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/20170304-DifficultPathPrograms/gr2006.c.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 21:21:38,353 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 21:21:38,356 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 21:21:38,372 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 21:21:38,372 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 21:21:38,373 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 21:21:38,375 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 21:21:38,376 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 21:21:38,378 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 21:21:38,379 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 21:21:38,380 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 21:21:38,405 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 [2018-09-26 21:21:38,426 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 21:21:38,426 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 21:21:38,427 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 21:21:38,427 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 21:21:38,428 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 21:21:38,428 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 21:21:38,428 INFO L133 SettingsManager]: * Use SBE=true [2018-09-26 21:21:38,428 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 21:21:38,429 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 21:21:38,429 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 21:21:38,429 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 21:21:38,429 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 21:21:38,429 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 21:21:38,430 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 21:21:38,430 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 21:21:38,430 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 21:21:38,430 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 21:21:38,430 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 21:21:38,431 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 21:21:38,431 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-26 21:21:38,431 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 21:21:38,431 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-26 21:21:38,431 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:21:38,432 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 21:21:38,432 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 21:21:38,432 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 21:21:38,432 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-26 21:21:38,432 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 21:21:38,433 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 21:21:38,433 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 21:21:38,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 21:21:38,510 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 21:21:38,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 21:21:38,515 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 21:21:38,515 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 21:21:38,516 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gr2006.c.i_4.bpl [2018-09-26 21:21:38,516 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gr2006.c.i_4.bpl' [2018-09-26 21:21:38,559 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 21:21:38,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 21:21:38,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 21:21:38,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 21:21:38,564 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 21:21:38,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:38" (1/1) ... [2018-09-26 21:21:38,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:38" (1/1) ... [2018-09-26 21:21:38,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 21:21:38,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 21:21:38,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 21:21:38,604 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 21:21:38,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:38" (1/1) ... [2018-09-26 21:21:38,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:38" (1/1) ... [2018-09-26 21:21:38,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:38" (1/1) ... [2018-09-26 21:21:38,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:38" (1/1) ... [2018-09-26 21:21:38,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:38" (1/1) ... [2018-09-26 21:21:38,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:38" (1/1) ... [2018-09-26 21:21:38,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:38" (1/1) ... [2018-09-26 21:21:38,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 21:21:38,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 21:21:38,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 21:21:38,625 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 21:21:38,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:38" (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 [2018-09-26 21:21:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 21:21:38,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 21:21:38,953 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 21:21:38,954 INFO L202 PluginConnector]: Adding new model gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:21:38 BoogieIcfgContainer [2018-09-26 21:21:38,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 21:21:38,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 21:21:38,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 21:21:38,959 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 21:21:38,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:38" (1/2) ... [2018-09-26 21:21:38,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0790f9 and model type gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:21:38, skipping insertion in model container [2018-09-26 21:21:38,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:21:38" (2/2) ... [2018-09-26 21:21:38,962 INFO L112 eAbstractionObserver]: Analyzing ICFG gr2006.c.i_4.bpl [2018-09-26 21:21:38,972 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-26 21:21:38,980 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 21:21:39,030 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 21:21:39,031 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 21:21:39,031 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 21:21:39,032 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-26 21:21:39,032 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 21:21:39,032 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 21:21:39,032 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 21:21:39,032 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 21:21:39,033 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 21:21:39,048 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-09-26 21:21:39,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 21:21:39,063 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:39,065 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-09-26 21:21:39,066 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:39,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:39,074 INFO L82 PathProgramCache]: Analyzing trace with hash 28694887, now seen corresponding path program 1 times [2018-09-26 21:21:39,077 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:39,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:39,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:39,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:39,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:21:39,237 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:21:39,237 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:21:39,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 21:21:39,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 21:21:39,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:21:39,257 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2018-09-26 21:21:39,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:39,434 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2018-09-26 21:21:39,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 21:21:39,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-09-26 21:21:39,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:39,448 INFO L225 Difference]: With dead ends: 14 [2018-09-26 21:21:39,449 INFO L226 Difference]: Without dead ends: 10 [2018-09-26 21:21:39,455 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:21:39,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-09-26 21:21:39,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-09-26 21:21:39,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-09-26 21:21:39,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2018-09-26 21:21:39,491 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 5 [2018-09-26 21:21:39,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:39,491 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-09-26 21:21:39,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 21:21:39,492 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2018-09-26 21:21:39,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 21:21:39,492 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:39,492 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-09-26 21:21:39,493 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:39,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:39,493 INFO L82 PathProgramCache]: Analyzing trace with hash 28696809, now seen corresponding path program 1 times [2018-09-26 21:21:39,493 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:39,494 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:39,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:39,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:39,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:39,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:21:39,545 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:21:39,546 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:21:39,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:21:39,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:21:39,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:21:39,548 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2018-09-26 21:21:39,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:39,593 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2018-09-26 21:21:39,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:21:39,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2018-09-26 21:21:39,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:39,595 INFO L225 Difference]: With dead ends: 22 [2018-09-26 21:21:39,595 INFO L226 Difference]: Without dead ends: 13 [2018-09-26 21:21:39,596 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 [2018-09-26 21:21:39,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-09-26 21:21:39,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-09-26 21:21:39,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-09-26 21:21:39,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2018-09-26 21:21:39,601 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2018-09-26 21:21:39,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:39,601 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-09-26 21:21:39,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:21:39,601 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-09-26 21:21:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 21:21:39,602 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:39,602 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2018-09-26 21:21:39,602 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:39,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:39,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1872158041, now seen corresponding path program 1 times [2018-09-26 21:21:39,603 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:39,603 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:39,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:39,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:39,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:39,666 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-26 21:21:39,666 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:39,667 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 [2018-09-26 21:21:39,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:39,712 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-26 21:21:39,755 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:39,755 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-09-26 21:21:39,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 21:21:39,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 21:21:39,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:21:39,756 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2018-09-26 21:21:39,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:39,847 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2018-09-26 21:21:39,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 21:21:39,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-09-26 21:21:39,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:39,849 INFO L225 Difference]: With dead ends: 25 [2018-09-26 21:21:39,849 INFO L226 Difference]: Without dead ends: 16 [2018-09-26 21:21:39,849 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:21:39,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-26 21:21:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-09-26 21:21:39,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-26 21:21:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-09-26 21:21:39,855 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2018-09-26 21:21:39,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:39,856 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-09-26 21:21:39,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 21:21:39,856 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-09-26 21:21:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 21:21:39,857 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:39,857 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1] [2018-09-26 21:21:39,858 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:39,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:39,858 INFO L82 PathProgramCache]: Analyzing trace with hash 306486099, now seen corresponding path program 2 times [2018-09-26 21:21:39,858 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:39,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:39,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:39,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:39,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:39,966 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-26 21:21:39,967 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:39,967 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 [2018-09-26 21:21:39,976 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-26 21:21:39,994 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-26 21:21:39,994 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:39,998 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:40,007 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-26 21:21:40,038 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:40,038 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-09-26 21:21:40,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 21:21:40,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 21:21:40,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-26 21:21:40,039 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 5 states. [2018-09-26 21:21:40,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:40,148 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2018-09-26 21:21:40,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 21:21:40,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-09-26 21:21:40,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:40,150 INFO L225 Difference]: With dead ends: 28 [2018-09-26 21:21:40,150 INFO L226 Difference]: Without dead ends: 19 [2018-09-26 21:21:40,150 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-26 21:21:40,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-26 21:21:40,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2018-09-26 21:21:40,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-26 21:21:40,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-09-26 21:21:40,161 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 14 [2018-09-26 21:21:40,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:40,162 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-09-26 21:21:40,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 21:21:40,162 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-09-26 21:21:40,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-26 21:21:40,163 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:40,163 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 1, 1, 1] [2018-09-26 21:21:40,163 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:40,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:40,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1251716313, now seen corresponding path program 3 times [2018-09-26 21:21:40,164 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:40,164 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:40,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:40,165 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:40,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-26 21:21:40,412 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:40,413 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 [2018-09-26 21:21:40,426 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-26 21:21:40,452 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-09-26 21:21:40,452 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:40,455 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:40,562 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-26 21:21:40,585 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:40,585 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2018-09-26 21:21:40,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-26 21:21:40,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-26 21:21:40,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-26 21:21:40,587 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 10 states. [2018-09-26 21:21:40,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:40,881 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2018-09-26 21:21:40,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-26 21:21:40,881 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2018-09-26 21:21:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:40,883 INFO L225 Difference]: With dead ends: 45 [2018-09-26 21:21:40,884 INFO L226 Difference]: Without dead ends: 36 [2018-09-26 21:21:40,885 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-09-26 21:21:40,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-09-26 21:21:40,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2018-09-26 21:21:40,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-09-26 21:21:40,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2018-09-26 21:21:40,893 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 17 [2018-09-26 21:21:40,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:40,894 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2018-09-26 21:21:40,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-26 21:21:40,894 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-09-26 21:21:40,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-26 21:21:40,895 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:40,895 INFO L375 BasicCegarLoop]: trace histogram [8, 7, 4, 4, 1, 1, 1] [2018-09-26 21:21:40,896 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:40,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:40,896 INFO L82 PathProgramCache]: Analyzing trace with hash 78979859, now seen corresponding path program 4 times [2018-09-26 21:21:40,896 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:40,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:40,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:40,898 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:40,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:40,987 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 46 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-26 21:21:40,987 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:40,987 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 [2018-09-26 21:21:40,995 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-26 21:21:41,011 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-26 21:21:41,011 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:41,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:41,020 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 46 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-26 21:21:41,044 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:41,044 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-09-26 21:21:41,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 21:21:41,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 21:21:41,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-09-26 21:21:41,045 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 7 states. [2018-09-26 21:21:41,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:41,264 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2018-09-26 21:21:41,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 21:21:41,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-09-26 21:21:41,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:41,266 INFO L225 Difference]: With dead ends: 46 [2018-09-26 21:21:41,266 INFO L226 Difference]: Without dead ends: 31 [2018-09-26 21:21:41,267 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-09-26 21:21:41,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-09-26 21:21:41,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-09-26 21:21:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-09-26 21:21:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2018-09-26 21:21:41,275 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 26 [2018-09-26 21:21:41,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:41,276 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2018-09-26 21:21:41,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 21:21:41,276 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-09-26 21:21:41,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-26 21:21:41,277 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:41,277 INFO L375 BasicCegarLoop]: trace histogram [9, 8, 5, 4, 1, 1, 1] [2018-09-26 21:21:41,277 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:41,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:41,278 INFO L82 PathProgramCache]: Analyzing trace with hash 528202983, now seen corresponding path program 5 times [2018-09-26 21:21:41,278 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:41,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:41,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:41,279 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:41,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:41,517 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 56 proven. 