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-bd42740 [2018-09-23 21:22:13,028 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-23 21:22:13,030 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-23 21:22:13,042 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-23 21:22:13,042 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-23 21:22:13,043 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-23 21:22:13,045 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-23 21:22:13,047 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-23 21:22:13,048 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-23 21:22:13,049 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-23 21:22:13,050 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-23 21:22:13,050 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-23 21:22:13,051 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-23 21:22:13,052 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-23 21:22:13,053 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-23 21:22:13,054 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-23 21:22:13,055 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-23 21:22:13,057 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-23 21:22:13,059 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-23 21:22:13,061 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-23 21:22:13,062 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-23 21:22:13,063 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-23 21:22:13,066 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-23 21:22:13,066 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-23 21:22:13,066 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-23 21:22:13,067 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-23 21:22:13,068 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-23 21:22:13,069 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-23 21:22:13,070 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-23 21:22:13,071 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-23 21:22:13,071 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-23 21:22:13,072 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-23 21:22:13,072 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-23 21:22:13,072 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-23 21:22:13,073 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-23 21:22:13,074 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-23 21:22:13,075 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 21:22:13,090 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-23 21:22:13,090 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-23 21:22:13,091 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-23 21:22:13,091 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-23 21:22:13,092 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-23 21:22:13,092 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-23 21:22:13,092 INFO L133 SettingsManager]: * Use SBE=true [2018-09-23 21:22:13,092 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-23 21:22:13,092 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-23 21:22:13,093 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-23 21:22:13,093 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-23 21:22:13,093 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-23 21:22:13,093 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-23 21:22:13,093 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-23 21:22:13,094 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-23 21:22:13,094 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-23 21:22:13,094 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-23 21:22:13,094 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-23 21:22:13,094 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-23 21:22:13,095 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-23 21:22:13,095 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-23 21:22:13,095 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-23 21:22:13,095 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-23 21:22:13,095 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-23 21:22:13,096 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-23 21:22:13,096 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-23 21:22:13,096 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-23 21:22:13,096 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-23 21:22:13,096 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-23 21:22:13,097 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-23 21:22:13,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-23 21:22:13,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-23 21:22:13,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-23 21:22:13,185 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-23 21:22:13,186 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-23 21:22:13,186 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl [2018-09-23 21:22:13,187 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl' [2018-09-23 21:22:13,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-23 21:22:13,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-23 21:22:13,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-23 21:22:13,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-23 21:22:13,250 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-23 21:22:13,270 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 09:22:13" (1/1) ... [2018-09-23 21:22:13,282 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 09:22:13" (1/1) ... [2018-09-23 21:22:13,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-23 21:22:13,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-23 21:22:13,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-23 21:22:13,290 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-23 21:22:13,300 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 09:22:13" (1/1) ... [2018-09-23 21:22:13,300 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 09:22:13" (1/1) ... [2018-09-23 21:22:13,301 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 09:22:13" (1/1) ... [2018-09-23 21:22:13,301 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 09:22:13" (1/1) ... [2018-09-23 21:22:13,304 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 09:22:13" (1/1) ... [2018-09-23 21:22:13,305 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 09:22:13" (1/1) ... [2018-09-23 21:22:13,306 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 09:22:13" (1/1) ... [2018-09-23 21:22:13,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-23 21:22:13,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-23 21:22:13,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-23 21:22:13,308 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-23 21:22:13,309 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 09:22:13" (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 21:22:13,385 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-23 21:22:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-23 21:22:13,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-23 21:22:13,673 INFO L354 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-23 21:22:13,674 INFO L202 PluginConnector]: Adding new model nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 09:22:13 BoogieIcfgContainer [2018-09-23 21:22:13,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-23 21:22:13,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-23 21:22:13,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-23 21:22:13,681 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-23 21:22:13,682 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 09:22:13" (1/2) ... [2018-09-23 21:22:13,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a518816 and model type nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 09:22:13, skipping insertion in model container [2018-09-23 21:22:13,683 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 09:22:13" (2/2) ... [2018-09-23 21:22:13,686 INFO L112 eAbstractionObserver]: Analyzing ICFG nested.i_4.bplTransformedIcfg_BEv2_3.bpl [2018-09-23 21:22:13,697 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-23 21:22:13,707 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-23 21:22:13,762 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-23 21:22:13,763 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-23 21:22:13,763 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-23 21:22:13,764 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-23 21:22:13,764 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-23 21:22:13,764 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-23 21:22:13,764 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-23 21:22:13,764 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-23 21:22:13,764 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-23 21:22:13,780 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-09-23 21:22:13,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-23 21:22:13,797 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:13,799 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-23 21:22:13,801 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:13,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:13,808 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-09-23 21:22:13,811 