java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/loop-acceleration/array3_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-408c70d-m [2018-04-13 15:42:48,564 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-13 15:42:48,565 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-13 15:42:48,578 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-13 15:42:48,578 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-13 15:42:48,579 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-13 15:42:48,580 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-13 15:42:48,582 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-13 15:42:48,583 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-13 15:42:48,584 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-13 15:42:48,585 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-13 15:42:48,585 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-13 15:42:48,586 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-13 15:42:48,587 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-13 15:42:48,587 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-13 15:42:48,589 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-13 15:42:48,591 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-13 15:42:48,592 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-13 15:42:48,593 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-13 15:42:48,594 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-13 15:42:48,596 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-13 15:42:48,596 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-13 15:42:48,596 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-13 15:42:48,597 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-13 15:42:48,598 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-13 15:42:48,599 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-13 15:42:48,599 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-13 15:42:48,600 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-13 15:42:48,601 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-13 15:42:48,601 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-13 15:42:48,601 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-13 15:42:48,602 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-04-13 15:42:48,613 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-13 15:42:48,613 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-13 15:42:48,614 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-13 15:42:48,614 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-13 15:42:48,614 INFO L133 SettingsManager]: * Use SBE=true [2018-04-13 15:42:48,615 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-13 15:42:48,615 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-13 15:42:48,615 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-13 15:42:48,615 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-13 15:42:48,615 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-13 15:42:48,615 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-13 15:42:48,615 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-13 15:42:48,616 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-13 15:42:48,616 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-13 15:42:48,616 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-13 15:42:48,616 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-13 15:42:48,616 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-13 15:42:48,616 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-13 15:42:48,617 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-13 15:42:48,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 15:42:48,617 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-13 15:42:48,617 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-04-13 15:42:48,617 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-04-13 15:42:48,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-13 15:42:48,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-13 15:42:48,657 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-13 15:42:48,662 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-13 15:42:48,663 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-13 15:42:48,663 INFO L276 PluginConnector]: CDTParser initialized [2018-04-13 15:42:48,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array3_false-valid-deref.i [2018-04-13 15:42:49,035 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG50e962851 [2018-04-13 15:42:49,126 INFO L287 CDTParser]: IsIndexed: true [2018-04-13 15:42:49,126 INFO L288 CDTParser]: Found 1 translation units. [2018-04-13 15:42:49,127 INFO L168 CDTParser]: Scanning array3_false-valid-deref.i [2018-04-13 15:42:49,128 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-13 15:42:49,128 INFO L215 ultiparseSymbolTable]: [2018-04-13 15:42:49,128 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-13 15:42:49,128 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert ('__VERIFIER_assert') in array3_false-valid-deref.i [2018-04-13 15:42:49,128 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in array3_false-valid-deref.i [2018-04-13 15:42:49,128 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-13 15:42:49,128 INFO L233 ultiparseSymbolTable]: [2018-04-13 15:42:49,141 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG50e962851 [2018-04-13 15:42:49,144 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-13 15:42:49,145 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-13 15:42:49,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-13 15:42:49,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-13 15:42:49,149 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-13 15:42:49,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 03:42:49" (1/1) ... [2018-04-13 15:42:49,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5804a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:42:49, skipping insertion in model container [2018-04-13 15:42:49,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 03:42:49" (1/1) ... [2018-04-13 15:42:49,165 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 15:42:49,174 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 15:42:49,281 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 15:42:49,294 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 15:42:49,298 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 6 non ball SCCs. Number of states in SCCs 6. [2018-04-13 15:42:49,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:42:49 WrapperNode [2018-04-13 15:42:49,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-13 15:42:49,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-13 15:42:49,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-13 15:42:49,303 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-13 15:42:49,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:42:49" (1/1) ... [2018-04-13 15:42:49,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:42:49" (1/1) ... [2018-04-13 15:42:49,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:42:49" (1/1) ... [2018-04-13 15:42:49,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:42:49" (1/1) ... [2018-04-13 15:42:49,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:42:49" (1/1) ... [2018-04-13 15:42:49,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:42:49" (1/1) ... [2018-04-13 15:42:49,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:42:49" (1/1) ... [2018-04-13 15:42:49,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-13 15:42:49,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-13 15:42:49,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-13 15:42:49,323 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-13 15:42:49,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:42:49" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-04-13 15:42:49,362 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-13 15:42:49,362 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-13 15:42:49,362 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert [2018-04-13 15:42:49,362 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-13 15:42:49,362 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-13 15:42:49,363 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-13 15:42:49,363 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert [2018-04-13 15:42:49,363 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-13 15:42:49,363 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-13 15:42:49,363 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-13 15:42:49,523 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-13 15:42:49,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 03:42:49 BoogieIcfgContainer [2018-04-13 15:42:49,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-13 15:42:49,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-13 15:42:49,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-13 15:42:49,525 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-13 15:42:49,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 03:42:49" (1/3) ... [2018-04-13 15:42:49,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be35b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 03:42:49, skipping insertion in model container [2018-04-13 15:42:49,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:42:49" (2/3) ... [2018-04-13 15:42:49,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be35b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 03:42:49, skipping insertion in model container [2018-04-13 15:42:49,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 03:42:49" (3/3) ... [2018-04-13 15:42:49,528 INFO L107 eAbstractionObserver]: Analyzing ICFG array3_false-valid-deref.i [2018-04-13 15:42:49,536 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-13 15:42:49,542 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-04-13 15:42:49,566 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-13 15:42:49,567 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-13 15:42:49,567 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-13 15:42:49,567 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-04-13 15:42:49,567 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-13 15:42:49,567 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-13 15:42:49,567 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-13 15:42:49,568 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-13 15:42:49,568 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-13 15:42:49,568 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-13 15:42:49,580 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-04-13 15:42:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-13 15:42:49,588 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:49,589 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:49,589 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:49,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1214141712, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:49,600 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:49,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:49,665 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 15:42:49,666 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-13 15:42:49,666 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:49,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:49,667 INFO L182 omatonBuilderFactory]: Interpolants [34#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 30#true, 31#false] [2018-04-13 15:42:49,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:49,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-13 15:42:49,675 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-13 15:42:49,676 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-13 15:42:49,677 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2018-04-13 15:42:49,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:49,721 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2018-04-13 15:42:49,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-13 15:42:49,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-04-13 15:42:49,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:49,731 INFO L225 Difference]: With dead ends: 32 [2018-04-13 15:42:49,731 INFO L226 Difference]: Without dead ends: 22 [2018-04-13 15:42:49,732 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-13 15:42:49,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-04-13 15:42:49,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-04-13 15:42:49,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-04-13 15:42:49,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-04-13 15:42:49,752 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 8 [2018-04-13 15:42:49,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:49,752 INFO L459 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-04-13 15:42:49,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-13 15:42:49,752 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-04-13 15:42:49,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-04-13 15:42:49,752 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:49,752 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:49,752 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:49,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1742212855, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:49,755 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:49,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:49,788 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:49,789 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-04-13 15:42:49,789 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:49,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:49,789 INFO L182 omatonBuilderFactory]: Interpolants [89#true, 90#false, 93#(= main_~i~0 0), 94#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:42:49,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:49,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-13 15:42:49,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-13 15:42:49,791 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-13 15:42:49,791 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 4 states. [2018-04-13 15:42:49,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:49,849 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-04-13 15:42:49,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-13 15:42:49,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-04-13 15:42:49,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:49,850 INFO L225 Difference]: With dead ends: 31 [2018-04-13 15:42:49,850 INFO L226 Difference]: Without dead ends: 31 [2018-04-13 15:42:49,851 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-13 15:42:49,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-04-13 15:42:49,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-04-13 15:42:49,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-04-13 15:42:49,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-04-13 15:42:49,855 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 12 [2018-04-13 15:42:49,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:49,855 INFO L459 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-04-13 15:42:49,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-13 15:42:49,855 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-04-13 15:42:49,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-13 15:42:49,856 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:49,856 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:49,856 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:49,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1902176386, now seen corresponding path program 2 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:49,861 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:49,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:49,914 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:49,914 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-04-13 15:42:49,914 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:49,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:49,915 INFO L182 omatonBuilderFactory]: Interpolants [161#(= main_~i~0 0), 162#(= main_~i~0 1), 163#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 157#true, 158#false] [2018-04-13 15:42:49,915 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:49,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 15:42:49,915 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 15:42:49,916 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-13 15:42:49,916 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2018-04-13 15:42:49,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:49,967 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-04-13 15:42:49,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-13 15:42:49,967 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-04-13 15:42:49,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:49,968 INFO L225 Difference]: With dead ends: 40 [2018-04-13 15:42:49,968 INFO L226 Difference]: Without dead ends: 40 [2018-04-13 15:42:49,968 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-13 15:42:49,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-13 15:42:49,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-13 15:42:49,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-13 15:42:49,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-04-13 15:42:49,971 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 16 [2018-04-13 15:42:49,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:49,972 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-04-13 15:42:49,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 15:42:49,972 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-04-13 15:42:49,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-13 15:42:49,972 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:49,972 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:49,972 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:49,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1913685125, now seen corresponding path program 3 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:49,976 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:50,022 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,053 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:50,053 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-04-13 15:42:50,053 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:50,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,054 INFO L182 omatonBuilderFactory]: Interpolants [244#true, 245#false, 248#(= main_~i~0 0), 249#(= main_~i~0 1), 250#(= main_~i~0 2), 251#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:42:50,054 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-13 15:42:50,054 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-13 15:42:50,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-04-13 15:42:50,056 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 6 states. [2018-04-13 15:42:50,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:50,149 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2018-04-13 15:42:50,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 15:42:50,150 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-04-13 15:42:50,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:50,151 INFO L225 Difference]: With dead ends: 49 [2018-04-13 15:42:50,151 INFO L226 Difference]: Without dead ends: 49 [2018-04-13 15:42:50,151 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-04-13 15:42:50,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-13 15:42:50,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-04-13 15:42:50,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-13 15:42:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2018-04-13 15:42:50,157 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 20 [2018-04-13 15:42:50,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:50,158 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2018-04-13 15:42:50,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-13 15:42:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2018-04-13 15:42:50,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-13 15:42:50,158 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:50,159 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:50,159 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:50,159 INFO L82 PathProgramCache]: Analyzing trace with hash -895882764, now seen corresponding path program 4 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:50,162 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:50,193 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,212 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:50,212 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-04-13 15:42:50,212 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,212 INFO L182 omatonBuilderFactory]: Interpolants [354#(= main_~i~0 0), 355#(= main_~i~0 1), 356#(= main_~i~0 2), 357#(= main_~i~0 3), 358#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 350#true, 351#false] [2018-04-13 15:42:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-13 15:42:50,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-13 15:42:50,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-13 15:42:50,213 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 7 states. [2018-04-13 15:42:50,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:50,305 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2018-04-13 15:42:50,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-13 15:42:50,306 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-04-13 15:42:50,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:50,306 INFO L225 Difference]: With dead ends: 58 [2018-04-13 15:42:50,306 INFO L226 Difference]: Without dead ends: 58 [2018-04-13 15:42:50,306 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-13 15:42:50,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-04-13 15:42:50,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-04-13 15:42:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-13 15:42:50,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2018-04-13 15:42:50,312 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 24 [2018-04-13 15:42:50,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:50,312 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2018-04-13 15:42:50,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-13 15:42:50,312 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2018-04-13 15:42:50,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-13 15:42:50,312 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:50,312 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:50,312 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:50,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1224313875, now seen corresponding path program 5 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:50,315 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,388 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:50,388 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-04-13 15:42:50,389 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:50,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,389 INFO L182 omatonBuilderFactory]: Interpolants [480#(= main_~i~0 1), 481#(= main_~i~0 2), 482#(= main_~i~0 3), 483#(= main_~i~0 4), 484#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 475#true, 476#false, 479#(= main_~i~0 0)] [2018-04-13 15:42:50,389 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-13 15:42:50,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-13 15:42:50,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-04-13 15:42:50,390 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 8 states. [2018-04-13 15:42:50,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:50,530 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2018-04-13 15:42:50,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-13 15:42:50,531 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-04-13 15:42:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:50,531 INFO L225 Difference]: With dead ends: 67 [2018-04-13 15:42:50,531 INFO L226 Difference]: Without dead ends: 67 [2018-04-13 15:42:50,532 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-04-13 15:42:50,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-13 15:42:50,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-04-13 15:42:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-13 15:42:50,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2018-04-13 15:42:50,536 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 28 [2018-04-13 15:42:50,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:50,537 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2018-04-13 15:42:50,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-13 15:42:50,537 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2018-04-13 15:42:50,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-13 15:42:50,537 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:50,538 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:50,538 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:50,538 INFO L82 PathProgramCache]: Analyzing trace with hash 633035110, now seen corresponding path program 6 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:50,542 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,613 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:50,613 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-04-13 15:42:50,613 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:50,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,613 INFO L182 omatonBuilderFactory]: Interpolants [624#(= main_~i~0 1), 625#(= main_~i~0 2), 626#(= main_~i~0 3), 627#(= main_~i~0 4), 628#(= main_~i~0 5), 629#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 619#true, 620#false, 623#(= main_~i~0 0)] [2018-04-13 15:42:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-13 15:42:50,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-13 15:42:50,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-04-13 15:42:50,615 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand 9 states. [2018-04-13 15:42:50,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:50,779 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2018-04-13 15:42:50,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-13 15:42:50,779 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-04-13 15:42:50,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:50,780 INFO L225 Difference]: With dead ends: 76 [2018-04-13 15:42:50,780 INFO L226 Difference]: Without dead ends: 76 [2018-04-13 15:42:50,781 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-04-13 15:42:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-04-13 15:42:50,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-04-13 15:42:50,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-13 15:42:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2018-04-13 15:42:50,786 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 32 [2018-04-13 15:42:50,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:50,786 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2018-04-13 15:42:50,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-13 15:42:50,787 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2018-04-13 15:42:50,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-13 15:42:50,787 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:50,788 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:50,788 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:50,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1138828705, now seen corresponding path program 7 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:50,796 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,859 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:50,859 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-13 15:42:50,859 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,860 INFO L182 omatonBuilderFactory]: Interpolants [786#(= main_~i~0 0), 787#(= main_~i~0 1), 788#(= main_~i~0 2), 789#(= main_~i~0 3), 790#(= main_~i~0 4), 791#(= main_~i~0 5), 792#(= main_~i~0 6), 793#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 782#true, 783#false] [2018-04-13 15:42:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:50,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-13 15:42:50,860 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-13 15:42:50,861 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-04-13 15:42:50,861 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand 10 states. [2018-04-13 15:42:50,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:50,985 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2018-04-13 15:42:50,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-13 15:42:50,985 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2018-04-13 15:42:50,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:50,986 INFO L225 Difference]: With dead ends: 85 [2018-04-13 15:42:50,986 INFO L226 Difference]: Without dead ends: 85 [2018-04-13 15:42:50,987 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-04-13 