40 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-26 21:21:41,517 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:41,517 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 [2018-09-26 21:21:41,532 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-26 21:21:41,560 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2018-09-26 21:21:41,561 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:41,564 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:41,573 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 56 proven. 40 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-26 21:21:41,600 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:41,601 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-09-26 21:21:41,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 21:21:41,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 21:21:41,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-09-26 21:21:41,602 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 8 states. [2018-09-26 21:21:41,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:41,686 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-09-26 21:21:41,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-26 21:21:41,686 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2018-09-26 21:21:41,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:41,687 INFO L225 Difference]: With dead ends: 49 [2018-09-26 21:21:41,687 INFO L226 Difference]: Without dead ends: 34 [2018-09-26 21:21:41,688 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-09-26 21:21:41,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-09-26 21:21:41,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-09-26 21:21:41,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-09-26 21:21:41,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-09-26 21:21:41,697 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 29 [2018-09-26 21:21:41,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:41,698 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-09-26 21:21:41,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 21:21:41,698 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-09-26 21:21:41,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-26 21:21:41,699 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:41,699 INFO L375 BasicCegarLoop]: trace histogram [10, 9, 6, 4, 1, 1, 1] [2018-09-26 21:21:41,700 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:41,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:41,700 INFO L82 PathProgramCache]: Analyzing trace with hash 216195731, now seen corresponding path program 6 times [2018-09-26 21:21:41,700 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:41,700 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:41,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:41,701 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:41,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:41,814 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 66 proven. 57 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-26 21:21:41,814 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:41,815 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 [2018-09-26 21:21:41,823 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-26 21:21:41,852 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2018-09-26 21:21:41,852 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:41,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:41,960 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 89 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-26 21:21:41,989 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:41,989 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2018-09-26 21:21:41,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-26 21:21:41,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-26 21:21:41,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-09-26 21:21:41,991 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 14 states. [2018-09-26 21:21:42,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:42,475 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2018-09-26 21:21:42,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-26 21:21:42,477 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 32 [2018-09-26 21:21:42,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:42,478 INFO L225 Difference]: With dead ends: 65 [2018-09-26 21:21:42,478 INFO L226 Difference]: Without dead ends: 50 [2018-09-26 21:21:42,479 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2018-09-26 21:21:42,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-09-26 21:21:42,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 39. [2018-09-26 21:21:42,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-09-26 21:21:42,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-09-26 21:21:42,490 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 32 [2018-09-26 21:21:42,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:42,491 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-09-26 21:21:42,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-26 21:21:42,491 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-09-26 21:21:42,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-26 21:21:42,492 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:42,492 INFO L375 BasicCegarLoop]: trace histogram [12, 11, 7, 5, 1, 1, 1] [2018-09-26 21:21:42,492 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:42,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:42,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1817826965, now seen corresponding path program 7 times [2018-09-26 21:21:42,493 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:42,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:42,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:42,494 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:42,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 99 proven. 77 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-26 21:21:42,659 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:42,659 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 [2018-09-26 21:21:42,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:42,703 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:42,714 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 99 proven. 77 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-26 21:21:42,742 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:42,742 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-09-26 21:21:42,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-26 21:21:42,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-26 21:21:42,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-09-26 21:21:42,743 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 10 states. [2018-09-26 21:21:42,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:42,875 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2018-09-26 21:21:42,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-26 21:21:42,875 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2018-09-26 21:21:42,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:42,876 INFO L225 Difference]: With dead ends: 61 [2018-09-26 21:21:42,876 INFO L226 Difference]: Without dead ends: 43 [2018-09-26 21:21:42,877 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-09-26 21:21:42,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-09-26 21:21:42,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2018-09-26 21:21:42,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-09-26 21:21:42,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2018-09-26 21:21:42,887 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 38 [2018-09-26 21:21:42,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:42,887 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2018-09-26 21:21:42,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-26 21:21:42,887 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2018-09-26 21:21:42,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-26 21:21:42,888 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:42,888 INFO L375 BasicCegarLoop]: trace histogram [13, 12, 8, 5, 1, 1, 1] [2018-09-26 21:21:42,889 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:42,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:42,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1636061801, now seen corresponding path program 8 times [2018-09-26 21:21:42,889 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:42,890 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:42,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:42,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:42,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 112 proven. 100 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-26 21:21:43,046 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:43,046 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 [2018-09-26 21:21:43,057 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-26 21:21:43,075 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-26 21:21:43,076 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:43,079 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:43,090 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 112 proven. 100 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-26 21:21:43,112 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:43,113 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-09-26 21:21:43,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-26 21:21:43,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-26 21:21:43,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-09-26 21:21:43,114 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 11 states. [2018-09-26 21:21:43,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:43,353 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2018-09-26 21:21:43,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-26 21:21:43,354 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2018-09-26 21:21:43,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:43,355 INFO L225 Difference]: With dead ends: 64 [2018-09-26 21:21:43,355 INFO L226 Difference]: Without dead ends: 46 [2018-09-26 21:21:43,356 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-09-26 21:21:43,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-09-26 21:21:43,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2018-09-26 21:21:43,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-09-26 21:21:43,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2018-09-26 21:21:43,372 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 41 [2018-09-26 21:21:43,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:43,372 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2018-09-26 21:21:43,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-26 21:21:43,375 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2018-09-26 21:21:43,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-26 21:21:43,376 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:43,376 INFO L375 BasicCegarLoop]: trace histogram [14, 13, 9, 5, 1, 1, 1] [2018-09-26 21:21:43,376 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:43,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:43,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1671145963, now seen corresponding path program 9 times [2018-09-26 21:21:43,377 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:43,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:43,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:43,378 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:43,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:43,631 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 125 proven. 126 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-26 21:21:43,631 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:43,631 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 [2018-09-26 21:21:43,640 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-26 21:21:43,849 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2018-09-26 21:21:43,850 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:43,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 203 proven. 57 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-26 21:21:44,225 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:44,225 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2018-09-26 21:21:44,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-26 21:21:44,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-26 21:21:44,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2018-09-26 21:21:44,227 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 22 states. [2018-09-26 21:21:45,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:45,073 INFO L93 Difference]: Finished difference Result 147 states and 188 transitions. [2018-09-26 21:21:45,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-09-26 21:21:45,073 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 44 [2018-09-26 21:21:45,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:45,074 INFO L225 Difference]: With dead ends: 147 [2018-09-26 21:21:45,075 INFO L226 Difference]: Without dead ends: 129 [2018-09-26 21:21:45,076 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=405, Invalid=1235, Unknown=0, NotChecked=0, Total=1640 [2018-09-26 21:21:45,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-09-26 21:21:45,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 63. [2018-09-26 21:21:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-26 21:21:45,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2018-09-26 21:21:45,101 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 44 [2018-09-26 21:21:45,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:45,102 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2018-09-26 21:21:45,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-09-26 21:21:45,102 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2018-09-26 21:21:45,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-26 21:21:45,103 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:45,103 INFO L375 BasicCegarLoop]: trace histogram [20, 19, 10, 10, 1, 1, 1] [2018-09-26 21:21:45,104 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:45,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:45,104 INFO L82 PathProgramCache]: Analyzing trace with hash -439985581, now seen corresponding path program 10 times [2018-09-26 21:21:45,104 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:45,104 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:45,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:45,106 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:45,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 298 proven. 155 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:45,270 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:45,270 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 [2018-09-26 21:21:45,303 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-26 21:21:45,338 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-26 21:21:45,339 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:45,344 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 298 proven. 155 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:45,376 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:45,377 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2018-09-26 21:21:45,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-26 21:21:45,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-26 21:21:45,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-09-26 21:21:45,378 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand 13 states. [2018-09-26 21:21:45,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:45,565 INFO L93 Difference]: Finished difference Result 100 states and 121 transitions. [2018-09-26 21:21:45,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-26 21:21:45,566 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 62 [2018-09-26 21:21:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:45,567 INFO L225 Difference]: With dead ends: 100 [2018-09-26 21:21:45,567 INFO L226 Difference]: Without dead ends: 67 [2018-09-26 21:21:45,568 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-09-26 21:21:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-09-26 21:21:45,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2018-09-26 21:21:45,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-09-26 21:21:45,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2018-09-26 21:21:45,596 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 62 [2018-09-26 21:21:45,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:45,597 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2018-09-26 21:21:45,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-26 21:21:45,597 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2018-09-26 21:21:45,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-09-26 21:21:45,599 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:45,600 INFO L375 BasicCegarLoop]: trace histogram [21, 20, 11, 10, 1, 1, 1] [2018-09-26 21:21:45,600 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:45,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:45,600 INFO L82 PathProgramCache]: Analyzing trace with hash 703568423, now seen corresponding path program 11 times [2018-09-26 21:21:45,601 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:45,601 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:45,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:45,602 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:45,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:47,082 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 326 proven. 187 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:47,082 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:47,082 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2018-09-26 21:21:47,091 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-26 21:21:47,180 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2018-09-26 21:21:47,181 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:47,184 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 326 proven. 