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:13,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:13,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:13,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:13,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:13,983 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 21:22:13,985 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:22:13,986 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:22:13,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:22:14,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:22:14,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:22:14,005 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-09-23 21:22:14,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:14,081 INFO L93 Difference]: Finished difference Result 11 states and 17 transitions. [2018-09-23 21:22:14,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:22:14,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-23 21:22:14,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:14,098 INFO L225 Difference]: With dead ends: 11 [2018-09-23 21:22:14,099 INFO L226 Difference]: Without dead ends: 7 [2018-09-23 21:22:14,103 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 21:22:14,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-23 21:22:14,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-09-23 21:22:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-23 21:22:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-09-23 21:22:14,143 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 7 transitions. Word has length 3 [2018-09-23 21:22:14,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:14,144 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-09-23 21:22:14,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:22:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-09-23 21:22:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-23 21:22:14,145 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:14,145 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-09-23 21:22:14,145 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:14,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:14,145 INFO L82 PathProgramCache]: Analyzing trace with hash 28854189, now seen corresponding path program 1 times [2018-09-23 21:22:14,146 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:14,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:14,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:14,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:14,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:14,220 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 21:22:14,221 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:22:14,221 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-23 21:22:14,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-23 21:22:14,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-23 21:22:14,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-23 21:22:14,224 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. Second operand 4 states. [2018-09-23 21:22:14,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:14,313 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2018-09-23 21:22:14,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-23 21:22:14,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-09-23 21:22:14,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:14,314 INFO L225 Difference]: With dead ends: 11 [2018-09-23 21:22:14,314 INFO L226 Difference]: Without dead ends: 7 [2018-09-23 21:22:14,315 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 21:22:14,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-23 21:22:14,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-23 21:22:14,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-23 21:22:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-09-23 21:22:14,319 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2018-09-23 21:22:14,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:14,319 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-09-23 21:22:14,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-23 21:22:14,320 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-09-23 21:22:14,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-23 21:22:14,320 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:14,320 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-09-23 21:22:14,321 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:14,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:14,321 INFO L82 PathProgramCache]: Analyzing trace with hash 894431694, now seen corresponding path program 1 times [2018-09-23 21:22:14,321 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:14,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:14,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:14,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:14,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:14,433 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 21:22:14,434 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:14,434 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 21:22:14,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:14,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:14,603 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 21:22:14,625 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:14,625 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-09-23 21:22:14,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-23 21:22:14,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-23 21:22:14,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-09-23 21:22:14,627 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. Second operand 7 states. [2018-09-23 21:22:14,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:14,677 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2018-09-23 21:22:14,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-23 21:22:14,678 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-09-23 21:22:14,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:14,679 INFO L225 Difference]: With dead ends: 13 [2018-09-23 21:22:14,679 INFO L226 Difference]: Without dead ends: 8 [2018-09-23 21:22:14,680 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-09-23 21:22:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-23 21:22:14,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-09-23 21:22:14,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-09-23 21:22:14,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-09-23 21:22:14,683 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2018-09-23 21:22:14,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:14,684 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-09-23 21:22:14,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-23 21:22:14,684 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-09-23 21:22:14,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-23 21:22:14,685 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:14,685 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2018-09-23 21:22:14,685 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:14,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:14,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1957530573, now seen corresponding path program 2 times [2018-09-23 21:22:14,686 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:14,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:14,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:14,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:14,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:14,836 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 21:22:14,837 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:14,837 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 21:22:14,855 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-23 21:22:14,893 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-23 21:22:14,893 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:14,896 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:15,116 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 21:22:15,147 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:15,147 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7 [2018-09-23 21:22:15,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-23 21:22:15,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-23 21:22:15,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-23 21:22:15,149 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 8 states. [2018-09-23 21:22:15,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:15,723 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2018-09-23 21:22:15,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-23 21:22:15,725 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-09-23 21:22:15,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:15,726 INFO L225 Difference]: With dead ends: 24 [2018-09-23 21:22:15,726 INFO L226 Difference]: Without dead ends: 18 [2018-09-23 21:22:15,728 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2018-09-23 21:22:15,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-23 21:22:15,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2018-09-23 21:22:15,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-23 21:22:15,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-09-23 21:22:15,734 