15:42:50,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-13 15:42:50,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-04-13 15:42:50,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-13 15:42:50,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 86 transitions. [2018-04-13 15:42:50,991 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 86 transitions. Word has length 36 [2018-04-13 15:42:50,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:50,991 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 86 transitions. [2018-04-13 15:42:50,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-13 15:42:50,991 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 86 transitions. [2018-04-13 15:42:50,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-13 15:42:50,992 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:50,992 INFO L355 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:50,992 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:50,992 INFO L82 PathProgramCache]: Analyzing trace with hash -2106116392, now seen corresponding path program 8 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:50,994 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:51,036 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,053 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:51,053 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-04-13 15:42:51,053 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:51,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,054 INFO L182 omatonBuilderFactory]: Interpolants [976#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 964#true, 965#false, 968#(= main_~i~0 0), 969#(= main_~i~0 1), 970#(= main_~i~0 2), 971#(= main_~i~0 3), 972#(= main_~i~0 4), 973#(= main_~i~0 5), 974#(= main_~i~0 6), 975#(= main_~i~0 7)] [2018-04-13 15:42:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-13 15:42:51,054 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-13 15:42:51,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-04-13 15:42:51,054 INFO L87 Difference]: Start difference. First operand 85 states and 86 transitions. Second operand 11 states. [2018-04-13 15:42:51,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:51,210 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2018-04-13 15:42:51,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-13 15:42:51,210 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2018-04-13 15:42:51,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:51,210 INFO L225 Difference]: With dead ends: 94 [2018-04-13 15:42:51,211 INFO L226 Difference]: Without dead ends: 94 [2018-04-13 15:42:51,211 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-04-13 15:42:51,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-04-13 15:42:51,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-04-13 15:42:51,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-04-13 15:42:51,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2018-04-13 15:42:51,215 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 40 [2018-04-13 15:42:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:51,216 INFO L459 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2018-04-13 15:42:51,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-13 15:42:51,216 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2018-04-13 15:42:51,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-13 15:42:51,217 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:51,217 INFO L355 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:51,217 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:51,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1944760017, now seen corresponding path program 9 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:51,223 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,290 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:51,290 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-13 15:42:51,291 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,291 INFO L182 omatonBuilderFactory]: Interpolants [1169#(= main_~i~0 0), 1170#(= main_~i~0 1), 1171#(= main_~i~0 2), 1172#(= main_~i~0 3), 1173#(= main_~i~0 4), 1174#(= main_~i~0 5), 1175#(= main_~i~0 6), 1176#(= main_~i~0 7), 1177#(= main_~i~0 8), 1178#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 1165#true, 1166#false] [2018-04-13 15:42:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-13 15:42:51,291 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-13 15:42:51,291 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-04-13 15:42:51,292 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand 12 states. [2018-04-13 15:42:51,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:51,459 INFO L93 Difference]: Finished difference Result 103 states and 104 transitions. [2018-04-13 15:42:51,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-13 15:42:51,459 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2018-04-13 15:42:51,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:51,460 INFO L225 Difference]: With dead ends: 103 [2018-04-13 15:42:51,460 INFO L226 Difference]: Without dead ends: 103 [2018-04-13 15:42:51,460 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-04-13 15:42:51,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-04-13 15:42:51,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-04-13 15:42:51,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-04-13 15:42:51,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 104 transitions. [2018-04-13 15:42:51,463 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 104 transitions. Word has length 44 [2018-04-13 15:42:51,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:51,463 INFO L459 AbstractCegarLoop]: Abstraction has 103 states and 104 transitions. [2018-04-13 15:42:51,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-13 15:42:51,464 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 104 transitions. [2018-04-13 15:42:51,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-13 15:42:51,464 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:51,464 INFO L355 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:51,464 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:51,464 INFO L82 PathProgramCache]: Analyzing trace with hash 243237450, now seen corresponding path program 10 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:51,466 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,530 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:51,530 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-13 15:42:51,530 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:51,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,531 INFO L182 omatonBuilderFactory]: Interpolants [1385#true, 1386#false, 1389#(= main_~i~0 0), 1390#(= main_~i~0 1), 1391#(= main_~i~0 2), 1392#(= main_~i~0 3), 1393#(= main_~i~0 4), 1394#(= main_~i~0 5), 1395#(= main_~i~0 6), 1396#(= main_~i~0 7), 1397#(= main_~i~0 8), 1398#(= main_~i~0 9), 1399#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:42:51,531 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-13 15:42:51,531 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-13 15:42:51,531 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-04-13 15:42:51,532 INFO L87 Difference]: Start difference. First operand 103 states and 104 transitions. Second operand 13 states. [2018-04-13 15:42:51,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:51,826 INFO L93 Difference]: Finished difference Result 112 states and 113 transitions. [2018-04-13 15:42:51,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-13 15:42:51,826 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2018-04-13 15:42:51,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:51,826 INFO L225 Difference]: With dead ends: 112 [2018-04-13 15:42:51,827 INFO L226 Difference]: Without dead ends: 112 [2018-04-13 15:42:51,827 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-04-13 15:42:51,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-04-13 15:42:51,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-04-13 15:42:51,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-13 15:42:51,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 113 transitions. [2018-04-13 15:42:51,831 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 113 transitions. Word has length 48 [2018-04-13 15:42:51,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:51,831 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 113 transitions. [2018-04-13 15:42:51,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-13 15:42:51,832 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 113 transitions. [2018-04-13 15:42:51,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-13 15:42:51,832 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:51,832 INFO L355 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:51,832 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:51,833 INFO L82 PathProgramCache]: Analyzing trace with hash -484708029, now seen corresponding path program 11 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:51,837 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:51,929 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,948 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:51,948 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-04-13 15:42:51,948 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:51,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,948 INFO L182 omatonBuilderFactory]: Interpolants [1632#(= main_~i~0 4), 1633#(= main_~i~0 5), 1634#(= main_~i~0 6), 1635#(= main_~i~0 7), 1636#(= main_~i~0 8), 1637#(= main_~i~0 9), 1638#(= main_~i~0 10), 1639#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 1624#true, 1625#false, 1628#(= main_~i~0 0), 1629#(= main_~i~0 1), 1630#(= main_~i~0 2), 1631#(= main_~i~0 3)] [2018-04-13 15:42:51,948 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:51,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-13 15:42:51,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-13 15:42:51,949 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2018-04-13 15:42:51,949 INFO L87 Difference]: Start difference. First operand 112 states and 113 transitions. Second operand 14 states. [2018-04-13 15:42:52,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:52,301 INFO L93 Difference]: Finished difference Result 121 states and 122 transitions. [2018-04-13 15:42:52,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-13 15:42:52,302 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 52 [2018-04-13 15:42:52,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:52,302 INFO L225 Difference]: With dead ends: 121 [2018-04-13 15:42:52,303 INFO L226 Difference]: Without dead ends: 121 [2018-04-13 15:42:52,303 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2018-04-13 15:42:52,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-04-13 15:42:52,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-04-13 15:42:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-04-13 15:42:52,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 122 transitions. [2018-04-13 15:42:52,307 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 122 transitions. Word has length 52 [2018-04-13 15:42:52,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:52,308 INFO L459 AbstractCegarLoop]: Abstraction has 121 states and 122 transitions. [2018-04-13 15:42:52,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-13 15:42:52,308 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 122 transitions. [2018-04-13 15:42:52,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-04-13 15:42:52,309 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:52,309 INFO L355 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:52,309 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:52,309 INFO L82 PathProgramCache]: Analyzing trace with hash 629554108, now seen corresponding path program 12 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:52,321 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:52,412 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:52,439 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:52,440 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-13 15:42:52,440 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:52,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:52,440 INFO L182 omatonBuilderFactory]: Interpolants [1888#(= main_~i~0 2), 1889#(= main_~i~0 3), 1890#(= main_~i~0 4), 1891#(= main_~i~0 5), 1892#(= main_~i~0 6), 1893#(= main_~i~0 7), 1894#(= main_~i~0 8), 1895#(= main_~i~0 9), 1896#(= main_~i~0 10), 1897#(= main_~i~0 11), 1898#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 1882#true, 1883#false, 1886#(= main_~i~0 0), 1887#(= main_~i~0 1)] [2018-04-13 15:42:52,440 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:52,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-13 15:42:52,441 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-13 15:42:52,441 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-04-13 15:42:52,441 INFO L87 Difference]: Start difference. First operand 121 states and 122 transitions. Second operand 15 states. [2018-04-13 15:42:52,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:52,828 INFO L93 Difference]: Finished difference Result 130 states and 131 transitions. [2018-04-13 15:42:52,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-13 15:42:52,829 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2018-04-13 15:42:52,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:52,829 INFO L225 Difference]: With dead ends: 130 [2018-04-13 15:42:52,830 INFO L226 Difference]: Without dead ends: 130 [2018-04-13 15:42:52,830 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-04-13 15:42:52,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-04-13 15:42:52,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-04-13 15:42:52,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-04-13 15:42:52,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 131 transitions. [2018-04-13 15:42:52,832 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 131 transitions. Word has length 56 [2018-04-13 15:42:52,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:52,833 INFO L459 AbstractCegarLoop]: Abstraction has 130 states and 131 transitions. [2018-04-13 15:42:52,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-13 15:42:52,833 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 131 transitions. [2018-04-13 15:42:52,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-13 15:42:52,833 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:52,833 INFO L355 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:52,833 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:52,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1013227957, now seen corresponding path program 13 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:52,840 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:52,913 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:52,930 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:52,930 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-13 15:42:52,930 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:52,931 INFO L182 omatonBuilderFactory]: Interpolants [2176#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 2159#true, 2160#false, 2163#(= main_~i~0 0), 2164#(= main_~i~0 1), 2165#(= main_~i~0 2), 2166#(= main_~i~0 3), 2167#(= main_~i~0 4), 2168#(= main_~i~0 5), 2169#(= main_~i~0 6), 2170#(= main_~i~0 7), 2171#(= main_~i~0 8), 2172#(= main_~i~0 9), 2173#(= main_~i~0 10), 2174#(= main_~i~0 11), 2175#(= main_~i~0 12)] [2018-04-13 15:42:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:52,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-13 15:42:52,931 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-13 15:42:52,931 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2018-04-13 15:42:52,931 INFO L87 Difference]: Start difference. First operand 130 states and 131 transitions. Second operand 16 states. [2018-04-13 15:42:53,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:53,205 INFO L93 Difference]: Finished difference Result 139 states and 140 transitions. [2018-04-13 15:42:53,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-13 15:42:53,205 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 60 [2018-04-13 15:42:53,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:53,205 INFO L225 Difference]: With dead ends: 139 [2018-04-13 15:42:53,206 INFO L226 Difference]: Without dead ends: 139 [2018-04-13 15:42:53,206 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2018-04-13 15:42:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-04-13 15:42:53,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-04-13 15:42:53,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-04-13 15:42:53,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 140 transitions. [2018-04-13 15:42:53,209 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 140 transitions. Word has length 60 [2018-04-13 15:42:53,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:53,209 INFO L459 AbstractCegarLoop]: Abstraction has 139 states and 140 transitions. [2018-04-13 15:42:53,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-13 15:42:53,209 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 140 transitions. [2018-04-13 15:42:53,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-13 15:42:53,210 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:53,210 INFO L355 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:53,210 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:53,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1362977582, now seen corresponding path program 14 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:53,212 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:53,286 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:53,303 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:53,303 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-13 15:42:53,303 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:53,303 INFO L182 omatonBuilderFactory]: Interpolants [2464#(= main_~i~0 5), 2465#(= main_~i~0 6), 2466#(= main_~i~0 7), 2467#(= main_~i~0 8), 2468#(= main_~i~0 9), 2469#(= main_~i~0 10), 2470#(= main_~i~0 11), 2471#(= main_~i~0 12), 2472#(= main_~i~0 13), 2473#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 2455#true, 2456#false, 2459#(= main_~i~0 0), 2460#(= main_~i~0 1), 2461#(= main_~i~0 2), 2462#(= main_~i~0 3), 2463#(= main_~i~0 4)] [2018-04-13 15:42:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:53,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-13 15:42:53,304 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-13 15:42:53,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-04-13 15:42:53,304 INFO L87 Difference]: Start difference. First operand 139 states and 140 transitions. Second operand 17 states. [2018-04-13 15:42:53,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:53,629 INFO L93 Difference]: Finished difference Result 148 states and 149 transitions. [2018-04-13 15:42:53,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-13 15:42:53,629 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 64 [2018-04-13 15:42:53,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:53,629 INFO L225 Difference]: With dead ends: 148 [2018-04-13 15:42:53,629 INFO L226 Difference]: Without dead ends: 148 [2018-04-13 15:42:53,630 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-04-13 15:42:53,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-04-13 15:42:53,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-04-13 15:42:53,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-04-13 15:42:53,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 149 transitions. [2018-04-13 15:42:53,631 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 149 transitions. Word has length 64 [2018-04-13 15:42:53,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:53,631 INFO L459 AbstractCegarLoop]: Abstraction has 148 states and 149 transitions. [2018-04-13 15:42:53,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-13 15:42:53,632 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 149 transitions. [2018-04-13 15:42:53,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-13 15:42:53,632 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:53,632 INFO L355 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:53,632 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:53,632 INFO L82 PathProgramCache]: Analyzing trace with hash -529088473, now seen corresponding path program 15 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:53,635 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:53,771 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:53,789 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:53,789 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-13 15:42:53,789 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:53,790 INFO L182 omatonBuilderFactory]: Interpolants [2784#(= main_~i~0 10), 2785#(= main_~i~0 11), 2786#(= main_~i~0 12), 2787#(= main_~i~0 13), 2788#(= main_~i~0 14), 2789#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 2770#true, 2771#false, 2774#(= main_~i~0 0), 2775#(= main_~i~0 1), 2776#(= main_~i~0 2), 2777#(= main_~i~0 3), 2778#(= main_~i~0 4), 2779#(= main_~i~0 5), 2780#(= main_~i~0 6), 2781#(= main_~i~0 7), 2782#(= main_~i~0 8), 2783#(= main_~i~0 9)] [2018-04-13 15:42:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:53,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-13 15:42:53,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-13 15:42:53,791 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-04-13 15:42:53,791 INFO L87 Difference]: Start difference. First operand 148 states and 149 transitions. Second operand 18 states. [2018-04-13 15:42:54,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:54,200 INFO L93 Difference]: Finished difference Result 157 states and 158 transitions. [2018-04-13 15:42:54,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-13 15:42:54,200 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 68 [2018-04-13 15:42:54,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:54,201 INFO L225 Difference]: With dead ends: 157 [2018-04-13 15:42:54,201 INFO L226 Difference]: Without dead ends: 157 [2018-04-13 15:42:54,201 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-04-13 15:42:54,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-04-13 15:42:54,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-04-13 15:42:54,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-04-13 15:42:54,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 158 transitions. [2018-04-13 15:42:54,205 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 158 transitions. Word has length 68 [2018-04-13 15:42:54,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:54,205 INFO L459 AbstractCegarLoop]: Abstraction has 157 states and 158 transitions. [2018-04-13 15:42:54,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-13 15:42:54,205 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 158 transitions. [2018-04-13 15:42:54,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-13 15:42:54,206 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:54,206 INFO L355 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:54,206 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:54,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1230436512, now seen corresponding path program 16 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:54,210 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:54,330 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:54,346 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:54,346 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-13 15:42:54,346 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:54,346 INFO L182 omatonBuilderFactory]: Interpolants [3104#true, 3105#false, 3108#(= main_~i~0 0), 3109#(= main_~i~0 1), 3110#(= main_~i~0 2), 3111#(= main_~i~0 3), 3112#(= main_~i~0 4), 3113#(= main_~i~0 5), 3114#(= main_~i~0 6), 3115#(= main_~i~0 7), 3116#(= main_~i~0 8), 3117#(= main_~i~0 9), 3118#(= main_~i~0 10), 3119#(= main_~i~0 11), 3120#(= main_~i~0 12), 3121#(= main_~i~0 13), 3122#(= main_~i~0 14), 3123#(= main_~i~0 15), 3124#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:42:54,347 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:54,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-13 15:42:54,347 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-13 15:42:54,347 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2018-04-13 15:42:54,347 INFO L87 Difference]: Start difference. First operand 157 states and 158 transitions. Second operand 19 states. [2018-04-13 15:42:54,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:54,763 INFO L93 Difference]: Finished difference Result 166 states and 167 transitions. [2018-04-13 15:42:54,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-13 15:42:54,764 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 72 [2018-04-13 15:42:54,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:54,765 INFO L225 Difference]: With dead ends: 166 [2018-04-13 15:42:54,765 INFO L226 Difference]: Without dead ends: 166 [2018-04-13 15:42:54,765 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2018-04-13 15:42:54,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-04-13 15:42:54,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2018-04-13 15:42:54,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-04-13 15:42:54,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 167 transitions. [2018-04-13 15:42:54,767 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 167 transitions. Word has length 72 [2018-04-13 15:42:54,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:54,768 INFO L459 AbstractCegarLoop]: Abstraction has 166 states and 167 transitions. [2018-04-13 15:42:54,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-13 15:42:54,768 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 167 transitions. [2018-04-13 15:42:54,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-13 15:42:54,768 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:54,768 INFO L355 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:54,769 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:54,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1577340057, now seen corresponding path program 17 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:54,771 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:54,886 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:54,886 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-13 15:42:54,886 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:54,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:54,887 INFO L182 omatonBuilderFactory]: Interpolants [3457#true, 3458#false, 3461#(= main_~i~0 0), 3462#(= main_~i~0 1), 3463#(= main_~i~0 2), 3464#(= main_~i~0 3), 3465#(= main_~i~0 4), 3466#(= main_~i~0 5), 3467#(= main_~i~0 6), 3468#(= main_~i~0 7), 3469#(= main_~i~0 8), 3470#(= main_~i~0 9), 3471#(= main_~i~0 10), 3472#(= main_~i~0 11), 3473#(= main_~i~0 12), 3474#(= main_~i~0 13), 3475#(= main_~i~0 14), 3476#(= main_~i~0 15), 3477#(= main_~i~0 16), 3478#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:42:54,887 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:54,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-13 15:42:54,887 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-13 15:42:54,887 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2018-04-13 15:42:54,888 INFO L87 Difference]: Start difference. First operand 166 states and 167 transitions. Second operand 20 states. [2018-04-13 15:42:55,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:55,371 INFO L93 Difference]: Finished difference Result 175 states and 176 transitions. [2018-04-13 15:42:55,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-13 15:42:55,371 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 76 [2018-04-13 15:42:55,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:55,372 INFO L225 Difference]: With dead ends: 175 [2018-04-13 15:42:55,372 INFO L226 Difference]: Without dead ends: 175 [2018-04-13 15:42:55,372 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2018-04-13 15:42:55,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-04-13 15:42:55,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-04-13 15:42:55,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-04-13 15:42:55,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 176 transitions. [2018-04-13 15:42:55,374 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 176 transitions. Word has length 76 [2018-04-13 15:42:55,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:55,374 INFO L459 AbstractCegarLoop]: Abstraction has 175 states and 176 transitions. [2018-04-13 15:42:55,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-13 15:42:55,374 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 176 transitions. [2018-04-13 15:42:55,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-13 15:42:55,374 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:55,375 INFO L355 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:55,375 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:55,375 INFO L82 PathProgramCache]: Analyzing trace with hash -209388526, now seen corresponding path program 18 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:55,377 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:55,492 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:55,510 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:55,510 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-13 15:42:55,510 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:55,511 INFO L182 omatonBuilderFactory]: Interpolants [3840#(= main_~i~0 7), 3841#(= main_~i~0 8), 3842#(= main_~i~0 9), 3843#(= main_~i~0 10), 3844#(= main_~i~0 11), 3845#(= main_~i~0 12), 3846#(= main_~i~0 13), 3847#(= main_~i~0 14), 3848#(= main_~i~0 15), 3849#(= main_~i~0 16), 3850#(= main_~i~0 17), 3851#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 3829#true, 3830#false, 3833#(= main_~i~0 0), 3834#(= main_~i~0 1), 3835#(= main_~i~0 2), 3836#(= main_~i~0 3), 3837#(= main_~i~0 4), 3838#(= main_~i~0 5), 3839#(= main_~i~0 6)] [2018-04-13 15:42:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:55,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-13 15:42:55,511 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-13 15:42:55,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2018-04-13 15:42:55,512 INFO L87 Difference]: Start difference. First operand 175 states and 176 transitions. Second operand 21 states. [2018-04-13 15:42:56,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:56,050 INFO L93 Difference]: Finished difference Result 184 states and 185 transitions. [2018-04-13 15:42:56,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-13 15:42:56,050 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 80 [2018-04-13 15:42:56,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:56,051 INFO L225 Difference]: With dead ends: 184 [2018-04-13 15:42:56,051 INFO L226 Difference]: Without dead ends: 184 [2018-04-13 15:42:56,051 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2018-04-13 15:42:56,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-04-13 15:42:56,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-04-13 15:42:56,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-04-13 15:42:56,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 185 transitions. [2018-04-13 15:42:56,053 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 185 transitions. Word has length 80 [2018-04-13 15:42:56,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:56,053 INFO L459 AbstractCegarLoop]: Abstraction has 184 states and 185 transitions. [2018-04-13 15:42:56,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-13 15:42:56,053 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 185 transitions. [2018-04-13 15:42:56,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-13 15:42:56,053 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:56,053 INFO L355 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:56,054 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:56,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1908360971, now seen corresponding path program 19 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:56,056 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:56,169 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:56,186 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:56,186 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 15:42:56,186 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:56,186 INFO L182 omatonBuilderFactory]: Interpolants [4224#(= main_~i~0 0), 4225#(= main_~i~0 1), 4226#(= main_~i~0 2), 4227#(= main_~i~0 3), 4228#(= main_~i~0 4), 4229#(= main_~i~0 5), 4230#(= main_~i~0 6), 4231#(= main_~i~0 7), 4232#(= main_~i~0 8), 4233#(= main_~i~0 9), 4234#(= main_~i~0 10), 4235#(= main_~i~0 11), 4236#(= main_~i~0 12), 4237#(= main_~i~0 13), 4238#(= main_~i~0 14), 4239#(= main_~i~0 15), 4240#(= main_~i~0 16), 4241#(= main_~i~0 17), 4242#(= main_~i~0 18), 4243#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 4220#true, 4221#false] [2018-04-13 15:42:56,187 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:56,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-13 15:42:56,187 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-13 15:42:56,187 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2018-04-13 15:42:56,187 INFO L87 Difference]: Start difference. First operand 184 states and 185 transitions. Second operand 22 states. [2018-04-13 15:42:56,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:56,796 INFO L93 Difference]: Finished difference Result 193 states and 194 transitions. [2018-04-13 15:42:56,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-13 15:42:56,796 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 84 [2018-04-13 15:42:56,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:56,797 INFO L225 Difference]: With dead ends: 193 [2018-04-13 15:42:56,797 INFO L226 Difference]: Without dead ends: 193 [2018-04-13 15:42:56,797 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2018-04-13 15:42:56,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-04-13 15:42:56,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2018-04-13 15:42:56,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-04-13 15:42:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 194 transitions. [2018-04-13 15:42:56,801 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 194 transitions. Word has length 84 [2018-04-13 15:42:56,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:56,801 INFO L459 AbstractCegarLoop]: Abstraction has 193 states and 194 transitions. [2018-04-13 15:42:56,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-13 15:42:56,801 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 194 transitions. [2018-04-13 15:42:56,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-13 15:42:56,802 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:56,802 INFO L355 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:56,802 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:56,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1668902276, now seen corresponding path program 20 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:56,808 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:56,950 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:56,950 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-13 15:42:56,950 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:56,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:56,950 INFO L182 omatonBuilderFactory]: Interpolants [4640#(= main_~i~0 6), 4641#(= main_~i~0 7), 4642#(= main_~i~0 8), 4643#(= main_~i~0 9), 4644#(= main_~i~0 10), 4645#(= main_~i~0 11), 4646#(= main_~i~0 12), 4647#(= main_~i~0 13), 4648#(= main_~i~0 14), 4649#(= main_~i~0 15), 4650#(= main_~i~0 16), 4651#(= main_~i~0 17), 4652#(= main_~i~0 18), 4653#(= main_~i~0 19), 4654#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 4630#true, 4631#false, 4634#(= main_~i~0 0), 4635#(= main_~i~0 1), 4636#(= main_~i~0 2), 4637#(= main_~i~0 3), 4638#(= main_~i~0 4), 4639#(= main_~i~0 5)] [2018-04-13 15:42:56,951 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:56,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-13 15:42:56,951 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-13 15:42:56,951 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2018-04-13 15:42:56,951 INFO L87 Difference]: Start difference. First operand 193 states and 194 transitions. Second operand 23 states. [2018-04-13 15:42:57,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:57,588 INFO L93 Difference]: Finished difference Result 202 states and 203 transitions. [2018-04-13 15:42:57,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-13 15:42:57,589 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 88 [2018-04-13 15:42:57,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:57,589 INFO L225 Difference]: With dead ends: 202 [2018-04-13 15:42:57,589 INFO L226 Difference]: Without dead ends: 202 [2018-04-13 15:42:57,590 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2018-04-13 15:42:57,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-04-13 15:42:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2018-04-13 15:42:57,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-04-13 15:42:57,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 203 transitions. [2018-04-13 15:42:57,593 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 203 transitions. Word has length 88 [2018-04-13 15:42:57,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:57,594 INFO L459 AbstractCegarLoop]: Abstraction has 202 states and 203 transitions. [2018-04-13 15:42:57,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-13 15:42:57,594 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 203 transitions. [2018-04-13 15:42:57,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-04-13 15:42:57,594 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:57,594 INFO L355 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:57,594 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:57,595 INFO L82 PathProgramCache]: Analyzing trace with hash 106540925, now seen corresponding path program 21 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:57,599 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:57,782 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:57,782 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-13 15:42:57,782 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:57,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:57,783 INFO L182 omatonBuilderFactory]: Interpolants [5059#true, 5060#false, 5063#(= main_~i~0 0), 5064#(= main_~i~0 1), 5065#(= main_~i~0 2), 5066#(= main_~i~0 3), 5067#(= main_~i~0 4), 5068#(= main_~i~0 5), 5069#(= main_~i~0 6), 5070#(= main_~i~0 7), 5071#(= main_~i~0 8), 5072#(= main_~i~0 9), 5073#(= main_~i~0 10), 5074#(= main_~i~0 11), 5075#(= main_~i~0 12), 5076#(= main_~i~0 13), 5077#(= main_~i~0 14), 5078#(= main_~i~0 15), 5079#(= main_~i~0 16), 5080#(= main_~i~0 17), 5081#(= main_~i~0 18), 5082#(= main_~i~0 19), 5083#(= main_~i~0 20), 5084#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:42:57,783 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:57,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-13 15:42:57,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-13 15:42:57,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2018-04-13 15:42:57,784 INFO L87 Difference]: Start difference. First operand 202 states and 203 transitions. Second operand 24 states. [2018-04-13 15:42:58,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:58,510 INFO L93 Difference]: Finished difference Result 211 states and 212 transitions. [2018-04-13 15:42:58,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-13 15:42:58,510 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 92 [2018-04-13 15:42:58,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:58,511 INFO L225 Difference]: With dead ends: 211 [2018-04-13 15:42:58,511 INFO L226 Difference]: Without dead ends: 211 [2018-04-13 15:42:58,512 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2018-04-13 15:42:58,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-04-13 15:42:58,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2018-04-13 15:42:58,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-04-13 15:42:58,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 212 transitions. [2018-04-13 15:42:58,515 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 212 transitions. Word has length 92 [2018-04-13 15:42:58,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:58,515 INFO L459 AbstractCegarLoop]: Abstraction has 211 states and 212 transitions. [2018-04-13 15:42:58,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-13 15:42:58,515 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 212 transitions. [2018-04-13 15:42:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-04-13 15:42:58,515 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:58,515 INFO L355 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:58,515 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:58,515 INFO L82 PathProgramCache]: Analyzing trace with hash -622441226, now seen corresponding path program 22 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:58,521 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:58,683 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:58,701 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:58,701 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-13 15:42:58,701 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:58,702 INFO L182 omatonBuilderFactory]: Interpolants [5507#true, 5508#false, 5511#(= main_~i~0 0), 5512#(= main_~i~0 1), 5513#(= main_~i~0 2), 5514#(= main_~i~0 3), 5515#(= main_~i~0 4), 5516#(= main_~i~0 5), 5517#(= main_~i~0 6), 5518#(= main_~i~0 7), 5519#(= main_~i~0 8), 5520#(= main_~i~0 9), 5521#(= main_~i~0 10), 5522#(= main_~i~0 11), 5523#(= main_~i~0 12), 5524#(= main_~i~0 13), 5525#(= main_~i~0 14), 5526#(= main_~i~0 15), 5527#(= main_~i~0 16), 5528#(= main_~i~0 17), 5529#(= main_~i~0 18), 5530#(= main_~i~0 19), 5531#(= main_~i~0 20), 5532#(= main_~i~0 21), 5533#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:42:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:58,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-13 15:42:58,702 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-13 15:42:58,703 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2018-04-13 15:42:58,703 INFO L87 Difference]: Start difference. First operand 211 states and 212 transitions. Second operand 25 states. [2018-04-13 15:42:59,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:42:59,473 INFO L93 Difference]: Finished difference Result 220 states and 221 transitions. [2018-04-13 15:42:59,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-13 15:42:59,473 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 96 [2018-04-13 15:42:59,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:42:59,474 INFO L225 Difference]: With dead ends: 220 [2018-04-13 15:42:59,474 INFO L226 Difference]: Without dead ends: 220 [2018-04-13 15:42:59,474 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2018-04-13 15:42:59,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-04-13 15:42:59,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2018-04-13 15:42:59,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-04-13 15:42:59,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 221 transitions. [2018-04-13 15:42:59,478 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 221 transitions. Word has length 96 [2018-04-13 15:42:59,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:42:59,478 INFO L459 AbstractCegarLoop]: Abstraction has 220 states and 221 transitions. [2018-04-13 15:42:59,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-13 15:42:59,479 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 221 transitions. [2018-04-13 15:42:59,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-04-13 15:42:59,479 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:42:59,479 INFO L355 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 1, 1, 1, 1, 1, 1] [2018-04-13 15:42:59,479 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:42:59,479 INFO L82 PathProgramCache]: Analyzing trace with hash 881165807, now seen corresponding path program 23 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:42:59,494 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:42:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:42:59,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:59,691 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:42:59,691 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-13 15:42:59,691 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:42:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:59,692 INFO L182 omatonBuilderFactory]: Interpolants [5974#true, 5975#false, 5978#(= main_~i~0 0), 5979#(= main_~i~0 1), 5980#(= main_~i~0 2), 5981#(= main_~i~0 3), 5982#(= main_~i~0 4), 5983#(= main_~i~0 5), 5984#(= main_~i~0 6), 5985#(= main_~i~0 7), 5986#(= main_~i~0 8), 5987#(= main_~i~0 9), 5988#(= main_~i~0 10), 5989#(= main_~i~0 11), 5990#(= main_~i~0 12), 5991#(= main_~i~0 13), 5992#(= main_~i~0 14), 5993#(= main_~i~0 15), 5994#(= main_~i~0 16), 5995#(= main_~i~0 17), 5996#(= main_~i~0 18), 5997#(= main_~i~0 19), 5998#(= main_~i~0 20), 5999#(= main_~i~0 21), 6000#(= main_~i~0 22), 6001#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:42:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:42:59,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-13 15:42:59,692 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-13 15:42:59,692 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2018-04-13 15:42:59,693 INFO L87 Difference]: Start difference. First operand 220 states and 221 transitions. Second operand 26 states. [2018-04-13 15:43:00,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:00,711 INFO L93 Difference]: Finished difference Result 229 states and 230 transitions. [2018-04-13 15:43:00,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 15:43:00,711 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 100 [2018-04-13 15:43:00,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:00,712 INFO L225 Difference]: With dead ends: 229 [2018-04-13 15:43:00,712 INFO L226 Difference]: Without dead ends: 229 [2018-04-13 15:43:00,712 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2018-04-13 15:43:00,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-04-13 15:43:00,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2018-04-13 15:43:00,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-04-13 15:43:00,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 230 transitions. [2018-04-13 15:43:00,714 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 230 transitions. Word has length 100 [2018-04-13 15:43:00,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:00,715 INFO L459 AbstractCegarLoop]: Abstraction has 229 states and 230 transitions. [2018-04-13 15:43:00,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-13 15:43:00,715 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 230 transitions. [2018-04-13 15:43:00,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-04-13 15:43:00,715 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:00,715 INFO L355 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:00,715 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:00,715 INFO L82 PathProgramCache]: Analyzing trace with hash -914515352, now seen corresponding path program 24 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:00,718 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:00,911 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:00,911 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 15:43:00,911 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:00,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:00,911 INFO L182 omatonBuilderFactory]: Interpolants [6464#(= main_~i~0 0), 6465#(= main_~i~0 1), 6466#(= main_~i~0 2), 6467#(= main_~i~0 3), 6468#(= main_~i~0 4), 6469#(= main_~i~0 5), 6470#(= main_~i~0 6), 6471#(= main_~i~0 7), 6472#(= main_~i~0 8), 6473#(= main_~i~0 9), 6474#(= main_~i~0 10), 6475#(= main_~i~0 11), 6476#(= main_~i~0 12), 6477#(= main_~i~0 13), 6478#(= main_~i~0 14), 6479#(= main_~i~0 15), 6480#(= main_~i~0 16), 6481#(= main_~i~0 17), 6482#(= main_~i~0 18), 6483#(= main_~i~0 19), 6484#(= main_~i~0 20), 6485#(= main_~i~0 21), 6486#(= main_~i~0 22), 6487#(= main_~i~0 23), 6488#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 6460#true, 6461#false] [2018-04-13 15:43:00,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:00,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 15:43:00,912 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 15:43:00,912 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2018-04-13 15:43:00,912 INFO L87 Difference]: Start difference. First operand 229 states and 230 transitions. Second operand 27 states. [2018-04-13 15:43:01,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:01,972 INFO L93 Difference]: Finished difference Result 238 states and 239 transitions. [2018-04-13 15:43:01,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-13 15:43:01,972 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 104 [2018-04-13 15:43:01,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:01,974 INFO L225 Difference]: With dead ends: 238 [2018-04-13 15:43:01,974 INFO L226 Difference]: Without dead ends: 238 [2018-04-13 15:43:01,975 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2018-04-13 15:43:01,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-04-13 15:43:01,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2018-04-13 15:43:01,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-04-13 15:43:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 239 transitions. [2018-04-13 15:43:01,979 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 239 transitions. Word has length 104 [2018-04-13 15:43:01,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:01,979 INFO L459 AbstractCegarLoop]: Abstraction has 238 states and 239 transitions. [2018-04-13 15:43:01,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 15:43:01,979 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 239 transitions. [2018-04-13 15:43:01,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-04-13 15:43:01,980 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:01,980 INFO L355 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:01,980 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:01,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1123338849, now seen corresponding path program 25 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:02,000 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:02,430 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:02,431 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-13 15:43:02,431 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:02,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:02,431 INFO L182 omatonBuilderFactory]: Interpolants [6976#(= main_~i~0 7), 6977#(= main_~i~0 8), 6978#(= main_~i~0 9), 6979#(= main_~i~0 10), 6980#(= main_~i~0 11), 6981#(= main_~i~0 12), 6982#(= main_~i~0 13), 6983#(= main_~i~0 14), 6984#(= main_~i~0 15), 6985#(= main_~i~0 16), 6986#(= main_~i~0 17), 6987#(= main_~i~0 18), 6988#(= main_~i~0 19), 6989#(= main_~i~0 20), 6990#(= main_~i~0 21), 6991#(= main_~i~0 22), 6992#(= main_~i~0 23), 6993#(= main_~i~0 24), 6994#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 6965#true, 6966#false, 6969#(= main_~i~0 0), 6970#(= main_~i~0 1), 6971#(= main_~i~0 2), 6972#(= main_~i~0 3), 6973#(= main_~i~0 4), 6974#(= main_~i~0 5), 6975#(= main_~i~0 6)] [2018-04-13 15:43:02,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:02,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-13 15:43:02,432 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-13 15:43:02,432 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2018-04-13 15:43:02,432 INFO L87 Difference]: Start difference. First operand 238 states and 239 transitions. Second operand 28 states. [2018-04-13 15:43:03,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:03,620 INFO L93 Difference]: Finished difference Result 247 states and 248 transitions. [2018-04-13 15:43:03,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 15:43:03,620 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 108 [2018-04-13 15:43:03,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:03,621 INFO L225 Difference]: With dead ends: 247 [2018-04-13 15:43:03,621 INFO L226 Difference]: Without dead ends: 247 [2018-04-13 15:43:03,622 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2018-04-13 15:43:03,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-04-13 15:43:03,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2018-04-13 15:43:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-04-13 15:43:03,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 248 transitions. [2018-04-13 15:43:03,625 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 248 transitions. Word has length 108 [2018-04-13 15:43:03,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:03,625 INFO L459 AbstractCegarLoop]: Abstraction has 247 states and 248 transitions. [2018-04-13 15:43:03,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-13 15:43:03,626 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 248 transitions. [2018-04-13 15:43:03,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-04-13 15:43:03,626 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:03,626 INFO L355 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:03,626 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:03,627 INFO L82 PathProgramCache]: Analyzing trace with hash -856599078, now seen corresponding path program 26 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:03,630 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:03,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:03,899 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:03,899 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-13 15:43:03,900 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:03,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:03,900 INFO L182 omatonBuilderFactory]: Interpolants [7489#true, 7490#false, 7493#(= main_~i~0 0), 7494#(= main_~i~0 1), 7495#(= main_~i~0 2), 7496#(= main_~i~0 3), 7497#(= main_~i~0 4), 7498#(= main_~i~0 5), 7499#(= main_~i~0 6), 7500#(= main_~i~0 7), 7501#(= main_~i~0 8), 7502#(= main_~i~0 9), 7503#(= main_~i~0 10), 7504#(= main_~i~0 11), 7505#(= main_~i~0 12), 7506#(= main_~i~0 13), 7507#(= main_~i~0 14), 7508#(= main_~i~0 15), 7509#(= main_~i~0 16), 7510#(= main_~i~0 17), 7511#(= main_~i~0 18), 7512#(= main_~i~0 19), 7513#(= main_~i~0 20), 7514#(= main_~i~0 21), 7515#(= main_~i~0 22), 7516#(= main_~i~0 23), 7517#(= main_~i~0 24), 7518#(= main_~i~0 25), 7519#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:03,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:03,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-13 15:43:03,901 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-13 15:43:03,901 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2018-04-13 15:43:03,902 INFO L87 Difference]: Start difference. First operand 247 states and 248 transitions. Second operand 29 states. [2018-04-13 15:43:04,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:04,937 INFO L93 Difference]: Finished difference Result 256 states and 257 transitions. [2018-04-13 15:43:04,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 15:43:04,938 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 112 [2018-04-13 15:43:04,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:04,938 INFO L225 Difference]: With dead ends: 256 [2018-04-13 15:43:04,938 INFO L226 Difference]: Without dead ends: 256 [2018-04-13 15:43:04,939 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2018-04-13 15:43:04,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-04-13 15:43:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2018-04-13 15:43:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-04-13 15:43:04,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 257 transitions. [2018-04-13 15:43:04,942 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 257 transitions. Word has length 112 [2018-04-13 15:43:04,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:04,942 INFO L459 AbstractCegarLoop]: Abstraction has 256 states and 257 transitions. [2018-04-13 15:43:04,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-13 15:43:04,942 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 257 transitions. [2018-04-13 15:43:04,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-04-13 15:43:04,943 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:04,943 INFO L355 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:04,943 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:04,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1504084781, now seen corresponding path program 27 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:04,948 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:05,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:05,184 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:05,184 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-13 15:43:05,184 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:05,185 INFO L182 omatonBuilderFactory]: Interpolants [8032#true, 8033#false, 8036#(= main_~i~0 0), 8037#(= main_~i~0 1), 8038#(= main_~i~0 2), 8039#(= main_~i~0 3), 8040#(= main_~i~0 4), 8041#(= main_~i~0 5), 8042#(= main_~i~0 6), 8043#(= main_~i~0 7), 8044#(= main_~i~0 8), 8045#(= main_~i~0 9), 8046#(= main_~i~0 10), 8047#(= main_~i~0 11), 8048#(= main_~i~0 12), 8049#(= main_~i~0 13), 8050#(= main_~i~0 14), 8051#(= main_~i~0 15), 8052#(= main_~i~0 16), 8053#(= main_~i~0 17), 8054#(= main_~i~0 18), 8055#(= main_~i~0 19), 8056#(= main_~i~0 20), 8057#(= main_~i~0 21), 8058#(= main_~i~0 22), 8059#(= main_~i~0 23), 8060#(= main_~i~0 24), 8061#(= main_~i~0 25), 8062#(= main_~i~0 26), 8063#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:05,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-13 15:43:05,186 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-13 15:43:05,186 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=786, Unknown=0, NotChecked=0, Total=870 [2018-04-13 15:43:05,186 INFO L87 Difference]: Start difference. First operand 256 states and 257 transitions. Second operand 30 states. [2018-04-13 15:43:06,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:06,328 INFO L93 Difference]: Finished difference Result 265 states and 266 transitions. [2018-04-13 15:43:06,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-13 15:43:06,328 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 116 [2018-04-13 15:43:06,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:06,329 INFO L225 Difference]: With dead ends: 265 [2018-04-13 15:43:06,329 INFO L226 Difference]: Without dead ends: 265 [2018-04-13 15:43:06,329 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=786, Unknown=0, NotChecked=0, Total=870 [2018-04-13 15:43:06,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-04-13 15:43:06,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2018-04-13 15:43:06,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-04-13 15:43:06,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 266 transitions. [2018-04-13 15:43:06,331 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 266 transitions. Word has length 116 [2018-04-13 15:43:06,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:06,331 INFO L459 AbstractCegarLoop]: Abstraction has 265 states and 266 transitions. [2018-04-13 15:43:06,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-13 15:43:06,331 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 266 transitions. [2018-04-13 15:43:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-04-13 15:43:06,331 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:06,331 INFO L355 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:06,332 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:06,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1326219444, now seen corresponding path program 28 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:06,334 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:06,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:06,590 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:06,590 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-13 15:43:06,590 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:06,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:06,590 INFO L182 omatonBuilderFactory]: Interpolants [8594#true, 8595#false, 8598#(= main_~i~0 0), 8599#(= main_~i~0 1), 8600#(= main_~i~0 2), 8601#(= main_~i~0 3), 8602#(= main_~i~0 4), 8603#(= main_~i~0 5), 8604#(= main_~i~0 6), 8605#(= main_~i~0 7), 8606#(= main_~i~0 8), 8607#(= main_~i~0 9), 8608#(= main_~i~0 10), 8609#(= main_~i~0 11), 8610#(= main_~i~0 12), 8611#(= main_~i~0 13), 8612#(= main_~i~0 14), 8613#(= main_~i~0 15), 8614#(= main_~i~0 16), 8615#(= main_~i~0 17), 8616#(= main_~i~0 18), 8617#(= main_~i~0 19), 8618#(= main_~i~0 20), 8619#(= main_~i~0 21), 8620#(= main_~i~0 22), 8621#(= main_~i~0 23), 8622#(= main_~i~0 24), 8623#(= main_~i~0 25), 8624#(= main_~i~0 26), 8625#(= main_~i~0 27), 8626#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:06,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:06,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-13 15:43:06,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-13 15:43:06,591 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2018-04-13 15:43:06,591 INFO L87 Difference]: Start difference. First operand 265 states and 266 transitions. Second operand 31 states. [2018-04-13 15:43:07,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:07,869 INFO L93 Difference]: Finished difference Result 274 states and 275 transitions. [2018-04-13 15:43:07,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-13 15:43:07,869 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 120 [2018-04-13 15:43:07,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:07,869 INFO L225 Difference]: With dead ends: 274 [2018-04-13 15:43:07,870 INFO L226 Difference]: Without dead ends: 274 [2018-04-13 15:43:07,870 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2018-04-13 15:43:07,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-04-13 15:43:07,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2018-04-13 15:43:07,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2018-04-13 15:43:07,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 275 transitions. [2018-04-13 15:43:07,872 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 275 transitions. Word has length 120 [2018-04-13 15:43:07,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:07,873 INFO L459 AbstractCegarLoop]: Abstraction has 274 states and 275 transitions. [2018-04-13 15:43:07,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-13 15:43:07,873 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 275 transitions. [2018-04-13 15:43:07,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-04-13 15:43:07,873 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:07,873 INFO L355 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:07,873 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:07,874 INFO L82 PathProgramCache]: Analyzing trace with hash 23436613, now seen corresponding path program 29 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:07,876 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:08,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:08,146 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:08,146 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-04-13 15:43:08,146 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:08,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:08,147 INFO L182 omatonBuilderFactory]: Interpolants [9175#true, 9176#false, 9179#(= main_~i~0 0), 9180#(= main_~i~0 1), 9181#(= main_~i~0 2), 9182#(= main_~i~0 3), 9183#(= main_~i~0 4), 9184#(= main_~i~0 5), 9185#(= main_~i~0 6), 9186#(= main_~i~0 7), 9187#(= main_~i~0 8), 9188#(= main_~i~0 9), 9189#(= main_~i~0 10), 9190#(= main_~i~0 11), 9191#(= main_~i~0 12), 9192#(= main_~i~0 13), 9193#(= main_~i~0 14), 9194#(= main_~i~0 15), 9195#(= main_~i~0 16), 9196#(= main_~i~0 17), 9197#(= main_~i~0 18), 9198#(= main_~i~0 19), 9199#(= main_~i~0 20), 9200#(= main_~i~0 21), 9201#(= main_~i~0 22), 9202#(= main_~i~0 23), 9203#(= main_~i~0 24), 9204#(= main_~i~0 25), 9205#(= main_~i~0 26), 9206#(= main_~i~0 27), 9207#(= main_~i~0 28), 9208#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:08,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:08,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-13 15:43:08,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-13 15:43:08,148 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=902, Unknown=0, NotChecked=0, Total=992 [2018-04-13 15:43:08,148 INFO L87 Difference]: Start difference. First operand 274 states and 275 transitions. Second operand 32 states. [2018-04-13 15:43:09,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:09,471 INFO L93 Difference]: Finished difference Result 283 states and 284 transitions. [2018-04-13 15:43:09,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-13 15:43:09,471 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 124 [2018-04-13 15:43:09,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:09,472 INFO L225 Difference]: With dead ends: 283 [2018-04-13 15:43:09,472 INFO L226 Difference]: Without dead ends: 283 [2018-04-13 15:43:09,472 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=902, Unknown=0, NotChecked=0, Total=992 [2018-04-13 15:43:09,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-04-13 15:43:09,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2018-04-13 15:43:09,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2018-04-13 15:43:09,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 284 transitions. [2018-04-13 15:43:09,474 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 284 transitions. Word has length 124 [2018-04-13 15:43:09,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:09,475 INFO L459 AbstractCegarLoop]: Abstraction has 283 states and 284 transitions. [2018-04-13 15:43:09,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-13 15:43:09,475 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 284 transitions. [2018-04-13 15:43:09,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-04-13 15:43:09,475 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:09,475 INFO L355 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:09,475 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:09,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1865815742, now seen corresponding path program 30 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:09,478 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:09,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:09,769 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:09,769 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-04-13 15:43:09,769 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:09,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:09,770 INFO L182 omatonBuilderFactory]: Interpolants [9792#(= main_~i~0 13), 9793#(= main_~i~0 14), 9794#(= main_~i~0 15), 9795#(= main_~i~0 16), 9796#(= main_~i~0 17), 9797#(= main_~i~0 18), 9798#(= main_~i~0 19), 9799#(= main_~i~0 20), 9800#(= main_~i~0 21), 9801#(= main_~i~0 22), 9802#(= main_~i~0 23), 9803#(= main_~i~0 24), 9804#(= main_~i~0 25), 9805#(= main_~i~0 26), 9806#(= main_~i~0 27), 9807#(= main_~i~0 28), 9808#(= main_~i~0 29), 9809#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 9775#true, 9776#false, 9779#(= main_~i~0 0), 9780#(= main_~i~0 1), 9781#(= main_~i~0 2), 9782#(= main_~i~0 3), 9783#(= main_~i~0 4), 9784#(= main_~i~0 5), 9785#(= main_~i~0 6), 9786#(= main_~i~0 7), 9787#(= main_~i~0 8), 9788#(= main_~i~0 9), 9789#(= main_~i~0 10), 9790#(= main_~i~0 11), 9791#(= main_~i~0 12)] [2018-04-13 15:43:09,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:09,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-13 15:43:09,770 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-13 15:43:09,771 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=963, Unknown=0, NotChecked=0, Total=1056 [2018-04-13 15:43:09,771 INFO L87 Difference]: Start difference. First operand 283 states and 284 transitions. Second operand 33 states. [2018-04-13 15:43:11,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:11,140 INFO L93 Difference]: Finished difference Result 292 states and 293 transitions. [2018-04-13 15:43:11,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-13 15:43:11,141 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 128 [2018-04-13 15:43:11,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:11,141 INFO L225 Difference]: With dead ends: 292 [2018-04-13 15:43:11,141 INFO L226 Difference]: Without dead ends: 292 [2018-04-13 15:43:11,142 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=963, Unknown=0, NotChecked=0, Total=1056 [2018-04-13 15:43:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-04-13 15:43:11,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2018-04-13 15:43:11,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2018-04-13 15:43:11,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 293 transitions. [2018-04-13 15:43:11,145 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 293 transitions. Word has length 128 [2018-04-13 15:43:11,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:11,146 INFO L459 AbstractCegarLoop]: Abstraction has 292 states and 293 transitions. [2018-04-13 15:43:11,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-13 15:43:11,146 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 293 transitions. [2018-04-13 15:43:11,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-04-13 15:43:11,146 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:11,146 INFO L355 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:11,146 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:11,147 INFO L82 PathProgramCache]: Analyzing trace with hash 617294775, now seen corresponding path program 31 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:11,149 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:11,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:11,453 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:11,454 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-04-13 15:43:11,454 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:11,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:11,454 INFO L182 omatonBuilderFactory]: Interpolants [10394#true, 10395#false, 10398#(= main_~i~0 0), 10399#(= main_~i~0 1), 10400#(= main_~i~0 2), 10401#(= main_~i~0 3), 10402#(= main_~i~0 4), 10403#(= main_~i~0 5), 10404#(= main_~i~0 6), 10405#(= main_~i~0 7), 10406#(= main_~i~0 8), 10407#(= main_~i~0 9), 10408#(= main_~i~0 10), 10409#(= main_~i~0 11), 10410#(= main_~i~0 12), 10411#(= main_~i~0 13), 10412#(= main_~i~0 14), 10413#(= main_~i~0 15), 10414#(= main_~i~0 16), 10415#(= main_~i~0 17), 10416#(= main_~i~0 18), 10417#(= main_~i~0 19), 10418#(= main_~i~0 20), 10419#(= main_~i~0 21), 10420#(= main_~i~0 22), 10421#(= main_~i~0 23), 10422#(= main_~i~0 24), 10423#(= main_~i~0 25), 10424#(= main_~i~0 26), 10425#(= main_~i~0 27), 10426#(= main_~i~0 28), 10427#(= main_~i~0 29), 10428#(= main_~i~0 30), 10429#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:11,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:11,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-13 15:43:11,455 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-13 15:43:11,455 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1026, Unknown=0, NotChecked=0, Total=1122 [2018-04-13 15:43:11,456 INFO L87 Difference]: Start difference. First operand 292 states and 293 transitions. Second operand 34 states. [2018-04-13 15:43:12,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:12,907 INFO L93 Difference]: Finished difference Result 301 states and 302 transitions. [2018-04-13 15:43:12,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-13 15:43:12,907 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 132 [2018-04-13 15:43:12,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:12,908 INFO L225 Difference]: With dead ends: 301 [2018-04-13 15:43:12,908 INFO L226 Difference]: Without dead ends: 301 [2018-04-13 15:43:12,908 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=1026, Unknown=0, NotChecked=0, Total=1122 [2018-04-13 15:43:12,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2018-04-13 15:43:12,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2018-04-13 15:43:12,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2018-04-13 15:43:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 302 transitions. [2018-04-13 15:43:12,910 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 302 transitions. Word has length 132 [2018-04-13 15:43:12,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:12,911 INFO L459 AbstractCegarLoop]: Abstraction has 301 states and 302 transitions. [2018-04-13 15:43:12,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-13 15:43:12,911 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 302 transitions. [2018-04-13 15:43:12,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-04-13 15:43:12,911 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:12,911 INFO L355 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:12,911 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:12,912 INFO L82 PathProgramCache]: Analyzing trace with hash 795548720, now seen corresponding path program 32 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:12,914 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:13,241 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:13,241 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-13 15:43:13,241 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:13,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:13,242 INFO L182 omatonBuilderFactory]: Interpolants [11032#true, 11033#false, 11036#(= main_~i~0 0), 11037#(= main_~i~0 1), 11038#(= main_~i~0 2), 11039#(= main_~i~0 3), 11040#(= main_~i~0 4), 11041#(= main_~i~0 5), 11042#(= main_~i~0 6), 11043#(= main_~i~0 7), 11044#(= main_~i~0 8), 11045#(= main_~i~0 9), 11046#(= main_~i~0 10), 11047#(= main_~i~0 11), 11048#(= main_~i~0 12), 11049#(= main_~i~0 13), 11050#(= main_~i~0 14), 11051#(= main_~i~0 15), 11052#(= main_~i~0 16), 11053#(= main_~i~0 17), 11054#(= main_~i~0 18), 11055#(= main_~i~0 19), 11056#(= main_~i~0 20), 11057#(= main_~i~0 21), 11058#(= main_~i~0 22), 11059#(= main_~i~0 23), 11060#(= main_~i~0 24), 11061#(= main_~i~0 25), 11062#(= main_~i~0 26), 11063#(= main_~i~0 27), 11064#(= main_~i~0 28), 11065#(= main_~i~0 29), 11066#(= main_~i~0 30), 11067#(= main_~i~0 31), 11068#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:13,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-13 15:43:13,243 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-13 15:43:13,243 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1091, Unknown=0, NotChecked=0, Total=1190 [2018-04-13 15:43:13,243 INFO L87 Difference]: Start difference. First operand 301 states and 302 transitions. Second operand 35 states. [2018-04-13 15:43:14,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:14,877 INFO L93 Difference]: Finished difference Result 310 states and 311 transitions. [2018-04-13 15:43:14,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-13 15:43:14,878 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 136 [2018-04-13 15:43:14,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:14,878 INFO L225 Difference]: With dead ends: 310 [2018-04-13 15:43:14,879 INFO L226 Difference]: Without dead ends: 310 [2018-04-13 15:43:14,879 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=1091, Unknown=0, NotChecked=0, Total=1190 [2018-04-13 15:43:14,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-04-13 15:43:14,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2018-04-13 15:43:14,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2018-04-13 15:43:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 311 transitions. [2018-04-13 15:43:14,883 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 311 transitions. Word has length 136 [2018-04-13 15:43:14,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:14,883 INFO L459 AbstractCegarLoop]: Abstraction has 310 states and 311 transitions. [2018-04-13 15:43:14,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-13 15:43:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 311 transitions. [2018-04-13 15:43:14,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-04-13 15:43:14,884 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:14,884 INFO L355 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:14,884 INFO L408 AbstractCegarLoop]: === Iteration 34 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:14,884 INFO L82 PathProgramCache]: Analyzing trace with hash 255600681, now seen corresponding path program 33 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:14,886 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:15,256 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:15,256 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-04-13 15:43:15,257 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:15,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:15,257 INFO L182 omatonBuilderFactory]: Interpolants [11712#(= main_~i~0 19), 11713#(= main_~i~0 20), 11714#(= main_~i~0 21), 11715#(= main_~i~0 22), 11716#(= main_~i~0 23), 11717#(= main_~i~0 24), 11718#(= main_~i~0 25), 11719#(= main_~i~0 26), 11720#(= main_~i~0 27), 11721#(= main_~i~0 28), 11722#(= main_~i~0 29), 11723#(= main_~i~0 30), 11724#(= main_~i~0 31), 11725#(= main_~i~0 32), 11726#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 11689#true, 11690#false, 11693#(= main_~i~0 0), 11694#(= main_~i~0 1), 11695#(= main_~i~0 2), 11696#(= main_~i~0 3), 11697#(= main_~i~0 4), 11698#(= main_~i~0 5), 11699#(= main_~i~0 6), 11700#(= main_~i~0 7), 11701#(= main_~i~0 8), 11702#(= main_~i~0 9), 11703#(= main_~i~0 10), 11704#(= main_~i~0 11), 11705#(= main_~i~0 12), 11706#(= main_~i~0 13), 11707#(= main_~i~0 14), 11708#(= main_~i~0 15), 11709#(= main_~i~0 16), 11710#(= main_~i~0 17), 11711#(= main_~i~0 18)] [2018-04-13 15:43:15,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:15,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-13 15:43:15,258 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-13 15:43:15,258 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=1158, Unknown=0, NotChecked=0, Total=1260 [2018-04-13 15:43:15,258 INFO L87 Difference]: Start difference. First operand 310 states and 311 transitions. Second operand 36 states. [2018-04-13 15:43:16,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:16,938 INFO L93 Difference]: Finished difference Result 319 states and 320 transitions. [2018-04-13 15:43:16,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-13 15:43:16,938 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 140 [2018-04-13 15:43:16,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:16,939 INFO L225 Difference]: With dead ends: 319 [2018-04-13 15:43:16,939 INFO L226 Difference]: Without dead ends: 319 [2018-04-13 15:43:16,940 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=1158, Unknown=0, NotChecked=0, Total=1260 [2018-04-13 15:43:16,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2018-04-13 15:43:16,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2018-04-13 15:43:16,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2018-04-13 15:43:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 320 transitions. [2018-04-13 15:43:16,944 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 320 transitions. Word has length 140 [2018-04-13 15:43:16,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:16,945 INFO L459 AbstractCegarLoop]: Abstraction has 319 states and 320 transitions. [2018-04-13 15:43:16,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-13 15:43:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 320 transitions. [2018-04-13 15:43:16,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-04-13 15:43:16,946 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:16,946 INFO L355 BasicCegarLoop]: trace histogram [35, 35, 34, 34, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:16,946 INFO L408 AbstractCegarLoop]: === Iteration 35 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:16,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1195675554, now seen corresponding path program 34 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:16,949 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:17,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:17,360 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:17,360 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-04-13 15:43:17,360 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:17,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:17,360 INFO L182 omatonBuilderFactory]: Interpolants [12365#true, 12366#false, 12369#(= main_~i~0 0), 12370#(= main_~i~0 1), 12371#(= main_~i~0 2), 12372#(= main_~i~0 3), 12373#(= main_~i~0 4), 12374#(= main_~i~0 5), 12375#(= main_~i~0 6), 12376#(= main_~i~0 7), 12377#(= main_~i~0 8), 12378#(= main_~i~0 9), 12379#(= main_~i~0 10), 12380#(= main_~i~0 11), 12381#(= main_~i~0 12), 12382#(= main_~i~0 13), 12383#(= main_~i~0 14), 12384#(= main_~i~0 15), 12385#(= main_~i~0 16), 12386#(= main_~i~0 17), 12387#(= main_~i~0 18), 12388#(= main_~i~0 19), 12389#(= main_~i~0 20), 12390#(= main_~i~0 21), 12391#(= main_~i~0 22), 12392#(= main_~i~0 23), 12393#(= main_~i~0 24), 12394#(= main_~i~0 25), 12395#(= main_~i~0 26), 12396#(= main_~i~0 27), 12397#(= main_~i~0 28), 12398#(= main_~i~0 29), 12399#(= main_~i~0 30), 12400#(= main_~i~0 31), 12401#(= main_~i~0 32), 12402#(= main_~i~0 33), 12403#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:17,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:17,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-13 15:43:17,361 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-13 15:43:17,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2018-04-13 15:43:17,361 INFO L87 Difference]: Start difference. First operand 319 states and 320 transitions. Second operand 37 states. [2018-04-13 15:43:19,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:19,166 INFO L93 Difference]: Finished difference Result 328 states and 329 transitions. [2018-04-13 15:43:19,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-13 15:43:19,166 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 144 [2018-04-13 15:43:19,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:19,167 INFO L225 Difference]: With dead ends: 328 [2018-04-13 15:43:19,167 INFO L226 Difference]: Without dead ends: 328 [2018-04-13 15:43:19,168 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2018-04-13 15:43:19,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2018-04-13 15:43:19,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2018-04-13 15:43:19,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-04-13 15:43:19,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 329 transitions. [2018-04-13 15:43:19,171 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 329 transitions. Word has length 144 [2018-04-13 15:43:19,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:19,172 INFO L459 AbstractCegarLoop]: Abstraction has 328 states and 329 transitions. [2018-04-13 15:43:19,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-13 15:43:19,172 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 329 transitions. [2018-04-13 15:43:19,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-04-13 15:43:19,173 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:19,173 INFO L355 BasicCegarLoop]: trace histogram [36, 36, 35, 35, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:19,173 INFO L408 AbstractCegarLoop]: === Iteration 36 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:19,173 INFO L82 PathProgramCache]: Analyzing trace with hash -311782757, now seen corresponding path program 35 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:19,176 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:19,593 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:19,594 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-04-13 15:43:19,594 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:19,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:19,594 INFO L182 omatonBuilderFactory]: Interpolants [13060#true, 13061#false, 13064#(= main_~i~0 0), 13065#(= main_~i~0 1), 13066#(= main_~i~0 2), 13067#(= main_~i~0 3), 13068#(= main_~i~0 4), 13069#(= main_~i~0 5), 13070#(= main_~i~0 6), 13071#(= main_~i~0 7), 13072#(= main_~i~0 8), 13073#(= main_~i~0 9), 13074#(= main_~i~0 10), 13075#(= main_~i~0 11), 13076#(= main_~i~0 12), 13077#(= main_~i~0 13), 13078#(= main_~i~0 14), 13079#(= main_~i~0 15), 13080#(= main_~i~0 16), 13081#(= main_~i~0 17), 13082#(= main_~i~0 18), 13083#(= main_~i~0 19), 13084#(= main_~i~0 20), 13085#(= main_~i~0 21), 13086#(= main_~i~0 22), 13087#(= main_~i~0 23), 13088#(= main_~i~0 24), 13089#(= main_~i~0 25), 13090#(= main_~i~0 26), 13091#(= main_~i~0 27), 13092#(= main_~i~0 28), 13093#(= main_~i~0 29), 13094#(= main_~i~0 30), 13095#(= main_~i~0 31), 13096#(= main_~i~0 32), 13097#(= main_~i~0 33), 13098#(= main_~i~0 34), 13099#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:19,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:19,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-04-13 15:43:19,595 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-04-13 15:43:19,595 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1298, Unknown=0, NotChecked=0, Total=1406 [2018-04-13 15:43:19,595 INFO L87 Difference]: Start difference. First operand 328 states and 329 transitions. Second operand 38 states. [2018-04-13 15:43:21,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:21,482 INFO L93 Difference]: Finished difference Result 337 states and 338 transitions. [2018-04-13 15:43:21,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-04-13 15:43:21,482 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 148 [2018-04-13 15:43:21,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:21,483 INFO L225 Difference]: With dead ends: 337 [2018-04-13 15:43:21,483 INFO L226 Difference]: Without dead ends: 337 [2018-04-13 15:43:21,484 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=1298, Unknown=0, NotChecked=0, Total=1406 [2018-04-13 15:43:21,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-04-13 15:43:21,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2018-04-13 15:43:21,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-04-13 15:43:21,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 338 transitions. [2018-04-13 15:43:21,487 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 338 transitions. Word has length 148 [2018-04-13 15:43:21,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:21,487 INFO L459 AbstractCegarLoop]: Abstraction has 337 states and 338 transitions. [2018-04-13 15:43:21,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-04-13 15:43:21,487 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 338 transitions. [2018-04-13 15:43:21,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-04-13 15:43:21,488 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:21,488 INFO L355 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:21,488 INFO L408 AbstractCegarLoop]: === Iteration 37 