187 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:47,222 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:47,223 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2018-09-26 21:21:47,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-26 21:21:47,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-26 21:21:47,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-09-26 21:21:47,224 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand 14 states. [2018-09-26 21:21:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:47,539 INFO L93 Difference]: Finished difference Result 103 states and 124 transitions. [2018-09-26 21:21:47,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-26 21:21:47,540 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2018-09-26 21:21:47,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:47,541 INFO L225 Difference]: With dead ends: 103 [2018-09-26 21:21:47,541 INFO L226 Difference]: Without dead ends: 70 [2018-09-26 21:21:47,541 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-09-26 21:21:47,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-09-26 21:21:47,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2018-09-26 21:21:47,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-09-26 21:21:47,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2018-09-26 21:21:47,561 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 65 [2018-09-26 21:21:47,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:47,562 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2018-09-26 21:21:47,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-26 21:21:47,562 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2018-09-26 21:21:47,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-09-26 21:21:47,563 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:47,563 INFO L375 BasicCegarLoop]: trace histogram [22, 21, 12, 10, 1, 1, 1] [2018-09-26 21:21:47,563 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:47,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:47,564 INFO L82 PathProgramCache]: Analyzing trace with hash 640309715, now seen corresponding path program 12 times [2018-09-26 21:21:47,564 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:47,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:47,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:47,565 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:47,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:47,843 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 354 proven. 222 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:47,844 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:47,844 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 [2018-09-26 21:21:47,856 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-26 21:21:47,922 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2018-09-26 21:21:47,923 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:47,926 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:47,938 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 354 proven. 222 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:47,967 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:47,967 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2018-09-26 21:21:47,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-26 21:21:47,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-26 21:21:47,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-09-26 21:21:47,968 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand 15 states. [2018-09-26 21:21:48,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:48,161 INFO L93 Difference]: Finished difference Result 106 states and 127 transitions. [2018-09-26 21:21:48,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-26 21:21:48,162 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 68 [2018-09-26 21:21:48,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:48,163 INFO L225 Difference]: With dead ends: 106 [2018-09-26 21:21:48,163 INFO L226 Difference]: Without dead ends: 73 [2018-09-26 21:21:48,164 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-09-26 21:21:48,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-26 21:21:48,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2018-09-26 21:21:48,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-09-26 21:21:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2018-09-26 21:21:48,186 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 68 [2018-09-26 21:21:48,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:48,186 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2018-09-26 21:21:48,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-26 21:21:48,187 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2018-09-26 21:21:48,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-26 21:21:48,188 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:48,188 INFO L375 BasicCegarLoop]: trace histogram [23, 22, 13, 10, 1, 1, 1] [2018-09-26 21:21:48,188 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:48,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:48,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1590782631, now seen corresponding path program 13 times [2018-09-26 21:21:48,189 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:48,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:48,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:48,190 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:48,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:48,362 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 382 proven. 260 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:48,363 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:48,363 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 [2018-09-26 21:21:48,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:48,409 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:48,423 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 382 proven. 260 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:48,454 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:48,455 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2018-09-26 21:21:48,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-26 21:21:48,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-26 21:21:48,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-09-26 21:21:48,456 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 16 states. [2018-09-26 21:21:48,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:48,616 INFO L93 Difference]: Finished difference Result 109 states and 130 transitions. [2018-09-26 21:21:48,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-26 21:21:48,617 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2018-09-26 21:21:48,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:48,618 INFO L225 Difference]: With dead ends: 109 [2018-09-26 21:21:48,618 INFO L226 Difference]: Without dead ends: 76 [2018-09-26 21:21:48,618 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-09-26 21:21:48,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-26 21:21:48,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2018-09-26 21:21:48,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-09-26 21:21:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2018-09-26 21:21:48,638 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 71 [2018-09-26 21:21:48,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:48,638 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2018-09-26 21:21:48,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-26 21:21:48,639 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2018-09-26 21:21:48,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-09-26 21:21:48,639 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:48,640 INFO L375 BasicCegarLoop]: trace histogram [24, 23, 14, 10, 1, 1, 1] [2018-09-26 21:21:48,640 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:48,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:48,640 INFO L82 PathProgramCache]: Analyzing trace with hash 410040659, now seen corresponding path program 14 times [2018-09-26 21:21:48,640 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:48,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:48,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:48,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:48,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:49,192 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 410 proven. 301 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:49,193 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:49,193 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 [2018-09-26 21:21:49,200 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-26 21:21:49,227 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-26 21:21:49,227 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:49,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:49,243 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 410 proven. 301 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:49,273 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:49,273 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2018-09-26 21:21:49,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-26 21:21:49,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-26 21:21:49,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-09-26 21:21:49,274 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 17 states. [2018-09-26 21:21:49,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:49,372 INFO L93 Difference]: Finished difference Result 112 states and 133 transitions. [2018-09-26 21:21:49,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-26 21:21:49,372 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 74 [2018-09-26 21:21:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:49,373 INFO L225 Difference]: With dead ends: 112 [2018-09-26 21:21:49,374 INFO L226 Difference]: Without dead ends: 79 [2018-09-26 21:21:49,374 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-09-26 21:21:49,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-09-26 21:21:49,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2018-09-26 21:21:49,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-09-26 21:21:49,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2018-09-26 21:21:49,392 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 74 [2018-09-26 21:21:49,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:49,392 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2018-09-26 21:21:49,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-26 21:21:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2018-09-26 21:21:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-09-26 21:21:49,393 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:49,393 INFO L375 BasicCegarLoop]: trace histogram [25, 24, 15, 10, 1, 1, 1] [2018-09-26 21:21:49,393 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:49,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:49,394 INFO L82 PathProgramCache]: Analyzing trace with hash 708107047, now seen corresponding path program 15 times [2018-09-26 21:21:49,394 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:49,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:49,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:49,394 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:49,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:49,696 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 438 proven. 345 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:49,696 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:49,696 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 [2018-09-26 21:21:49,703 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-26 21:21:49,750 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 25 check-sat command(s) [2018-09-26 21:21:49,750 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:49,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:49,767 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 438 proven. 345 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:49,799 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:49,799 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2018-09-26 21:21:49,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-26 21:21:49,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-26 21:21:49,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-09-26 21:21:49,800 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 18 states. [2018-09-26 21:21:49,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:49,917 INFO L93 Difference]: Finished difference Result 115 states and 136 transitions. [2018-09-26 21:21:49,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-26 21:21:49,917 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 77 [2018-09-26 21:21:49,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:49,918 INFO L225 Difference]: With dead ends: 115 [2018-09-26 21:21:49,918 INFO L226 Difference]: Without dead ends: 82 [2018-09-26 21:21:49,919 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-09-26 21:21:49,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-09-26 21:21:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2018-09-26 21:21:49,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-26 21:21:49,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2018-09-26 21:21:49,933 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 77 [2018-09-26 21:21:49,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:49,934 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2018-09-26 21:21:49,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-26 21:21:49,934 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2018-09-26 21:21:49,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-26 21:21:49,935 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:49,935 INFO L375 BasicCegarLoop]: trace histogram [26, 25, 16, 10, 1, 1, 1] [2018-09-26 21:21:49,935 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:49,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:49,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1588496173, now seen corresponding path program 16 times [2018-09-26 21:21:49,936 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:49,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:49,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:49,937 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:49,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:50,152 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 466 proven. 392 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:50,152 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:50,153 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 [2018-09-26 21:21:50,160 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-26 21:21:50,186 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-26 21:21:50,187 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:50,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 466 proven. 392 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:50,225 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:50,225 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2018-09-26 21:21:50,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-26 21:21:50,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-26 21:21:50,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-09-26 21:21:50,226 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand 19 states. [2018-09-26 21:21:50,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:50,561 INFO L93 Difference]: Finished difference Result 118 states and 139 transitions. [2018-09-26 21:21:50,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-26 21:21:50,564 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 80 [2018-09-26 21:21:50,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:50,565 INFO L225 Difference]: With dead ends: 118 [2018-09-26 21:21:50,565 INFO L226 Difference]: Without dead ends: 85 [2018-09-26 21:21:50,565 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-09-26 21:21:50,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-26 21:21:50,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2018-09-26 21:21:50,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-09-26 21:21:50,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2018-09-26 21:21:50,586 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 80 [2018-09-26 21:21:50,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:50,586 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2018-09-26 21:21:50,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-26 21:21:50,586 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2018-09-26 21:21:50,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-09-26 21:21:50,587 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:50,587 INFO L375 BasicCegarLoop]: trace histogram [27, 26, 17, 10, 1, 1, 1] [2018-09-26 21:21:50,587 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:50,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:50,588 INFO L82 PathProgramCache]: Analyzing trace with hash -865997913, now seen corresponding path program 17 times [2018-09-26 21:21:50,588 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:50,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:50,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:50,589 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:50,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 494 proven. 442 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:50,905 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:50,905 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:21:50,914 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-26 21:21:50,965 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 27 check-sat command(s) [2018-09-26 21:21:50,966 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:50,968 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:50,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 494 proven. 442 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:51,009 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:51,010 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2018-09-26 21:21:51,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-26 21:21:51,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-26 21:21:51,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-09-26 21:21:51,011 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand 20 states. [2018-09-26 21:21:51,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:51,133 INFO L93 Difference]: Finished difference Result 121 states and 142 transitions. [2018-09-26 21:21:51,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-26 21:21:51,133 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 83 [2018-09-26 21:21:51,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:51,134 INFO L225 Difference]: With dead ends: 121 [2018-09-26 21:21:51,134 INFO L226 Difference]: Without dead ends: 88 [2018-09-26 21:21:51,135 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-09-26 21:21:51,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-09-26 21:21:51,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2018-09-26 21:21:51,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-26 21:21:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2018-09-26 21:21:51,155 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 83 [2018-09-26 21:21:51,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:51,156 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2018-09-26 21:21:51,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-26 21:21:51,156 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2018-09-26 21:21:51,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-09-26 21:21:51,157 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:51,157 INFO L375 BasicCegarLoop]: trace histogram [28, 27, 18, 10, 1, 1, 1] [2018-09-26 21:21:51,157 INFO L423 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:51,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:51,157 INFO L82 PathProgramCache]: Analyzing trace with hash 998545491, now seen corresponding path program 18 times [2018-09-26 21:21:51,157 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:51,158 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:51,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:51,158 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:51,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:51,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 522 proven. 495 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-26 21:21:51,541 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:51,541 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:21:51,549 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-26 21:21:51,598 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2018-09-26 21:21:51,598 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:51,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 814 proven. 