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2018-09-23 21:22:15,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:15,735 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-09-23 21:22:15,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-23 21:22:15,735 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-09-23 21:22:15,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-23 21:22:15,736 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:15,736 INFO L375 BasicCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1] [2018-09-23 21:22:15,737 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:15,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:15,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1143121891, now seen corresponding path program 3 times [2018-09-23 21:22:15,737 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:15,737 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:15,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:15,738 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:15,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:15,957 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 21:22:15,958 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:15,958 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 21:22:15,970 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-23 21:22:16,067 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-09-23 21:22:16,067 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:16,069 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:16,282 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 21:22:16,306 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:16,306 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-09-23 21:22:16,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-23 21:22:16,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-23 21:22:16,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-09-23 21:22:16,308 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 11 states. [2018-09-23 21:22:16,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:16,362 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2018-09-23 21:22:16,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-23 21:22:16,365 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2018-09-23 21:22:16,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:16,366 INFO L225 Difference]: With dead ends: 24 [2018-09-23 21:22:16,366 INFO L226 Difference]: Without dead ends: 16 [2018-09-23 21:22:16,367 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 21:22:16,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-23 21:22:16,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-09-23 21:22:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-23 21:22:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-09-23 21:22:16,374 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2018-09-23 21:22:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:16,374 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-09-23 21:22:16,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-23 21:22:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-09-23 21:22:16,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-23 21:22:16,375 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:16,375 INFO L375 BasicCegarLoop]: trace histogram [8, 2, 2, 1, 1, 1] [2018-09-23 21:22:16,375 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:16,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:16,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1762706263, now seen corresponding path program 4 times [2018-09-23 21:22:16,376 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:16,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:16,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:16,377 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:16,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:16,510 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 21:22:16,511 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:16,511 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 21:22:16,520 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-23 21:22:16,539 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-23 21:22:16,540 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:16,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:16,677 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 21:22:16,698 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:16,699 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-09-23 21:22:16,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-23 21:22:16,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-23 21:22:16,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2018-09-23 21:22:16,700 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 13 states. [2018-09-23 21:22:16,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:16,745 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2018-09-23 21:22:16,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-23 21:22:16,748 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2018-09-23 21:22:16,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:16,749 INFO L225 Difference]: With dead ends: 27 [2018-09-23 21:22:16,749 INFO L226 Difference]: Without dead ends: 18 [2018-09-23 21:22:16,750 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2018-09-23 21:22:16,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-23 21:22:16,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-09-23 21:22:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-23 21:22:16,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-09-23 21:22:16,756 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 15 [2018-09-23 21:22:16,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:16,756 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-09-23 21:22:16,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-23 21:22:16,757 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-09-23 21:22:16,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-23 21:22:16,757 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:16,757 INFO L375 BasicCegarLoop]: trace histogram [10, 2, 2, 1, 1, 1] [2018-09-23 21:22:16,758 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:16,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:16,758 INFO L82 PathProgramCache]: Analyzing trace with hash 650597027, now seen corresponding path program 5 times [2018-09-23 21:22:16,758 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:16,759 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:16,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:16,760 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:16,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:17,022 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 21:22:17,022 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:17,022 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 21:22:17,034 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-23 21:22:17,086 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2018-09-23 21:22:17,087 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:17,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:17,247 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 21:22:17,274 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:17,274 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-09-23 21:22:17,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-23 21:22:17,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-23 21:22:17,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2018-09-23 21:22:17,276 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 15 states. [2018-09-23 21:22:17,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:17,388 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-09-23 21:22:17,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-23 21:22:17,392 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 17 [2018-09-23 21:22:17,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:17,393 INFO L225 Difference]: With dead ends: 30 [2018-09-23 21:22:17,393 INFO L226 Difference]: Without dead ends: 20 [2018-09-23 21:22:17,394 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2018-09-23 21:22:17,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-09-23 21:22:17,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-09-23 21:22:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-23 21:22:17,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-09-23 21:22:17,401 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 17 [2018-09-23 21:22:17,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:17,401 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-09-23 21:22:17,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-23 21:22:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-09-23 21:22:17,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-23 21:22:17,402 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:17,402 INFO L375 BasicCegarLoop]: trace histogram [12, 2, 2, 1, 1, 1] [2018-09-23 21:22:17,402 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:17,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:17,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1318725353, now seen corresponding path program 6 times [2018-09-23 21:22:17,403 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:17,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:17,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:17,404 