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:21,488 INFO L82 PathProgramCache]: Analyzing trace with hash 980709652, now seen corresponding path program 36 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:21,491 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:21,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:21,894 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:21,894 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-04-13 15:43:21,894 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:21,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:21,895 INFO L182 omatonBuilderFactory]: Interpolants [13774#true, 13775#false, 13778#(= main_~i~0 0), 13779#(= main_~i~0 1), 13780#(= main_~i~0 2), 13781#(= main_~i~0 3), 13782#(= main_~i~0 4), 13783#(= main_~i~0 5), 13784#(= main_~i~0 6), 13785#(= main_~i~0 7), 13786#(= main_~i~0 8), 13787#(= main_~i~0 9), 13788#(= main_~i~0 10), 13789#(= main_~i~0 11), 13790#(= main_~i~0 12), 13791#(= main_~i~0 13), 13792#(= main_~i~0 14), 13793#(= main_~i~0 15), 13794#(= main_~i~0 16), 13795#(= main_~i~0 17), 13796#(= main_~i~0 18), 13797#(= main_~i~0 19), 13798#(= main_~i~0 20), 13799#(= main_~i~0 21), 13800#(= main_~i~0 22), 13801#(= main_~i~0 23), 13802#(= main_~i~0 24), 13803#(= main_~i~0 25), 13804#(= main_~i~0 26), 13805#(= main_~i~0 27), 13806#(= main_~i~0 28), 13807#(= main_~i~0 29), 13808#(= main_~i~0 30), 13809#(= main_~i~0 31), 13810#(= main_~i~0 32), 13811#(= main_~i~0 33), 13812#(= main_~i~0 34), 13813#(= main_~i~0 35), 13814#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:21,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:21,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-04-13 15:43:21,895 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-04-13 15:43:21,895 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1371, Unknown=0, NotChecked=0, Total=1482 [2018-04-13 15:43:21,896 INFO L87 Difference]: Start difference. First operand 337 states and 338 transitions. Second operand 39 states. [2018-04-13 15:43:23,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:23,864 INFO L93 Difference]: Finished difference Result 346 states and 347 transitions. [2018-04-13 15:43:23,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-13 15:43:23,865 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 152 [2018-04-13 15:43:23,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:23,865 INFO L225 Difference]: With dead ends: 346 [2018-04-13 15:43:23,866 INFO L226 Difference]: Without dead ends: 346 [2018-04-13 15:43:23,866 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=1371, Unknown=0, NotChecked=0, Total=1482 [2018-04-13 15:43:23,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-04-13 15:43:23,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2018-04-13 15:43:23,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2018-04-13 15:43:23,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 347 transitions. [2018-04-13 15:43:23,868 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 347 transitions. Word has length 152 [2018-04-13 15:43:23,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:23,868 INFO L459 AbstractCegarLoop]: Abstraction has 346 states and 347 transitions. [2018-04-13 15:43:23,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-04-13 15:43:23,868 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 347 transitions. [2018-04-13 15:43:23,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-04-13 15:43:23,869 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:23,869 INFO L355 BasicCegarLoop]: trace histogram [38, 38, 37, 37, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:23,869 INFO L408 AbstractCegarLoop]: === Iteration 38 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:23,869 INFO L82 PathProgramCache]: Analyzing trace with hash 436759309, now seen corresponding path program 37 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) [2018-04-13 15:43:23,877 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:24,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:24,261 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:24,261 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-04-13 15:43:24,261 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:24,261 INFO L182 omatonBuilderFactory]: Interpolants [14528#(= main_~i~0 17), 14529#(= main_~i~0 18), 14530#(= main_~i~0 19), 14531#(= main_~i~0 20), 14532#(= main_~i~0 21), 14533#(= main_~i~0 22), 14534#(= main_~i~0 23), 14535#(= main_~i~0 24), 14536#(= main_~i~0 25), 14537#(= main_~i~0 26), 14538#(= main_~i~0 27), 14539#(= main_~i~0 28), 14540#(= main_~i~0 29), 14541#(= main_~i~0 30), 14542#(= main_~i~0 31), 14543#(= main_~i~0 32), 14544#(= main_~i~0 33), 14545#(= main_~i~0 34), 14546#(= main_~i~0 35), 14547#(= main_~i~0 36), 14548#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 14507#true, 14508#false, 14511#(= main_~i~0 0), 14512#(= main_~i~0 1), 14513#(= main_~i~0 2), 14514#(= main_~i~0 3), 14515#(= main_~i~0 4), 14516#(= main_~i~0 5), 14517#(= main_~i~0 6), 14518#(= main_~i~0 7), 14519#(= main_~i~0 8), 14520#(= main_~i~0 9), 14521#(= main_~i~0 10), 14522#(= main_~i~0 11), 14523#(= main_~i~0 12), 14524#(= main_~i~0 13), 14525#(= main_~i~0 14), 14526#(= main_~i~0 15), 14527#(= main_~i~0 16)] [2018-04-13 15:43:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:24,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-13 15:43:24,262 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-13 15:43:24,262 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1446, Unknown=0, NotChecked=0, Total=1560 [2018-04-13 15:43:24,262 INFO L87 Difference]: Start difference. First operand 346 states and 347 transitions. Second operand 40 states. [2018-04-13 15:43:26,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:26,381 INFO L93 Difference]: Finished difference Result 355 states and 356 transitions. [2018-04-13 15:43:26,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-13 15:43:26,381 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 156 [2018-04-13 15:43:26,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:26,382 INFO L225 Difference]: With dead ends: 355 [2018-04-13 15:43:26,382 INFO L226 Difference]: Without dead ends: 355 [2018-04-13 15:43:26,383 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=1446, Unknown=0, NotChecked=0, Total=1560 [2018-04-13 15:43:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2018-04-13 15:43:26,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2018-04-13 15:43:26,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2018-04-13 15:43:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 356 transitions. [2018-04-13 15:43:26,385 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 356 transitions. Word has length 156 [2018-04-13 15:43:26,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:26,385 INFO L459 AbstractCegarLoop]: Abstraction has 355 states and 356 transitions. [2018-04-13 15:43:26,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-13 15:43:26,385 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 356 transitions. [2018-04-13 15:43:26,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-04-13 15:43:26,386 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:26,386 INFO L355 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:26,386 INFO L408 AbstractCegarLoop]: === Iteration 39 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:26,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1163083642, now seen corresponding path program 38 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:26,388 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:26,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:26,790 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:26,790 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-04-13 15:43:26,790 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:26,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:26,790 INFO L182 omatonBuilderFactory]: Interpolants [15296#(= main_~i~0 33), 15297#(= main_~i~0 34), 15298#(= main_~i~0 35), 15299#(= main_~i~0 36), 15300#(= main_~i~0 37), 15301#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 15259#true, 15260#false, 15263#(= main_~i~0 0), 15264#(= main_~i~0 1), 15265#(= main_~i~0 2), 15266#(= main_~i~0 3), 15267#(= main_~i~0 4), 15268#(= main_~i~0 5), 15269#(= main_~i~0 6), 15270#(= main_~i~0 7), 15271#(= main_~i~0 8), 15272#(= main_~i~0 9), 15273#(= main_~i~0 10), 15274#(= main_~i~0 11), 15275#(= main_~i~0 12), 15276#(= main_~i~0 13), 15277#(= main_~i~0 14), 15278#(= main_~i~0 15), 15279#(= main_~i~0 16), 15280#(= main_~i~0 17), 15281#(= main_~i~0 18), 15282#(= main_~i~0 19), 15283#(= main_~i~0 20), 15284#(= main_~i~0 21), 15285#(= main_~i~0 22), 15286#(= main_~i~0 23), 15287#(= main_~i~0 24), 15288#(= main_~i~0 25), 15289#(= main_~i~0 26), 15290#(= main_~i~0 27), 15291#(= main_~i~0 28), 15292#(= main_~i~0 29), 15293#(= main_~i~0 30), 15294#(= main_~i~0 31), 15295#(= main_~i~0 32)] [2018-04-13 15:43:26,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:26,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-04-13 15:43:26,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-04-13 15:43:26,791 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640 [2018-04-13 15:43:26,791 INFO L87 Difference]: Start difference. First operand 355 states and 356 transitions. Second operand 41 states. [2018-04-13 15:43:28,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:28,913 INFO L93 Difference]: Finished difference Result 364 states and 365 transitions. [2018-04-13 15:43:28,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-13 15:43:28,913 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 160 [2018-04-13 15:43:28,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:28,914 INFO L225 Difference]: With dead ends: 364 [2018-04-13 15:43:28,914 INFO L226 Difference]: Without dead ends: 364 [2018-04-13 15:43:28,914 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640 [2018-04-13 15:43:28,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2018-04-13 15:43:28,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2018-04-13 15:43:28,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2018-04-13 15:43:28,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 365 transitions. [2018-04-13 15:43:28,917 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 365 transitions. Word has length 160 [2018-04-13 15:43:28,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:28,917 INFO L459 AbstractCegarLoop]: Abstraction has 364 states and 365 transitions. [2018-04-13 15:43:28,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-04-13 15:43:28,918 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 365 transitions. [2018-04-13 15:43:28,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-04-13 15:43:28,918 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:28,918 INFO L355 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:28,918 INFO L408 AbstractCegarLoop]: === Iteration 40 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:28,918 INFO L82 PathProgramCache]: Analyzing trace with hash 499626367, now seen corresponding path program 39 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:28,920 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:29,362 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:29,362 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-04-13 15:43:29,362 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:29,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:29,362 INFO L182 omatonBuilderFactory]: Interpolants [16064#(= main_~i~0 30), 16065#(= main_~i~0 31), 16066#(= main_~i~0 32), 16067#(= main_~i~0 33), 16068#(= main_~i~0 34), 16069#(= main_~i~0 35), 16070#(= main_~i~0 36), 16071#(= main_~i~0 37), 16072#(= main_~i~0 38), 16073#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 16030#true, 16031#false, 16034#(= main_~i~0 0), 16035#(= main_~i~0 1), 16036#(= main_~i~0 2), 16037#(= main_~i~0 3), 16038#(= main_~i~0 4), 16039#(= main_~i~0 5), 16040#(= main_~i~0 6), 16041#(= main_~i~0 7), 16042#(= main_~i~0 8), 16043#(= main_~i~0 9), 16044#(= main_~i~0 10), 16045#(= main_~i~0 11), 16046#(= main_~i~0 12), 16047#(= main_~i~0 13), 16048#(= main_~i~0 14), 16049#(= main_~i~0 15), 16050#(= main_~i~0 16), 16051#(= main_~i~0 17), 16052#(= main_~i~0 18), 16053#(= main_~i~0 19), 16054#(= main_~i~0 20), 16055#(= main_~i~0 21), 16056#(= main_~i~0 22), 16057#(= main_~i~0 23), 16058#(= main_~i~0 24), 16059#(= main_~i~0 25), 16060#(= main_~i~0 26), 16061#(= main_~i~0 27), 16062#(= main_~i~0 28), 16063#(= main_~i~0 29)] [2018-04-13 15:43:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:29,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-13 15:43:29,363 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-13 15:43:29,363 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1602, Unknown=0, NotChecked=0, Total=1722 [2018-04-13 15:43:29,363 INFO L87 Difference]: Start difference. First operand 364 states and 365 transitions. Second operand 42 states. [2018-04-13 15:43:31,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:31,640 INFO L93 Difference]: Finished difference Result 373 states and 374 transitions. [2018-04-13 15:43:31,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-13 15:43:31,640 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 164 [2018-04-13 15:43:31,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:31,641 INFO L225 Difference]: With dead ends: 373 [2018-04-13 15:43:31,641 INFO L226 Difference]: Without dead ends: 373 [2018-04-13 15:43:31,641 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=1602, Unknown=0, NotChecked=0, Total=1722 [2018-04-13 15:43:31,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2018-04-13 15:43:31,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2018-04-13 15:43:31,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2018-04-13 15:43:31,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 374 transitions. [2018-04-13 15:43:31,644 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 374 transitions. Word has length 164 [2018-04-13 15:43:31,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:31,645 INFO L459 AbstractCegarLoop]: Abstraction has 373 states and 374 transitions. [2018-04-13 15:43:31,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-13 15:43:31,645 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 374 transitions. [2018-04-13 15:43:31,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-04-13 15:43:31,646 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:31,646 INFO L355 BasicCegarLoop]: trace histogram [41, 41, 40, 40, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:31,646 INFO L408 AbstractCegarLoop]: === Iteration 41 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:31,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1482719752, now seen corresponding path program 40 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:31,649 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:32,139 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:32,139 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-04-13 15:43:32,139 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:32,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:32,140 INFO L182 omatonBuilderFactory]: Interpolants [16832#(= main_~i~0 8), 16833#(= main_~i~0 9), 16834#(= main_~i~0 10), 16835#(= main_~i~0 11), 16836#(= main_~i~0 12), 16837#(= main_~i~0 13), 16838#(= main_~i~0 14), 16839#(= main_~i~0 15), 16840#(= main_~i~0 16), 16841#(= main_~i~0 17), 16842#(= main_~i~0 18), 16843#(= main_~i~0 19), 16844#(= main_~i~0 20), 16845#(= main_~i~0 21), 16846#(= main_~i~0 22), 16847#(= main_~i~0 23), 16848#(= main_~i~0 24), 16849#(= main_~i~0 25), 16850#(= main_~i~0 26), 16851#(= main_~i~0 27), 16852#(= main_~i~0 28), 16853#(= main_~i~0 29), 16854#(= main_~i~0 30), 16855#(= main_~i~0 31), 16856#(= main_~i~0 32), 16857#(= main_~i~0 33), 16858#(= main_~i~0 34), 16859#(= main_~i~0 35), 16860#(= main_~i~0 36), 16861#(= main_~i~0 37), 16862#(= main_~i~0 38), 16863#(= main_~i~0 39), 16864#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 16820#true, 16821#false, 16824#(= main_~i~0 0), 16825#(= main_~i~0 1), 16826#(= main_~i~0 2), 16827#(= main_~i~0 3), 16828#(= main_~i~0 4), 16829#(= main_~i~0 5), 16830#(= main_~i~0 6), 16831#(= main_~i~0 7)] [2018-04-13 15:43:32,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:32,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-13 15:43:32,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-13 15:43:32,141 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1683, Unknown=0, NotChecked=0, Total=1806 [2018-04-13 15:43:32,141 INFO L87 Difference]: Start difference. First operand 373 states and 374 transitions. Second operand 43 states. [2018-04-13 15:43:34,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:34,510 INFO L93 Difference]: Finished difference Result 382 states and 383 transitions. [2018-04-13 15:43:34,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-04-13 15:43:34,511 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 168 [2018-04-13 15:43:34,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:34,512 INFO L225 Difference]: With dead ends: 382 [2018-04-13 15:43:34,512 INFO L226 Difference]: Without dead ends: 382 [2018-04-13 15:43:34,512 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=1683, Unknown=0, NotChecked=0, Total=1806 [2018-04-13 15:43:34,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-04-13 15:43:34,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-04-13 15:43:34,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-04-13 15:43:34,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 383 transitions. [2018-04-13 15:43:34,515 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 383 transitions. Word has length 168 [2018-04-13 15:43:34,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:34,515 INFO L459 AbstractCegarLoop]: Abstraction has 382 states and 383 transitions. [2018-04-13 15:43:34,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-13 15:43:34,515 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 383 transitions. [2018-04-13 15:43:34,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-04-13 15:43:34,516 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:34,516 INFO L355 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:34,516 INFO L408 AbstractCegarLoop]: === Iteration 42 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:34,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1353030159, now seen corresponding path program 41 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:34,518 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:34,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3403 backedges. 0 proven. 3403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:34,980 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:34,980 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-04-13 15:43:34,981 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:34,981 INFO L182 omatonBuilderFactory]: Interpolants [17664#(= main_~i~0 31), 17665#(= main_~i~0 32), 17666#(= main_~i~0 33), 17667#(= main_~i~0 34), 17668#(= main_~i~0 35), 17669#(= main_~i~0 36), 17670#(= main_~i~0 37), 17671#(= main_~i~0 38), 17672#(= main_~i~0 39), 17673#(= main_~i~0 40), 17674#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 17629#true, 17630#false, 17633#(= main_~i~0 0), 17634#(= main_~i~0 1), 17635#(= main_~i~0 2), 17636#(= main_~i~0 3), 17637#(= main_~i~0 4), 17638#(= main_~i~0 5), 17639#(= main_~i~0 6), 17640#(= main_~i~0 7), 17641#(= main_~i~0 8), 17642#(= main_~i~0 9), 17643#(= main_~i~0 10), 17644#(= main_~i~0 11), 17645#(= main_~i~0 12), 17646#(= main_~i~0 13), 17647#(= main_~i~0 14), 17648#(= main_~i~0 15), 17649#(= main_~i~0 16), 17650#(= main_~i~0 17), 17651#(= main_~i~0 18), 17652#(= main_~i~0 19), 17653#(= main_~i~0 20), 17654#(= main_~i~0 21), 17655#(= main_~i~0 22), 17656#(= main_~i~0 23), 17657#(= main_~i~0 24), 17658#(= main_~i~0 25), 17659#(= main_~i~0 26), 17660#(= main_~i~0 27), 17661#(= main_~i~0 28), 17662#(= main_~i~0 29), 17663#(= main_~i~0 30)] [2018-04-13 15:43:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3403 backedges. 0 proven. 3403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:34,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-04-13 15:43:34,981 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-04-13 15:43:34,982 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1766, Unknown=0, NotChecked=0, Total=1892 [2018-04-13 15:43:34,982 INFO L87 Difference]: Start difference. First operand 382 states and 383 transitions. Second operand 44 states. [2018-04-13 15:43:37,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:37,531 INFO L93 Difference]: Finished difference Result 391 states and 392 transitions. [2018-04-13 15:43:37,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-13 15:43:37,531 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 172 [2018-04-13 15:43:37,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:37,532 INFO L225 Difference]: With dead ends: 391 [2018-04-13 15:43:37,532 INFO L226 Difference]: Without dead ends: 391 [2018-04-13 15:43:37,532 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=1766, Unknown=0, NotChecked=0, Total=1892 [2018-04-13 15:43:37,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2018-04-13 15:43:37,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2018-04-13 15:43:37,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2018-04-13 15:43:37,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 392 transitions. [2018-04-13 15:43:37,534 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 392 transitions. Word has length 172 [2018-04-13 15:43:37,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:37,535 INFO L459 AbstractCegarLoop]: Abstraction has 391 states and 392 transitions. [2018-04-13 15:43:37,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-04-13 15:43:37,535 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 392 transitions. [2018-04-13 15:43:37,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-04-13 15:43:37,535 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:37,535 INFO L355 BasicCegarLoop]: trace histogram [43, 43, 42, 42, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:37,535 INFO L408 AbstractCegarLoop]: === Iteration 43 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:37,535 INFO L82 PathProgramCache]: Analyzing trace with hash 251570538, now seen corresponding path program 42 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:37,538 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:38,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 3570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:38,023 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:38,023 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-04-13 15:43:38,024 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:38,024 INFO L182 omatonBuilderFactory]: Interpolants [18496#(= main_~i~0 35), 18497#(= main_~i~0 36), 18498#(= main_~i~0 37), 18499#(= main_~i~0 38), 18500#(= main_~i~0 39), 18501#(= main_~i~0 40), 18502#(= main_~i~0 41), 18503#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 18457#true, 18458#false, 18461#(= main_~i~0 0), 18462#(= main_~i~0 1), 18463#(= main_~i~0 2), 18464#(= main_~i~0 3), 18465#(= main_~i~0 4), 18466#(= main_~i~0 5), 18467#(= main_~i~0 6), 18468#(= main_~i~0 7), 18469#(= main_~i~0 8), 18470#(= main_~i~0 9), 18471#(= main_~i~0 10), 18472#(= main_~i~0 11), 18473#(= main_~i~0 12), 18474#(= main_~i~0 13), 18475#(= main_~i~0 14), 18476#(= main_~i~0 15), 18477#(= main_~i~0 16), 18478#(= main_~i~0 17), 18479#(= main_~i~0 18), 18480#(= main_~i~0 19), 18481#(= main_~i~0 20), 18482#(= main_~i~0 21), 18483#(= main_~i~0 22), 18484#(= main_~i~0 23), 18485#(= main_~i~0 24), 18486#(= main_~i~0 25), 18487#(= main_~i~0 26), 18488#(= main_~i~0 27), 18489#(= main_~i~0 28), 18490#(= main_~i~0 29), 18491#(= main_~i~0 30), 18492#(= main_~i~0 31), 18493#(= main_~i~0 32), 18494#(= main_~i~0 33), 18495#(= main_~i~0 34)] [2018-04-13 15:43:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 3570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:38,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-04-13 15:43:38,024 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-04-13 15:43:38,025 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1851, Unknown=0, NotChecked=0, Total=1980 [2018-04-13 15:43:38,025 INFO L87 Difference]: Start difference. First operand 391 states and 392 transitions. Second operand 45 states. [2018-04-13 15:43:40,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:40,695 INFO L93 Difference]: Finished difference Result 400 states and 401 transitions. [2018-04-13 15:43:40,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-13 15:43:40,695 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 176 [2018-04-13 15:43:40,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:40,696 INFO L225 Difference]: With dead ends: 400 [2018-04-13 15:43:40,696 INFO L226 Difference]: Without dead ends: 400 [2018-04-13 15:43:40,697 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=1851, Unknown=0, NotChecked=0, Total=1980 [2018-04-13 15:43:40,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2018-04-13 15:43:40,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2018-04-13 15:43:40,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2018-04-13 15:43:40,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 401 transitions. [2018-04-13 15:43:40,700 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 401 transitions. Word has length 176 [2018-04-13 15:43:40,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:40,700 INFO L459 AbstractCegarLoop]: Abstraction has 400 states and 401 transitions. [2018-04-13 15:43:40,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-04-13 15:43:40,700 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 401 transitions. [2018-04-13 15:43:40,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-04-13 15:43:40,701 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:40,701 INFO L355 BasicCegarLoop]: trace histogram [44, 44, 43, 43, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:40,701 INFO L408 AbstractCegarLoop]: === Iteration 44 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:40,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1284339613, now seen corresponding path program 43 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:40,705 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:41,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 3741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:41,281 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:41,281 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-04-13 15:43:41,282 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:41,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:41,282 INFO L182 omatonBuilderFactory]: Interpolants [19328#(= main_~i~0 20), 19329#(= main_~i~0 21), 19330#(= main_~i~0 22), 19331#(= main_~i~0 23), 19332#(= main_~i~0 24), 19333#(= main_~i~0 25), 19334#(= main_~i~0 26), 19335#(= main_~i~0 27), 19336#(= main_~i~0 28), 19337#(= main_~i~0 29), 19338#(= main_~i~0 30), 19339#(= main_~i~0 31), 19340#(= main_~i~0 32), 19341#(= main_~i~0 33), 19342#(= main_~i~0 34), 19343#(= main_~i~0 35), 19344#(= main_~i~0 36), 19345#(= main_~i~0 37), 19346#(= main_~i~0 38), 19347#(= main_~i~0 39), 19348#(= main_~i~0 40), 19349#(= main_~i~0 41), 19350#(= main_~i~0 42), 19351#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 19304#true, 19305#false, 19308#(= main_~i~0 0), 19309#(= main_~i~0 1), 19310#(= main_~i~0 2), 19311#(= main_~i~0 3), 19312#(= main_~i~0 4), 19313#(= main_~i~0 5), 19314#(= main_~i~0 6), 19315#(= main_~i~0 7), 19316#(= main_~i~0 8), 19317#(= main_~i~0 9), 19318#(= main_~i~0 10), 19319#(= main_~i~0 11), 19320#(= main_~i~0 12), 19321#(= main_~i~0 13), 19322#(= main_~i~0 14), 19323#(= main_~i~0 15), 19324#(= main_~i~0 16), 19325#(= main_~i~0 17), 19326#(= main_~i~0 18), 19327#(= main_~i~0 19)] [2018-04-13 15:43:41,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 3741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:41,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-04-13 15:43:41,282 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-04-13 15:43:41,283 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1938, Unknown=0, NotChecked=0, Total=2070 [2018-04-13 15:43:41,283 INFO L87 Difference]: Start difference. First operand 400 states and 401 transitions. Second operand 46 states. [2018-04-13 15:43:44,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:44,040 INFO L93 Difference]: Finished difference Result 409 states and 410 transitions. [2018-04-13 15:43:44,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-04-13 15:43:44,040 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 180 [2018-04-13 15:43:44,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:44,041 INFO L225 Difference]: With dead ends: 409 [2018-04-13 15:43:44,041 INFO L226 Difference]: Without dead ends: 409 [2018-04-13 15:43:44,042 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=1938, Unknown=0, NotChecked=0, Total=2070 [2018-04-13 15:43:44,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2018-04-13 15:43:44,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2018-04-13 15:43:44,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2018-04-13 15:43:44,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 410 transitions. [2018-04-13 15:43:44,044 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 410 transitions. Word has length 180 [2018-04-13 15:43:44,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:44,044 INFO L459 AbstractCegarLoop]: Abstraction has 409 states and 410 transitions. [2018-04-13 15:43:44,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-04-13 15:43:44,044 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 410 transitions. [2018-04-13 15:43:44,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-04-13 15:43:44,045 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:44,045 INFO L355 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:44,045 INFO L408 AbstractCegarLoop]: === Iteration 45 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:44,045 INFO L82 PathProgramCache]: Analyzing trace with hash 746341084, now seen corresponding path program 44 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:44,047 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3916 backedges. 