262 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-09-26 21:21:51,905 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:51,905 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 35 [2018-09-26 21:21:51,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-09-26 21:21:51,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-09-26 21:21:51,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=861, Unknown=0, NotChecked=0, Total=1190 [2018-09-26 21:21:51,906 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand 35 states. [2018-09-26 21:21:52,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:52,714 INFO L93 Difference]: Finished difference Result 248 states and 313 transitions. [2018-09-26 21:21:52,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-09-26 21:21:52,714 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 86 [2018-09-26 21:21:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:52,715 INFO L225 Difference]: With dead ends: 248 [2018-09-26 21:21:52,716 INFO L226 Difference]: Without dead ends: 215 [2018-09-26 21:21:52,717 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1077, Invalid=3345, Unknown=0, NotChecked=0, Total=4422 [2018-09-26 21:21:52,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-09-26 21:21:52,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 102. [2018-09-26 21:21:52,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-09-26 21:21:52,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2018-09-26 21:21:52,745 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 86 [2018-09-26 21:21:52,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:52,745 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2018-09-26 21:21:52,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-09-26 21:21:52,746 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2018-09-26 21:21:52,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-09-26 21:21:52,746 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:52,747 INFO L375 BasicCegarLoop]: trace histogram [33, 32, 19, 14, 1, 1, 1] [2018-09-26 21:21:52,747 INFO L423 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:52,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:52,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1184031065, now seen corresponding path program 19 times [2018-09-26 21:21:52,747 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:52,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:52,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:52,748 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:52,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 786 proven. 551 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-09-26 21:21:53,173 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:53,173 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:21:53,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:53,216 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 786 proven. 551 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-09-26 21:21:53,256 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:53,256 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2018-09-26 21:21:53,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-26 21:21:53,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-26 21:21:53,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-09-26 21:21:53,257 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 22 states. [2018-09-26 21:21:53,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:53,390 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2018-09-26 21:21:53,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-26 21:21:53,390 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 101 [2018-09-26 21:21:53,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:53,391 INFO L225 Difference]: With dead ends: 151 [2018-09-26 21:21:53,391 INFO L226 Difference]: Without dead ends: 106 [2018-09-26 21:21:53,392 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-09-26 21:21:53,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-09-26 21:21:53,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2018-09-26 21:21:53,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-09-26 21:21:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2018-09-26 21:21:53,422 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 101 [2018-09-26 21:21:53,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:53,423 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2018-09-26 21:21:53,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-09-26 21:21:53,423 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2018-09-26 21:21:53,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-09-26 21:21:53,424 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:53,424 INFO L375 BasicCegarLoop]: trace histogram [34, 33, 20, 14, 1, 1, 1] [2018-09-26 21:21:53,424 INFO L423 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:53,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:53,424 INFO L82 PathProgramCache]: Analyzing trace with hash 204896339, now seen corresponding path program 20 times [2018-09-26 21:21:53,424 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:53,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:53,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:53,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:53,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 826 proven. 610 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-09-26 21:21:54,679 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:54,679 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:21:54,689 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-26 21:21:54,725 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-26 21:21:54,725 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:54,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:54,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 826 proven. 610 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-09-26 21:21:54,772 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:54,772 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2018-09-26 21:21:54,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-09-26 21:21:54,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-09-26 21:21:54,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-09-26 21:21:54,773 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 23 states. [2018-09-26 21:21:54,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:54,905 INFO L93 Difference]: Finished difference Result 154 states and 183 transitions. [2018-09-26 21:21:54,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-26 21:21:54,908 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 104 [2018-09-26 21:21:54,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:54,909 INFO L225 Difference]: With dead ends: 154 [2018-09-26 21:21:54,909 INFO L226 Difference]: Without dead ends: 109 [2018-09-26 21:21:54,910 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-09-26 21:21:54,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-09-26 21:21:54,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2018-09-26 21:21:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-09-26 21:21:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2018-09-26 21:21:54,939 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 104 [2018-09-26 21:21:54,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:54,939 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2018-09-26 21:21:54,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-09-26 21:21:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2018-09-26 21:21:54,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-09-26 21:21:54,939 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:54,939 INFO L375 BasicCegarLoop]: trace histogram [35, 34, 21, 14, 1, 1, 1] [2018-09-26 21:21:54,940 INFO L423 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:54,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:54,940 INFO L82 PathProgramCache]: Analyzing trace with hash 26259239, now seen corresponding path program 21 times [2018-09-26 21:21:54,940 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:54,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:54,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:54,941 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:54,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:56,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1785 backedges. 866 proven. 672 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2018-09-26 21:21:56,513 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:56,513 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:21:56,520 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-26 21:21:56,584 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 35 check-sat command(s) [2018-09-26 21:21:56,585 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:56,588 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:57,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1785 backedges. 1211 proven. 534 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-09-26 21:21:57,583 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:57,583 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 45 [2018-09-26 21:21:57,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-09-26 21:21:57,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-09-26 21:21:57,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2018-09-26 21:21:57,585 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand 46 states. [2018-09-26 21:21:59,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:59,453 INFO L93 Difference]: Finished difference Result 501 states and 650 transitions. [2018-09-26 21:21:59,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-09-26 21:21:59,453 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 107 [2018-09-26 21:21:59,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:59,456 INFO L225 Difference]: With dead ends: 501 [2018-09-26 21:21:59,456 INFO L226 Difference]: Without dead ends: 456 [2018-09-26 21:21:59,458 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1744 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1689, Invalid=6143, Unknown=0, NotChecked=0, Total=7832 [2018-09-26 21:21:59,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2018-09-26 21:21:59,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 135. [2018-09-26 21:21:59,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-09-26 21:21:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 157 transitions. [2018-09-26 21:21:59,536 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 157 transitions. Word has length 107 [2018-09-26 21:21:59,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:59,536 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 157 transitions. [2018-09-26 21:21:59,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-09-26 21:21:59,536 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 157 transitions. [2018-09-26 21:21:59,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-26 21:21:59,537 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:59,537 INFO L375 BasicCegarLoop]: trace histogram [44, 43, 22, 22, 1, 1, 1] [2018-09-26 21:21:59,538 INFO L423 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:59,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:59,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1522473171, now seen corresponding path program 22 times [2018-09-26 21:21:59,538 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:59,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:59,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:59,539 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:21:59,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:22:00,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2838 backedges. 1450 proven. 737 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-09-26 21:22:00,400 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:22:00,400 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:22:00,408 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-26 21:22:00,453 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-26 21:22:00,453 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:22:00,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:22:01,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2838 backedges. 43 proven. 2795 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:22:01,048 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:22:01,048 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 45] total 45 [2018-09-26 21:22:01,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-09-26 21:22:01,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-09-26 21:22:01,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2018-09-26 21:22:01,050 INFO L87 Difference]: Start difference. First operand 135 states and 157 transitions. Second operand 46 states. [2018-09-26 21:22:01,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:22:01,341 INFO L93 Difference]: Finished difference Result 271 states and 337 transitions. [2018-09-26 21:22:01,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-09-26 21:22:01,341 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 134 [2018-09-26 21:22:01,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:22:01,343 INFO L225 Difference]: With dead ends: 271 [2018-09-26 21:22:01,343 INFO L226 Difference]: Without dead ends: 202 [2018-09-26 21:22:01,345 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2018-09-26 21:22:01,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-09-26 21:22:01,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 201. [2018-09-26 21:22:01,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-09-26 21:22:01,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 223 transitions. [2018-09-26 21:22:01,437 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 223 transitions. Word has length 134 [2018-09-26 21:22:01,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:22:01,438 INFO L480 AbstractCegarLoop]: Abstraction has 201 states and 223 transitions. [2018-09-26 21:22:01,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-09-26 21:22:01,438 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 223 transitions. [2018-09-26 21:22:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-09-26 21:22:01,439 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:22:01,439 INFO L375 BasicCegarLoop]: trace histogram [66, 65, 44, 22, 1, 1, 1] [2018-09-26 21:22:01,439 INFO L423 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:22:01,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:22:01,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1238420653, now seen corresponding path program 23 times [2018-09-26 21:22:01,439 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:22:01,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:22:01,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:01,440 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:22:01,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:22:02,619 INFO L134 CoverageAnalysis]: Checked inductivity of 6435 backedges. 2858 proven. 2926 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-09-26 21:22:02,619 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:22:02,619 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:22:02,627 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-26 21:22:02,781 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2018-09-26 21:22:02,782 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:22:02,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:22:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6435 backedges. 2858 proven. 2926 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-09-26 21:22:02,851 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:22:02,851 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2018-09-26 21:22:02,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-09-26 21:22:02,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-09-26 21:22:02,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2018-09-26 21:22:02,853 INFO L87 Difference]: Start difference. First operand 201 states and 223 transitions. Second operand 47 states. [2018-09-26 21:22:03,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:22:03,231 INFO L93 Difference]: Finished difference Result 274 states and 319 transitions. [2018-09-26 21:22:03,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-09-26 21:22:03,231 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 200 [2018-09-26 21:22:03,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:22:03,232 INFO L225 Difference]: With dead ends: 274 [2018-09-26 21:22:03,232 INFO L226 Difference]: Without dead ends: 205 [2018-09-26 21:22:03,234 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2018-09-26 21:22:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-09-26 21:22:03,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2018-09-26 21:22:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-09-26 21:22:03,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 226 transitions. [2018-09-26 21:22:03,322 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 226 transitions. Word has length 200 [2018-09-26 21:22:03,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:22:03,323 INFO L480 AbstractCegarLoop]: Abstraction has 204 states and 226 transitions. [2018-09-26 21:22:03,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-09-26 21:22:03,323 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 226 transitions. [2018-09-26 21:22:03,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-09-26 21:22:03,323 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:22:03,324 INFO L375 BasicCegarLoop]: trace histogram [67, 66, 45, 22, 1, 1, 1] [2018-09-26 21:22:03,324 INFO L423 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:22:03,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:22:03,324 INFO L82 PathProgramCache]: Analyzing trace with hash 473463335, now seen corresponding path program 24 times [2018-09-26 21:22:03,324 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:22:03,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:22:03,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:03,325 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:22:03,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:22:04,872 INFO L134 CoverageAnalysis]: Checked inductivity of 6633 backedges. 2922 proven. 3060 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-09-26 21:22:04,872 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:22:04,872 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:22:04,879 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-26 21:22:05,020 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2018-09-26 21:22:05,020 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:22:05,025 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:22:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 6633 backedges. 2922 proven. 3060 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-09-26 21:22:05,085 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:22:05,086 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2018-09-26 21:22:05,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-09-26 21:22:05,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-09-26 21:22:05,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2018-09-26 21:22:05,087 INFO L87 Difference]: Start difference. First operand 204 states and 226 transitions. Second operand 48 states. [2018-09-26 21:22:05,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:22:05,343 INFO L93 Difference]: Finished difference Result 277 states and 322 transitions. [2018-09-26 21:22:05,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-09-26 21:22:05,343 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 203 [2018-09-26 21:22:05,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:22:05,345 INFO L225 Difference]: With dead ends: 277 [2018-09-26 21:22:05,346 INFO L226 Difference]: Without dead ends: 208 [2018-09-26 21:22:05,347 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2018-09-26 21:22:05,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-09-26 21:22:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2018-09-26 21:22:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-09-26 21:22:05,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 229 transitions. [2018-09-26 21:22:05,434 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 229 transitions. Word has length 203 [2018-09-26 21:22:05,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:22:05,435 INFO L480 AbstractCegarLoop]: Abstraction has 207 states and 229 transitions. [2018-09-26 21:22:05,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-09-26 21:22:05,435 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 229 transitions. [2018-09-26 21:22:05,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-09-26 21:22:05,436 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:22:05,436 INFO L375 BasicCegarLoop]: trace histogram [68, 67, 46, 22, 1, 1, 1] [2018-09-26 21:22:05,436 INFO L423 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:22:05,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:22:05,436 INFO L82 PathProgramCache]: Analyzing trace with hash 767677139, now seen corresponding path program 25 times [2018-09-26 21:22:05,436 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:22:05,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:22:05,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:05,437 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:22:05,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:22:07,344 INFO L134 CoverageAnalysis]: Checked inductivity of 6834 backedges. 