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:17,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:17,584 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 21:22:17,585 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:17,585 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 21:22:17,595 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-23 21:22:17,609 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2018-09-23 21:22:17,609 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:17,611 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:17,685 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 21:22:17,711 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:17,711 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 12 [2018-09-23 21:22:17,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-23 21:22:17,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-23 21:22:17,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-09-23 21:22:17,712 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 13 states. [2018-09-23 21:22:19,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:19,022 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2018-09-23 21:22:19,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-23 21:22:19,022 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2018-09-23 21:22:19,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:19,023 INFO L225 Difference]: With dead ends: 50 [2018-09-23 21:22:19,023 INFO L226 Difference]: Without dead ends: 39 [2018-09-23 21:22:19,025 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=597, Invalid=1295, Unknown=0, NotChecked=0, Total=1892 [2018-09-23 21:22:19,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-09-23 21:22:19,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2018-09-23 21:22:19,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-09-23 21:22:19,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-09-23 21:22:19,034 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 19 [2018-09-23 21:22:19,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:19,035 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-09-23 21:22:19,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-23 21:22:19,035 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-09-23 21:22:19,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-23 21:22:19,036 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:19,036 INFO L375 BasicCegarLoop]: trace histogram [21, 3, 3, 1, 1, 1] [2018-09-23 21:22:19,036 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:19,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:19,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1893667570, now seen corresponding path program 7 times [2018-09-23 21:22:19,037 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:19,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:19,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:19,038 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:19,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:19,243 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 21:22:19,244 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:19,244 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 21:22:19,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:19,294 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:19,539 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 21:22:19,560 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:19,561 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-09-23 21:22:19,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-23 21:22:19,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-23 21:22:19,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2018-09-23 21:22:19,562 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 19 states. [2018-09-23 21:22:19,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:19,653 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2018-09-23 21:22:19,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-23 21:22:19,657 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 30 [2018-09-23 21:22:19,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:19,658 INFO L225 Difference]: With dead ends: 55 [2018-09-23 21:22:19,658 INFO L226 Difference]: Without dead ends: 34 [2018-09-23 21:22:19,659 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2018-09-23 21:22:19,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-09-23 21:22:19,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-09-23 21:22:19,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-09-23 21:22:19,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-09-23 21:22:19,668 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 30 [2018-09-23 21:22:19,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:19,668 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-09-23 21:22:19,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-23 21:22:19,668 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-09-23 21:22:19,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-23 21:22:19,669 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:19,670 INFO L375 BasicCegarLoop]: trace histogram [24, 3, 3, 1, 1, 1] [2018-09-23 21:22:19,670 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:19,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:19,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1170740991, now seen corresponding path program 8 times [2018-09-23 21:22:19,670 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:19,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:19,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:19,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:19,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:20,063 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 21:22:20,063 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:20,064 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 21:22:20,077 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-23 21:22:20,126 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-23 21:22:20,126 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:20,129 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:20,330 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 21:22:20,361 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:20,362 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-09-23 21:22:20,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-23 21:22:20,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-23 21:22:20,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-09-23 21:22:20,363 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 21 states. [2018-09-23 21:22:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:20,598 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2018-09-23 21:22:20,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-23 21:22:20,599 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 33 [2018-09-23 21:22:20,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:20,600 INFO L225 Difference]: With dead ends: 60 [2018-09-23 21:22:20,600 INFO L226 Difference]: Without dead ends: 37 [2018-09-23 21:22:20,601 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 21:22:20,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-09-23 21:22:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-09-23 21:22:20,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-09-23 21:22:20,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-09-23 21:22:20,611 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 33 [2018-09-23 21:22:20,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:20,611 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-09-23 21:22:20,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-23 21:22:20,611 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-09-23 21:22:20,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-23 21:22:20,613 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:20,613 INFO L375 BasicCegarLoop]: trace histogram [27, 3, 3, 1, 1, 1] [2018-09-23 21:22:20,613 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:20,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:20,613 INFO L82 PathProgramCache]: Analyzing trace with hash 251197998, now seen corresponding path program 9 times [2018-09-23 21:22:20,614 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:20,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:20,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:20,615 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:20,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:21,064 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 21:22:21,064 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:21,064 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 21:22:21,074 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-23 21:22:21,177 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2018-09-23 21:22:21,178 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:21,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:21,454 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 21:22:21,476 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:21,476 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2018-09-23 21:22:21,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-09-23 21:22:21,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-09-23 