0 proven. 3916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:44,564 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:44,564 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2018-04-13 15:43:44,564 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:44,565 INFO L182 omatonBuilderFactory]: Interpolants [20170#true, 20171#false, 20174#(= main_~i~0 0), 20175#(= main_~i~0 1), 20176#(= main_~i~0 2), 20177#(= main_~i~0 3), 20178#(= main_~i~0 4), 20179#(= main_~i~0 5), 20180#(= main_~i~0 6), 20181#(= main_~i~0 7), 20182#(= main_~i~0 8), 20183#(= main_~i~0 9), 20184#(= main_~i~0 10), 20185#(= main_~i~0 11), 20186#(= main_~i~0 12), 20187#(= main_~i~0 13), 20188#(= main_~i~0 14), 20189#(= main_~i~0 15), 20190#(= main_~i~0 16), 20191#(= main_~i~0 17), 20192#(= main_~i~0 18), 20193#(= main_~i~0 19), 20194#(= main_~i~0 20), 20195#(= main_~i~0 21), 20196#(= main_~i~0 22), 20197#(= main_~i~0 23), 20198#(= main_~i~0 24), 20199#(= main_~i~0 25), 20200#(= main_~i~0 26), 20201#(= main_~i~0 27), 20202#(= main_~i~0 28), 20203#(= main_~i~0 29), 20204#(= main_~i~0 30), 20205#(= main_~i~0 31), 20206#(= main_~i~0 32), 20207#(= main_~i~0 33), 20208#(= main_~i~0 34), 20209#(= main_~i~0 35), 20210#(= main_~i~0 36), 20211#(= main_~i~0 37), 20212#(= main_~i~0 38), 20213#(= main_~i~0 39), 20214#(= main_~i~0 40), 20215#(= main_~i~0 41), 20216#(= main_~i~0 42), 20217#(= main_~i~0 43), 20218#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 3916 backedges. 0 proven. 3916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:44,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-04-13 15:43:44,565 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-04-13 15:43:44,565 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=2027, Unknown=0, NotChecked=0, Total=2162 [2018-04-13 15:43:44,565 INFO L87 Difference]: Start difference. First operand 409 states and 410 transitions. Second operand 47 states. [2018-04-13 15:43:47,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:47,413 INFO L93 Difference]: Finished difference Result 418 states and 419 transitions. [2018-04-13 15:43:47,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-13 15:43:47,413 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 184 [2018-04-13 15:43:47,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:47,414 INFO L225 Difference]: With dead ends: 418 [2018-04-13 15:43:47,414 INFO L226 Difference]: Without dead ends: 418 [2018-04-13 15:43:47,414 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=2027, Unknown=0, NotChecked=0, Total=2162 [2018-04-13 15:43:47,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2018-04-13 15:43:47,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2018-04-13 15:43:47,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2018-04-13 15:43:47,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 419 transitions. [2018-04-13 15:43:47,416 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 419 transitions. Word has length 184 [2018-04-13 15:43:47,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:47,417 INFO L459 AbstractCegarLoop]: Abstraction has 418 states and 419 transitions. [2018-04-13 15:43:47,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-04-13 15:43:47,417 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 419 transitions. [2018-04-13 15:43:47,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-04-13 15:43:47,417 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:47,417 INFO L355 BasicCegarLoop]: trace histogram [46, 46, 45, 45, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:47,417 INFO L408 AbstractCegarLoop]: === Iteration 46 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:47,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1019353301, now seen corresponding path program 45 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:47,421 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:47,988 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:48,004 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:48,005 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-04-13 15:43:48,005 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:48,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:48,005 INFO L182 omatonBuilderFactory]: Interpolants [21056#false, 21059#(= main_~i~0 0), 21060#(= main_~i~0 1), 21061#(= main_~i~0 2), 21062#(= main_~i~0 3), 21063#(= main_~i~0 4), 21064#(= main_~i~0 5), 21065#(= main_~i~0 6), 21066#(= main_~i~0 7), 21067#(= main_~i~0 8), 21068#(= main_~i~0 9), 21069#(= main_~i~0 10), 21070#(= main_~i~0 11), 21071#(= main_~i~0 12), 21072#(= main_~i~0 13), 21073#(= main_~i~0 14), 21074#(= main_~i~0 15), 21075#(= main_~i~0 16), 21076#(= main_~i~0 17), 21077#(= main_~i~0 18), 21078#(= main_~i~0 19), 21079#(= main_~i~0 20), 21080#(= main_~i~0 21), 21081#(= main_~i~0 22), 21082#(= main_~i~0 23), 21083#(= main_~i~0 24), 21084#(= main_~i~0 25), 21085#(= main_~i~0 26), 21086#(= main_~i~0 27), 21087#(= main_~i~0 28), 21088#(= main_~i~0 29), 21089#(= main_~i~0 30), 21090#(= main_~i~0 31), 21091#(= main_~i~0 32), 21092#(= main_~i~0 33), 21093#(= main_~i~0 34), 21094#(= main_~i~0 35), 21095#(= main_~i~0 36), 21096#(= main_~i~0 37), 21097#(= main_~i~0 38), 21098#(= main_~i~0 39), 21099#(= main_~i~0 40), 21100#(= main_~i~0 41), 21101#(= main_~i~0 42), 21102#(= main_~i~0 43), 21103#(= main_~i~0 44), 21104#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 21055#true] [2018-04-13 15:43:48,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:48,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-04-13 15:43:48,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-04-13 15:43:48,006 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=2118, Unknown=0, NotChecked=0, Total=2256 [2018-04-13 15:43:48,006 INFO L87 Difference]: Start difference. First operand 418 states and 419 transitions. Second operand 48 states. [2018-04-13 15:43:50,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:50,961 INFO L93 Difference]: Finished difference Result 427 states and 428 transitions. [2018-04-13 15:43:50,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-13 15:43:50,961 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 188 [2018-04-13 15:43:50,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:50,962 INFO L225 Difference]: With dead ends: 427 [2018-04-13 15:43:50,962 INFO L226 Difference]: Without dead ends: 427 [2018-04-13 15:43:50,962 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=138, Invalid=2118, Unknown=0, NotChecked=0, Total=2256 [2018-04-13 15:43:50,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2018-04-13 15:43:50,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2018-04-13 15:43:50,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2018-04-13 15:43:50,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 428 transitions. [2018-04-13 15:43:50,964 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 428 transitions. Word has length 188 [2018-04-13 15:43:50,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:50,964 INFO L459 AbstractCegarLoop]: Abstraction has 427 states and 428 transitions. [2018-04-13 15:43:50,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-04-13 15:43:50,964 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 428 transitions. [2018-04-13 15:43:50,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-04-13 15:43:50,965 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:50,965 INFO L355 BasicCegarLoop]: trace histogram [47, 47, 46, 46, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:50,965 INFO L408 AbstractCegarLoop]: === Iteration 47 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:50,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1774864974, now seen corresponding path program 46 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:50,967 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:51,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:51,557 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:51,557 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2018-04-13 15:43:51,557 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:51,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:51,557 INFO L182 omatonBuilderFactory]: Interpolants [21959#true, 21960#false, 21963#(= main_~i~0 0), 21964#(= main_~i~0 1), 21965#(= main_~i~0 2), 21966#(= main_~i~0 3), 21967#(= main_~i~0 4), 21968#(= main_~i~0 5), 21969#(= main_~i~0 6), 21970#(= main_~i~0 7), 21971#(= main_~i~0 8), 21972#(= main_~i~0 9), 21973#(= main_~i~0 10), 21974#(= main_~i~0 11), 21975#(= main_~i~0 12), 21976#(= main_~i~0 13), 21977#(= main_~i~0 14), 21978#(= main_~i~0 15), 21979#(= main_~i~0 16), 21980#(= main_~i~0 17), 21981#(= main_~i~0 18), 21982#(= main_~i~0 19), 21983#(= main_~i~0 20), 21984#(= main_~i~0 21), 21985#(= main_~i~0 22), 21986#(= main_~i~0 23), 21987#(= main_~i~0 24), 21988#(= main_~i~0 25), 21989#(= main_~i~0 26), 21990#(= main_~i~0 27), 21991#(= main_~i~0 28), 21992#(= main_~i~0 29), 21993#(= main_~i~0 30), 21994#(= main_~i~0 31), 21995#(= main_~i~0 32), 21996#(= main_~i~0 33), 21997#(= main_~i~0 34), 21998#(= main_~i~0 35), 21999#(= main_~i~0 36), 22000#(= main_~i~0 37), 22001#(= main_~i~0 38), 22002#(= main_~i~0 39), 22003#(= main_~i~0 40), 22004#(= main_~i~0 41), 22005#(= main_~i~0 42), 22006#(= main_~i~0 43), 22007#(= main_~i~0 44), 22008#(= main_~i~0 45), 22009#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:51,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-04-13 15:43:51,558 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-04-13 15:43:51,558 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=2211, Unknown=0, NotChecked=0, Total=2352 [2018-04-13 15:43:51,558 INFO L87 Difference]: Start difference. First operand 427 states and 428 transitions. Second operand 49 states. [2018-04-13 15:43:54,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:54,681 INFO L93 Difference]: Finished difference Result 436 states and 437 transitions. [2018-04-13 15:43:54,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-04-13 15:43:54,681 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 192 [2018-04-13 15:43:54,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:54,682 INFO L225 Difference]: With dead ends: 436 [2018-04-13 15:43:54,682 INFO L226 Difference]: Without dead ends: 436 [2018-04-13 15:43:54,682 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=2211, Unknown=0, NotChecked=0, Total=2352 [2018-04-13 15:43:54,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-04-13 15:43:54,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2018-04-13 15:43:54,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2018-04-13 15:43:54,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 437 transitions. [2018-04-13 15:43:54,685 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 437 transitions. Word has length 192 [2018-04-13 15:43:54,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:54,685 INFO L459 AbstractCegarLoop]: Abstraction has 436 states and 437 transitions. [2018-04-13 15:43:54,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-04-13 15:43:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 437 transitions. [2018-04-13 15:43:54,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-04-13 15:43:54,685 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:54,685 INFO L355 BasicCegarLoop]: trace histogram [48, 48, 47, 47, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:54,686 INFO L408 AbstractCegarLoop]: === Iteration 48 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:54,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1946478777, now seen corresponding path program 47 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:54,688 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:55,278 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:55,278 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-04-13 15:43:55,278 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:55,279 INFO L182 omatonBuilderFactory]: Interpolants [22912#(= main_~i~0 26), 22913#(= main_~i~0 27), 22914#(= main_~i~0 28), 22915#(= main_~i~0 29), 22916#(= main_~i~0 30), 22917#(= main_~i~0 31), 22918#(= main_~i~0 32), 22919#(= main_~i~0 33), 22920#(= main_~i~0 34), 22921#(= main_~i~0 35), 22922#(= main_~i~0 36), 22923#(= main_~i~0 37), 22924#(= main_~i~0 38), 22925#(= main_~i~0 39), 22926#(= main_~i~0 40), 22927#(= main_~i~0 41), 22928#(= main_~i~0 42), 22929#(= main_~i~0 43), 22930#(= main_~i~0 44), 22931#(= main_~i~0 45), 22932#(= main_~i~0 46), 22933#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 22882#true, 22883#false, 22886#(= main_~i~0 0), 22887#(= main_~i~0 1), 22888#(= main_~i~0 2), 22889#(= main_~i~0 3), 22890#(= main_~i~0 4), 22891#(= main_~i~0 5), 22892#(= main_~i~0 6), 22893#(= main_~i~0 7), 22894#(= main_~i~0 8), 22895#(= main_~i~0 9), 22896#(= main_~i~0 10), 22897#(= main_~i~0 11), 22898#(= main_~i~0 12), 22899#(= main_~i~0 13), 22900#(= main_~i~0 14), 22901#(= main_~i~0 15), 22902#(= main_~i~0 16), 22903#(= main_~i~0 17), 22904#(= main_~i~0 18), 22905#(= main_~i~0 19), 22906#(= main_~i~0 20), 22907#(= main_~i~0 21), 22908#(= main_~i~0 22), 22909#(= main_~i~0 23), 22910#(= main_~i~0 24), 22911#(= main_~i~0 25)] [2018-04-13 15:43:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:55,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-04-13 15:43:55,279 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-04-13 15:43:55,279 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=2306, Unknown=0, NotChecked=0, Total=2450 [2018-04-13 15:43:55,280 INFO L87 Difference]: Start difference. First operand 436 states and 437 transitions. Second operand 50 states. [2018-04-13 15:43:58,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:43:58,486 INFO L93 Difference]: Finished difference Result 445 states and 446 transitions. [2018-04-13 15:43:58,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-04-13 15:43:58,487 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 196 [2018-04-13 15:43:58,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:43:58,488 INFO L225 Difference]: With dead ends: 445 [2018-04-13 15:43:58,488 INFO L226 Difference]: Without dead ends: 445 [2018-04-13 15:43:58,488 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=144, Invalid=2306, Unknown=0, NotChecked=0, Total=2450 [2018-04-13 15:43:58,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2018-04-13 15:43:58,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2018-04-13 15:43:58,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2018-04-13 15:43:58,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 446 transitions. [2018-04-13 15:43:58,490 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 446 transitions. Word has length 196 [2018-04-13 15:43:58,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:43:58,490 INFO L459 AbstractCegarLoop]: Abstraction has 445 states and 446 transitions. [2018-04-13 15:43:58,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-04-13 15:43:58,490 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 446 transitions. [2018-04-13 15:43:58,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-04-13 15:43:58,491 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:43:58,491 INFO L355 BasicCegarLoop]: trace histogram [49, 49, 48, 48, 1, 1, 1, 1, 1, 1] [2018-04-13 15:43:58,491 INFO L408 AbstractCegarLoop]: === Iteration 49 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:43:58,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1587199936, now seen corresponding path program 48 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:43:58,493 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:43:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:43:59,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4656 backedges. 0 proven. 4656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:59,168 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:43:59,168 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2018-04-13 15:43:59,168 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:43:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:59,169 INFO L182 omatonBuilderFactory]: Interpolants [23824#true, 23825#false, 23828#(= main_~i~0 0), 23829#(= main_~i~0 1), 23830#(= main_~i~0 2), 23831#(= main_~i~0 3), 23832#(= main_~i~0 4), 23833#(= main_~i~0 5), 23834#(= main_~i~0 6), 23835#(= main_~i~0 7), 23836#(= main_~i~0 8), 23837#(= main_~i~0 9), 23838#(= main_~i~0 10), 23839#(= main_~i~0 11), 23840#(= main_~i~0 12), 23841#(= main_~i~0 13), 23842#(= main_~i~0 14), 23843#(= main_~i~0 15), 23844#(= main_~i~0 16), 23845#(= main_~i~0 17), 23846#(= main_~i~0 18), 23847#(= main_~i~0 19), 23848#(= main_~i~0 20), 23849#(= main_~i~0 21), 23850#(= main_~i~0 22), 23851#(= main_~i~0 23), 23852#(= main_~i~0 24), 23853#(= main_~i~0 25), 23854#(= main_~i~0 26), 23855#(= main_~i~0 27), 23856#(= main_~i~0 28), 23857#(= main_~i~0 29), 23858#(= main_~i~0 30), 23859#(= main_~i~0 31), 23860#(= main_~i~0 32), 23861#(= main_~i~0 33), 23862#(= main_~i~0 34), 23863#(= main_~i~0 35), 23864#(= main_~i~0 36), 23865#(= main_~i~0 37), 23866#(= main_~i~0 38), 23867#(= main_~i~0 39), 23868#(= main_~i~0 40), 23869#(= main_~i~0 41), 23870#(= main_~i~0 42), 23871#(= main_~i~0 43), 23872#(= main_~i~0 44), 23873#(= main_~i~0 45), 23874#(= main_~i~0 46), 23875#(= main_~i~0 47), 23876#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:43:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4656 backedges. 0 proven. 4656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:43:59,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-04-13 15:43:59,169 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-04-13 15:43:59,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=2403, Unknown=0, NotChecked=0, Total=2550 [2018-04-13 15:43:59,169 INFO L87 Difference]: Start difference. First operand 445 states and 446 transitions. Second operand 51 states. [2018-04-13 15:44:02,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:02,931 INFO L93 Difference]: Finished difference Result 454 states and 455 transitions. [2018-04-13 15:44:02,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-13 15:44:02,931 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 200 [2018-04-13 15:44:02,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:02,932 INFO L225 Difference]: With dead ends: 454 [2018-04-13 15:44:02,932 INFO L226 Difference]: Without dead ends: 454 [2018-04-13 15:44:02,932 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=2403, Unknown=0, NotChecked=0, Total=2550 [2018-04-13 15:44:02,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2018-04-13 15:44:02,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2018-04-13 15:44:02,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2018-04-13 15:44:02,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 455 transitions. [2018-04-13 15:44:02,934 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 455 transitions. Word has length 200 [2018-04-13 15:44:02,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:02,935 INFO L459 AbstractCegarLoop]: Abstraction has 454 states and 455 transitions. [2018-04-13 15:44:02,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-04-13 15:44:02,935 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 455 transitions. [2018-04-13 15:44:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-04-13 15:44:02,935 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:02,935 INFO L355 BasicCegarLoop]: trace histogram [50, 50, 49, 49, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:02,935 INFO L408 AbstractCegarLoop]: === Iteration 50 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:02,935 INFO L82 PathProgramCache]: Analyzing trace with hash 265257913, now seen corresponding path program 49 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:02,937 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:03,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4851 backedges. 0 proven. 4851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:03,515 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:03,515 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2018-04-13 15:44:03,515 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:03,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:03,515 INFO L182 omatonBuilderFactory]: Interpolants [24832#(= main_~i~0 43), 24833#(= main_~i~0 44), 24834#(= main_~i~0 45), 24835#(= main_~i~0 46), 24836#(= main_~i~0 47), 24837#(= main_~i~0 48), 24838#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 24785#true, 24786#false, 24789#(= main_~i~0 0), 24790#(= main_~i~0 1), 24791#(= main_~i~0 2), 24792#(= main_~i~0 3), 24793#(= main_~i~0 4), 24794#(= main_~i~0 5), 24795#(= main_~i~0 6), 24796#(= main_~i~0 7), 24797#(= main_~i~0 8), 24798#(= main_~i~0 9), 24799#(= main_~i~0 10), 24800#(= main_~i~0 11), 24801#(= main_~i~0 12), 24802#(= main_~i~0 13), 24803#(= main_~i~0 14), 24804#(= main_~i~0 15), 24805#(= main_~i~0 16), 24806#(= main_~i~0 17), 24807#(= main_~i~0 18), 24808#(= main_~i~0 19), 24809#(= main_~i~0 20), 24810#(= main_~i~0 21), 24811#(= main_~i~0 22), 24812#(= main_~i~0 23), 24813#(= main_~i~0 24), 24814#(= main_~i~0 25), 24815#(= main_~i~0 26), 24816#(= main_~i~0 27), 24817#(= main_~i~0 28), 24818#(= main_~i~0 29), 24819#(= main_~i~0 30), 24820#(= main_~i~0 31), 24821#(= main_~i~0 32), 24822#(= main_~i~0 33), 24823#(= main_~i~0 34), 24824#(= main_~i~0 35), 24825#(= main_~i~0 36), 24826#(= main_~i~0 37), 24827#(= main_~i~0 38), 24828#(= main_~i~0 39), 24829#(= main_~i~0 40), 24830#(= main_~i~0 41), 24831#(= main_~i~0 42)] [2018-04-13 15:44:03,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4851 backedges. 0 proven. 4851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:03,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-13 15:44:03,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-13 15:44:03,516 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=2502, Unknown=0, NotChecked=0, Total=2652 [2018-04-13 15:44:03,516 INFO L87 Difference]: Start difference. First operand 454 states and 455 transitions. Second operand 52 states. [2018-04-13 15:44:06,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:06,578 INFO L93 Difference]: Finished difference Result 463 states and 464 transitions. [2018-04-13 15:44:06,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-04-13 15:44:06,578 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 204 [2018-04-13 15:44:06,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:06,579 INFO L225 Difference]: With dead ends: 463 [2018-04-13 15:44:06,579 INFO L226 Difference]: Without dead ends: 463 [2018-04-13 15:44:06,579 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=150, Invalid=2502, Unknown=0, NotChecked=0, Total=2652 [2018-04-13 15:44:06,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2018-04-13 15:44:06,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2018-04-13 15:44:06,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2018-04-13 15:44:06,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 464 transitions. [2018-04-13 15:44:06,581 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 464 transitions. Word has length 204 [2018-04-13 15:44:06,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:06,581 INFO L459 AbstractCegarLoop]: Abstraction has 463 states and 464 transitions. [2018-04-13 15:44:06,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-13 15:44:06,581 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 464 transitions. [2018-04-13 15:44:06,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-04-13 15:44:06,582 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:06,582 INFO L355 BasicCegarLoop]: trace histogram [51, 51, 50, 50, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:06,582 INFO L408 AbstractCegarLoop]: === Iteration 51 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:06,582 INFO L82 PathProgramCache]: Analyzing trace with hash -794844366, now seen corresponding path program 50 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:06,590 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:07,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:07,201 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:07,201 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2018-04-13 15:44:07,201 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:07,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:07,202 INFO L182 omatonBuilderFactory]: Interpolants [25765#true, 25766#false, 25769#(= main_~i~0 0), 25770#(= main_~i~0 1), 25771#(= main_~i~0 2), 25772#(= main_~i~0 3), 25773#(= main_~i~0 4), 25774#(= main_~i~0 5), 25775#(= main_~i~0 6), 25776#(= main_~i~0 7), 25777#(= main_~i~0 8), 25778#(= main_~i~0 9), 25779#(= main_~i~0 10), 25780#(= main_~i~0 11), 25781#(= main_~i~0 12), 25782#(= main_~i~0 13), 25783#(= main_~i~0 14), 25784#(= main_~i~0 15), 25785#(= main_~i~0 16), 25786#(= main_~i~0 17), 25787#(= main_~i~0 18), 25788#(= main_~i~0 19), 25789#(= main_~i~0 20), 25790#(= main_~i~0 21), 25791#(= main_~i~0 22), 25792#(= main_~i~0 23), 25793#(= main_~i~0 24), 25794#(= main_~i~0 25), 25795#(= main_~i~0 26), 25796#(= main_~i~0 27), 25797#(= main_~i~0 28), 25798#(= main_~i~0 29), 25799#(= main_~i~0 30), 25800#(= main_~i~0 31), 25801#(= main_~i~0 32), 25802#(= main_~i~0 33), 25803#(= main_~i~0 34), 25804#(= main_~i~0 35), 25805#(= main_~i~0 36), 25806#(= main_~i~0 37), 25807#(= main_~i~0 38), 25808#(= main_~i~0 39), 25809#(= main_~i~0 40), 25810#(= main_~i~0 41), 25811#(= main_~i~0 42), 25812#(= main_~i~0 43), 25813#(= main_~i~0 44), 25814#(= main_~i~0 45), 25815#(= main_~i~0 46), 25816#(= main_~i~0 47), 25817#(= main_~i~0 48), 25818#(= main_~i~0 49), 25819#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:44:07,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:07,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-04-13 15:44:07,202 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-04-13 15:44:07,202 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=2603, Unknown=0, NotChecked=0, Total=2756 [2018-04-13 15:44:07,202 INFO L87 Difference]: Start difference. First operand 463 states and 464 transitions. Second operand 53 states. [2018-04-13 15:44:10,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:10,454 INFO L93 Difference]: Finished difference Result 472 states and 473 transitions. [2018-04-13 15:44:10,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-04-13 15:44:10,489 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 208 [2018-04-13 15:44:10,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:10,490 INFO L225 Difference]: With dead ends: 472 [2018-04-13 15:44:10,490 INFO L226 Difference]: Without dead ends: 472 [2018-04-13 15:44:10,490 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=2603, Unknown=0, NotChecked=0, Total=2756 [2018-04-13 15:44:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2018-04-13 15:44:10,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2018-04-13 15:44:10,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2018-04-13 15:44:10,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 473 transitions. [2018-04-13 15:44:10,492 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 473 transitions. Word has length 208 [2018-04-13 15:44:10,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:10,493 INFO L459 AbstractCegarLoop]: Abstraction has 472 states and 473 transitions. [2018-04-13 15:44:10,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-04-13 15:44:10,493 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 473 transitions. [2018-04-13 15:44:10,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-04-13 15:44:10,494 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:10,494 INFO L355 BasicCegarLoop]: trace histogram [52, 52, 51, 51, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:10,494 INFO L408 AbstractCegarLoop]: === Iteration 52 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:10,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1693539883, now seen corresponding path program 51 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:10,497 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5253 backedges. 0 proven. 