2986 proven. 3197 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-09-26 21:22:07,344 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:22:07,344 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:22:07,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:22:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:22:07,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:22:07,464 INFO L134 CoverageAnalysis]: Checked inductivity of 6834 backedges. 2986 proven. 3197 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-09-26 21:22:07,485 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:22:07,486 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2018-09-26 21:22:07,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-09-26 21:22:07,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-09-26 21:22:07,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2018-09-26 21:22:07,488 INFO L87 Difference]: Start difference. First operand 207 states and 229 transitions. Second operand 49 states. [2018-09-26 21:22:08,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:22:08,472 INFO L93 Difference]: Finished difference Result 280 states and 325 transitions. [2018-09-26 21:22:08,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-09-26 21:22:08,472 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 206 [2018-09-26 21:22:08,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:22:08,474 INFO L225 Difference]: With dead ends: 280 [2018-09-26 21:22:08,474 INFO L226 Difference]: Without dead ends: 211 [2018-09-26 21:22:08,475 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2018-09-26 21:22:08,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-09-26 21:22:08,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 210. [2018-09-26 21:22:08,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-09-26 21:22:08,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 232 transitions. [2018-09-26 21:22:08,571 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 232 transitions. Word has length 206 [2018-09-26 21:22:08,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:22:08,572 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 232 transitions. [2018-09-26 21:22:08,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-09-26 21:22:08,572 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 232 transitions. [2018-09-26 21:22:08,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-09-26 21:22:08,573 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:22:08,574 INFO L375 BasicCegarLoop]: trace histogram [69, 68, 47, 22, 1, 1, 1] [2018-09-26 21:22:08,574 INFO L423 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:22:08,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:22:08,574 INFO L82 PathProgramCache]: Analyzing trace with hash -337139033, now seen corresponding path program 26 times [2018-09-26 21:22:08,574 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:22:08,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:22:08,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:08,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:22:08,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:22:10,082 INFO L134 CoverageAnalysis]: Checked inductivity of 7038 backedges. 3050 proven. 3337 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-09-26 21:22:10,082 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:22:10,082 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:22:10,089 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-26 21:22:10,156 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-26 21:22:10,156 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:22:10,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:22:10,196 INFO L134 CoverageAnalysis]: Checked inductivity of 7038 backedges. 3050 proven. 3337 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-09-26 21:22:10,217 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:22:10,217 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2018-09-26 21:22:10,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-09-26 21:22:10,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-09-26 21:22:10,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2018-09-26 21:22:10,219 INFO L87 Difference]: Start difference. First operand 210 states and 232 transitions. Second operand 50 states. [2018-09-26 21:22:10,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:22:10,487 INFO L93 Difference]: Finished difference Result 283 states and 328 transitions. [2018-09-26 21:22:10,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-09-26 21:22:10,487 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 209 [2018-09-26 21:22:10,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:22:10,490 INFO L225 Difference]: With dead ends: 283 [2018-09-26 21:22:10,490 INFO L226 Difference]: Without dead ends: 214 [2018-09-26 21:22:10,492 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2018-09-26 21:22:10,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-09-26 21:22:10,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 213. [2018-09-26 21:22:10,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-09-26 21:22:10,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 235 transitions. [2018-09-26 21:22:10,619 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 235 transitions. Word has length 209 [2018-09-26 21:22:10,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:22:10,620 INFO L480 AbstractCegarLoop]: Abstraction has 213 states and 235 transitions. [2018-09-26 21:22:10,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-09-26 21:22:10,620 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 235 transitions. [2018-09-26 21:22:10,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-09-26 21:22:10,621 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:22:10,621 INFO L375 BasicCegarLoop]: trace histogram [70, 69, 48, 22, 1, 1, 1] [2018-09-26 21:22:10,622 INFO L423 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:22:10,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:22:10,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1581329837, now seen corresponding path program 27 times [2018-09-26 21:22:10,622 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:22:10,622 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:22:10,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:10,623 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:22:10,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:22:12,359 INFO L134 CoverageAnalysis]: Checked inductivity of 7245 backedges. 3114 proven. 3480 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-09-26 21:22:12,359 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:22:12,359 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:22:12,367 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-26 21:22:12,518 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 66 check-sat command(s) [2018-09-26 21:22:12,519 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:22:12,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:22:13,260 INFO L134 CoverageAnalysis]: Checked inductivity of 7245 backedges. 4841 proven. 1366 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2018-09-26 21:22:13,290 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:22:13,290 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 25] total 74 [2018-09-26 21:22:13,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-09-26 21:22:13,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-09-26 21:22:13,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1574, Invalid=3828, Unknown=0, NotChecked=0, Total=5402 [2018-09-26 21:22:13,293 INFO L87 Difference]: Start difference. First operand 213 states and 235 transitions. Second operand 74 states. [2018-09-26 21:22:15,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:22:15,677 INFO L93 Difference]: Finished difference Result 353 states and 421 transitions. [2018-09-26 21:22:15,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-09-26 21:22:15,677 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 212 [2018-09-26 21:22:15,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:22:15,679 INFO L225 Difference]: With dead ends: 353 [2018-09-26 21:22:15,679 INFO L226 Difference]: Without dead ends: 284 [2018-09-26 21:22:15,685 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4008 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=5358, Invalid=15522, Unknown=0, NotChecked=0, Total=20880 [2018-09-26 21:22:15,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-09-26 21:22:15,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 219. [2018-09-26 21:22:15,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-09-26 21:22:15,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 242 transitions. [2018-09-26 21:22:15,780 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 242 transitions. Word has length 212 [2018-09-26 21:22:15,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:22:15,780 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 242 transitions. [2018-09-26 21:22:15,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-09-26 21:22:15,781 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 242 transitions. [2018-09-26 21:22:15,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-09-26 21:22:15,782 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:22:15,782 INFO L375 BasicCegarLoop]: trace histogram [72, 71, 49, 23, 1, 1, 1] [2018-09-26 21:22:15,782 INFO L423 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:22:15,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:22:15,782 INFO L82 PathProgramCache]: Analyzing trace with hash -746499883, now seen corresponding path program 28 times [2018-09-26 21:22:15,782 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:22:15,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:22:15,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:15,783 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:22:15,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:22:16,954 INFO L134 CoverageAnalysis]: Checked inductivity of 7668 backedges. 3327 proven. 3626 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2018-09-26 21:22:16,954 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:22:16,955 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:22:16,972 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-26 21:22:17,049 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-26 21:22:17,049 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:22:17,054 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:22:17,103 INFO L134 CoverageAnalysis]: Checked inductivity of 7668 backedges. 3327 proven. 3626 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2018-09-26 21:22:17,124 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:22:17,124 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2018-09-26 21:22:17,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-09-26 21:22:17,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-09-26 21:22:17,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2018-09-26 21:22:17,125 INFO L87 Difference]: Start difference. First operand 219 states and 242 transitions. Second operand 52 states. [2018-09-26 21:22:17,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:22:17,486 INFO L93 Difference]: Finished difference Result 315 states and 362 transitions. [2018-09-26 21:22:17,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-09-26 21:22:17,486 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 218 [2018-09-26 21:22:17,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:22:17,489 INFO L225 Difference]: With dead ends: 315 [2018-09-26 21:22:17,489 INFO L226 Difference]: Without dead ends: 243 [2018-09-26 21:22:17,490 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2018-09-26 21:22:17,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-09-26 21:22:17,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 222. [2018-09-26 21:22:17,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-09-26 21:22:17,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 245 transitions. [2018-09-26 21:22:17,595 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 245 transitions. Word has length 218 [2018-09-26 21:22:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:22:17,596 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 245 transitions. [2018-09-26 21:22:17,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-09-26 21:22:17,596 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 245 transitions. [2018-09-26 21:22:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-09-26 21:22:17,597 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:22:17,597 INFO L375 BasicCegarLoop]: trace histogram [73, 72, 50, 23, 1, 1, 1] [2018-09-26 21:22:17,598 INFO L423 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:22:17,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:22:17,598 INFO L82 PathProgramCache]: Analyzing trace with hash 287181481, now seen corresponding path program 29 times [2018-09-26 21:22:17,598 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:22:17,598 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:22:17,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:17,599 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:22:17,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:22:18,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7884 backedges. 6320 proven. 1497 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-26 21:22:18,837 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:22:18,837 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:22:18,844 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-26 21:22:19,099 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 73 check-sat command(s) [2018-09-26 21:22:19,099 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:22:19,106 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:22:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 7884 backedges. 6320 proven. 1497 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-26 21:22:19,185 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:22:19,185 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2018-09-26 21:22:19,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-09-26 21:22:19,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-09-26 21:22:19,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2018-09-26 21:22:19,187 INFO L87 Difference]: Start difference. First operand 222 states and 245 transitions. Second operand 53 states. [2018-09-26 21:22:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:22:22,216 INFO L93 Difference]: Finished difference Result 2184 states and 2878 transitions. [2018-09-26 21:22:22,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-09-26 21:22:22,217 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 221 [2018-09-26 21:22:22,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:22:22,230 INFO L225 Difference]: With dead ends: 2184 [2018-09-26 21:22:22,231 INFO L226 Difference]: Without dead ends: 2182 [2018-09-26 21:22:22,232 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2018-09-26 21:22:22,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2018-09-26 21:22:22,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 306. [2018-09-26 21:22:22,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2018-09-26 21:22:22,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 357 transitions. [2018-09-26 21:22:22,673 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 357 transitions. Word has length 221 [2018-09-26 21:22:22,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:22:22,673 INFO L480 AbstractCegarLoop]: Abstraction has 306 states and 357 transitions. [2018-09-26 21:22:22,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-09-26 21:22:22,674 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 357 transitions. [2018-09-26 21:22:22,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-09-26 21:22:22,675 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:22:22,676 INFO L375 BasicCegarLoop]: trace histogram [101, 100, 51, 50, 1, 1, 1] [2018-09-26 21:22:22,676 INFO L423 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:22:22,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:22:22,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1270384855, now seen corresponding path program 30 times [2018-09-26 21:22:22,676 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:22:22,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:22:22,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:22,677 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:22:22,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:22:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:22:25,303 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 7648 proven. 3876 refuted. 0 times theorem prover too weak. 3626 trivial. 0 not checked. [2018-09-26 21:22:25,303 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:22:25,303 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:22:25,313 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-26 21:22:25,575 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 101 check-sat command(s) [2018-09-26 21:22:25,575 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:22:25,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:22:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 0 proven. 15150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:22:30,508 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:22:30,508 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 102] total 105 [2018-09-26 21:22:30,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-09-26 21:22:30,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-09-26 21:22:30,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=10611, Unknown=0, NotChecked=0, Total=10920 [2018-09-26 21:22:30,511 INFO L87 Difference]: Start difference. First operand 306 states and 357 transitions. Second operand 105 states. [2018-09-26 21:22:52,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:22:52,514 INFO L93 Difference]: Finished difference Result 4437 states and 5816 transitions. [2018-09-26 21:22:52,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-09-26 21:22:52,515 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 305 [2018-09-26 21:22:52,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:22:52,531 INFO L225 Difference]: With dead ends: 4437 [2018-09-26 21:22:52,531 INFO L226 Difference]: Without dead ends: 4281 [2018-09-26 21:22:52,533 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=309, Invalid=10611, Unknown=0, NotChecked=0, Total=10920 [2018-09-26 21:22:52,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2018-09-26 21:23:02,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 4183. [2018-09-26 21:23:02,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4183 states. [2018-09-26 21:23:02,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4183 states to 4183 states and 4283 transitions. [2018-09-26 21:23:02,154 INFO L78 Accepts]: Start accepts. Automaton has 4183 states and 4283 transitions. Word has length 305 [2018-09-26 21:23:02,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:23:02,155 INFO L480 AbstractCegarLoop]: Abstraction has 4183 states and 4283 transitions. [2018-09-26 21:23:02,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-09-26 21:23:02,155 INFO L276 IsEmpty]: Start isEmpty. Operand 4183 states and 4283 transitions. [2018-09-26 21:23:02,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-09-26 21:23:02,156 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:23:02,156 INFO L375 BasicCegarLoop]: trace histogram [102, 101, 52, 50, 1, 1, 1] [2018-09-26 21:23:02,156 INFO L423 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:23:02,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:23:02,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1218035091, now seen corresponding path program 31 times [2018-09-26 21:23:02,157 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:23:02,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:23:02,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:23:02,158 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:23:02,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:23:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:23:04,101 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 7903 proven. 