21:22:21,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=308, Unknown=0, NotChecked=0, Total=506 [2018-09-23 21:22:21,478 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 23 states. [2018-09-23 21:22:21,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:21,549 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2018-09-23 21:22:21,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-23 21:22:21,555 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 36 [2018-09-23 21:22:21,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:21,556 INFO L225 Difference]: With dead ends: 65 [2018-09-23 21:22:21,556 INFO L226 Difference]: Without dead ends: 40 [2018-09-23 21:22:21,556 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=308, Unknown=0, NotChecked=0, Total=506 [2018-09-23 21:22:21,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-09-23 21:22:21,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-09-23 21:22:21,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-09-23 21:22:21,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-09-23 21:22:21,572 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 36 [2018-09-23 21:22:21,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:21,572 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-09-23 21:22:21,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-09-23 21:22:21,572 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-09-23 21:22:21,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-23 21:22:21,573 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:21,574 INFO L375 BasicCegarLoop]: trace histogram [30, 3, 3, 1, 1, 1] [2018-09-23 21:22:21,574 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:21,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:21,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1180066335, now seen corresponding path program 10 times [2018-09-23 21:22:21,576 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:21,576 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:21,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:21,577 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:21,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:21,760 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 21:22:21,761 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:21,761 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 21:22:21,769 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-23 21:22:21,828 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-23 21:22:21,829 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:21,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:21,972 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 21:22:21,995 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:21,995 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2018-09-23 21:22:21,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-23 21:22:21,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-23 21:22:21,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-09-23 21:22:21,996 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 10 states. [2018-09-23 21:22:22,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:22,088 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2018-09-23 21:22:22,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-23 21:22:22,090 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2018-09-23 21:22:22,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:22,091 INFO L225 Difference]: With dead ends: 65 [2018-09-23 21:22:22,091 INFO L226 Difference]: Without dead ends: 63 [2018-09-23 21:22:22,092 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 21:22:22,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-23 21:22:22,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2018-09-23 21:22:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-23 21:22:22,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-09-23 21:22:22,104 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 39 [2018-09-23 21:22:22,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:22,105 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-09-23 21:22:22,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-23 21:22:22,105 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-09-23 21:22:22,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-23 21:22:22,107 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:22,107 INFO L375 BasicCegarLoop]: trace histogram [40, 4, 4, 1, 1, 1] [2018-09-23 21:22:22,107 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:22,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:22,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1381898283, now seen corresponding path program 11 times [2018-09-23 21:22:22,107 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:22,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:22,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:22,109 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:22,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:22,255 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 21:22:22,255 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:22,255 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 21:22:22,263 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-23 21:22:22,329 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2018-09-23 21:22:22,329 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:22,335 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:22,427 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 21:22:22,448 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:22,448 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2018-09-23 21:22:22,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-23 21:22:22,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-23 21:22:22,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2018-09-23 21:22:22,449 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 12 states. [2018-09-23 21:22:22,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:22,613 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2018-09-23 21:22:22,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-23 21:22:22,613 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2018-09-23 21:22:22,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:22,614 INFO L225 Difference]: With dead ends: 77 [2018-09-23 21:22:22,615 INFO L226 Difference]: Without dead ends: 75 [2018-09-23 21:22:22,616 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 21:22:22,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-09-23 21:22:22,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 64. [2018-09-23 21:22:22,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-23 21:22:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2018-09-23 21:22:22,633 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 51 [2018-09-23 21:22:22,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:22,634 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2018-09-23 21:22:22,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-23 21:22:22,634 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2018-09-23 21:22:22,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-23 21:22:22,635 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:22,636 INFO L375 BasicCegarLoop]: trace histogram [50, 5, 5, 1, 1, 1] [2018-09-23 21:22:22,636 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:22,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:22,636 INFO L82 PathProgramCache]: Analyzing trace with hash -536120459, now seen corresponding path program 12 times [2018-09-23 21:22:22,636 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:22,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:22,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:22,637 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:22,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:22,809 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 21:22:22,810 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:22,810 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 21:22:22,819 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-23 21:22:22,891 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2018-09-23 21:22:22,892 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:22,895 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:23,005 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 21:22:23,027 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:23,027 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-09-23 21:22:23,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-23 21:22:23,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-23 21:22:23,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2018-09-23 21:22:23,028 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 14 states. [2018-09-23 21:22:23,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:23,095 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2018-09-23 21:22:23,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-23 21:22:23,097 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 63 [2018-09-23 21:22:23,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:23,098 INFO L225 Difference]: With dead ends: 89 [2018-09-23 21:22:23,098 INFO L226 Difference]: Without dead ends: 87 [2018-09-23 21:22:23,099 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2018-09-23 21:22:23,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-23 