5253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:11,114 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:11,114 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2018-04-13 15:44:11,114 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:11,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:11,115 INFO L182 omatonBuilderFactory]: Interpolants [26764#true, 26765#false, 26768#(= main_~i~0 0), 26769#(= main_~i~0 1), 26770#(= main_~i~0 2), 26771#(= main_~i~0 3), 26772#(= main_~i~0 4), 26773#(= main_~i~0 5), 26774#(= main_~i~0 6), 26775#(= main_~i~0 7), 26776#(= main_~i~0 8), 26777#(= main_~i~0 9), 26778#(= main_~i~0 10), 26779#(= main_~i~0 11), 26780#(= main_~i~0 12), 26781#(= main_~i~0 13), 26782#(= main_~i~0 14), 26783#(= main_~i~0 15), 26784#(= main_~i~0 16), 26785#(= main_~i~0 17), 26786#(= main_~i~0 18), 26787#(= main_~i~0 19), 26788#(= main_~i~0 20), 26789#(= main_~i~0 21), 26790#(= main_~i~0 22), 26791#(= main_~i~0 23), 26792#(= main_~i~0 24), 26793#(= main_~i~0 25), 26794#(= main_~i~0 26), 26795#(= main_~i~0 27), 26796#(= main_~i~0 28), 26797#(= main_~i~0 29), 26798#(= main_~i~0 30), 26799#(= main_~i~0 31), 26800#(= main_~i~0 32), 26801#(= main_~i~0 33), 26802#(= main_~i~0 34), 26803#(= main_~i~0 35), 26804#(= main_~i~0 36), 26805#(= main_~i~0 37), 26806#(= main_~i~0 38), 26807#(= main_~i~0 39), 26808#(= main_~i~0 40), 26809#(= main_~i~0 41), 26810#(= main_~i~0 42), 26811#(= main_~i~0 43), 26812#(= main_~i~0 44), 26813#(= main_~i~0 45), 26814#(= main_~i~0 46), 26815#(= main_~i~0 47), 26816#(= main_~i~0 48), 26817#(= main_~i~0 49), 26818#(= main_~i~0 50), 26819#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:44:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 5253 backedges. 0 proven. 5253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:11,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-04-13 15:44:11,115 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-04-13 15:44:11,115 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=2706, Unknown=0, NotChecked=0, Total=2862 [2018-04-13 15:44:11,116 INFO L87 Difference]: Start difference. First operand 472 states and 473 transitions. Second operand 54 states. [2018-04-13 15:44:14,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:14,481 INFO L93 Difference]: Finished difference Result 481 states and 482 transitions. [2018-04-13 15:44:14,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-13 15:44:14,482 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 212 [2018-04-13 15:44:14,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:14,482 INFO L225 Difference]: With dead ends: 481 [2018-04-13 15:44:14,482 INFO L226 Difference]: Without dead ends: 481 [2018-04-13 15:44:14,483 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=2706, Unknown=0, NotChecked=0, Total=2862 [2018-04-13 15:44:14,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2018-04-13 15:44:14,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2018-04-13 15:44:14,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2018-04-13 15:44:14,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 482 transitions. [2018-04-13 15:44:14,485 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 482 transitions. Word has length 212 [2018-04-13 15:44:14,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:14,485 INFO L459 AbstractCegarLoop]: Abstraction has 481 states and 482 transitions. [2018-04-13 15:44:14,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-04-13 15:44:14,485 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 482 transitions. [2018-04-13 15:44:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-04-13 15:44:14,486 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:14,486 INFO L355 BasicCegarLoop]: trace histogram [53, 53, 52, 52, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:14,486 INFO L408 AbstractCegarLoop]: === Iteration 53 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:14,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1282739036, now seen corresponding path program 52 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:14,488 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:15,111 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 5460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:15,126 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:15,126 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-04-13 15:44:15,126 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:15,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:15,126 INFO L182 omatonBuilderFactory]: Interpolants [27782#true, 27783#false, 27786#(= main_~i~0 0), 27787#(= main_~i~0 1), 27788#(= main_~i~0 2), 27789#(= main_~i~0 3), 27790#(= main_~i~0 4), 27791#(= main_~i~0 5), 27792#(= main_~i~0 6), 27793#(= main_~i~0 7), 27794#(= main_~i~0 8), 27795#(= main_~i~0 9), 27796#(= main_~i~0 10), 27797#(= main_~i~0 11), 27798#(= main_~i~0 12), 27799#(= main_~i~0 13), 27800#(= main_~i~0 14), 27801#(= main_~i~0 15), 27802#(= main_~i~0 16), 27803#(= main_~i~0 17), 27804#(= main_~i~0 18), 27805#(= main_~i~0 19), 27806#(= main_~i~0 20), 27807#(= main_~i~0 21), 27808#(= main_~i~0 22), 27809#(= main_~i~0 23), 27810#(= main_~i~0 24), 27811#(= main_~i~0 25), 27812#(= main_~i~0 26), 27813#(= main_~i~0 27), 27814#(= main_~i~0 28), 27815#(= main_~i~0 29), 27816#(= main_~i~0 30), 27817#(= main_~i~0 31), 27818#(= main_~i~0 32), 27819#(= main_~i~0 33), 27820#(= main_~i~0 34), 27821#(= main_~i~0 35), 27822#(= main_~i~0 36), 27823#(= main_~i~0 37), 27824#(= main_~i~0 38), 27825#(= main_~i~0 39), 27826#(= main_~i~0 40), 27827#(= main_~i~0 41), 27828#(= main_~i~0 42), 27829#(= main_~i~0 43), 27830#(= main_~i~0 44), 27831#(= main_~i~0 45), 27832#(= main_~i~0 46), 27833#(= main_~i~0 47), 27834#(= main_~i~0 48), 27835#(= main_~i~0 49), 27836#(= main_~i~0 50), 27837#(= main_~i~0 51), 27838#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:44:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 5460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:15,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-04-13 15:44:15,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-04-13 15:44:15,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=2811, Unknown=0, NotChecked=0, Total=2970 [2018-04-13 15:44:15,127 INFO L87 Difference]: Start difference. First operand 481 states and 482 transitions. Second operand 55 states. [2018-04-13 15:44:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:18,608 INFO L93 Difference]: Finished difference Result 490 states and 491 transitions. [2018-04-13 15:44:18,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-04-13 15:44:18,609 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 216 [2018-04-13 15:44:18,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:18,609 INFO L225 Difference]: With dead ends: 490 [2018-04-13 15:44:18,609 INFO L226 Difference]: Without dead ends: 490 [2018-04-13 15:44:18,610 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=2811, Unknown=0, NotChecked=0, Total=2970 [2018-04-13 15:44:18,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2018-04-13 15:44:18,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2018-04-13 15:44:18,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-04-13 15:44:18,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 491 transitions. [2018-04-13 15:44:18,612 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 491 transitions. Word has length 216 [2018-04-13 15:44:18,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:18,612 INFO L459 AbstractCegarLoop]: Abstraction has 490 states and 491 transitions. [2018-04-13 15:44:18,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-04-13 15:44:18,612 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 491 transitions. [2018-04-13 15:44:18,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-04-13 15:44:18,613 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:18,613 INFO L355 BasicCegarLoop]: trace histogram [54, 54, 53, 53, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:18,613 INFO L408 AbstractCegarLoop]: === Iteration 54 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:18,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1444062877, now seen corresponding path program 53 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:18,615 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 5671 backedges. 0 proven. 5671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:19,321 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:19,321 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-04-13 15:44:19,321 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:19,321 INFO L182 omatonBuilderFactory]: Interpolants [28819#true, 28820#false, 28823#(= main_~i~0 0), 28824#(= main_~i~0 1), 28825#(= main_~i~0 2), 28826#(= main_~i~0 3), 28827#(= main_~i~0 4), 28828#(= main_~i~0 5), 28829#(= main_~i~0 6), 28830#(= main_~i~0 7), 28831#(= main_~i~0 8), 28832#(= main_~i~0 9), 28833#(= main_~i~0 10), 28834#(= main_~i~0 11), 28835#(= main_~i~0 12), 28836#(= main_~i~0 13), 28837#(= main_~i~0 14), 28838#(= main_~i~0 15), 28839#(= main_~i~0 16), 28840#(= main_~i~0 17), 28841#(= main_~i~0 18), 28842#(= main_~i~0 19), 28843#(= main_~i~0 20), 28844#(= main_~i~0 21), 28845#(= main_~i~0 22), 28846#(= main_~i~0 23), 28847#(= main_~i~0 24), 28848#(= main_~i~0 25), 28849#(= main_~i~0 26), 28850#(= main_~i~0 27), 28851#(= main_~i~0 28), 28852#(= main_~i~0 29), 28853#(= main_~i~0 30), 28854#(= main_~i~0 31), 28855#(= main_~i~0 32), 28856#(= main_~i~0 33), 28857#(= main_~i~0 34), 28858#(= main_~i~0 35), 28859#(= main_~i~0 36), 28860#(= main_~i~0 37), 28861#(= main_~i~0 38), 28862#(= main_~i~0 39), 28863#(= main_~i~0 40), 28864#(= main_~i~0 41), 28865#(= main_~i~0 42), 28866#(= main_~i~0 43), 28867#(= main_~i~0 44), 28868#(= main_~i~0 45), 28869#(= main_~i~0 46), 28870#(= main_~i~0 47), 28871#(= main_~i~0 48), 28872#(= main_~i~0 49), 28873#(= main_~i~0 50), 28874#(= main_~i~0 51), 28875#(= main_~i~0 52), 28876#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:44:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 5671 backedges. 0 proven. 5671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:19,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-04-13 15:44:19,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-04-13 15:44:19,322 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=2918, Unknown=0, NotChecked=0, Total=3080 [2018-04-13 15:44:19,322 INFO L87 Difference]: Start difference. First operand 490 states and 491 transitions. Second operand 56 states. [2018-04-13 15:44:23,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:23,011 INFO L93 Difference]: Finished difference Result 499 states and 500 transitions. [2018-04-13 15:44:23,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-04-13 15:44:23,011 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 220 [2018-04-13 15:44:23,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:23,012 INFO L225 Difference]: With dead ends: 499 [2018-04-13 15:44:23,012 INFO L226 Difference]: Without dead ends: 499 [2018-04-13 15:44:23,012 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=162, Invalid=2918, Unknown=0, NotChecked=0, Total=3080 [2018-04-13 15:44:23,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2018-04-13 15:44:23,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2018-04-13 15:44:23,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2018-04-13 15:44:23,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 500 transitions. [2018-04-13 15:44:23,014 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 500 transitions. Word has length 220 [2018-04-13 15:44:23,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:23,014 INFO L459 AbstractCegarLoop]: Abstraction has 499 states and 500 transitions. [2018-04-13 15:44:23,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-04-13 15:44:23,015 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 500 transitions. [2018-04-13 15:44:23,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-04-13 15:44:23,015 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:23,015 INFO L355 BasicCegarLoop]: trace histogram [55, 55, 54, 54, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:23,015 INFO L408 AbstractCegarLoop]: === Iteration 55 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:23,015 INFO L82 PathProgramCache]: Analyzing trace with hash 688829462, now seen corresponding path program 54 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:23,018 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:23,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5886 backedges. 0 proven. 5886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:23,702 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:23,702 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2018-04-13 15:44:23,702 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:23,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:23,703 INFO L182 omatonBuilderFactory]: Interpolants [29875#true, 29876#false, 29879#(= main_~i~0 0), 29880#(= main_~i~0 1), 29881#(= main_~i~0 2), 29882#(= main_~i~0 3), 29883#(= main_~i~0 4), 29884#(= main_~i~0 5), 29885#(= main_~i~0 6), 29886#(= main_~i~0 7), 29887#(= main_~i~0 8), 29888#(= main_~i~0 9), 29889#(= main_~i~0 10), 29890#(= main_~i~0 11), 29891#(= main_~i~0 12), 29892#(= main_~i~0 13), 29893#(= main_~i~0 14), 29894#(= main_~i~0 15), 29895#(= main_~i~0 16), 29896#(= main_~i~0 17), 29897#(= main_~i~0 18), 29898#(= main_~i~0 19), 29899#(= main_~i~0 20), 29900#(= main_~i~0 21), 29901#(= main_~i~0 22), 29902#(= main_~i~0 23), 29903#(= main_~i~0 24), 29904#(= main_~i~0 25), 29905#(= main_~i~0 26), 29906#(= main_~i~0 27), 29907#(= main_~i~0 28), 29908#(= main_~i~0 29), 29909#(= main_~i~0 30), 29910#(= main_~i~0 31), 29911#(= main_~i~0 32), 29912#(= main_~i~0 33), 29913#(= main_~i~0 34), 29914#(= main_~i~0 35), 29915#(= main_~i~0 36), 29916#(= main_~i~0 37), 29917#(= main_~i~0 38), 29918#(= main_~i~0 39), 29919#(= main_~i~0 40), 29920#(= main_~i~0 41), 29921#(= main_~i~0 42), 29922#(= main_~i~0 43), 29923#(= main_~i~0 44), 29924#(= main_~i~0 45), 29925#(= main_~i~0 46), 29926#(= main_~i~0 47), 29927#(= main_~i~0 48), 29928#(= main_~i~0 49), 29929#(= main_~i~0 50), 29930#(= main_~i~0 51), 29931#(= main_~i~0 52), 29932#(= main_~i~0 53), 29933#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:44:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 5886 backedges. 0 proven. 5886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:23,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-04-13 15:44:23,703 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-04-13 15:44:23,703 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=3027, Unknown=0, NotChecked=0, Total=3192 [2018-04-13 15:44:23,703 INFO L87 Difference]: Start difference. First operand 499 states and 500 transitions. Second operand 57 states. [2018-04-13 15:44:27,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:27,489 INFO L93 Difference]: Finished difference Result 508 states and 509 transitions. [2018-04-13 15:44:27,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-04-13 15:44:27,490 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 224 [2018-04-13 15:44:27,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:27,490 INFO L225 Difference]: With dead ends: 508 [2018-04-13 15:44:27,491 INFO L226 Difference]: Without dead ends: 508 [2018-04-13 15:44:27,491 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=165, Invalid=3027, Unknown=0, NotChecked=0, Total=3192 [2018-04-13 15:44:27,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2018-04-13 15:44:27,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2018-04-13 15:44:27,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2018-04-13 15:44:27,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 509 transitions. [2018-04-13 15:44:27,493 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 509 transitions. Word has length 224 [2018-04-13 15:44:27,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:27,493 INFO L459 AbstractCegarLoop]: Abstraction has 508 states and 509 transitions. [2018-04-13 15:44:27,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-04-13 15:44:27,493 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 509 transitions. [2018-04-13 15:44:27,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-04-13 15:44:27,494 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:27,494 INFO L355 BasicCegarLoop]: trace histogram [56, 56, 55, 55, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:27,494 INFO L408 AbstractCegarLoop]: === Iteration 56 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:27,494 INFO L82 PathProgramCache]: Analyzing trace with hash -605725425, now seen corresponding path program 55 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:27,504 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:28,213 INFO L134 CoverageAnalysis]: Checked inductivity of 6105 backedges. 0 proven. 6105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:28,229 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:28,229 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-04-13 15:44:28,229 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:28,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:28,229 INFO L182 omatonBuilderFactory]: Interpolants [30976#(= main_~i~0 22), 30977#(= main_~i~0 23), 30978#(= main_~i~0 24), 30979#(= main_~i~0 25), 30980#(= main_~i~0 26), 30981#(= main_~i~0 27), 30982#(= main_~i~0 28), 30983#(= main_~i~0 29), 30984#(= main_~i~0 30), 30985#(= main_~i~0 31), 30986#(= main_~i~0 32), 30987#(= main_~i~0 33), 30988#(= main_~i~0 34), 30989#(= main_~i~0 35), 30990#(= main_~i~0 36), 30991#(= main_~i~0 37), 30992#(= main_~i~0 38), 30993#(= main_~i~0 39), 30994#(= main_~i~0 40), 30995#(= main_~i~0 41), 30996#(= main_~i~0 42), 30997#(= main_~i~0 43), 30998#(= main_~i~0 44), 30999#(= main_~i~0 45), 31000#(= main_~i~0 46), 31001#(= main_~i~0 47), 31002#(= main_~i~0 48), 31003#(= main_~i~0 49), 31004#(= main_~i~0 50), 31005#(= main_~i~0 51), 31006#(= main_~i~0 52), 31007#(= main_~i~0 53), 31008#(= main_~i~0 54), 31009#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 30950#true, 30951#false, 30954#(= main_~i~0 0), 30955#(= main_~i~0 1), 30956#(= main_~i~0 2), 30957#(= main_~i~0 3), 30958#(= main_~i~0 4), 30959#(= main_~i~0 5), 30960#(= main_~i~0 6), 30961#(= main_~i~0 7), 30962#(= main_~i~0 8), 30963#(= main_~i~0 9), 30964#(= main_~i~0 10), 30965#(= main_~i~0 11), 30966#(= main_~i~0 12), 30967#(= main_~i~0 13), 30968#(= main_~i~0 14), 30969#(= main_~i~0 15), 30970#(= main_~i~0 16), 30971#(= main_~i~0 17), 30972#(= main_~i~0 18), 30973#(= main_~i~0 19), 30974#(= main_~i~0 20), 30975#(= main_~i~0 21)] [2018-04-13 15:44:28,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6105 backedges. 0 proven. 6105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:28,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-04-13 15:44:28,230 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-04-13 15:44:28,230 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=3138, Unknown=0, NotChecked=0, Total=3306 [2018-04-13 15:44:28,230 INFO L87 Difference]: Start difference. First operand 508 states and 509 transitions. Second operand 58 states. [2018-04-13 15:44:32,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:32,160 INFO L93 Difference]: Finished difference Result 517 states and 518 transitions. [2018-04-13 15:44:32,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-04-13 15:44:32,161 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 228 [2018-04-13 15:44:32,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:32,161 INFO L225 Difference]: With dead ends: 517 [2018-04-13 15:44:32,162 INFO L226 Difference]: Without dead ends: 517 [2018-04-13 15:44:32,162 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=3138, Unknown=0, NotChecked=0, Total=3306 [2018-04-13 15:44:32,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2018-04-13 15:44:32,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2018-04-13 15:44:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2018-04-13 15:44:32,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 518 transitions. [2018-04-13 15:44:32,164 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 518 transitions. Word has length 228 [2018-04-13 15:44:32,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:32,164 INFO L459 AbstractCegarLoop]: Abstraction has 517 states and 518 transitions. [2018-04-13 15:44:32,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-04-13 15:44:32,164 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 518 transitions. [2018-04-13 15:44:32,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-04-13 15:44:32,165 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:32,165 INFO L355 BasicCegarLoop]: trace histogram [57, 57, 56, 56, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:32,165 INFO L408 AbstractCegarLoop]: === Iteration 57 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:32,165 INFO L82 PathProgramCache]: Analyzing trace with hash -2133007992, now seen corresponding path program 56 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:32,168 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:32,872 INFO L134 CoverageAnalysis]: Checked inductivity of 6328 backedges. 0 proven. 6328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:32,888 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:32,888 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2018-04-13 15:44:32,888 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:32,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:32,888 INFO L182 omatonBuilderFactory]: Interpolants [32044#true, 32045#false, 32048#(= main_~i~0 0), 32049#(= main_~i~0 1), 32050#(= main_~i~0 2), 32051#(= main_~i~0 3), 32052#(= main_~i~0 4), 32053#(= main_~i~0 5), 32054#(= main_~i~0 6), 32055#(= main_~i~0 7), 32056#(= main_~i~0 8), 32057#(= main_~i~0 9), 32058#(= main_~i~0 10), 32059#(= main_~i~0 11), 32060#(= main_~i~0 12), 32061#(= main_~i~0 13), 32062#(= main_~i~0 14), 32063#(= main_~i~0 15), 32064#(= main_~i~0 16), 32065#(= main_~i~0 17), 32066#(= main_~i~0 18), 32067#(= main_~i~0 19), 32068#(= main_~i~0 20), 32069#(= main_~i~0 21), 32070#(= main_~i~0 22), 32071#(= main_~i~0 23), 32072#(= main_~i~0 24), 32073#(= main_~i~0 25), 32074#(= main_~i~0 26), 32075#(= main_~i~0 27), 32076#(= main_~i~0 28), 32077#(= main_~i~0 29), 32078#(= main_~i~0 30), 32079#(= main_~i~0 31), 32080#(= main_~i~0 32), 32081#(= main_~i~0 33), 32082#(= main_~i~0 34), 32083#(= main_~i~0 35), 32084#(= main_~i~0 36), 32085#(= main_~i~0 37), 32086#(= main_~i~0 38), 32087#(= main_~i~0 39), 32088#(= main_~i~0 40), 32089#(= main_~i~0 41), 32090#(= main_~i~0 42), 32091#(= main_~i~0 43), 32092#(= main_~i~0 44), 32093#(= main_~i~0 45), 32094#(= main_~i~0 46), 32095#(= main_~i~0 47), 32096#(= main_~i~0 48), 32097#(= main_~i~0 49), 32098#(= main_~i~0 50), 32099#(= main_~i~0 51), 32100#(= main_~i~0 52), 32101#(= main_~i~0 53), 32102#(= main_~i~0 54), 32103#(= main_~i~0 55), 32104#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:44:32,888 INFO L134 CoverageAnalysis]: Checked inductivity of 6328 backedges. 0 proven. 6328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:32,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-04-13 15:44:32,889 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-04-13 15:44:32,889 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=3251, Unknown=0, NotChecked=0, Total=3422 [2018-04-13 15:44:32,889 INFO L87 Difference]: Start difference. First operand 517 states and 518 transitions. Second operand 59 states. [2018-04-13 15:44:36,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:36,936 INFO L93 Difference]: Finished difference Result 526 states and 527 transitions. [2018-04-13 15:44:36,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-04-13 15:44:36,936 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 232 [2018-04-13 15:44:36,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:36,937 INFO L225 Difference]: With dead ends: 526 [2018-04-13 15:44:36,937 INFO L226 Difference]: Without dead ends: 526 [2018-04-13 15:44:36,937 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=171, Invalid=3251, Unknown=0, NotChecked=0, Total=3422 [2018-04-13 15:44:36,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2018-04-13 15:44:36,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2018-04-13 15:44:36,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2018-04-13 15:44:36,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 527 transitions. [2018-04-13 15:44:36,939 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 527 transitions. Word has length 232 [2018-04-13 15:44:36,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:36,939 INFO L459 AbstractCegarLoop]: Abstraction has 526 states and 527 transitions. [2018-04-13 15:44:36,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-04-13 15:44:36,940 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 527 transitions. [2018-04-13 15:44:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-04-13 15:44:36,940 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:36,940 INFO L355 BasicCegarLoop]: trace histogram [58, 58, 57, 57, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:36,940 INFO L408 AbstractCegarLoop]: === Iteration 58 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:36,940 INFO L82 PathProgramCache]: Analyzing trace with hash 488341889, now seen corresponding path program 57 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:36,944 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 6555 backedges. 0 proven. 6555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:37,732 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:37,732 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2018-04-13 15:44:37,732 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:37,733 INFO L182 omatonBuilderFactory]: Interpolants [33157#true, 33158#false, 33161#(= main_~i~0 0), 33162#(= main_~i~0 1), 33163#(= main_~i~0 2), 33164#(= main_~i~0 3), 33165#(= main_~i~0 4), 33166#(= main_~i~0 5), 33167#(= main_~i~0 6), 33168#(= main_~i~0 7), 33169#(= main_~i~0 8), 33170#(= main_~i~0 9), 33171#(= main_~i~0 10), 33172#(= main_~i~0 11), 33173#(= main_~i~0 12), 33174#(= main_~i~0 13), 33175#(= main_~i~0 14), 33176#(= main_~i~0 15), 33177#(= main_~i~0 16), 33178#(= main_~i~0 17), 33179#(= main_~i~0 18), 33180#(= main_~i~0 19), 33181#(= main_~i~0 20), 33182#(= main_~i~0 21), 33183#(= main_~i~0 22), 33184#(= main_~i~0 23), 33185#(= main_~i~0 24), 33186#(= main_~i~0 25), 33187#(= main_~i~0 26), 33188#(= main_~i~0 27), 33189#(= main_~i~0 28), 33190#(= main_~i~0 29), 33191#(= main_~i~0 30), 33192#(= main_~i~0 31), 33193#(= main_~i~0 32), 33194#(= main_~i~0 33), 33195#(= main_~i~0 34), 33196#(= main_~i~0 35), 33197#(= main_~i~0 36), 33198#(= main_~i~0 37), 33199#(= main_~i~0 38), 33200#(= main_~i~0 39), 33201#(= main_~i~0 40), 33202#(= main_~i~0 41), 33203#(= main_~i~0 42), 33204#(= main_~i~0 43), 33205#(= main_~i~0 44), 33206#(= main_~i~0 45), 33207#(= main_~i~0 46), 33208#(= main_~i~0 47), 33209#(= main_~i~0 48), 33210#(= main_~i~0 49), 33211#(= main_~i~0 50), 33212#(= main_~i~0 51), 33213#(= main_~i~0 52), 33214#(= main_~i~0 53), 33215#(= main_~i~0 54), 33216#(= main_~i~0 55), 33217#(= main_~i~0 56), 33218#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:44:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6555 backedges. 0 proven. 