7401 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2018-09-26 21:23:04,102 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:23:04,102 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:23:04,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:23:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:23:04,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:23:04,337 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 7903 proven. 7401 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2018-09-26 21:23:04,372 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:23:04,372 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2018-09-26 21:23:04,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-09-26 21:23:04,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-09-26 21:23:04,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2018-09-26 21:23:04,374 INFO L87 Difference]: Start difference. First operand 4183 states and 4283 transitions. Second operand 54 states. [2018-09-26 21:23:06,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:23:06,148 INFO L93 Difference]: Finished difference Result 4334 states and 4434 transitions. [2018-09-26 21:23:06,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-09-26 21:23:06,149 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 308 [2018-09-26 21:23:06,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:23:06,149 INFO L225 Difference]: With dead ends: 4334 [2018-09-26 21:23:06,149 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 21:23:06,155 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2018-09-26 21:23:06,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 21:23:06,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 21:23:06,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 21:23:06,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 21:23:06,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 308 [2018-09-26 21:23:06,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:23:06,156 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 21:23:06,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-09-26 21:23:06,156 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 21:23:06,156 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 21:23:06,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 21:23:10,967 WARN L178 SmtUtils]: Spent 4.79 s on a formula simplification. DAG size of input: 1519 DAG size of output: 1178 [2018-09-26 21:23:11,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-26 21:23:11,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-26 21:23:11,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-26 21:23:15,454 WARN L178 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 1626 DAG size of output: 1050 [2018-09-26 21:23:18,697 WARN L178 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 1519 DAG size of output: 1178 [2018-09-26 21:23:29,883 WARN L178 SmtUtils]: Spent 11.17 s on a formula simplification. DAG size of input: 1170 DAG size of output: 459 [2018-09-26 21:23:40,901 WARN L178 SmtUtils]: Spent 11.01 s on a formula simplification. DAG size of input: 1050 DAG size of output: 461 [2018-09-26 21:23:51,710 WARN L178 SmtUtils]: Spent 10.80 s on a formula simplification. DAG size of input: 1170 DAG size of output: 459 [2018-09-26 21:23:51,715 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 55) no Hoare annotation was computed. [2018-09-26 21:23:51,715 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 55) no Hoare annotation was computed. [2018-09-26 21:23:51,716 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 55) no Hoare annotation was computed. [2018-09-26 21:23:51,716 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 54) no Hoare annotation was computed. [2018-09-26 21:23:51,718 INFO L422 ceAbstractionStarter]: At program point L22(lines 22 31) the Hoare annotation is: (let ((.cse7 (<= ULTIMATE.start_main_~y~4 11)) (.cse6 (<= 11 ULTIMATE.start_main_~y~4)) (.cse2 (<= ULTIMATE.start_main_~y~4 44)) (.cse3 (<= 44 ULTIMATE.start_main_~y~4)) (.cse11 (<= 2 ULTIMATE.start_main_~y~4)) (.cse10 (<= ULTIMATE.start_main_~y~4 2)) (.cse26 (<= ULTIMATE.start_main_~y~4 7)) (.cse27 (<= 7 ULTIMATE.start_main_~y~4)) (.cse12 (<= ULTIMATE.start_main_~y~4 22)) (.cse13 (<= 22 ULTIMATE.start_main_~y~4)) (.cse39 (<= ULTIMATE.start_main_~y~4 6)) (.cse38 (<= 6 ULTIMATE.start_main_~y~4)) (.cse58 (<= ULTIMATE.start_main_~y~4 28)) (.cse59 (<= 28 ULTIMATE.start_main_~y~4)) (.cse54 (<= 49 ULTIMATE.start_main_~y~4)) (.cse55 (<= ULTIMATE.start_main_~y~4 49)) (.cse37 (<= 19 ULTIMATE.start_main_~y~4)) (.cse36 (<= ULTIMATE.start_main_~y~4 19)) (.cse42 (<= 20 ULTIMATE.start_main_~y~4)) (.cse43 (<= ULTIMATE.start_main_~y~4 20)) (.cse60 (<= 25 ULTIMATE.start_main_~y~4)) (.cse61 (<= ULTIMATE.start_main_~y~4 25)) (.cse18 (<= 16 ULTIMATE.start_main_~y~4)) (.cse19 (<= ULTIMATE.start_main_~y~4 16)) (.cse67 (<= 9 ULTIMATE.start_main_~y~4)) (.cse66 (<= ULTIMATE.start_main_~y~4 9)) (.cse32 (<= ULTIMATE.start_main_~y~4 30)) (.cse33 (<= 30 ULTIMATE.start_main_~y~4)) (.cse28 (<= 32 ULTIMATE.start_main_~y~4)) (.cse29 (<= ULTIMATE.start_main_~y~4 32)) (.cse4 (<= 35 ULTIMATE.start_main_~y~4)) (.cse5 (<= ULTIMATE.start_main_~y~4 35)) (.cse65 (<= 13 ULTIMATE.start_main_~y~4)) (.cse64 (<= ULTIMATE.start_main_~y~4 13)) (.cse69 (<= 24 ULTIMATE.start_main_~y~4)) (.cse68 (<= ULTIMATE.start_main_~y~4 24)) (.cse40 (<= 4 ULTIMATE.start_main_~y~4)) (.cse41 (<= ULTIMATE.start_main_~y~4 4)) (.cse20 (<= 21 ULTIMATE.start_main_~y~4)) (.cse21 (<= ULTIMATE.start_main_~y~4 21)) (.cse77 (<= ULTIMATE.start_main_~y~4 5)) (.cse76 (<= 5 ULTIMATE.start_main_~y~4)) (.cse23 (<= ULTIMATE.start_main_~y~4 37)) (.cse22 (<= 37 ULTIMATE.start_main_~y~4)) (.cse46 (<= 17 ULTIMATE.start_main_~y~4)) (.cse47 (<= ULTIMATE.start_main_~y~4 17)) (.cse83 (<= 36 ULTIMATE.start_main_~y~4)) (.cse82 (<= ULTIMATE.start_main_~y~4 36)) (.cse31 (<= 40 ULTIMATE.start_main_~y~4)) (.cse30 (<= ULTIMATE.start_main_~y~4 40)) (.cse70 (<= 8 ULTIMATE.start_main_~y~4)) (.cse71 (<= ULTIMATE.start_main_~y~4 8)) (.cse78 (<= ULTIMATE.start_main_~y~4 46)) (.cse79 (<= 46 ULTIMATE.start_main_~y~4)) (.cse48 (<= 45 ULTIMATE.start_main_~y~4)) (.cse49 (<= ULTIMATE.start_main_~y~4 45)) (.cse35 (<= ULTIMATE.start_main_~y~4 26)) (.cse34 (<= 26 ULTIMATE.start_main_~y~4)) (.cse44 (<= 14 ULTIMATE.start_main_~y~4)) (.cse45 (<= ULTIMATE.start_main_~y~4 14)) (.cse56 (<= 31 ULTIMATE.start_main_~y~4)) (.cse57 (<= ULTIMATE.start_main_~y~4 31)) (.cse90 (<= ULTIMATE.start_main_~y~4 27)) (.cse91 (<= 27 ULTIMATE.start_main_~y~4)) (.cse16 (<= ULTIMATE.start_main_~y~4 3)) (.cse17 (<= 3 ULTIMATE.start_main_~y~4)) (.cse14 (<= 43 ULTIMATE.start_main_~y~4)) (.cse15 (<= ULTIMATE.start_main_~y~4 43)) (.cse53 (<= ULTIMATE.start_main_~y~4 23)) (.cse52 (<= 23 ULTIMATE.start_main_~y~4)) (.cse84 (<= ULTIMATE.start_main_~y~4 10)) (.cse85 (<= 10 ULTIMATE.start_main_~y~4)) (.cse80 (<= ULTIMATE.start_main_~y~4 15)) (.cse81 (<= 15 ULTIMATE.start_main_~y~4)) (.cse74 (<= 39 ULTIMATE.start_main_~y~4)) (.cse75 (<= ULTIMATE.start_main_~y~4 39)) (.cse96 (<= ULTIMATE.start_main_~y~4 1)) (.cse97 (<= 1 ULTIMATE.start_main_~y~4)) (.cse72 (<= ULTIMATE.start_main_~y~4 0)) (.cse73 (<= 0 ULTIMATE.start_main_~y~4)) (.cse89 (<= 38 ULTIMATE.start_main_~y~4)) (.cse88 (<= ULTIMATE.start_main_~y~4 38)) (.cse63 (<= ULTIMATE.start_main_~y~4 41)) (.cse62 (<= 41 ULTIMATE.start_main_~y~4)) (.cse92 (<= 47 ULTIMATE.start_main_~y~4)) (.cse93 (<= ULTIMATE.start_main_~y~4 47)) (.cse8 (<= ULTIMATE.start_main_~y~4 34)) (.cse9 (<= 34 ULTIMATE.start_main_~y~4)) (.cse87 (<= ULTIMATE.start_main_~y~4 42)) (.cse86 (<= 42 ULTIMATE.start_main_~y~4)) (.cse51 (<= ULTIMATE.start_main_~y~4 18)) (.cse50 (<= 18 ULTIMATE.start_main_~y~4)) (.cse94 (<= 48 ULTIMATE.start_main_~y~4)) (.cse95 (<= ULTIMATE.start_main_~y~4 48)) (.cse98 (<= ULTIMATE.start_main_~y~4 29)) (.cse99 (<= 29 ULTIMATE.start_main_~y~4)) (.cse0 (<= 33 ULTIMATE.start_main_~y~4)) (.cse1 (<= ULTIMATE.start_main_~y~4 33)) (.cse24 (<= 12 ULTIMATE.start_main_~y~4)) (.cse25 (<= ULTIMATE.start_main_~y~4 12))) (or (and .cse0 (= ULTIMATE.start_main_~x~4 33) .cse1) (and .cse2 .cse3 (= ULTIMATE.start_main_~x~4 44)) (and .cse4 .cse5 (<= 65 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 65)) (and (<= ULTIMATE.start_main_~x~4 89) (<= 89 ULTIMATE.start_main_~x~4) .cse6 .cse7) (and .cse7 .cse6 (= ULTIMATE.start_main_~x~4 11)) (and (= ULTIMATE.start_main_~x~4 34) .cse8 .cse9) (and .cse10 (= ULTIMATE.start_main_~x~4 2) .cse11) (and .cse12 (= ULTIMATE.start_main_~x~4 22) .cse13) (and .cse14 (<= 57 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 57) .cse15) (and (<= 56 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 56) .cse2 .cse3) (and .cse16 .cse17 (= ULTIMATE.start_main_~x~4 3)) (and (= ULTIMATE.start_main_~x~4 16) .cse18 .cse19) (and (= ULTIMATE.start_main_~x~4 21) .cse20 .cse21) (and .cse22 .cse23 (= ULTIMATE.start_main_~x~4 37)) (and (= ULTIMATE.start_main_~x~4 12) .cse24 .cse25) (and .cse11 (<= ULTIMATE.start_main_~x~4 98) .cse10 (<= 98 ULTIMATE.start_main_~x~4)) (and .cse26 .cse27 (= ULTIMATE.start_main_~x~4 7)) (and (<= ULTIMATE.start_main_~x~4 68) (<= 68 ULTIMATE.start_main_~x~4) .cse28 .cse29) (and .cse30 .cse31 (= ULTIMATE.start_main_~x~4 40)) (and (= ULTIMATE.start_main_~x~4 30) .cse32 .cse33) (and .cse34 (<= 74 ULTIMATE.start_main_~x~4) .cse35 (<= ULTIMATE.start_main_~x~4 74)) (and (<= ULTIMATE.start_main_~x~4 81) (<= 81 ULTIMATE.start_main_~x~4) .cse36 .cse37) (and (= ULTIMATE.start_main_~x~4 6) .cse38 .cse39) (and .cse40 (<= ULTIMATE.start_main_~x~4 96) (<= 96 ULTIMATE.start_main_~x~4) .cse41) (and .cse26 (<= ULTIMATE.start_main_~x~4 93) .cse27 (<= 93 ULTIMATE.start_main_~x~4)) (and .cse12 (<= ULTIMATE.start_main_~x~4 78) (<= 78 ULTIMATE.start_main_~x~4) .cse13) (and (= ULTIMATE.start_main_~x~4 20) .cse42 .cse43) (and .cse44 (= ULTIMATE.start_main_~x~4 14) .cse45) (and .cse39 (<= ULTIMATE.start_main_~x~4 94) (<= 94 ULTIMATE.start_main_~x~4) .cse38) (and (<= 83 ULTIMATE.start_main_~x~4) .cse46 .cse47 (<= ULTIMATE.start_main_~x~4 83)) (and .cse48 (= ULTIMATE.start_main_~x~4 45) .cse49) (and .cse50 .cse51 (= ULTIMATE.start_main_~x~4 18)) (and (<= ULTIMATE.start_main_~x~4 77) .cse52 (<= 77 ULTIMATE.start_main_~x~4) .cse53) (and (<= 51 ULTIMATE.start_main_~x~4) .cse54 .cse55 (<= ULTIMATE.start_main_~x~4 51)) (and .cse56 (= ULTIMATE.start_main_~x~4 31) .cse57) (and .cse58 (= ULTIMATE.start_main_~x~4 28) .cse59) (and .cse60 (<= ULTIMATE.start_main_~x~4 75) (<= 75 ULTIMATE.start_main_~x~4) .cse61) (and (<= 72 ULTIMATE.start_main_~x~4) .cse58 (<= ULTIMATE.start_main_~x~4 72) .cse59) (and (= ULTIMATE.start_main_~x~4 49) .cse54 .cse55) (and (<= ULTIMATE.start_main_~x~4 59) .cse62 .cse63 (<= 59 ULTIMATE.start_main_~x~4)) (and .cse37 .cse36 (= ULTIMATE.start_main_~x~4 19)) (and .cse42 (<= ULTIMATE.start_main_~x~4 80) (<= 80 ULTIMATE.start_main_~x~4) .cse43) (and .cse64 .cse65 (= ULTIMATE.start_main_~x~4 13)) (and .cse60 .cse61 (= ULTIMATE.start_main_~x~4 25)) (and (= ULTIMATE.start_main_~x~4 9) .cse66 .cse67) (and (<= ULTIMATE.start_main_~x~4 76) .cse68 (<= 76 ULTIMATE.start_main_~x~4) .cse69) (and .cse18 (<= ULTIMATE.start_main_~x~4 84) .cse19 (<= 84 ULTIMATE.start_main_~x~4)) (and (<= ULTIMATE.start_main_~x~4 92) .cse70 .cse71 (<= 92 ULTIMATE.start_main_~x~4)) (and .cse72 .cse73 (<= ULTIMATE.start_main_~x~4 100) (<= 100 ULTIMATE.start_main_~x~4)) (and .cse67 (<= ULTIMATE.start_main_~x~4 91) .cse66 (<= 91 ULTIMATE.start_main_~x~4)) (and .cse32 (<= ULTIMATE.start_main_~x~4 70) (<= 70 ULTIMATE.start_main_~x~4) .cse33) (and .cse28 (= ULTIMATE.start_main_~x~4 32) .cse29) (and (= ULTIMATE.start_main_~x~4 35) .cse4 .cse5) (and .cse65 .cse64 (<= ULTIMATE.start_main_~x~4 87) (<= 87 ULTIMATE.start_main_~x~4)) (and .cse74 .cse75 (= ULTIMATE.start_main_~x~4 39)) (and .cse69 .cse68 (= ULTIMATE.start_main_~x~4 24)) (and .cse40 (= ULTIMATE.start_main_~x~4 4) .cse41) (and (<= 79 ULTIMATE.start_main_~x~4) .cse20 (<= ULTIMATE.start_main_~x~4 79) .cse21) (and .cse76 .cse77 (= ULTIMATE.start_main_~x~4 5)) (and (<= ULTIMATE.start_main_~x~4 54) .cse78 (<= 54 ULTIMATE.start_main_~x~4) .cse79) (and .cse80 (= ULTIMATE.start_main_~x~4 15) .cse81) (and .cse77 (<= 95 ULTIMATE.start_main_~x~4) .cse76 (<= ULTIMATE.start_main_~x~4 95)) (and (<= 63 ULTIMATE.start_main_~x~4) .cse23 (<= ULTIMATE.start_main_~x~4 63) .cse22) (and (= ULTIMATE.start_main_~x~4 36) .cse82 .cse83) (and (= ULTIMATE.start_main_~x~4 17) .cse46 .cse47) (and .cse84 (<= ULTIMATE.start_main_~x~4 90) .cse85 (<= 90 ULTIMATE.start_main_~x~4)) (and .cse83 (<= ULTIMATE.start_main_~x~4 64) .cse82 (<= 64 ULTIMATE.start_main_~x~4)) (and .cse31 (<= 60 ULTIMATE.start_main_~x~4) .cse30 (<= ULTIMATE.start_main_~x~4 60)) (and .cse70 .cse71 (= ULTIMATE.start_main_~x~4 8)) (and .cse86 (<= 58 ULTIMATE.start_main_~x~4) .cse87 (<= ULTIMATE.start_main_~x~4 58)) (and .cse88 (= ULTIMATE.start_main_~x~4 38) .cse89) (and (= ULTIMATE.start_main_~x~4 46) .cse78 .cse79) (and .cse90 .cse91 (<= ULTIMATE.start_main_~x~4 73) (<= 73 ULTIMATE.start_main_~x~4)) (and (= ULTIMATE.start_main_~x~4 47) .cse92 .cse93) (and .cse94 (= ULTIMATE.start_main_~x~4 48) .cse95) (and .cse48 (<= 55 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 55) .cse49) (and (= ULTIMATE.start_main_~x~4 26) .cse35 .cse34) (and (<= 99 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 99) .cse96 .cse97) (and .cse44 (<= 86 ULTIMATE.start_main_~x~4) .cse45 (<= ULTIMATE.start_main_~x~4 86)) (and (= ULTIMATE.start_main_~x~4 29) .cse98 .cse99) (and .cse56 (<= 69 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 69) .cse57) (and .cse90 (= ULTIMATE.start_main_~x~4 27) .cse91) (and .cse16 (<= 97 ULTIMATE.start_main_~x~4) .cse17 (<= ULTIMATE.start_main_~x~4 97)) (and .cse14 (= ULTIMATE.start_main_~x~4 43) .cse15) (and .cse53 .cse52 (= ULTIMATE.start_main_~x~4 23)) (and .cse84 .cse85 (= ULTIMATE.start_main_~x~4 10)) (and .cse80 .cse81 (<= 85 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 85)) (and (<= 61 ULTIMATE.start_main_~x~4) .cse74 (<= ULTIMATE.start_main_~x~4 61) .cse75) (and .cse96 .cse97 (= ULTIMATE.start_main_~x~4 1)) (and .cse72 .cse73 (= ULTIMATE.start_main_~x~4 0)) (and .cse89 (<= ULTIMATE.start_main_~x~4 62) .cse88 (<= 62 ULTIMATE.start_main_~x~4)) (and .cse63 (= ULTIMATE.start_main_~x~4 41) .cse62) (and .cse92 (<= 53 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 53) .cse93) (and (<= 66 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 66) .cse8 .cse9) (and .cse87 (= ULTIMATE.start_main_~x~4 42) .cse86) (and (<= ULTIMATE.start_main_~x~4 82) (<= 82 ULTIMATE.start_main_~x~4) .cse51 .cse50) (and (<= ULTIMATE.start_main_~x~4 50) (<= ULTIMATE.start_main_~y~4 50) (<= 50 ULTIMATE.start_main_~x~4) (<= 50 ULTIMATE.start_main_~y~4)) (and (<= ULTIMATE.start_main_~x~4 52) (<= 52 ULTIMATE.start_main_~x~4) .cse94 .cse95) (and (<= 71 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 71) .cse98 .cse99) (and (<= 67 ULTIMATE.start_main_~x~4) .cse0 .cse1 (<= ULTIMATE.start_main_~x~4 67)) (and .cse24 (<= 88 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 88) .cse25))) [2018-09-26 21:23:51,719 INFO L422 ceAbstractionStarter]: At program point L52(lines 18 52) the Hoare annotation is: (let ((.cse7 (<= ULTIMATE.start_main_~y~4 11)) (.cse6 (<= 11 ULTIMATE.start_main_~y~4)) (.cse2 (<= ULTIMATE.start_main_~y~4 44)) (.cse3 (<= 44 ULTIMATE.start_main_~y~4)) (.cse11 (<= 2 ULTIMATE.start_main_~y~4)) (.cse10 (<= ULTIMATE.start_main_~y~4 2)) (.cse26 (<= ULTIMATE.start_main_~y~4 7)) (.cse27 (<= 7 ULTIMATE.start_main_~y~4)) (.cse12 (<= ULTIMATE.start_main_~y~4 22)) (.cse13 (<= 22 ULTIMATE.start_main_~y~4)) (.cse39 (<= ULTIMATE.start_main_~y~4 6)) (.cse38 (<= 6 ULTIMATE.start_main_~y~4)) (.cse58 (<= ULTIMATE.start_main_~y~4 28)) (.cse59 (<= 28 ULTIMATE.start_main_~y~4)) (.cse54 (<= 49 ULTIMATE.start_main_~y~4)) (.cse55 (<= ULTIMATE.start_main_~y~4 49)) (.cse37 (<= 19 ULTIMATE.start_main_~y~4)) (.cse36 (<= ULTIMATE.start_main_~y~4 19)) (.cse42 (<= 20 ULTIMATE.start_main_~y~4)) (.cse43 (<= ULTIMATE.start_main_~y~4 20)) (.cse60 (<= 25 ULTIMATE.start_main_~y~4)) (.cse61 (<= ULTIMATE.start_main_~y~4 25)) (.cse18 (<= 16 ULTIMATE.start_main_~y~4)) (.cse19 (<= ULTIMATE.start_main_~y~4 16)) (.cse67 (<= 9 ULTIMATE.start_main_~y~4)) (.cse66 (<= ULTIMATE.start_main_~y~4 9)) (.cse32 (<= ULTIMATE.start_main_~y~4 30)) (.cse33 (<= 30 ULTIMATE.start_main_~y~4)) (.cse28 (<= 32 ULTIMATE.start_main_~y~4)) (.cse29 (<= ULTIMATE.start_main_~y~4 32)) (.cse4 (<= 35 ULTIMATE.start_main_~y~4)) (.cse5 (<= ULTIMATE.start_main_~y~4 35)) (.cse65 (<= 13 ULTIMATE.start_main_~y~4)) (.cse64 (<= ULTIMATE.start_main_~y~4 13)) (.cse69 (<= 24 ULTIMATE.start_main_~y~4)) (.cse68 (<= ULTIMATE.start_main_~y~4 24)) (.cse40 (<= 4 ULTIMATE.start_main_~y~4)) (.cse41 (<= ULTIMATE.start_main_~y~4 4)) (.cse20 (<= 21 ULTIMATE.start_main_~y~4)) (.cse21 (<= ULTIMATE.start_main_~y~4 21)) (.cse77 (<= ULTIMATE.start_main_~y~4 5)) (.cse76 (<= 5 ULTIMATE.start_main_~y~4)) (.cse23 (<= ULTIMATE.start_main_~y~4 37)) (.cse22 (<= 37 ULTIMATE.start_main_~y~4)) (.cse46 (<= 17 ULTIMATE.start_main_~y~4)) (.cse47 (<= ULTIMATE.start_main_~y~4 17)) (.cse83 (<= 36 ULTIMATE.start_main_~y~4)) (.cse82 (<= ULTIMATE.start_main_~y~4 36)) (.cse31 (<= 40 ULTIMATE.start_main_~y~4)) (.cse30 (<= ULTIMATE.start_main_~y~4 40)) (.cse70 (<= 8 ULTIMATE.start_main_~y~4)) (.cse71 (<= ULTIMATE.start_main_~y~4 8)) (.cse78 (<= ULTIMATE.start_main_~y~4 46)) (.cse79 (<= 46 ULTIMATE.start_main_~y~4)) (.cse48 (<= 45 ULTIMATE.start_main_~y~4)) (.cse49 (<= ULTIMATE.start_main_~y~4 45)) (.cse35 (<= ULTIMATE.start_main_~y~4 26)) (.cse34 (<= 26 ULTIMATE.start_main_~y~4)) (.cse44 (<= 14 ULTIMATE.start_main_~y~4)) (.cse45 (<= ULTIMATE.start_main_~y~4 14)) (.cse56 (<= 31 ULTIMATE.start_main_~y~4)) (.cse57 (<= ULTIMATE.start_main_~y~4 31)) (.cse90 (<= ULTIMATE.start_main_~y~4 27)) (.cse91 (<= 27 ULTIMATE.start_main_~y~4)) (.cse16 (<= ULTIMATE.start_main_~y~4 3)) (.cse17 (<= 3 ULTIMATE.start_main_~y~4)) (.cse14 (<= 43 ULTIMATE.start_main_~y~4)) (.cse15 (<= ULTIMATE.start_main_~y~4 43)) (.cse53 (<= ULTIMATE.start_main_~y~4 23)) (.cse52 (<= 23 ULTIMATE.start_main_~y~4)) (.cse84 (<= ULTIMATE.start_main_~y~4 10)) (.cse85 (<= 10 ULTIMATE.start_main_~y~4)) (.cse80 (<= ULTIMATE.start_main_~y~4 15)) (.cse81 (<= 15 ULTIMATE.start_main_~y~4)) (.cse74 (<= 39 ULTIMATE.start_main_~y~4)) (.cse75 (<= ULTIMATE.start_main_~y~4 39)) (.cse96 (<= ULTIMATE.start_main_~y~4 1)) (.cse97 (<= 1 ULTIMATE.start_main_~y~4)) (.cse72 (<= ULTIMATE.start_main_~y~4 0)) (.cse73 (<= 0 ULTIMATE.start_main_~y~4)) (.cse89 (<= 38 ULTIMATE.start_main_~y~4)) (.cse88 (<= ULTIMATE.start_main_~y~4 38)) (.cse63 (<= ULTIMATE.start_main_~y~4 41)) (.cse62 (<= 41 ULTIMATE.start_main_~y~4)) (.cse92 (<= 47 ULTIMATE.start_main_~y~4)) (.cse93 (<= ULTIMATE.start_main_~y~4 47)) (.cse8 (<= ULTIMATE.start_main_~y~4 34)) (.cse9 (<= 34 ULTIMATE.start_main_~y~4)) (.cse87 (<= ULTIMATE.start_main_~y~4 42)) (.cse86 (<= 42 ULTIMATE.start_main_~y~4)) (.cse51 (<= ULTIMATE.start_main_~y~4 18)) (.cse50 (<= 18 ULTIMATE.start_main_~y~4)) (.cse94 (<= 48 ULTIMATE.start_main_~y~4)) (.cse95 (<= ULTIMATE.start_main_~y~4 48)) (.cse98 (<= ULTIMATE.start_main_~y~4 29)) (.cse99 (<= 29 ULTIMATE.start_main_~y~4)) (.cse0 (<= 33 ULTIMATE.start_main_~y~4)) (.cse1 (<= ULTIMATE.start_main_~y~4 33)) (.cse24 (<= 12 ULTIMATE.start_main_~y~4)) (.cse25 (<= ULTIMATE.start_main_~y~4 12))) (or (and .cse0 (= ULTIMATE.start_main_~x~4 33) .cse1) (and .cse2 .cse3 (= ULTIMATE.start_main_~x~4 44)) (and .cse4 .cse5 (<= 65 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 65)) (and (<= ULTIMATE.start_main_~x~4 89) (<= 89 ULTIMATE.start_main_~x~4) .cse6 .cse7) (and .cse7 .cse6 (= ULTIMATE.start_main_~x~4 11)) (and (= ULTIMATE.start_main_~x~4 34) .cse8 .cse9) (and .cse10 (= ULTIMATE.start_main_~x~4 2) .cse11) (and .cse12 (= ULTIMATE.start_main_~x~4 22) .cse13) (and .cse14 (<= 57 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 57) .cse15) (and (<= 56 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 56) .cse2 .cse3) (and .cse16 .cse17 (= ULTIMATE.start_main_~x~4 3)) (and (= ULTIMATE.start_main_~x~4 16) .cse18 .cse19) (and (= ULTIMATE.start_main_~x~4 21) .cse20 .cse21) (and .cse22 .cse23 (= ULTIMATE.start_main_~x~4 37)) (and (= ULTIMATE.start_main_~x~4 12) .cse24 .cse25) (and .cse11 (<= ULTIMATE.start_main_~x~4 98) .cse10 (<= 98 ULTIMATE.start_main_~x~4)) (and .cse26 .cse27 (= ULTIMATE.start_main_~x~4 7)) (and (<= ULTIMATE.start_main_~x~4 68) (<= 68 ULTIMATE.start_main_~x~4) .cse28 .cse29) (and .cse30 .cse31 (= ULTIMATE.start_main_~x~4 40)) (and (= ULTIMATE.start_main_~x~4 30) .cse32 .cse33) (and .cse34 (<= 74 ULTIMATE.start_main_~x~4) .cse35 (<= ULTIMATE.start_main_~x~4 74)) (and (<= ULTIMATE.start_main_~x~4 