21:22:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 76. [2018-09-23 21:22:23,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-09-23 21:22:23,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2018-09-23 21:22:23,118 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 63 [2018-09-23 21:22:23,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:23,118 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2018-09-23 21:22:23,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-23 21:22:23,118 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2018-09-23 21:22:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-09-23 21:22:23,120 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:23,120 INFO L375 BasicCegarLoop]: trace histogram [60, 6, 6, 1, 1, 1] [2018-09-23 21:22:23,120 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:23,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:23,120 INFO L82 PathProgramCache]: Analyzing trace with hash -681037889, now seen corresponding path program 13 times [2018-09-23 21:22:23,120 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:23,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:23,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:23,121 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:23,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:23,331 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 21:22:23,331 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:23,331 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 21:22:23,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:23,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:23,560 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 21:22:23,584 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:23,584 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-09-23 21:22:23,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-23 21:22:23,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-23 21:22:23,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2018-09-23 21:22:23,585 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand 16 states. [2018-09-23 21:22:23,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:23,823 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2018-09-23 21:22:23,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-23 21:22:23,824 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 75 [2018-09-23 21:22:23,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:23,825 INFO L225 Difference]: With dead ends: 101 [2018-09-23 21:22:23,825 INFO L226 Difference]: Without dead ends: 99 [2018-09-23 21:22:23,826 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 21:22:23,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-09-23 21:22:23,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 88. [2018-09-23 21:22:23,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-09-23 21:22:23,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2018-09-23 21:22:23,849 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 75 [2018-09-23 21:22:23,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:23,850 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2018-09-23 21:22:23,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-23 21:22:23,850 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2018-09-23 21:22:23,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-09-23 21:22:23,851 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:23,851 INFO L375 BasicCegarLoop]: trace histogram [70, 7, 7, 1, 1, 1] [2018-09-23 21:22:23,852 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:23,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:23,852 INFO L82 PathProgramCache]: Analyzing trace with hash -815084279, now seen corresponding path program 14 times [2018-09-23 21:22:23,852 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:23,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:23,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:23,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:23,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:24,254 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 21:22:24,254 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:24,254 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 21:22:24,267 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-23 21:22:24,354 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-23 21:22:24,354 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:24,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:24,785 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 21:22:24,806 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:24,806 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2018-09-23 21:22:24,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-23 21:22:24,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-23 21:22:24,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2018-09-23 21:22:24,808 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand 18 states. [2018-09-23 21:22:25,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:25,077 INFO L93 Difference]: Finished difference Result 113 states and 122 transitions. [2018-09-23 21:22:25,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-23 21:22:25,078 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 87 [2018-09-23 21:22:25,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:25,079 INFO L225 Difference]: With dead ends: 113 [2018-09-23 21:22:25,079 INFO L226 Difference]: Without dead ends: 111 [2018-09-23 21:22:25,079 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2018-09-23 21:22:25,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-09-23 21:22:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 100. [2018-09-23 21:22:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-09-23 21:22:25,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 108 transitions. [2018-09-23 21:22:25,100 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 108 transitions. Word has length 87 [2018-09-23 21:22:25,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:25,100 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 108 transitions. [2018-09-23 21:22:25,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-23 21:22:25,101 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 108 transitions. [2018-09-23 21:22:25,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-09-23 21:22:25,102 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:25,102 INFO L375 BasicCegarLoop]: trace histogram [80, 8, 8, 1, 1, 1] [2018-09-23 21:22:25,103 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:25,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:25,103 INFO L82 PathProgramCache]: Analyzing trace with hash 558484307, now seen corresponding path program 15 times [2018-09-23 21:22:25,103 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:25,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:25,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,104 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:25,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:25,387 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 21:22:25,387 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:25,388 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 21:22:25,396 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-23 21:22:25,545 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 49 check-sat command(s) [2018-09-23 21:22:25,546 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:25,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:25,761 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 21:22:25,781 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:25,782 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2018-09-23 21:22:25,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-23 21:22:25,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-23 21:22:25,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2018-09-23 21:22:25,783 INFO L87 Difference]: Start difference. First operand 100 states and 108 transitions. Second operand 20 states. [2018-09-23 21:22:25,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:25,877 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2018-09-23 21:22:25,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-23 21:22:25,878 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 99 [2018-09-23 21:22:25,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:25,879 INFO L225 Difference]: With dead ends: 125 [2018-09-23 21:22:25,879 INFO L226 Difference]: Without dead ends: 123 [2018-09-23 21:22:25,880 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2018-09-23 21:22:25,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-09-23 21:22:25,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 112. [2018-09-23 21:22:25,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-09-23 21:22:25,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 121 transitions. [2018-09-23 21:22:25,906 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 121 transitions. Word has length 99 [2018-09-23 21:22:25,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:25,907 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 121 transitions. [2018-09-23 21:22:25,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-23 21:22:25,907 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 121 transitions. [2018-09-23 21:22:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-09-23 