 <= 2) && 21 <= main_~k~5) && main_~j~5 <= 1) && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && 11 <= main_~k~5) && main_~j~5 <= 1) && 10 <= main_~m~5) && main_~i~5 <= 1)) || (((10 <= main_~n~5 && 10 <= main_~m~5 && main_~j~5 <= 9) && 69 <= main_~k~5) && main_~i~5 <= 6)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 85 <= main_~k~5) && main_~j~5 <= 5 && 10 <= main_~m~5)) || (((10 <= main_~n~5 && 54 <= main_~k~5) && main_~i~5 <= 5) && main_~j~5 <= 4 && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && main_~j~5 <= 5) && 10 <= main_~m~5) && 5 <= main_~k~5) && main_~i~5 <= 0)) || (((10 <= main_~n~5 && 10 <= main_~m~5 && main_~j~5 <= 9) && main_~i~5 <= 5) && 59 <= main_~k~5)) || ((((10 <= main_~n~5 && 20 <= main_~k~5) && main_~i~5 <= 2) && 10 <= main_~m~5) && main_~j~5 <= 0)) || ((main_~i~5 + 1 <= main_~n~5 && 10 <= main_~m~5 && main_~j~5 <= 9) && 99 <= main_~k~5)) || (((10 <= main_~n~5 && main_~j~5 <= 5 && 10 <= main_~m~5) && 65 <= main_~k~5) && main_~i~5 <= 6)) || ((((10 <= main_~n~5 && main_~i~5 <= 3) && 10 <= main_~m~5) && main_~j~5 <= 0) && 30 <= main_~k~5)) || ((((10 <= main_~n~5 && main_~i~5 <= 2) && main_~j~5 <= 4) && 24 <= main_~k~5) && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && main_~j~5 <= 8) && 10 <= main_~m~5) && 8 <= main_~k~5) && main_~i~5 <= 0)) || ((((10 <= main_~n~5 && main_~j~5 <= 6) && 16 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 1)) || ((main_~i~5 + 1 <= main_~n~5 && main_~j~5 <= 7 && 10 <= main_~m~5) && 97 <= main_~k~5)) || (((10 <= main_~n~5 && 40 <= main_~k~5) && main_~i~5 <= 3) && 10 <= main_~m~5)) || ((main_~i~5 + 1 <= main_~n~5 && main_~j~5 <= 1 && 10 <= main_~m~5) && 91 <= main_~k~5)) || (((10 <= main_~n~5 && main_~j~5 <= 1 && 10 <= main_~m~5) && 41 <= main_~k~5) && main_~i~5 <= 4)) || (((10 <= main_~n~5 && main_~j~5 <= 4 && 10 <= main_~m~5) && 64 <= main_~k~5) && main_~i~5 <= 6)) || (((10 <= main_~n~5 && main_~j~5 <= 7 && 10 <= main_~m~5) && main_~i~5 <= 6) && 67 <= main_~k~5)) || ((((10 <= main_~n~5 && main_~j~5 <= 5) && 15 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 1)) || ((((10 <= main_~n~5 && main_~i~5 <= 2) && 27 <= main_~k~5) && main_~j~5 <= 7) && 10 <= main_~m~5)) || (((10 <= main_~n~5 && 50 <= main_~k~5) && main_~i~5 <= 5) && 10 <= main_~m~5 && main_~j~5 <= 0)) || ((((10 <= main_~n~5 && 0 <= main_~k~5) && 10 <= main_~m~5) && main_~j~5 <= 0) && main_~i~5 <= 0)) || ((((10 <= main_~n~5 && main_~i~5 <= 2) && main_~j~5 <= 8) && 28 <= main_~k~5) && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && main_~i~5 <= 3) && main_~j~5 <= 7) && 10 <= main_~m~5) && 37 <= main_~k~5)) || (((10 <= main_~n~5 && main_~j~5 <= 6 && 10 <= main_~m~5) && 66 <= main_~k~5) && main_~i~5 <= 6)) || (((10 <= main_~n~5 && 10 <= main_~m~5 && main_~j~5 <= 9) && 79 <= main_~k~5) && main_~i~5 <= 7)) || ((main_~i~5 + 1 <= main_~n~5 && main_~j~5 <= 4 && 10 <= main_~m~5) && 94 <= main_~k~5)) || (((10 <= main_~n~5 && 10 <= main_~m~5) && main_~i~5 <= 5) && 60 <= main_~k~5)) || ((main_~i~5 + 1 <= main_~n~5 && main_~j~5 <= 6 && 10 <= main_~m~5) && 96 <= main_~k~5)) || ((((10 <= main_~n~5 && main_~j~5 <= 8) && 38 <= main_~k~5) && main_~i~5 <= 3) && 10 <= main_~m~5)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 84 <= main_~k~5) && main_~j~5 <= 4 && 10 <= main_~m~5)) || (((10 <= main_~n~5 && main_~i~5 <= 5) && main_~j~5 <= 8 && 10 <= main_~m~5) && 58 <= main_~k~5)) || ((((10 <= main_~n~5 && main_~j~5 <= 7) && 10 <= main_~m~5) && 47 <= main_~k~5) && main_~i~5 <= 4)) || (((10 <= main_~n~5 && 73 <= main_~k~5) && main_~j~5 <= 3 && 10 <= main_~m~5) && main_~i~5 <= 7)) || (((10 <= main_~n~5 && main_~j~5 <= 5 && 10 <= main_~m~5) && main_~i~5 <= 7) && 75 <= main_~k~5)) || ((((10 <= main_~n~5 && main_~j~5 <= 3) && 43 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 4)) || ((((10 <= main_~n~5 && main_~j~5 <= 4) && 34 <= main_~k~5) && main_~i~5 <= 3) && 10 <= main_~m~5)) || ((((10 <= main_~n~5 && main_~j~5 <= 6) && main_~i~5 <= 3) && 36 <= main_~k~5) && 10 <= main_~m~5)) || (((10 <= main_~n~5 && 72 <= main_~k~5) && 10 <= main_~m~5 && main_~j~5 <= 2) && main_~i~5 <= 7)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 10 <= main_~m~5 && main_~j~5 <= 0) && 80 <= main_~k~5)) || (((10 <= main_~n~5 && 10 <= main_~m~5 && main_~j~5 <= 2) && main_~i~5 <= 6) && 62 <= main_~k~5)) || ((((10 <= main_~n~5 && 10 <= main_~k~5) && 10 <= main_~m~5) && main_~j~5 <= 0) && main_~i~5 <= 1)) || ((main_~i~5 + 1 <= main_~n~5 && 10 <= main_~m~5 && main_~j~5 <= 2) && 92 <= main_~k~5)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 89 <= main_~k~5) && 10 <= main_~m~5 && main_~j~5 <= 9)) || (((10 <= main_~n~5 && 10 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 0)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 81 <= main_~k~5) && main_~j~5 <= 1 && 10 <= main_~m~5)) || (((10 <= main_~n~5 && 10 <= main_~m~5 && main_~j~5 <= 9) && main_~i~5 <= 4) && 49 <= main_~k~5)) || (((10 <= main_~n~5 && main_~i~5 <= 3) && main_~j~5 <= 1 && 10 <= main_~m~5) && 31 <= main_~k~5)) || (((10 <= main_~n~5 && 77 <= main_~k~5) && main_~j~5 <= 7 && 10 <= main_~m~5) && main_~i~5 <= 7) - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((((((((((((10 <= main_~n~5 && 0 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 0) || (((10 <= main_~n~5 && 60 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 6)) || (((10 <= main_~n~5 && 50 <= main_~k~5) && main_~i~5 <= 5) && 10 <= main_~m~5)) || (100 <= main_~k~5 && 10 <= main_~m~5)) || (((10 <= main_~n~5 && 20 <= main_~k~5) && main_~i~5 <= 2) && 10 <= main_~m~5)) || (((10 <= main_~n~5 && 90 <= main_~k~5) && main_~i~5 <= 9) && 10 <= main_~m~5)) || (((10 <= main_~n~5 && main_~i~5 <= 8) && 10 <= main_~m~5) && 80 <= main_~k~5)) || (((10 <= main_~n~5 && 40 <= main_~k~5) && main_~i~5 <= 4) && 10 <= main_~m~5)) || (((10 <= main_~n~5 && 70 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 7)) || (((10 <= main_~n~5 && main_~i~5 <= 3) && 10 <= main_~m~5) && 30 <= main_~k~5)) || (((10 <= main_~n~5 && 10 <= main_~k~5) && 10 <= main_~m~5) && main_~i~5 <= 1) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 215.4s OverallTime, 19 OverallIterations, 100 TraceHistogramMax, 6.5s AutomataDifference, 0.0s DeadEndRemovalTime, 192.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 254 SDtfs, 398 SDslu, 417 SDs, 0 SdLazy, 636 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 963 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 357 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1747 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=18, 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: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 90 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5119 NumberOfFragments, 1927 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3229534 FormulaSimplificationTreeSizeReduction, 91.7s HoareSimplificationTime, 3 FomulaSimplificationsInter, 251704 FormulaSimplificationTreeSizeReductionInter, 100.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 13.6s InterpolantComputationTime, 1533 NumberOfCodeBlocks, 1502 NumberOfCodeBlocksAsserted, 164 NumberOfCheckSat, 1498 ConstructedInterpolants, 0 QuantifiedInterpolants, 571602 SizeOfPredicates, 32 NumberOfNonLiveVariables, 3238 ConjunctsInSsa, 130 ConjunctsInUnsatCore, 35 InterpolantComputations, 3 PerfectInterpolantSequences, 12968/42447 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested.i_4.bplTransformedIcfg_BEv2_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-23_19-39-23-199.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested.i_4.bplTransformedIcfg_BEv2_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-23_19-39-23-199.csv Received shutdown request...