81) (<= 81 ULTIMATE.start_main_~x~4) .cse36 .cse37) (and (= ULTIMATE.start_main_~x~4 6) .cse38 .cse39) (and .cse40 (<= ULTIMATE.start_main_~x~4 96) (<= 96 ULTIMATE.start_main_~x~4) .cse41) (and .cse26 (<= ULTIMATE.start_main_~x~4 93) .cse27 (<= 93 ULTIMATE.start_main_~x~4)) (and .cse12 (<= ULTIMATE.start_main_~x~4 78) (<= 78 ULTIMATE.start_main_~x~4) .cse13) (and (= ULTIMATE.start_main_~x~4 20) .cse42 .cse43) (and .cse44 (= ULTIMATE.start_main_~x~4 14) .cse45) (and .cse39 (<= ULTIMATE.start_main_~x~4 94) (<= 94 ULTIMATE.start_main_~x~4) .cse38) (and (<= 83 ULTIMATE.start_main_~x~4) .cse46 .cse47 (<= ULTIMATE.start_main_~x~4 83)) (and .cse48 (= ULTIMATE.start_main_~x~4 45) .cse49) (and .cse50 .cse51 (= ULTIMATE.start_main_~x~4 18)) (and (<= ULTIMATE.start_main_~x~4 77) .cse52 (<= 77 ULTIMATE.start_main_~x~4) .cse53) (and (<= 51 ULTIMATE.start_main_~x~4) .cse54 .cse55 (<= ULTIMATE.start_main_~x~4 51)) (and .cse56 (= ULTIMATE.start_main_~x~4 31) .cse57) (and .cse58 (= ULTIMATE.start_main_~x~4 28) .cse59) (and .cse60 (<= ULTIMATE.start_main_~x~4 75) (<= 75 ULTIMATE.start_main_~x~4) .cse61) (and (<= 72 ULTIMATE.start_main_~x~4) .cse58 (<= ULTIMATE.start_main_~x~4 72) .cse59) (and (= ULTIMATE.start_main_~x~4 49) .cse54 .cse55) (and (<= ULTIMATE.start_main_~x~4 59) .cse62 .cse63 (<= 59 ULTIMATE.start_main_~x~4)) (and .cse37 .cse36 (= ULTIMATE.start_main_~x~4 19)) (and .cse42 (<= ULTIMATE.start_main_~x~4 80) (<= 80 ULTIMATE.start_main_~x~4) .cse43) (and .cse64 .cse65 (= ULTIMATE.start_main_~x~4 13)) (and .cse60 .cse61 (= ULTIMATE.start_main_~x~4 25)) (and (= ULTIMATE.start_main_~x~4 9) .cse66 .cse67) (and (<= ULTIMATE.start_main_~x~4 76) .cse68 (<= 76 ULTIMATE.start_main_~x~4) .cse69) (and .cse18 (<= ULTIMATE.start_main_~x~4 84) .cse19 (<= 84 ULTIMATE.start_main_~x~4)) (and (<= ULTIMATE.start_main_~x~4 92) .cse70 .cse71 (<= 92 ULTIMATE.start_main_~x~4)) (and .cse72 .cse73 (<= ULTIMATE.start_main_~x~4 100) (<= 100 ULTIMATE.start_main_~x~4)) (and .cse67 (<= ULTIMATE.start_main_~x~4 91) .cse66 (<= 91 ULTIMATE.start_main_~x~4)) (and .cse32 (<= ULTIMATE.start_main_~x~4 70) (<= 70 ULTIMATE.start_main_~x~4) .cse33) (and .cse28 (= ULTIMATE.start_main_~x~4 32) .cse29) (and (= ULTIMATE.start_main_~x~4 35) .cse4 .cse5) (and .cse65 .cse64 (<= ULTIMATE.start_main_~x~4 87) (<= 87 ULTIMATE.start_main_~x~4)) (and .cse74 .cse75 (= ULTIMATE.start_main_~x~4 39)) (and .cse69 .cse68 (= ULTIMATE.start_main_~x~4 24)) (and .cse40 (= ULTIMATE.start_main_~x~4 4) .cse41) (and (<= 79 ULTIMATE.start_main_~x~4) .cse20 (<= ULTIMATE.start_main_~x~4 79) .cse21) (and .cse76 .cse77 (= ULTIMATE.start_main_~x~4 5)) (and (<= ULTIMATE.start_main_~x~4 54) .cse78 (<= 54 ULTIMATE.start_main_~x~4) .cse79) (and .cse80 (= ULTIMATE.start_main_~x~4 15) .cse81) (and .cse77 (<= 95 ULTIMATE.start_main_~x~4) .cse76 (<= ULTIMATE.start_main_~x~4 95)) (and (<= 63 ULTIMATE.start_main_~x~4) .cse23 (<= ULTIMATE.start_main_~x~4 63) .cse22) (and (= ULTIMATE.start_main_~x~4 36) .cse82 .cse83) (and (= ULTIMATE.start_main_~x~4 17) .cse46 .cse47) (and .cse84 (<= ULTIMATE.start_main_~x~4 90) .cse85 (<= 90 ULTIMATE.start_main_~x~4)) (and .cse83 (<= ULTIMATE.start_main_~x~4 64) .cse82 (<= 64 ULTIMATE.start_main_~x~4)) (and .cse31 (<= 60 ULTIMATE.start_main_~x~4) .cse30 (<= ULTIMATE.start_main_~x~4 60)) (and .cse70 .cse71 (= ULTIMATE.start_main_~x~4 8)) (and .cse86 (<= 58 ULTIMATE.start_main_~x~4) .cse87 (<= ULTIMATE.start_main_~x~4 58)) (and .cse88 (= ULTIMATE.start_main_~x~4 38) .cse89) (and (= ULTIMATE.start_main_~x~4 46) .cse78 .cse79) (and .cse90 .cse91 (<= ULTIMATE.start_main_~x~4 73) (<= 73 ULTIMATE.start_main_~x~4)) (and (= ULTIMATE.start_main_~x~4 47) .cse92 .cse93) (and .cse94 (= ULTIMATE.start_main_~x~4 48) .cse95) (and .cse48 (<= 55 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 55) .cse49) (and (= ULTIMATE.start_main_~x~4 26) .cse35 .cse34) (and (<= 99 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 99) .cse96 .cse97) (and .cse44 (<= 86 ULTIMATE.start_main_~x~4) .cse45 (<= ULTIMATE.start_main_~x~4 86)) (and (= ULTIMATE.start_main_~x~4 29) .cse98 .cse99) (and .cse56 (<= 69 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 69) .cse57) (and .cse90 (= ULTIMATE.start_main_~x~4 27) .cse91) (and .cse16 (<= 97 ULTIMATE.start_main_~x~4) .cse17 (<= ULTIMATE.start_main_~x~4 97)) (and .cse14 (= ULTIMATE.start_main_~x~4 43) .cse15) (and .cse53 .cse52 (= ULTIMATE.start_main_~x~4 23)) (and .cse84 .cse85 (= ULTIMATE.start_main_~x~4 10)) (and .cse80 .cse81 (<= 85 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 85)) (and (<= 61 ULTIMATE.start_main_~x~4) .cse74 (<= ULTIMATE.start_main_~x~4 61) .cse75) (and .cse96 .cse97 (= ULTIMATE.start_main_~x~4 1)) (and .cse72 .cse73 (= ULTIMATE.start_main_~x~4 0)) (and .cse89 (<= ULTIMATE.start_main_~x~4 62) .cse88 (<= 62 ULTIMATE.start_main_~x~4)) (and .cse63 (= ULTIMATE.start_main_~x~4 41) .cse62) (and .cse92 (<= 53 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 53) .cse93) (and (<= 66 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 66) .cse8 .cse9) (and .cse87 (= ULTIMATE.start_main_~x~4 42) .cse86) (and (<= ULTIMATE.start_main_~x~4 82) (<= 82 ULTIMATE.start_main_~x~4) .cse51 .cse50) (and (<= ULTIMATE.start_main_~x~4 50) (<= ULTIMATE.start_main_~y~4 50) (<= 50 ULTIMATE.start_main_~x~4) (<= 50 ULTIMATE.start_main_~y~4)) (and (<= ULTIMATE.start_main_~x~4 52) (<= 52 ULTIMATE.start_main_~x~4) .cse94 .cse95) (and (<= 71 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 71) .cse98 .cse99) (and (<= 67 ULTIMATE.start_main_~x~4) .cse0 .cse1 (<= ULTIMATE.start_main_~x~4 67)) (and .cse24 (<= 88 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 88) .cse25))) [2018-09-26 21:23:51,719 INFO L422 ceAbstractionStarter]: At program point L46(lines 46 53) the Hoare annotation is: false [2018-09-26 21:23:51,720 INFO L422 ceAbstractionStarter]: At program point L36(lines 30 47) the Hoare annotation is: (let ((.cse2 (<= ULTIMATE.start_main_~y~4 26)) (.cse3 (<= 26 ULTIMATE.start_main_~y~4)) (.cse8 (<= ULTIMATE.start_main_~y~4 11)) (.cse9 (<= 11 ULTIMATE.start_main_~y~4)) (.cse32 (<= 17 ULTIMATE.start_main_~y~4)) (.cse33 (<= ULTIMATE.start_main_~y~4 17)) (.cse40 (<= 19 ULTIMATE.start_main_~y~4)) (.cse41 (<= ULTIMATE.start_main_~y~4 19)) (.cse34 (<= ULTIMATE.start_main_~y~4 9)) (.cse35 (<= 9 ULTIMATE.start_main_~y~4)) (.cse24 (<= ULTIMATE.start_main_~y~4 10)) (.cse25 (<= 10 ULTIMATE.start_main_~y~4)) (.cse6 (<= 5 ULTIMATE.start_main_~y~4)) (.cse7 (<= ULTIMATE.start_main_~y~4 5)) (.cse4 (<= ULTIMATE.start_main_~y~4 41)) (.cse5 (<= 41 ULTIMATE.start_main_~y~4)) (.cse43 (<= ULTIMATE.start_main_~y~4 28)) (.cse42 (<= 28 ULTIMATE.start_main_~y~4)) (.cse16 (<= ULTIMATE.start_main_~y~4 15)) (.cse17 (<= 15 ULTIMATE.start_main_~y~4)) (.cse59 (<= ULTIMATE.start_main_~y~4 36)) (.cse58 (<= 36 ULTIMATE.start_main_~y~4)) (.cse44 (<= ULTIMATE.start_main_~y~4 38)) (.cse45 (<= 38 ULTIMATE.start_main_~y~4)) (.cse46 (<= 48 ULTIMATE.start_main_~y~4)) (.cse47 (<= ULTIMATE.start_main_~y~4 48)) (.cse28 (<= 20 ULTIMATE.start_main_~y~4)) (.cse29 (<= ULTIMATE.start_main_~y~4 20)) (.cse23 (<= ULTIMATE.start_main_~y~4 49)) (.cse22 (<= 49 ULTIMATE.start_main_~y~4)) (.cse18 (<= ULTIMATE.start_main_~y~4 13)) (.cse19 (<= 13 ULTIMATE.start_main_~y~4)) (.cse62 (<= ULTIMATE.start_main_~y~4 2)) (.cse63 (<= 2 ULTIMATE.start_main_~y~4)) (.cse64 (<= 4 ULTIMATE.start_main_~y~4)) (.cse65 (<= ULTIMATE.start_main_~y~4 4)) (.cse82 (<= ULTIMATE.start_main_~y~4 42)) (.cse83 (<= 42 ULTIMATE.start_main_~y~4)) (.cse56 (<= 47 ULTIMATE.start_main_~y~4)) (.cse57 (<= ULTIMATE.start_main_~y~4 47)) (.cse14 (<= 18 ULTIMATE.start_main_~y~4)) (.cse15 (<= ULTIMATE.start_main_~y~4 18)) (.cse30 (<= 33 ULTIMATE.start_main_~y~4)) (.cse31 (<= ULTIMATE.start_main_~y~4 33)) (.cse27 (<= 39 ULTIMATE.start_main_~y~4)) (.cse26 (<= ULTIMATE.start_main_~y~4 39)) (.cse13 (<= ULTIMATE.start_main_~y~4 46)) (.cse12 (<= 46 ULTIMATE.start_main_~y~4)) (.cse50 (<= ULTIMATE.start_main_~y~4 27)) (.cse51 (<= 27 ULTIMATE.start_main_~y~4)) (.cse61 (<= ULTIMATE.start_main_~y~4 34)) (.cse60 (<= 34 ULTIMATE.start_main_~y~4)) (.cse80 (<= ULTIMATE.start_main_~y~4 7)) (.cse81 (<= 7 ULTIMATE.start_main_~y~4)) (.cse84 (<= ULTIMATE.start_main_~y~4 30)) (.cse85 (<= 30 ULTIMATE.start_main_~y~4)) (.cse74 (<= 31 ULTIMATE.start_main_~y~4)) (.cse75 (<= ULTIMATE.start_main_~y~4 31)) (.cse72 (<= ULTIMATE.start_main_~y~4 22)) (.cse73 (<= 22 ULTIMATE.start_main_~y~4)) (.cse52 (<= ULTIMATE.start_main_~y~4 1)) (.cse53 (<= 1 ULTIMATE.start_main_~y~4)) (.cse36 (<= 6 ULTIMATE.start_main_~y~4)) (.cse37 (<= ULTIMATE.start_main_~y~4 6)) (.cse76 (<= 21 ULTIMATE.start_main_~y~4)) (.cse77 (<= ULTIMATE.start_main_~y~4 21)) (.cse68 (<= ULTIMATE.start_main_~y~4 44)) (.cse69 (<= 44 ULTIMATE.start_main_~y~4)) (.cse88 (<= 16 ULTIMATE.start_main_~y~4)) (.cse89 (<= ULTIMATE.start_main_~y~4 16)) (.cse70 (<= 12 ULTIMATE.start_main_~y~4)) (.cse71 (<= ULTIMATE.start_main_~y~4 12)) (.cse54 (<= 45 ULTIMATE.start_main_~y~4)) (.cse55 (<= ULTIMATE.start_main_~y~4 45)) (.cse21 (<= 29 ULTIMATE.start_main_~y~4)) (.cse20 (<= ULTIMATE.start_main_~y~4 29)) (.cse67 (<= ULTIMATE.start_main_~y~4 35)) (.cse66 (<= 35 ULTIMATE.start_main_~y~4)) (.cse92 (<= ULTIMATE.start_main_~y~4 23)) (.cse93 (<= 23 ULTIMATE.start_main_~y~4)) (.cse78 (<= 14 ULTIMATE.start_main_~y~4)) (.cse79 (<= ULTIMATE.start_main_~y~4 14)) (.cse91 (<= ULTIMATE.start_main_~y~4 37)) (.cse90 (<= 37 ULTIMATE.start_main_~y~4)) (.cse48 (<= 25 ULTIMATE.start_main_~y~4)) (.cse49 (<= ULTIMATE.start_main_~y~4 25)) (.cse1 (<= 40 ULTIMATE.start_main_~y~4)) (.cse0 (<= ULTIMATE.start_main_~y~4 40)) (.cse86 (<= 8 ULTIMATE.start_main_~y~4)) (.cse87 (<= ULTIMATE.start_main_~y~4 8)) (.cse38 (<= 24 ULTIMATE.start_main_~y~4)) (.cse39 (<= ULTIMATE.start_main_~y~4 24)) (.cse10 (<= 43 ULTIMATE.start_main_~y~4)) (.cse11 (<= ULTIMATE.start_main_~y~4 43)) (.cse96 (<= 32 ULTIMATE.start_main_~y~4)) (.cse97 (<= ULTIMATE.start_main_~y~4 32)) (.cse94 (<= ULTIMATE.start_main_~y~4 3)) (.cse95 (<= 3 ULTIMATE.start_main_~y~4))) (or (and (= ULTIMATE.start_main_~x~4 39) .cse0 .cse1) (and .cse2 (<= ULTIMATE.start_main_~x~4 73) (<= 73 ULTIMATE.start_main_~x~4) .cse3) (and .cse4 .cse5 (= ULTIMATE.start_main_~x~4 40)) (and .cse6 .cse7 (= ULTIMATE.start_main_~x~4 4)) (and .cse8 .cse9 (= ULTIMATE.start_main_~x~4 10)) (and (<= 56 ULTIMATE.start_main_~x~4) .cse10 (<= ULTIMATE.start_main_~x~4 56) .cse11) (and .cse2 .cse3 (= ULTIMATE.start_main_~x~4 25)) (and .cse12 (<= 53 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 53) .cse13) (and .cse14 (<= ULTIMATE.start_main_~x~4 81) (<= 81 ULTIMATE.start_main_~x~4) .cse15) (and .cse16 (= ULTIMATE.start_main_~x~4 14) .cse17) (and (= ULTIMATE.start_main_~x~4 12) .cse18 .cse19) (and (= ULTIMATE.start_main_~x~4 28) .cse20 .cse21) (and .cse22 (= ULTIMATE.start_main_~x~4 48) .cse23) (and .cse24 (<= ULTIMATE.start_main_~x~4 89) (<= 89 ULTIMATE.start_main_~x~4) .cse25) (and .cse26 (<= 60 ULTIMATE.start_main_~x~4) .cse27 (<= ULTIMATE.start_main_~x~4 60)) (and (<= 88 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 88) .cse8 .cse9) (and (<= 79 ULTIMATE.start_main_~x~4) .cse28 (<= ULTIMATE.start_main_~x~4 79) .cse29) (and .cse30 (= ULTIMATE.start_main_~x~4 32) .cse31) (and (<= ULTIMATE.start_main_~x~4 82) (<= 82 ULTIMATE.start_main_~x~4) .cse32 .cse33) (and .cse34 .cse35 (= ULTIMATE.start_main_~x~4 8)) (and (= ULTIMATE.start_main_~x~4 5) .cse36 .cse37) (and (= ULTIMATE.start_main_~x~4 16) .cse32 .cse33) (and .cse38 .cse39 (= ULTIMATE.start_main_~x~4 23)) (and .cse40 (<= ULTIMATE.start_main_~x~4 80) .cse41 (<= 80 ULTIMATE.start_main_~x~4)) (and .cse42 (<= 71 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 71) .cse43) (and (<= 61 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 61) .cse44 .cse45) (and (<= 51 ULTIMATE.start_main_~x~4) .cse46 .cse47 (<= ULTIMATE.start_main_~x~4 51)) (and .cse48 .cse49 (= ULTIMATE.start_main_~x~4 24)) (and .cse40 .cse41 (= ULTIMATE.start_main_~x~4 18)) (and .cse50 (<= 72 ULTIMATE.start_main_~x~4) .cse51 (<= ULTIMATE.start_main_~x~4 72)) (and .cse52 (= ULTIMATE.start_main_~x~4 0) .cse53) (and .cse54 (= ULTIMATE.start_main_~x~4 44) .cse55) (and (<= ULTIMATE.start_main_~x~4 90) .cse34 (<= 90 ULTIMATE.start_main_~x~4) .cse35) (and (<= ULTIMATE.start_main_~x~4 52) (<= 52 ULTIMATE.start_main_~x~4) .cse56 .cse57) (and .cse58 (<= 63 ULTIMATE.start_main_~x~4) .cse59 (<= ULTIMATE.start_main_~x~4 63)) (and .cse24 (= ULTIMATE.start_main_~x~4 9) .cse25) (and .cse60 .cse61 (<= 65 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 65)) (and .cse6 .cse7 (<= ULTIMATE.start_main_~x~4 94) (<= 94 ULTIMATE.start_main_~x~4)) (and (<= ULTIMATE.start_main_~y~4 0) (<= 0 ULTIMATE.start_main_~y~4) (<= 99 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 99)) (and .cse4 .cse5 (<= 58 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 58)) (and (= ULTIMATE.start_main_~x~4 27) .cse43 .cse42) (and .cse62 .cse63 (= ULTIMATE.start_main_~x~4 1)) (and .cse64 (<= 95 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 95) .cse65) (and .cse16 (<= ULTIMATE.start_main_~x~4 84) (<= 84 ULTIMATE.start_main_~x~4) .cse17) (and (= ULTIMATE.start_main_~x~4 35) .cse59 .cse58) (and (= ULTIMATE.start_main_~x~4 34) .cse66 .cse67) (and .cse44 (= ULTIMATE.start_main_~x~4 37) .cse45) (and .cse68 (<= 55 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 55) .cse69) (and .cse46 (= ULTIMATE.start_main_~x~4 47) .cse47) (and .cse28 .cse29 (= ULTIMATE.start_main_~x~4 19)) (and .cse70 (<= ULTIMATE.start_main_~x~4 87) .cse71 (<= 87 ULTIMATE.start_main_~x~4)) (and .cse72 (= ULTIMATE.start_main_~x~4 21) .cse73) (and .cse74 (<= ULTIMATE.start_main_~x~4 68) (<= 68 ULTIMATE.start_main_~x~4) .cse75) (and (<= ULTIMATE.start_main_~x~4 50) (<= 50 ULTIMATE.start_main_~x~4) .cse23 .cse22) (and .cse18 .cse19 (<= 86 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 86)) (and (= ULTIMATE.start_main_~x~4 20) .cse76 .cse77) (and .cse62 (<= 97 ULTIMATE.start_main_~x~4) .cse63 (<= ULTIMATE.start_main_~x~4 97)) (and .cse78 .cse79 (<= 85 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 85)) (and .cse80 (<= ULTIMATE.start_main_~x~4 92) .cse81 (<= 92 ULTIMATE.start_main_~x~4)) (and .cse82 .cse83 (= ULTIMATE.start_main_~x~4 41)) (and .cse64 (= ULTIMATE.start_main_~x~4 3) .cse65) (and .cse82 .cse83 (<= 57 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 57)) (and .cse56 (= ULTIMATE.start_main_~x~4 46) .cse57) (and (<= ULTIMATE.start_main_~y~4 50) (= ULTIMATE.start_main_~x~4 49) (<= 50 ULTIMATE.start_main_~y~4)) (and .cse84 (= ULTIMATE.start_main_~x~4 29) .cse85) (and .cse14 (= ULTIMATE.start_main_~x~4 17) .cse15) (and .cse30 (<= 66 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 66) .cse31) (and .cse27 .cse26 (= ULTIMATE.start_main_~x~4 38)) (and (= ULTIMATE.start_main_~x~4 7) .cse86 .cse87) (and .cse13 (= ULTIMATE.start_main_~x~4 45) .cse12) (and (= ULTIMATE.start_main_~x~4 15) .cse88 .cse89) (and (= ULTIMATE.start_main_~x~4 26) .cse50 .cse51) (and (= ULTIMATE.start_main_~x~4 33) .cse61 .cse60) (and .cse80 (= ULTIMATE.start_main_~x~4 6) .cse81) (and .cse84 .cse85 (<= 69 ULTIMATE.start_main_~x~4) (<= ULTIMATE.start_main_~x~4 69)) (and .cse90 (= ULTIMATE.start_main_~x~4 36) .cse91) (and (<= (+ ULTIMATE.start_main_~y~4 1) 0) (<= ULTIMATE.start_main_~x~4 100) (<= 100 ULTIMATE.start_main_~x~4)) (and (= ULTIMATE.start_main_~x~4 30) .cse74 .cse75) (and (<= ULTIMATE.start_main_~x~4 77) .cse72 (<= 77 ULTIMATE.start_main_~x~4) .cse73) (and (<= ULTIMATE.start_main_~x~4 98) (<= 98 ULTIMATE.start_main_~x~4) .cse52 .cse53) (and .cse36 .cse37 (<= ULTIMATE.start_main_~x~4 93) (<= 93 ULTIMATE.start_main_~x~4)) (and (<= ULTIMATE.start_main_~x~4 76) .cse92 .cse93 (<= 76 ULTIMATE.start_main_~x~4)) (and (<= ULTIMATE.start_main_~x~4 78) .cse76 (<= 78 ULTIMATE.start_main_~x~4) .cse77) (and (= ULTIMATE.start_main_~x~4 43) .cse68 .cse69) (and (<= 83 ULTIMATE.start_main_~x~4) .cse88 .cse89 (<= ULTIMATE.start_main_~x~4 83)) (and .cse70 .cse71 (= ULTIMATE.start_main_~x~4 11)) (and (<= ULTIMATE.start_main_~x~4 54) .cse54 (<= 54 ULTIMATE.start_main_~x~4) .cse55) (and .cse21 (<= ULTIMATE.start_main_~x~4 70) (<= 70 ULTIMATE.start_main_~x~4) .cse20) (and (<= ULTIMATE.start_main_~x~4 64) (<= 64 ULTIMATE.start_main_~x~4) .cse67 .cse66) (and .cse92 .cse93 (= ULTIMATE.start_main_~x~4 22)) (and .cse78 (= ULTIMATE.start_main_~x~4 13) .cse79) (and (<= ULTIMATE.start_main_~x~4 62) .cse91 .cse90 (<= 62 ULTIMATE.start_main_~x~4)) (and .cse94 (= ULTIMATE.start_main_~x~4 2) .cse95) (and (<= 74 ULTIMATE.start_main_~x~4) .cse48 .cse49 (<= ULTIMATE.start_main_~x~4 74)) (and .cse96 (= ULTIMATE.start_main_~x~4 31) .cse97) (and .cse1 (<= ULTIMATE.start_main_~x~4 59) .cse0 (<= 59 ULTIMATE.start_main_~x~4)) (and (<= ULTIMATE.start_main_~x~4 91) .cse86 (<= 91 ULTIMATE.start_main_~x~4) .cse87) (and (<= ULTIMATE.start_main_~x~4 75) .cse38 (<= 75 ULTIMATE.start_main_~x~4) .cse39) (and .cse10 (= ULTIMATE.start_main_~x~4 42) .cse11) (and (<= 67 ULTIMATE.start_main_~x~4) .cse96 .cse97 (<= ULTIMATE.start_main_~x~4 67)) (and .cse94 .cse95 (<= ULTIMATE.start_main_~x~4 96) (<= 96 ULTIMATE.start_main_~x~4)))) [2018-09-26 21:23:51,764 INFO L202 PluginConnector]: Adding new model gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:23:51 BoogieIcfgContainer [2018-09-26 21:23:51,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 21:23:51,765 INFO L168 Benchmark]: Toolchain (without parser) took 133204.89 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.6 GB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-26 21:23:51,766 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 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. [2018-09-26 21:23:51,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.07 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. [2018-09-26 21:23:51,767 INFO L168 Benchmark]: Boogie Preprocessor took 19.83 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. [2018-09-26 21:23:51,767 INFO L168 Benchmark]: RCFGBuilder took 329.94 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. [2018-09-26 21:23:51,768 INFO L168 Benchmark]: TraceAbstraction took 132808.75 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-26 21:23:51,771 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 0.16 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 40.07 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 19.83 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 329.94 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 132808.75 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 54]: 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: 22]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((33 <= main_~y~4 && main_~x~4 == 33) && main_~y~4 <= 33) || ((main_~y~4 <= 44 && 44 <= main_~y~4) && main_~x~4 == 44)) || (((35 <= main_~y~4 && main_~y~4 <= 35) && 65 <= main_~x~4) && main_~x~4 <= 65)) || (((main_~x~4 <= 89 && 89 <= main_~x~4) && 11 <= main_~y~4) && main_~y~4 <= 11)) || ((main_~y~4 <= 11 && 11 <= main_~y~4) && main_~x~4 == 11)) || ((main_~x~4 == 34 && main_~y~4 <= 34) && 34 <= main_~y~4)) || ((main_~y~4 <= 2 && main_~x~4 == 2) && 2 <= main_~y~4)) || ((main_~y~4 <= 22 && main_~x~4 == 22) && 22 <= main_~y~4)) || (((43 <= main_~y~4 && 57 <= main_~x~4) && main_~x~4 <= 57) && main_~y~4 <= 43)) || (((56 <= main_~x~4 && main_~x~4 <= 56) && main_~y~4 <= 44) && 44 <= main_~y~4)) || ((main_~y~4 <= 3 && 3 <= main_~y~4) && main_~x~4 == 3)) || ((main_~x~4 == 16 && 16 <= main_~y~4) && main_~y~4 <= 16)) || ((main_~x~4 == 21 && 21 <= main_~y~4) && main_~y~4 <= 21)) || ((37 <= main_~y~4 && main_~y~4 <= 37) && main_~x~4 == 37)) || ((main_~x~4 == 12 && 12 <= main_~y~4) && main_~y~4 <= 12)) || (((2 <= main_~y~4 && main_~x~4 <= 98) && main_~y~4 <= 2) && 98 <= main_~x~4)) || ((main_~y~4 <= 7 && 7 <= main_~y~4) && main_~x~4 == 7)) || (((main_~x~4 <= 68 && 68 <= main_~x~4) && 32 <= main_~y~4) && main_~y~4 <= 32)) || ((main_~y~4 <= 40 && 40 <= main_~y~4) && main_~x~4 == 40)) || ((main_~x~4 == 30 && main_~y~4 <= 30) && 30 <= main_~y~4)) || (((26 <= main_~y~4 && 74 <= main_~x~4) && main_~y~4 <= 26) && main_~x~4 <= 74)) || (((main_~x~4 <= 81 && 81 <= main_~x~4) && main_~y~4 <= 19) && 19 <= main_~y~4)) || ((main_~x~4 == 6 && 6 <= main_~y~4) && main_~y~4 <= 6)) || (((4 <= main_~y~4 && main_~x~4 <= 96) && 96 <= main_~x~4) && main_~y~4 <= 4)) || (((main_~y~4 <= 7 && main_~x~4 <= 93) && 7 <= main_~y~4) && 93 <= main_~x~4)) || (((main_~y~4 <= 22 && main_~x~4 <= 78) && 78 <= main_~x~4) && 22 <= main_~y~4)) || ((main_~x~4 == 20 && 20 <= main_~y~4) && main_~y~4 <= 20)) || ((14 <= main_~y~4 && main_~x~4 == 14) && main_~y~4 <= 14)) || (((main_~y~4 <= 6 && main_~x~4 <= 94) && 94 <= main_~x~4) && 6 <= main_~y~4)) || (((83 <= main_~x~4 && 17 <= main_~y~4) && main_~y~4 <= 17) && main_~x~4 <= 83)) || ((45 <= main_~y~4 && main_~x~4 == 45) && main_~y~4 <= 45)) || ((18 <= main_~y~4 && main_~y~4 <= 18) && main_~x~4 == 18)) || (((main_~x~4 <= 77 && 23 <= main_~y~4) && 77 <= main_~x~4) && main_~y~4 <= 23)) || (((51 <= main_~x~4 && 49 <= main_~y~4) && main_~y~4 <= 49) && main_~x~4 <= 51)) || ((31 <= main_~y~4 && main_~x~4 == 31) && main_~y~4 <= 31)) || ((main_~y~4 <= 28 && main_~x~4 == 28) && 28 <= main_~y~4)) || (((25 <= main_~y~4 && main_~x~4 <= 75) && 75 <= main_~x~4) && main_~y~4 <= 25)) || (((72 <= main_~x~4 && main_~y~4 <= 28) && main_~x~4 <= 72) && 28 <= main_~y~4)) || ((main_~x~4 == 49 && 49 <= main_~y~4) && main_~y~4 <= 49)) || (((main_~x~4 <= 59 && 41 <= main_~y~4) && main_~y~4 <= 41) && 59 <= main_~x~4)) || ((19 <= main_~y~4 && main_~y~4 <= 19) && main_~x~4 == 19)) || (((20 <= main_~y~4 && main_~x~4 <= 80) && 80 <= main_~x~4) && main_~y~4 <= 20)) || ((main_~y~4 <= 13 && 13 <= main_~y~4) && main_~x~4 == 13)) || ((25 <= main_~y~4 && main_~y~4 <= 25) && main_~x~4 == 25)) || ((main_~x~4 == 9 && main_~y~4 <= 9) && 9 <= main_~y~4)) || (((main_~x~4 <= 76 && main_~y~4 <= 24) && 76 <= main_~x~4) && 24 <= main_~y~4)) || (((16 <= main_~y~4 && main_~x~4 <= 84) && main_~y~4 <= 16) && 84 <= main_~x~4)) || (((main_~x~4 <= 92 && 8 <= main_~y~4) && main_~y~4 <= 8) && 92 <= main_~x~4)) || (((main_~y~4 <= 0 && 0 <= main_~y~4) && main_~x~4 <= 100) && 100 <= main_~x~4)) || (((9 <= main_~y~4 && main_~x~4 <= 91) && main_~y~4 <= 9) && 91 <= main_~x~4)) || (((main_~y~4 <= 30 && main_~x~4 <= 70) && 70 <= main_~x~4) && 30 <= main_~y~4)) || ((32 <= main_~y~4 && main_~x~4 == 32) && main_~y~4 <= 32)) || ((main_~x~4 == 35 && 35 <= main_~y~4) && main_~y~4 <= 35)) || (((13 <= main_~y~4 && main_~y~4 <= 13) && main_~x~4 <= 87) && 87 <= main_~x~4)) || ((39 <= main_~y~4 && main_~y~4 <= 39) && main_~x~4 == 39)) || ((24 <= main_~y~4 && main_~y~4 <= 24) && main_~x~4 == 24)) || ((4 <= main_~y~4 && main_~x~4 == 4) && main_~y~4 <= 4)) || (((79 <= main_~x~4 && 21 <= main_~y~4) && main_~x~4 <= 79) && main_~y~4 <= 21)) || ((5 <= main_~y~4 && main_~y~4 <= 5) && main_~x~4 == 5)) || (((main_~x~4 <= 54 && main_~y~4 <= 46) && 54 <= main_~x~4) && 46 <= main_~y~4)) || ((main_~y~4 <= 15 && main_~x~4 == 15) && 15 <= main_~y~4)) || (((main_~y~4 <= 5 && 95 <= main_~x~4) && 5 <= main_~y~4) && main_~x~4 <= 95)) || (((63 <= main_~x~4 && main_~y~4 <= 37) && main_~x~4 <= 63) && 37 <= main_~y~4)) || ((main_~x~4 == 36 && main_~y~4 <= 36) && 36 <= main_~y~4)) || ((main_~x~4 == 17 && 17 <= main_~y~4) && main_~y~4 <= 17)) || (((main_~y~4 <= 10 && main_~x~4 <= 90) && 10 <= main_~y~4) && 90 <= main_~x~4)) || (((36 <= main_~y~4 && main_~x~4 <= 64) && main_~y~4 <= 36) && 64 <= main_~x~4)) || (((40 <= main_~y~4 && 60 <= main_~x~4) && main_~y~4 <= 40) && main_~x~4 <= 60)) || ((8 <= main_~y~4 && main_~y~4 <= 8) && main_~x~4 == 8)) || (((42 <= main_~y~4 && 58 <= main_~x~4) && main_~y~4 <= 42) && main_~x~4 <= 58)) || ((main_~y~4 <= 38 && main_~x~4 == 38) && 38 <= main_~y~4)) || ((main_~x~4 == 46 && main_~y~4 <= 46) && 46 <= main_~y~4)) || (((main_~y~4 <= 27 && 27 <= main_~y~4) && main_~x~4 <= 73) && 73 <= main_~x~4)) || ((main_~x~4 == 47 && 47 <= main_~y~4) && main_~y~4 <= 47)) || ((48 <= main_~y~4 && main_~x~4 == 48) && main_~y~4 <= 48)) || (((45 <= main_~y~4 && 55 <= main_~x~4) && main_~x~4 <= 55) && main_~y~4 <= 45)) || ((main_~x~4 == 26 && main_~y~4 <= 26) && 26 <= main_~y~4)) || (((99 <= main_~x~4 && main_~x~4 <= 99) && main_~y~4 <= 1) && 1 <= main_~y~4)) || (((14 <= main_~y~4 && 86 <= main_~x~4) && main_~y~4 <= 14) && main_~x~4 <= 86)) || ((main_~x~4 == 29 && main_~y~4 <= 29) && 29 <= main_~y~4)) || (((31 <= main_~y~4 && 69 <= main_~x~4) && main_~x~4 <= 69) && main_~y~4 <= 31)) || ((main_~y~4 <= 27 && main_~x~4 == 27) && 27 <= main_~y~4)) || (((main_~y~4 <= 3 && 97 <= main_~x~4) && 3 <= main_~y~4) && main_~x~4 <= 97)) || ((43 <= main_~y~4 && main_~x~4 == 43) && main_~y~4 <= 43)) || ((main_~y~4 <= 23 && 23 <= main_~y~4) && main_~x~4 == 23)) || ((main_~y~4 <= 10 && 10 <= main_~y~4) && main_~x~4 == 10)) || (((main_~y~4 <= 15 && 15 <= main_~y~4) && 85 <= main_~x~4) && main_~x~4 <= 85)) || (((61 <= main_~x~4 && 39 <= main_~y~4) && main_~x~4 <= 61) && main_~y~4 <= 39)) || ((main_~y~4 <= 1 && 1 <= main_~y~4) && main_~x~4 == 1)) || ((main_~y~4 <= 0 && 0 <= main_~y~4) && main_~x~4 == 0)) || (((38 <= main_~y~4 && main_~x~4 <= 62) && main_~y~4 <= 38) && 62 <= main_~x~4)) || ((main_~y~4 <= 41 && main_~x~4 == 41) && 41 <= main_~y~4)) || (((47 <= main_~y~4 && 53 <= main_~x~4) && main_~x~4 <= 53) && main_~y~4 <= 47)) || (((66 <= main_~x~4 && main_~x~4 <= 66) && main_~y~4 <= 34) && 34 <= main_~y~4)) || ((main_~y~4 <= 42 && main_~x~4 == 42) && 42 <= main_~y~4)) || (((main_~x~4 <= 82 && 82 <= main_~x~4) && main_~y~4 <= 18) && 18 <= main_~y~4)) || (((main_~x~4 <= 50 && main_~y~4 <= 50) && 50 <= main_~x~4) && 50 <= main_~y~4)) || (((main_~x~4 <= 52 && 52 <= main_~x~4) && 48 <= main_~y~4) && main_~y~4 <= 48)) || (((71 <= main_~x~4 && main_~x~4 <= 71) && main_~y~4 <= 29) && 29 <= main_~y~4)) || (((67 <= main_~x~4 && 33 <= main_~y~4) && main_~y~4 <= 33) && main_~x~4 <= 67)) || (((12 <= main_~y~4 && 88 <= main_~x~4) && main_~x~4 <= 88) && main_~y~4 <= 12) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((33 <= main_~y~4 && main_~x~4 == 33) && main_~y~4 <= 33) || ((main_~y~4 <= 44 && 44 <= main_~y~4) && main_~x~4 == 44)) || (((35 <= main_~y~4 && main_~y~4 <= 35) && 65 <= main_~x~4) && main_~x~4 <= 65)) || (((main_~x~4 <= 89 && 89 <= main_~x~4) && 11 <= main_~y~4) && main_~y~4 <= 11)) || ((main_~y~4 <= 11 && 11 <= main_~y~4) && main_~x~4 == 11)) || ((main_~x~4 == 34 && main_~y~4 <= 34) && 34 <= main_~y~4)) || ((main_~y~4 <= 2 && main_~x~4 == 2) && 2 <= main_~y~4)) || ((main_~y~4 <= 22 && main_~x~4 == 22) && 22 <= main_~y~4)) || (((43 <= main_~y~4 && 57 <= main_~x~4) && main_~x~4 <= 57) && main_~y~4 <= 43)) || (((56 <= main_~x~4 && main_~x~4 <= 56) && main_~y~4 <= 44) && 44 <= main_~y~4)) || ((main_~y~4 <= 3 && 3 <= main_~y~4) && main_~x~4 == 3)) || ((main_~x~4 == 16 && 16 <= main_~y~4) && main_~y~4 <= 16)) || ((main_~x~4 == 21 && 21 <= main_~y~4) && main_~y~4 <= 21)) || ((37 <= main_~y~4 && main_~y~4 <= 37) && main_~x~4 == 37)) || ((main_~x~4 == 12 && 12 <= main_~y~4) && main_~y~4 <= 12)) || (((2 <= main_~y~4 && main_~x~4 <= 98) && main_~y~4 <= 2) && 98 <= main_~x~4)) || ((main_~y~4 <= 7 && 7 <= main_~y~4) && main_~x~4 == 7)) || (((main_~x~4 <= 68 && 68 <= main_~x~4) && 32 <= main_~y~4) && main_~y~4 <= 32)) || ((main_~y~4 <= 40 && 40 <= main_~y~4) && main_~x~4 == 40)) || ((main_~x~4 == 30 && main_~y~4 <= 30) && 30 <= main_~y~4)) || (((26 <= main_~y~4 && 74 <= main_~x~4) && main_~y~4 <= 26) && main_~x~4 <= 74)) || (((main_~x~4 <= 81 && 81 <= main_~x~4) && main_~y~4 <= 19) && 19 <= main_~y~4)) || ((main_~x~4 == 6 && 6 <= main_~y~4) && main_~y~4 <= 6)) || (((4 <= main_~y~4 && main_~x~4 <= 96) && 96 <= main_~x~4) && main_~y~4 <= 4)) || (((main_~y~4 <= 7 && main_~x~4 <= 93) && 7 <= main_~y~4) && 93 <= main_~x~4)) || (((main_~y~4 <= 22 && main_~x~4 <= 78) && 78 <= main_~x~4) && 22 <= main_~y~4)) || ((main_~x~4 == 20 && 20 <= main_~y~4) && main_~y~4 <= 20)) || ((14 <= main_~y~4 && main_~x~4 == 14) && main_~y~4 <= 14)) || (((main_~y~4 <= 6 && main_~x~4 <= 94) && 94 <= main_~x~4) && 6 <= main_~y~4)) || (((83 <= main_~x~4 && 17 <= main_~y~4) && main_~y~4 <= 17) && main_~x~4 <= 83)) || ((45 <= main_~y~4 && main_~x~4 == 45) && main_~y~4 <= 45)) || ((18 <= main_~y~4 && main_~y~4 <= 18) && main_~x~4 == 18)) || (((main_~x~4 <= 77 && 23 <= main_~y~4) && 77 <= main_~x~4) && main_~y~4 <= 23)) || (((51 <= main_~x~4 && 49 <= main_~y~4) && main_~y~4 <= 49) && main_~x~4 <= 51)) || ((31 <= main_~y~4 && main_~x~4 == 31) && main_~y~4 <= 31)) || ((main_~y~4 <= 28 && main_~x~4 == 28) && 28 <= main_~y~4)) || (((25 <= main_~y~4 && main_~x~4 <= 75) && 75 <= main_~x~4) && main_~y~4 <= 25)) || (((72 <= main_~x~4 && main_~y~4 <= 28) && main_~x~4 <= 72) && 28 <= main_~y~4)) || ((main_~x~4 == 49 && 49 <= main_~y~4) && main_~y~4 <= 49)) || (((main_~x~4 <= 59 && 41 <= main_~y~4) && main_~y~4 <= 41) && 59 <= main_~x~4)) || ((19 <= main_~y~4 && main_~y~4 <= 19) && main_~x~4 == 19)) || (((20 <= main_~y~4 && main_~x~4 <= 80) && 80 <= main_~x~4) && main_~y~4 <= 20)) || ((main_~y~4 <= 13 && 13 <= main_~y~4) && main_~x~4 == 13)) || ((25 <= main_~y~4 && main_~y~4 <= 25) && main_~x~4 == 25)) || ((main_~x~4 == 9 && main_~y~4 <= 9) && 9 <= main_~y~4)) || (((main_~x~4 <= 76 && main_~y~4 <= 24) && 76 <= main_~x~4) && 24 <= main_~y~4)) || (((16 <= main_~y~4 && main_~x~4 <= 84) && main_~y~4 <= 16) && 84 <= main_~x~4)) || (((main_~x~4 <= 92 && 8 <= main_~y~4) && main_~y~4 <= 8) && 92 <= main_~x~4)) || (((main_~y~4 <= 0 && 0 <= main_~y~4) && main_~x~4 <= 100) && 100 <= main_~x~4)) || (((9 <= main_~y~4 && main_~x~4 <= 91) && main_~y~4 <= 9) && 91 <= main_~x~4)) || (((main_~y~4 <= 30 && main_~x~4 <= 70) && 70 <= main_~x~4) && 30 <= main_~y~4)) || ((32 <= main_~y~4 && main_~x~4 == 32) && main_~y~4 <= 32)) || ((main_~x~4 == 35 && 35 <= main_~y~4) && main_~y~4 <= 35)) || (((13 <= main_~y~4 && main_~y~4 <= 13) && main_~x~4 <= 87) && 87 <= main_~x~4)) || ((39 <= main_~y~4 && main_~y~4 <= 39) && main_~x~4 == 39)) || ((24 <= main_~y~4 && main_~y~4 <= 24) && main_~x~4 == 24)) || ((4 <= main_~y~4 && main_~x~4 == 4) && main_~y~4 <= 4)) || (((79 <= main_~x~4 && 21 <= main_~y~4) && main_~x~4 <= 79) && main_~y~4 <= 21)) || ((5 <= main_~y~4 && main_~y~4 <= 5) && main_~x~4 == 5)) || (((main_~x~4 <= 54 && main_~y~4 <= 46) && 54 <= main_~x~4) && 46 <= main_~y~4)) || ((main_~y~4 <= 15 && main_~x~4 == 15) && 15 <= main_~y~4)) || (((main_~y~4 <= 5 && 95 <= main_~x~4) && 5 <= main_~y~4) && main_~x~4 <= 95)) || (((63 <= main_~x~4 && main_~y~4 <= 37) && main_~x~4 <= 63) && 37 <= main_~y~4)) || ((main_~x~4 == 36 && main_~y~4 <= 36) && 36 <= main_~y~4)) || ((main_~x~4 == 17 && 17 <= main_~y~4) && main_~y~4 <= 17)) || (((main_~y~4 <= 10 && main_~x~4 <= 90) && 10 <= main_~y~4) && 90 <= main_~x~4)) || (((36 <= main_~y~4 && main_~x~4 <= 64) && main_~y~4 <= 36) && 64 <= main_~x~4)) || (((40 <= main_~y~4 && 60 <= main_~x~4) && main_~y~4 <= 40) && main_~x~4 <= 60)) || ((8 <= main_~y~4 && main_~y~4 <= 8) && main_~x~4 == 8)) || (((42 <= main_~y~4 && 58 <= main_~x~4) && main_~y~4 <= 42) && main_~x~4 <= 58)) || ((main_~y~4 <= 38 && main_~x~4 == 38) && 38 <= main_~y~4)) || ((main_~x~4 == 46 && main_~y~4 <= 46) && 46 <= main_~y~4)) || (((main_~y~4 <= 27 && 27 <= main_~y~4) && main_~x~4 <= 73) && 73 <= main_~x~4)) || ((main_~x~4 == 47 && 47 <= main_~y~4) && main_~y~4 <= 47)) || ((48 <= main_~y~4 && main_~x~4 == 48) && main_~y~4 <= 48)) || (((45 <= main_~y~4 && 55 <= main_~x~4) && main_~x~4 <= 55) && main_~y~4 <= 45)) || ((main_~x~4 == 26 && main_~y~4 <= 26) && 26 <= main_~y~4)) || (((99 <= main_~x~4 && main_~x~4 <= 99) && main_~y~4 <= 1) && 1 <= main_~y~4)) || (((14 <= main_~y~4 && 86 <= main_~x~4) && main_~y~4 <= 14) && main_~x~4 <= 86)) || ((main_~x~4 == 29 && main_~y~4 <= 29) && 29 <= main_~y~4)) || (((31 <= main_~y~4 && 69 <= main_~x~4) && main_~x~4 <= 69) && main_~y~4 <= 31)) || ((main_~y~4 <= 27 && main_~x~4 == 27) && 27 <= main_~y~4)) || (((main_~y~4 <= 3 && 97 <= main_~x~4) && 3 <= main_~y~4) && main_~x~4 <= 97)) || ((43 <= main_~y~4 && main_~x~4 == 43) && main_~y~4 <= 43)) || ((main_~y~4 <= 23 && 23 <= main_~y~4) && main_~x~4 == 23)) || ((main_~y~4 <= 10 && 10 <= main_~y~4) && main_~x~4 == 10)) || (((main_~y~4 <= 15 && 15 <= main_~y~4) && 85 <= main_~x~4) && main_~x~4 <= 85)) || (((61 <= main_~x~4 && 39 <= main_~y~4) && main_~x~4 <= 61) && main_~y~4 <= 39)) || ((main_~y~4 <= 1 && 1 <= main_~y~4) && main_~x~4 == 1)) || ((main_~y~4 <= 0 && 0 <= main_~y~4) && main_~x~4 == 0)) || (((38 <= main_~y~4 && main_~x~4 <= 62) && main_~y~4 <= 38) && 62 <= main_~x~4)) || ((main_~y~4 <= 41 && main_~x~4 == 41) && 41 <= main_~y~4)) || (((47 <= main_~y~4 && 53 <= main_~x~4) && main_~x~4 <= 53) && main_~y~4 <= 47)) || (((66 <= main_~x~4 && main_~x~4 <= 66) && main_~y~4 <= 34) && 34 <= main_~y~4)) || ((main_~y~4 <= 42 && main_~x~4 == 42) && 42 <= main_~y~4)) || (((main_~x~4 <= 82 && 82 <= main_~x~4) && main_~y~4 <= 18) && 18 <= main_~y~4)) || (((main_~x~4 <= 50 && main_~y~4 <= 50) && 50 <= main_~x~4) && 50 <= main_~y~4)) || (((main_~x~4 <= 52 && 52 <= main_~x~4) && 48 <= main_~y~4) && main_~y~4 <= 48)) || (((71 <= main_~x~4 && main_~x~4 <= 71) && main_~y~4 <= 29) && 29 <= main_~y~4)) || (((67 <= main_~x~4 && 33 <= main_~y~4) && main_~y~4 <= 33) && main_~x~4 <= 67)) || (((12 <= main_~y~4 && 88 <= main_~x~4) && main_~x~4 <= 88) && main_~y~4 <= 12) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((main_~x~4 == 39 && main_~y~4 <= 40) && 40 <= main_~y~4) || (((main_~y~4 <= 26 && main_~x~4 <= 73) && 73 <= main_~x~4) && 26 <= main_~y~4)) || ((main_~y~4 <= 41 && 41 <= main_~y~4) && main_~x~4 == 40)) || ((5 <= main_~y~4 && main_~y~4 <= 5) && main_~x~4 == 4)) || ((main_~y~4 <= 11 && 11 <= main_~y~4) && main_~x~4 == 10)) || (((56 <= main_~x~4 && 43 <= main_~y~4) && main_~x~4 <= 56) && main_~y~4 <= 43)) || ((main_~y~4 <= 26 && 26 <= main_~y~4) && main_~x~4 == 25)) || (((46 <= main_~y~4 && 53 <= main_~x~4) && main_~x~4 <= 53) && main_~y~4 <= 46)) || (((18 <= main_~y~4 && main_~x~4 <= 81) && 81 <= main_~x~4) && main_~y~4 <= 18)) || ((main_~y~4 <= 15 && main_~x~4 == 14) && 15 <= main_~y~4)) || ((main_~x~4 == 12 && main_~y~4 <= 13) && 13 <= main_~y~4)) || ((main_~x~4 == 28 && main_~y~4 <= 29) && 29 <= main_~y~4)) || ((49 <= main_~y~4 && main_~x~4 == 48) && main_~y~4 <= 49)) || (((main_~y~4 <= 10 && main_~x~4 <= 89) && 89 <= main_~x~4) && 10 <= main_~y~4)) || (((main_~y~4 <= 39 && 60 <= main_~x~4) && 39 <= main_~y~4) && main_~x~4 <= 60)) || (((88 <= main_~x~4 && main_~x~4 <= 88) && main_~y~4 <= 11) && 11 <= main_~y~4)) || (((79 <= main_~x~4 && 20 <= main_~y~4) && main_~x~4 <= 79) && main_~y~4 <= 20)) || ((33 <= main_~y~4 && main_~x~4 == 32) && main_~y~4 <= 33)) || (((main_~x~4 <= 82 && 82 <= main_~x~4) && 17 <= main_~y~4) && main_~y~4 <= 17)) || ((main_~y~4 <= 9 && 9 <= main_~y~4) && main_~x~4 == 8)) || ((main_~x~4 == 5 && 6 <= main_~y~4) && main_~y~4 <= 6)) || ((main_~x~4 == 16 && 17 <= main_~y~4) && main_~y~4 <= 17)) || ((24 <= main_~y~4 && main_~y~4 <= 24) && main_~x~4 == 23)) || (((19 <= main_~y~4 && main_~x~4 <= 80) && main_~y~4 <= 19) && 80 <= main_~x~4)) || (((28 <= main_~y~4 && 71 <= main_~x~4) && main_~x~4 <= 71) && main_~y~4 <= 28)) || (((61 <= main_~x~4 && main_~x~4 <= 61) && main_~y~4 <= 38) && 38 <= main_~y~4)) || (((51 <= main_~x~4 && 48 <= main_~y~4) && main_~y~4 <= 48) && main_~x~4 <= 51)) || ((25 <= main_~y~4 && main_~y~4 <= 25) && main_~x~4 == 24)) || ((19 <= main_~y~4 && main_~y~4 <= 19) && main_~x~4 == 18)) || (((main_~y~4 <= 27 && 72 <= main_~x~4) && 27 <= main_~y~4) && main_~x~4 <= 72)) || ((main_~y~4 <= 1 && main_~x~4 == 0) && 1 <= main_~y~4)) || ((45 <= main_~y~4 && main_~x~4 == 44) && main_~y~4 <= 45)) || (((main_~x~4 <= 90 && main_~y~4 <= 9) && 90 <= main_~x~4) && 9 <= main_~y~4)) || (((main_~x~4 <= 52 && 52 <= main_~x~4) && 47 <= main_~y~4) && main_~y~4 <= 47)) || (((36 <= main_~y~4 && 63 <= main_~x~4) && main_~y~4 <= 36) && main_~x~4 <= 63)) || ((main_~y~4 <= 10 && main_~x~4 == 9) && 10 <= main_~y~4)) || (((34 <= main_~y~4 && main_~y~4 <= 34) && 65 <= main_~x~4) && main_~x~4 <= 65)) || (((5 <= main_~y~4 && main_~y~4 <= 5) && main_~x~4 <= 94) && 94 <= main_~x~4)) || (((main_~y~4 <= 0 && 0 <= main_~y~4) && 99 <= main_~x~4) && main_~x~4 <= 99)) || (((main_~y~4 <= 41 && 41 <= main_~y~4) && 58 <= main_~x~4) && main_~x~4 <= 58)) || ((main_~x~4 == 27 && main_~y~4 <= 28) && 28 <= main_~y~4)) || ((main_~y~4 <= 2 && 2 <= main_~y~4) && main_~x~4 == 1)) || (((4 <= main_~y~4 && 95 <= main_~x~4) && main_~x~4 <= 95) && main_~y~4 <= 4)) || (((main_~y~4 <= 15 && main_~x~4 <= 84) && 84 <= main_~x~4) && 15 <= main_~y~4)) || ((main_~x~4 == 35 && main_~y~4 <= 36) && 36 <= main_~y~4)) || ((main_~x~4 == 34 && 35 <= main_~y~4) && main_~y~4 <= 35)) || ((main_~y~4 <= 38 && main_~x~4 == 37) && 38 <= main_~y~4)) || (((main_~y~4 <= 44 && 55 <= main_~x~4) && main_~x~4 <= 55) && 44 <= main_~y~4)) || ((48 <= main_~y~4 && main_~x~4 == 47) && main_~y~4 <= 48)) || ((20 <= main_~y~4 && main_~y~4 <= 20) && main_~x~4 == 19)) || (((12 <= main_~y~4 && main_~x~4 <= 87) && main_~y~4 <= 12) && 87 <= main_~x~4)) || ((main_~y~4 <= 22 && main_~x~4 == 21) && 22 <= main_~y~4)) || (((31 <= main_~y~4 && main_~x~4 <= 68) && 68 <= main_~x~4) && main_~y~4 <= 31)) || (((main_~x~4 <= 50 && 50 <= main_~x~4) && main_~y~4 <= 49) && 49 <= main_~y~4)) || (((main_~y~4 <= 13 && 13 <= main_~y~4) && 86 <= main_~x~4) && main_~x~4 <= 86)) || ((main_~x~4 == 20 && 21 <= main_~y~4) && main_~y~4 <= 21)) || (((main_~y~4 <= 2 && 97 <= main_~x~4) && 2 <= main_~y~4) && main_~x~4 <= 97)) || (((14 <= main_~y~4 && main_~y~4 <= 14) && 85 <= main_~x~4) && main_~x~4 <= 85)) || (((main_~y~4 <= 7 && main_~x~4 <= 92) && 7 <= main_~y~4) && 92 <= main_~x~4)) || ((main_~y~4 <= 42 && 42 <= main_~y~4) && main_~x~4 == 41)) || ((4 <= main_~y~4 && main_~x~4 == 3) && main_~y~4 <= 4)) || (((main_~y~4 <= 42 && 42 <= main_~y~4) && 57 <= main_~x~4) && main_~x~4 <= 57)) || ((47 <= main_~y~4 && main_~x~4 == 46) && main_~y~4 <= 47)) || ((main_~y~4 <= 50 && main_~x~4 == 49) && 50 <= main_~y~4)) || ((main_~y~4 <= 30 && main_~x~4 == 29) && 30 <= main_~y~4)) || ((18 <= main_~y~4 && main_~x~4 == 17) && main_~y~4 <= 18)) || (((33 <= main_~y~4 && 66 <= main_~x~4) && main_~x~4 <= 66) && main_~y~4 <= 33)) || ((39 <= main_~y~4 && main_~y~4 <= 39) && main_~x~4 == 38)) || ((main_~x~4 == 7 && 8 <= main_~y~4) && main_~y~4 <= 8)) || ((main_~y~4 <= 46 && main_~x~4 == 45) && 46 <= main_~y~4)) || ((main_~x~4 == 15 && 16 <= main_~y~4) && main_~y~4 <= 16)) || ((main_~x~4 == 26 && main_~y~4 <= 27) && 27 <= main_~y~4)) || ((main_~x~4 == 33 && main_~y~4 <= 34) && 34 <= main_~y~4)) || ((main_~y~4 <= 7 && main_~x~4 == 6) && 7 <= main_~y~4)) || (((main_~y~4 <= 30 && 30 <= main_~y~4) && 69 <= main_~x~4) && main_~x~4 <= 69)) || ((37 <= main_~y~4 && main_~x~4 == 36) && main_~y~4 <= 37)) || ((main_~y~4 + 1 <= 0 && main_~x~4 <= 100) && 100 <= main_~x~4)) || ((main_~x~4 == 30 && 31 <= main_~y~4) && main_~y~4 <= 31)) || (((main_~x~4 <= 77 && main_~y~4 <= 22) && 77 <= main_~x~4) && 22 <= main_~y~4)) || (((main_~x~4 <= 98 && 98 <= main_~x~4) && main_~y~4 <= 1) && 1 <= main_~y~4)) || (((6 <= main_~y~4 && main_~y~4 <= 6) && main_~x~4 <= 93) && 93 <= main_~x~4)) || (((main_~x~4 <= 76 && main_~y~4 <= 23) && 23 <= main_~y~4) && 76 <= main_~x~4)) || (((main_~x~4 <= 78 && 21 <= main_~y~4) && 78 <= main_~x~4) && main_~y~4 <= 21)) || ((main_~x~4 == 43 && main_~y~4 <= 44) && 44 <= main_~y~4)) || (((83 <= main_~x~4 && 16 <= main_~y~4) && main_~y~4 <= 16) && main_~x~4 <= 83)) || ((12 <= main_~y~4 && main_~y~4 <= 12) && main_~x~4 == 11)) || (((main_~x~4 <= 54 && 45 <= main_~y~4) && 54 <= main_~x~4) && main_~y~4 <= 45)) || (((29 <= main_~y~4 && main_~x~4 <= 70) && 70 <= main_~x~4) && main_~y~4 <= 29)) || (((main_~x~4 <= 64 && 64 <= main_~x~4) && main_~y~4 <= 35) && 35 <= main_~y~4)) || ((main_~y~4 <= 23 && 23 <= main_~y~4) && main_~x~4 == 22)) || ((14 <= main_~y~4 && main_~x~4 == 13) && main_~y~4 <= 14)) || (((main_~x~4 <= 62 && main_~y~4 <= 37) && 37 <= main_~y~4) && 62 <= main_~x~4)) || ((main_~y~4 <= 3 && main_~x~4 == 2) && 3 <= main_~y~4)) || (((74 <= main_~x~4 && 25 <= main_~y~4) && main_~y~4 <= 25) && main_~x~4 <= 74)) || ((32 <= main_~y~4 && main_~x~4 == 31) && main_~y~4 <= 32)) || (((40 <= main_~y~4 && main_~x~4 <= 59) && main_~y~4 <= 40) && 59 <= main_~x~4)) || (((main_~x~4 <= 91 && 8 <= main_~y~4) && 91 <= main_~x~4) && main_~y~4 <= 8)) || (((main_~x~4 <= 75 && 24 <= main_~y~4) && 75 <= main_~x~4) && main_~y~4 <= 24)) || ((43 <= main_~y~4 && main_~x~4 == 42) && main_~y~4 <= 43)) || (((67 <= main_~x~4 && 32 <= main_~y~4) && main_~y~4 <= 32) && main_~x~4 <= 67)) || (((main_~y~4 <= 3 && 3 <= main_~y~4) && main_~x~4 <= 96) && 96 <= main_~x~4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. SAFE Result, 132.7s OverallTime, 33 OverallIterations, 102 TraceHistogramMax, 39.0s AutomataDifference, 0.0s DeadEndRemovalTime, 45.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 425 SDtfs, 776 SDslu, 13119 SDs, 0 SdLazy, 24716 SolverSat, 1648 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4424 GetRequests, 3372 SyntacticMatches, 1 SemanticMatches, 1051 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7423 ImplicationChecksByTransitivity, 33.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4183occurred in iteration=32, 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: 11.2s AutomataMinimizationTime, 33 MinimizatonAttempts, 2602 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 307 NumberOfFragments, 3492 HoareAnnotationTreeSize, 4 FomulaSimplifications, 149626526198 FormulaSimplificationTreeSizeReduction, 12.5s HoareSimplificationTime, 4 FomulaSimplificationsInter, 5536186731 FormulaSimplificationTreeSizeReductionInter, 32.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 32.1s InterpolantComputationTime, 6902 NumberOfCodeBlocks, 6878 NumberOfCodeBlocksAsserted, 624 NumberOfCheckSat, 6838 ConstructedInterpolants, 0 QuantifiedInterpolants, 3386912 SizeOfPredicates, 33 NumberOfNonLiveVariables, 8181 ConjunctsInSsa, 1019 ConjunctsInUnsatCore, 64 InterpolantComputations, 2 PerfectInterpolantSequences, 106538/193722 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/gr2006.c.i_4.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_21-23-51-790.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gr2006.c.i_4.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_21-23-51-790.csv Received shutdown request...