21:22:25,908 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:25,908 INFO L375 BasicCegarLoop]: trace histogram [90, 9, 9, 1, 1, 1] [2018-09-23 21:22:25,909 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:25,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:25,909 INFO L82 PathProgramCache]: Analyzing trace with hash -2005161315, now seen corresponding path program 16 times [2018-09-23 21:22:25,909 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:25,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:25,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,910 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:25,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:26,377 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 21:22:26,378 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:26,378 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 21:22:26,386 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-23 21:22:26,489 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-23 21:22:26,489 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:22:26,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:26,713 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 21:22:26,734 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:26,735 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2018-09-23 21:22:26,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-23 21:22:26,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-23 21:22:26,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=276, Unknown=0, NotChecked=0, Total=462 [2018-09-23 21:22:26,736 INFO L87 Difference]: Start difference. First operand 112 states and 121 transitions. Second operand 22 states. [2018-09-23 21:22:26,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:26,841 INFO L93 Difference]: Finished difference Result 137 states and 148 transitions. [2018-09-23 21:22:26,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-23 21:22:26,842 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 111 [2018-09-23 21:22:26,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:26,843 INFO L225 Difference]: With dead ends: 137 [2018-09-23 21:22:26,843 INFO L226 Difference]: Without dead ends: 135 [2018-09-23 21:22:26,844 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=276, Unknown=0, NotChecked=0, Total=462 [2018-09-23 21:22:26,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-09-23 21:22:26,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 124. [2018-09-23 21:22:26,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-09-23 21:22:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 134 transitions. [2018-09-23 21:22:26,867 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 134 transitions. Word has length 111 [2018-09-23 21:22:26,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:26,868 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 134 transitions. [2018-09-23 21:22:26,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-09-23 21:22:26,868 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2018-09-23 21:22:26,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-23 21:22:26,868 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:26,869 INFO L375 BasicCegarLoop]: trace histogram [100, 10, 10, 1, 1, 1] [2018-09-23 21:22:26,869 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:26,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:26,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1028199705, now seen corresponding path program 17 times [2018-09-23 21:22:26,869 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:26,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:26,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:26,870 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:22:26,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:36,205 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 21:22:36,205 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:22:36,205 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2018-09-23 21:22:36,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-09-23 21:22:36,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-09-23 21:22:36,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-09-23 21:22:36,211 INFO L87 Difference]: Start difference. First operand 124 states and 134 transitions. Second operand 103 states. [2018-09-23 21:22:38,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:38,856 INFO L93 Difference]: Finished difference Result 5119 states and 5579 transitions. [2018-09-23 21:22:38,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-09-23 21:22:38,857 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 123 [2018-09-23 21:22:38,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:38,857 INFO L225 Difference]: With dead ends: 5119 [2018-09-23 21:22:38,857 INFO L226 Difference]: Without dead ends: 0 [2018-09-23 21:22:38,868 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-09-23 21:22:38,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-23 21:22:38,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-23 21:22:38,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-23 21:22:38,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-23 21:22:38,869 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2018-09-23 21:22:38,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:38,869 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-23 21:22:38,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-09-23 21:22:38,870 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-23 21:22:38,870 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-23 21:22:38,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-23 21:22:44,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:44,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:44,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:44,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,098 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,314 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,326 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,497 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,518 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,799 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:45,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,686 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:46,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,247 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,253 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,326 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,492 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,540 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,666 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,852 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:47,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:48,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:48,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:48,223 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:48,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:48,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:48,696 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:48,826 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:48,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,301 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,746 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,811 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:49,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:50,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:50,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:50,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:50,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:50,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:50,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:50,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:51,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:51,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:51,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:51,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:51,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:51,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:51,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:52,093 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:52,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:52,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:52,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:52,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:52,501 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:52,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:52,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:52,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:53,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:53,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:53,806 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:53,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:54,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:54,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:54,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:54,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:54,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:55,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:55,080 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:55,208 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:55,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:55,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:55,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:55,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:56,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:56,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:56,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:56,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:56,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:56,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:56,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:57,006 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:57,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:57,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:57,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:58,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:58,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:58,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:58,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:58,818 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:58,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:59,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:59,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:59,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:00,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:00,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:00,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:00,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:00,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:00,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:00,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:01,152 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:01,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:01,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:01,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:01,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:02,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:03,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:03,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:03,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:03,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:03,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:04,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:05,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:06,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:06,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:06,388 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:06,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:07,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:07,232 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:08,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:08,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:10,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:10,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:10,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:11,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:12,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:13,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:13,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:13,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:13,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:13,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:13,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:14,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:14,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:14,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:15,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:16,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:17,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:17,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:18,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:18,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:18,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:19,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:19,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:20,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:20,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:21,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:23,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:24,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:24,549 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:24,976 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:24,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:26,103 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:27,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:27,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:28,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:34,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:34,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:36,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:36,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:37,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:39,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:43,962 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:44,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:46,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:49,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:49,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:23:51,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:24:06,742 WARN L178 SmtUtils]: Spent 1.46 m on a formula simplification. DAG size of input: 5112 DAG size of output: 2150 [2018-09-23 21:24:07,684 WARN L178 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 673 DAG size of output: 664 [2018-09-23 21:26:08,275 WARN L178 SmtUtils]: Spent 2.01 m on a formula simplification. DAG size of input: 2150 DAG size of output: 362 [2018-09-23 21:26:16,644 WARN L178 SmtUtils]: Spent 8.36 s on a formula simplification. DAG size of input: 664 DAG size of output: 59 [2018-09-23 21:26:16,651 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 71) no Hoare annotation was computed. [2018-09-23 21:26:16,653 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 21:26:16,654 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 71) no Hoare annotation was computed. [2018-09-23 21:26:16,654 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 71) no Hoare annotation was computed. [2018-09-23 21:26:16,654 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 51) no Hoare annotation was computed. [2018-09-23 21:26:16,654 INFO L422 ceAbstractionStarter]: At program point L45(lines 45 50) the Hoare annotation is: false [2018-09-23 21:26:16,654 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 21:26:16,692 INFO L202 PluginConnector]: Adding new model nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 09:26:16 BoogieIcfgContainer [2018-09-23 21:26:16,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-23 21:26:16,697 INFO L168 Benchmark]: Toolchain (without parser) took 243450.92 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.5 GB in the beginning and 627.4 MB in the end (delta: 830.9 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-09-23 21:26:16,698 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 21:26:16,699 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.94 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 21:26:16,702 INFO L168 Benchmark]: Boogie Preprocessor took 17.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 21:26:16,703 INFO L168 Benchmark]: RCFGBuilder took 366.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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 21:26:16,704 INFO L168 Benchmark]: TraceAbstraction took 243019.69 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 627.4 MB in the end (delta: 809.8 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-09-23 21:26:16,711 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 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.94 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 17.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 366.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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 243019.69 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 627.4 MB in the end (delta: 809.8 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, 242.9s OverallTime, 19 OverallIterations, 100 TraceHistogramMax, 6.5s AutomataDifference, 0.0s DeadEndRemovalTime, 217.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 254 SDtfs, 398 SDslu, 417 SDs, 0 SdLazy, 636 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 963 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 357 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1747 ImplicationChecksByTransitivity, 16.4s 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, 88.8s HoareSimplificationTime, 3 FomulaSimplificationsInter, 251704 FormulaSimplificationTreeSizeReductionInter, 128.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 15.9s 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_21-26-16-736.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_21-26-16-736.csv Received shutdown request...