6555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:37,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-04-13 15:44:37,733 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-04-13 15:44:37,734 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=3366, Unknown=0, NotChecked=0, Total=3540 [2018-04-13 15:44:37,734 INFO L87 Difference]: Start difference. First operand 526 states and 527 transitions. Second operand 60 states. [2018-04-13 15:44:41,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:41,946 INFO L93 Difference]: Finished difference Result 535 states and 536 transitions. [2018-04-13 15:44:41,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-04-13 15:44:41,946 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 236 [2018-04-13 15:44:41,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:41,947 INFO L225 Difference]: With dead ends: 535 [2018-04-13 15:44:41,947 INFO L226 Difference]: Without dead ends: 535 [2018-04-13 15:44:41,947 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=174, Invalid=3366, Unknown=0, NotChecked=0, Total=3540 [2018-04-13 15:44:41,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2018-04-13 15:44:41,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2018-04-13 15:44:41,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2018-04-13 15:44:41,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 536 transitions. [2018-04-13 15:44:41,949 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 536 transitions. Word has length 236 [2018-04-13 15:44:41,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:41,950 INFO L459 AbstractCegarLoop]: Abstraction has 535 states and 536 transitions. [2018-04-13 15:44:41,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-04-13 15:44:41,950 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 536 transitions. [2018-04-13 15:44:41,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-04-13 15:44:41,950 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:41,950 INFO L355 BasicCegarLoop]: trace histogram [59, 59, 58, 58, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:41,950 INFO L408 AbstractCegarLoop]: === Iteration 59 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:41,951 INFO L82 PathProgramCache]: Analyzing trace with hash 950500602, now seen corresponding path program 58 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:41,952 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:42,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 6786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:42,748 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:42,748 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2018-04-13 15:44:42,749 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:42,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:42,749 INFO L182 omatonBuilderFactory]: Interpolants [34304#(= main_~i~0 11), 34305#(= main_~i~0 12), 34306#(= main_~i~0 13), 34307#(= main_~i~0 14), 34308#(= main_~i~0 15), 34309#(= main_~i~0 16), 34310#(= main_~i~0 17), 34311#(= main_~i~0 18), 34312#(= main_~i~0 19), 34313#(= main_~i~0 20), 34314#(= main_~i~0 21), 34315#(= main_~i~0 22), 34316#(= main_~i~0 23), 34317#(= main_~i~0 24), 34318#(= main_~i~0 25), 34319#(= main_~i~0 26), 34320#(= main_~i~0 27), 34321#(= main_~i~0 28), 34322#(= main_~i~0 29), 34323#(= main_~i~0 30), 34324#(= main_~i~0 31), 34325#(= main_~i~0 32), 34326#(= main_~i~0 33), 34327#(= main_~i~0 34), 34328#(= main_~i~0 35), 34329#(= main_~i~0 36), 34330#(= main_~i~0 37), 34331#(= main_~i~0 38), 34332#(= main_~i~0 39), 34333#(= main_~i~0 40), 34334#(= main_~i~0 41), 34335#(= main_~i~0 42), 34336#(= main_~i~0 43), 34337#(= main_~i~0 44), 34338#(= main_~i~0 45), 34339#(= main_~i~0 46), 34340#(= main_~i~0 47), 34341#(= main_~i~0 48), 34342#(= main_~i~0 49), 34343#(= main_~i~0 50), 34344#(= main_~i~0 51), 34345#(= main_~i~0 52), 34346#(= main_~i~0 53), 34347#(= main_~i~0 54), 34348#(= main_~i~0 55), 34349#(= main_~i~0 56), 34350#(= main_~i~0 57), 34351#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 34289#true, 34290#false, 34293#(= main_~i~0 0), 34294#(= main_~i~0 1), 34295#(= main_~i~0 2), 34296#(= main_~i~0 3), 34297#(= main_~i~0 4), 34298#(= main_~i~0 5), 34299#(= main_~i~0 6), 34300#(= main_~i~0 7), 34301#(= main_~i~0 8), 34302#(= main_~i~0 9), 34303#(= main_~i~0 10)] [2018-04-13 15:44:42,749 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 6786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:42,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-04-13 15:44:42,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-04-13 15:44:42,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=3483, Unknown=0, NotChecked=0, Total=3660 [2018-04-13 15:44:42,750 INFO L87 Difference]: Start difference. First operand 535 states and 536 transitions. Second operand 61 states. [2018-04-13 15:44:47,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:47,135 INFO L93 Difference]: Finished difference Result 544 states and 545 transitions. [2018-04-13 15:44:47,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-04-13 15:44:47,135 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 240 [2018-04-13 15:44:47,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:47,136 INFO L225 Difference]: With dead ends: 544 [2018-04-13 15:44:47,136 INFO L226 Difference]: Without dead ends: 544 [2018-04-13 15:44:47,136 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=177, Invalid=3483, Unknown=0, NotChecked=0, Total=3660 [2018-04-13 15:44:47,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2018-04-13 15:44:47,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2018-04-13 15:44:47,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2018-04-13 15:44:47,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 545 transitions. [2018-04-13 15:44:47,138 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 545 transitions. Word has length 240 [2018-04-13 15:44:47,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:47,139 INFO L459 AbstractCegarLoop]: Abstraction has 544 states and 545 transitions. [2018-04-13 15:44:47,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-04-13 15:44:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 545 transitions. [2018-04-13 15:44:47,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-04-13 15:44:47,139 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:47,139 INFO L355 BasicCegarLoop]: trace histogram [60, 60, 59, 59, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:47,139 INFO L408 AbstractCegarLoop]: === Iteration 60 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:47,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1852249075, now seen corresponding path program 59 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:47,141 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:47,917 INFO L134 CoverageAnalysis]: Checked inductivity of 7021 backedges. 0 proven. 7021 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:47,932 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:47,933 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2018-04-13 15:44:47,933 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:47,933 INFO L182 omatonBuilderFactory]: Interpolants [35456#(= main_~i~0 12), 35457#(= main_~i~0 13), 35458#(= main_~i~0 14), 35459#(= main_~i~0 15), 35460#(= main_~i~0 16), 35461#(= main_~i~0 17), 35462#(= main_~i~0 18), 35463#(= main_~i~0 19), 35464#(= main_~i~0 20), 35465#(= main_~i~0 21), 35466#(= main_~i~0 22), 35467#(= main_~i~0 23), 35468#(= main_~i~0 24), 35469#(= main_~i~0 25), 35470#(= main_~i~0 26), 35471#(= main_~i~0 27), 35472#(= main_~i~0 28), 35473#(= main_~i~0 29), 35474#(= main_~i~0 30), 35475#(= main_~i~0 31), 35476#(= main_~i~0 32), 35477#(= main_~i~0 33), 35478#(= main_~i~0 34), 35479#(= main_~i~0 35), 35480#(= main_~i~0 36), 35481#(= main_~i~0 37), 35482#(= main_~i~0 38), 35483#(= main_~i~0 39), 35484#(= main_~i~0 40), 35485#(= main_~i~0 41), 35486#(= main_~i~0 42), 35487#(= main_~i~0 43), 35488#(= main_~i~0 44), 35489#(= main_~i~0 45), 35490#(= main_~i~0 46), 35491#(= main_~i~0 47), 35492#(= main_~i~0 48), 35493#(= main_~i~0 49), 35494#(= main_~i~0 50), 35495#(= main_~i~0 51), 35496#(= main_~i~0 52), 35497#(= main_~i~0 53), 35498#(= main_~i~0 54), 35499#(= main_~i~0 55), 35500#(= main_~i~0 56), 35501#(= main_~i~0 57), 35502#(= main_~i~0 58), 35503#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 35440#true, 35441#false, 35444#(= main_~i~0 0), 35445#(= main_~i~0 1), 35446#(= main_~i~0 2), 35447#(= main_~i~0 3), 35448#(= main_~i~0 4), 35449#(= main_~i~0 5), 35450#(= main_~i~0 6), 35451#(= main_~i~0 7), 35452#(= main_~i~0 8), 35453#(= main_~i~0 9), 35454#(= main_~i~0 10), 35455#(= main_~i~0 11)] [2018-04-13 15:44:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7021 backedges. 0 proven. 7021 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:47,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-04-13 15:44:47,934 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-04-13 15:44:47,934 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=3602, Unknown=0, NotChecked=0, Total=3782 [2018-04-13 15:44:47,934 INFO L87 Difference]: Start difference. First operand 544 states and 545 transitions. Second operand 62 states. [2018-04-13 15:44:52,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:52,397 INFO L93 Difference]: Finished difference Result 553 states and 554 transitions. [2018-04-13 15:44:52,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-04-13 15:44:52,397 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 244 [2018-04-13 15:44:52,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:52,398 INFO L225 Difference]: With dead ends: 553 [2018-04-13 15:44:52,398 INFO L226 Difference]: Without dead ends: 553 [2018-04-13 15:44:52,398 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=180, Invalid=3602, Unknown=0, NotChecked=0, Total=3782 [2018-04-13 15:44:52,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2018-04-13 15:44:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2018-04-13 15:44:52,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2018-04-13 15:44:52,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 554 transitions. [2018-04-13 15:44:52,401 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 554 transitions. Word has length 244 [2018-04-13 15:44:52,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:52,401 INFO L459 AbstractCegarLoop]: Abstraction has 553 states and 554 transitions. [2018-04-13 15:44:52,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-04-13 15:44:52,401 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 554 transitions. [2018-04-13 15:44:52,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-04-13 15:44:52,401 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:52,402 INFO L355 BasicCegarLoop]: trace histogram [61, 61, 60, 60, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:52,402 INFO L408 AbstractCegarLoop]: === Iteration 61 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:52,402 INFO L82 PathProgramCache]: Analyzing trace with hash -64977300, now seen corresponding path program 60 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:52,404 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 7260 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:53,250 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:53,250 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2018-04-13 15:44:53,250 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:53,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:53,250 INFO L182 omatonBuilderFactory]: Interpolants [36610#true, 36611#false, 36614#(= main_~i~0 0), 36615#(= main_~i~0 1), 36616#(= main_~i~0 2), 36617#(= main_~i~0 3), 36618#(= main_~i~0 4), 36619#(= main_~i~0 5), 36620#(= main_~i~0 6), 36621#(= main_~i~0 7), 36622#(= main_~i~0 8), 36623#(= main_~i~0 9), 36624#(= main_~i~0 10), 36625#(= main_~i~0 11), 36626#(= main_~i~0 12), 36627#(= main_~i~0 13), 36628#(= main_~i~0 14), 36629#(= main_~i~0 15), 36630#(= main_~i~0 16), 36631#(= main_~i~0 17), 36632#(= main_~i~0 18), 36633#(= main_~i~0 19), 36634#(= main_~i~0 20), 36635#(= main_~i~0 21), 36636#(= main_~i~0 22), 36637#(= main_~i~0 23), 36638#(= main_~i~0 24), 36639#(= main_~i~0 25), 36640#(= main_~i~0 26), 36641#(= main_~i~0 27), 36642#(= main_~i~0 28), 36643#(= main_~i~0 29), 36644#(= main_~i~0 30), 36645#(= main_~i~0 31), 36646#(= main_~i~0 32), 36647#(= main_~i~0 33), 36648#(= main_~i~0 34), 36649#(= main_~i~0 35), 36650#(= main_~i~0 36), 36651#(= main_~i~0 37), 36652#(= main_~i~0 38), 36653#(= main_~i~0 39), 36654#(= main_~i~0 40), 36655#(= main_~i~0 41), 36656#(= main_~i~0 42), 36657#(= main_~i~0 43), 36658#(= main_~i~0 44), 36659#(= main_~i~0 45), 36660#(= main_~i~0 46), 36661#(= main_~i~0 47), 36662#(= main_~i~0 48), 36663#(= main_~i~0 49), 36664#(= main_~i~0 50), 36665#(= main_~i~0 51), 36666#(= main_~i~0 52), 36667#(= main_~i~0 53), 36668#(= main_~i~0 54), 36669#(= main_~i~0 55), 36670#(= main_~i~0 56), 36671#(= main_~i~0 57), 36672#(= main_~i~0 58), 36673#(= main_~i~0 59), 36674#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:44:53,250 INFO L134 CoverageAnalysis]: Checked inductivity of 7260 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:53,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-04-13 15:44:53,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-04-13 15:44:53,251 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=3723, Unknown=0, NotChecked=0, Total=3906 [2018-04-13 15:44:53,251 INFO L87 Difference]: Start difference. First operand 553 states and 554 transitions. Second operand 63 states. [2018-04-13 15:44:57,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:44:57,849 INFO L93 Difference]: Finished difference Result 562 states and 563 transitions. [2018-04-13 15:44:57,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-04-13 15:44:57,850 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 248 [2018-04-13 15:44:57,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:44:57,851 INFO L225 Difference]: With dead ends: 562 [2018-04-13 15:44:57,851 INFO L226 Difference]: Without dead ends: 562 [2018-04-13 15:44:57,851 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=3723, Unknown=0, NotChecked=0, Total=3906 [2018-04-13 15:44:57,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2018-04-13 15:44:57,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2018-04-13 15:44:57,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2018-04-13 15:44:57,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 563 transitions. [2018-04-13 15:44:57,853 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 563 transitions. Word has length 248 [2018-04-13 15:44:57,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:44:57,853 INFO L459 AbstractCegarLoop]: Abstraction has 562 states and 563 transitions. [2018-04-13 15:44:57,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-04-13 15:44:57,853 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 563 transitions. [2018-04-13 15:44:57,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-04-13 15:44:57,854 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:44:57,854 INFO L355 BasicCegarLoop]: trace histogram [62, 62, 61, 61, 1, 1, 1, 1, 1, 1] [2018-04-13 15:44:57,854 INFO L408 AbstractCegarLoop]: === Iteration 62 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:44:57,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1383732325, now seen corresponding path program 61 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:44:57,857 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:44:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:44:58,718 INFO L134 CoverageAnalysis]: Checked inductivity of 7503 backedges. 0 proven. 7503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:58,733 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:44:58,733 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2018-04-13 15:44:58,734 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:44:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:58,734 INFO L182 omatonBuilderFactory]: Interpolants [37799#true, 37800#false, 37803#(= main_~i~0 0), 37804#(= main_~i~0 1), 37805#(= main_~i~0 2), 37806#(= main_~i~0 3), 37807#(= main_~i~0 4), 37808#(= main_~i~0 5), 37809#(= main_~i~0 6), 37810#(= main_~i~0 7), 37811#(= main_~i~0 8), 37812#(= main_~i~0 9), 37813#(= main_~i~0 10), 37814#(= main_~i~0 11), 37815#(= main_~i~0 12), 37816#(= main_~i~0 13), 37817#(= main_~i~0 14), 37818#(= main_~i~0 15), 37819#(= main_~i~0 16), 37820#(= main_~i~0 17), 37821#(= main_~i~0 18), 37822#(= main_~i~0 19), 37823#(= main_~i~0 20), 37824#(= main_~i~0 21), 37825#(= main_~i~0 22), 37826#(= main_~i~0 23), 37827#(= main_~i~0 24), 37828#(= main_~i~0 25), 37829#(= main_~i~0 26), 37830#(= main_~i~0 27), 37831#(= main_~i~0 28), 37832#(= main_~i~0 29), 37833#(= main_~i~0 30), 37834#(= main_~i~0 31), 37835#(= main_~i~0 32), 37836#(= main_~i~0 33), 37837#(= main_~i~0 34), 37838#(= main_~i~0 35), 37839#(= main_~i~0 36), 37840#(= main_~i~0 37), 37841#(= main_~i~0 38), 37842#(= main_~i~0 39), 37843#(= main_~i~0 40), 37844#(= main_~i~0 41), 37845#(= main_~i~0 42), 37846#(= main_~i~0 43), 37847#(= main_~i~0 44), 37848#(= main_~i~0 45), 37849#(= main_~i~0 46), 37850#(= main_~i~0 47), 37851#(= main_~i~0 48), 37852#(= main_~i~0 49), 37853#(= main_~i~0 50), 37854#(= main_~i~0 51), 37855#(= main_~i~0 52), 37856#(= main_~i~0 53), 37857#(= main_~i~0 54), 37858#(= main_~i~0 55), 37859#(= main_~i~0 56), 37860#(= main_~i~0 57), 37861#(= main_~i~0 58), 37862#(= main_~i~0 59), 37863#(= main_~i~0 60), 37864#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:44:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 7503 backedges. 0 proven. 7503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:44:58,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-13 15:44:58,735 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-13 15:44:58,735 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=3846, Unknown=0, NotChecked=0, Total=4032 [2018-04-13 15:44:58,735 INFO L87 Difference]: Start difference. First operand 562 states and 563 transitions. Second operand 64 states. [2018-04-13 15:45:03,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:45:03,768 INFO L93 Difference]: Finished difference Result 571 states and 572 transitions. [2018-04-13 15:45:03,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-04-13 15:45:03,768 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 252 [2018-04-13 15:45:03,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:45:03,769 INFO L225 Difference]: With dead ends: 571 [2018-04-13 15:45:03,769 INFO L226 Difference]: Without dead ends: 571 [2018-04-13 15:45:03,770 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=186, Invalid=3846, Unknown=0, NotChecked=0, Total=4032 [2018-04-13 15:45:03,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2018-04-13 15:45:03,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2018-04-13 15:45:03,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2018-04-13 15:45:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 572 transitions. [2018-04-13 15:45:03,772 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 572 transitions. Word has length 252 [2018-04-13 15:45:03,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:45:03,772 INFO L459 AbstractCegarLoop]: Abstraction has 571 states and 572 transitions. [2018-04-13 15:45:03,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-13 15:45:03,772 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 572 transitions. [2018-04-13 15:45:03,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-04-13 15:45:03,773 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:45:03,773 INFO L355 BasicCegarLoop]: trace histogram [63, 63, 62, 62, 1, 1, 1, 1, 1, 1] [2018-04-13 15:45:03,773 INFO L408 AbstractCegarLoop]: === Iteration 63 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:45:03,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1527120418, now seen corresponding path program 62 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:45:03,775 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:45:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:04,668 INFO L134 CoverageAnalysis]: Checked inductivity of 7750 backedges. 0 proven. 7750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:04,683 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:45:04,683 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-04-13 15:45:04,684 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:45:04,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:04,684 INFO L182 omatonBuilderFactory]: Interpolants [39040#(= main_~i~0 29), 39041#(= main_~i~0 30), 39042#(= main_~i~0 31), 39043#(= main_~i~0 32), 39044#(= main_~i~0 33), 39045#(= main_~i~0 34), 39046#(= main_~i~0 35), 39047#(= main_~i~0 36), 39048#(= main_~i~0 37), 39049#(= main_~i~0 38), 39050#(= main_~i~0 39), 39051#(= main_~i~0 40), 39052#(= main_~i~0 41), 39053#(= main_~i~0 42), 39054#(= main_~i~0 43), 39055#(= main_~i~0 44), 39056#(= main_~i~0 45), 39057#(= main_~i~0 46), 39058#(= main_~i~0 47), 39059#(= main_~i~0 48), 39060#(= main_~i~0 49), 39061#(= main_~i~0 50), 39062#(= main_~i~0 51), 39063#(= main_~i~0 52), 39064#(= main_~i~0 53), 39065#(= main_~i~0 54), 39066#(= main_~i~0 55), 39067#(= main_~i~0 56), 39068#(= main_~i~0 57), 39069#(= main_~i~0 58), 39070#(= main_~i~0 59), 39071#(= main_~i~0 60), 39072#(= main_~i~0 61), 39073#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 39007#true, 39008#false, 39011#(= main_~i~0 0), 39012#(= main_~i~0 1), 39013#(= main_~i~0 2), 39014#(= main_~i~0 3), 39015#(= main_~i~0 4), 39016#(= main_~i~0 5), 39017#(= main_~i~0 6), 39018#(= main_~i~0 7), 39019#(= main_~i~0 8), 39020#(= main_~i~0 9), 39021#(= main_~i~0 10), 39022#(= main_~i~0 11), 39023#(= main_~i~0 12), 39024#(= main_~i~0 13), 39025#(= main_~i~0 14), 39026#(= main_~i~0 15), 39027#(= main_~i~0 16), 39028#(= main_~i~0 17), 39029#(= main_~i~0 18), 39030#(= main_~i~0 19), 39031#(= main_~i~0 20), 39032#(= main_~i~0 21), 39033#(= main_~i~0 22), 39034#(= main_~i~0 23), 39035#(= main_~i~0 24), 39036#(= main_~i~0 25), 39037#(= main_~i~0 26), 39038#(= main_~i~0 27), 39039#(= main_~i~0 28)] [2018-04-13 15:45:04,684 INFO L134 CoverageAnalysis]: Checked inductivity of 7750 backedges. 0 proven. 7750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:04,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-04-13 15:45:04,684 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-04-13 15:45:04,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=3971, Unknown=0, NotChecked=0, Total=4160 [2018-04-13 15:45:04,685 INFO L87 Difference]: Start difference. First operand 571 states and 572 transitions. Second operand 65 states. [2018-04-13 15:45:09,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:45:09,564 INFO L93 Difference]: Finished difference Result 580 states and 581 transitions. [2018-04-13 15:45:09,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-04-13 15:45:09,565 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 256 [2018-04-13 15:45:09,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:45:09,566 INFO L225 Difference]: With dead ends: 580 [2018-04-13 15:45:09,566 INFO L226 Difference]: Without dead ends: 580 [2018-04-13 15:45:09,566 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=189, Invalid=3971, Unknown=0, NotChecked=0, Total=4160 [2018-04-13 15:45:09,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2018-04-13 15:45:09,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2018-04-13 15:45:09,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2018-04-13 15:45:09,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 581 transitions. [2018-04-13 15:45:09,568 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 581 transitions. Word has length 256 [2018-04-13 15:45:09,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:45:09,569 INFO L459 AbstractCegarLoop]: Abstraction has 580 states and 581 transitions. [2018-04-13 15:45:09,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-04-13 15:45:09,569 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 581 transitions. [2018-04-13 15:45:09,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-04-13 15:45:09,569 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:45:09,569 INFO L355 BasicCegarLoop]: trace histogram [64, 64, 63, 63, 1, 1, 1, 1, 1, 1] [2018-04-13 15:45:09,569 INFO L408 AbstractCegarLoop]: === Iteration 64 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:45:09,569 INFO L82 PathProgramCache]: Analyzing trace with hash 2047247063, now seen corresponding path program 63 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:45:09,572 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:45:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:10,476 INFO L134 CoverageAnalysis]: Checked inductivity of 8001 backedges. 0 proven. 8001 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:10,491 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:45:10,492 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-04-13 15:45:10,492 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:45:10,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:10,492 INFO L182 omatonBuilderFactory]: Interpolants [40234#true, 40235#false, 40238#(= main_~i~0 0), 40239#(= main_~i~0 1), 40240#(= main_~i~0 2), 40241#(= main_~i~0 3), 40242#(= main_~i~0 4), 40243#(= main_~i~0 5), 40244#(= main_~i~0 6), 40245#(= main_~i~0 7), 40246#(= main_~i~0 8), 40247#(= main_~i~0 9), 40248#(= main_~i~0 10), 40249#(= main_~i~0 11), 40250#(= main_~i~0 12), 40251#(= main_~i~0 13), 40252#(= main_~i~0 14), 40253#(= main_~i~0 15), 40254#(= main_~i~0 16), 40255#(= main_~i~0 17), 40256#(= main_~i~0 18), 40257#(= main_~i~0 19), 40258#(= main_~i~0 20), 40259#(= main_~i~0 21), 40260#(= main_~i~0 22), 40261#(= main_~i~0 23), 40262#(= main_~i~0 24), 40263#(= main_~i~0 25), 40264#(= main_~i~0 26), 40265#(= main_~i~0 27), 40266#(= main_~i~0 28), 40267#(= main_~i~0 29), 40268#(= main_~i~0 30), 40269#(= main_~i~0 31), 40270#(= main_~i~0 32), 40271#(= main_~i~0 33), 40272#(= main_~i~0 34), 40273#(= main_~i~0 35), 40274#(= main_~i~0 36), 40275#(= main_~i~0 37), 40276#(= main_~i~0 38), 40277#(= main_~i~0 39), 40278#(= main_~i~0 40), 40279#(= main_~i~0 41), 40280#(= main_~i~0 42), 40281#(= main_~i~0 43), 40282#(= main_~i~0 44), 40283#(= main_~i~0 45), 40284#(= main_~i~0 46), 40285#(= main_~i~0 47), 40286#(= main_~i~0 48), 40287#(= main_~i~0 49), 40288#(= main_~i~0 50), 40289#(= main_~i~0 51), 40290#(= main_~i~0 52), 40291#(= main_~i~0 53), 40292#(= main_~i~0 54), 40293#(= main_~i~0 55), 40294#(= main_~i~0 56), 40295#(= main_~i~0 57), 40296#(= main_~i~0 58), 40297#(= main_~i~0 59), 40298#(= main_~i~0 60), 40299#(= main_~i~0 61), 40300#(= main_~i~0 62), 40301#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:45:10,492 INFO L134 CoverageAnalysis]: Checked inductivity of 8001 backedges. 0 proven. 8001 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:10,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-04-13 15:45:10,493 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-04-13 15:45:10,493 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=4098, Unknown=0, NotChecked=0, Total=4290 [2018-04-13 15:45:10,493 INFO L87 Difference]: Start difference. First operand 580 states and 581 transitions. Second operand 66 states. [2018-04-13 15:45:15,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:45:15,555 INFO L93 Difference]: Finished difference Result 589 states and 590 transitions. [2018-04-13 15:45:15,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-04-13 15:45:15,555 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 260 [2018-04-13 15:45:15,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:45:15,556 INFO L225 Difference]: With dead ends: 589 [2018-04-13 15:45:15,557 INFO L226 Difference]: Without dead ends: 589 [2018-04-13 15:45:15,557 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=192, Invalid=4098, Unknown=0, NotChecked=0, Total=4290 [2018-04-13 15:45:15,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2018-04-13 15:45:15,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 589. [2018-04-13 15:45:15,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2018-04-13 15:45:15,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 590 transitions. [2018-04-13 15:45:15,559 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 590 transitions. Word has length 260 [2018-04-13 15:45:15,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:45:15,559 INFO L459 AbstractCegarLoop]: Abstraction has 589 states and 590 transitions. [2018-04-13 15:45:15,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-04-13 15:45:15,559 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 590 transitions. [2018-04-13 15:45:15,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-04-13 15:45:15,560 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:45:15,560 INFO L355 BasicCegarLoop]: trace histogram [65, 65, 64, 64, 1, 1, 1, 1, 1, 1] [2018-04-13 15:45:15,560 INFO L408 AbstractCegarLoop]: === Iteration 65 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:45:15,560 INFO L82 PathProgramCache]: Analyzing trace with hash 988144464, now seen corresponding path program 64 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:45:15,564 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:45:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:16,467 INFO L134 CoverageAnalysis]: Checked inductivity of 8256 backedges. 0 proven. 8256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:16,481 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:45:16,481 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-04-13 15:45:16,481 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:45:16,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:16,482 INFO L182 omatonBuilderFactory]: Interpolants [41480#true, 41481#false, 41484#(= main_~i~0 0), 41485#(= main_~i~0 1), 41486#(= main_~i~0 2), 41487#(= main_~i~0 3), 41488#(= main_~i~0 4), 41489#(= main_~i~0 5), 41490#(= main_~i~0 6), 41491#(= main_~i~0 7), 41492#(= main_~i~0 8), 41493#(= main_~i~0 9), 41494#(= main_~i~0 10), 41495#(= main_~i~0 11), 41496#(= main_~i~0 12), 41497#(= main_~i~0 13), 41498#(= main_~i~0 14), 41499#(= main_~i~0 15), 41500#(= main_~i~0 16), 41501#(= main_~i~0 17), 41502#(= main_~i~0 18), 41503#(= main_~i~0 19), 41504#(= main_~i~0 20), 41505#(= main_~i~0 21), 41506#(= main_~i~0 22), 41507#(= main_~i~0 23), 41508#(= main_~i~0 24), 41509#(= main_~i~0 25), 41510#(= main_~i~0 26), 41511#(= main_~i~0 27), 41512#(= main_~i~0 28), 41513#(= main_~i~0 29), 41514#(= main_~i~0 30), 41515#(= main_~i~0 31), 41516#(= main_~i~0 32), 41517#(= main_~i~0 33), 41518#(= main_~i~0 34), 41519#(= main_~i~0 35), 41520#(= main_~i~0 36), 41521#(= main_~i~0 37), 41522#(= main_~i~0 38), 41523#(= main_~i~0 39), 41524#(= main_~i~0 40), 41525#(= main_~i~0 41), 41526#(= main_~i~0 42), 41527#(= main_~i~0 43), 41528#(= main_~i~0 44), 41529#(= main_~i~0 45), 41530#(= main_~i~0 46), 41531#(= main_~i~0 47), 41532#(= main_~i~0 48), 41533#(= main_~i~0 49), 41534#(= main_~i~0 50), 41535#(= main_~i~0 51), 41536#(= main_~i~0 52), 41537#(= main_~i~0 53), 41538#(= main_~i~0 54), 41539#(= main_~i~0 55), 41540#(= main_~i~0 56), 41541#(= main_~i~0 57), 41542#(= main_~i~0 58), 41543#(= main_~i~0 59), 41544#(= main_~i~0 60), 41545#(= main_~i~0 61), 41546#(= main_~i~0 62), 41547#(= main_~i~0 63), 41548#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:45:16,482 INFO L134 CoverageAnalysis]: Checked inductivity of 8256 backedges. 0 proven. 8256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:16,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-04-13 15:45:16,482 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-04-13 15:45:16,482 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=4227, Unknown=0, NotChecked=0, Total=4422 [2018-04-13 15:45:16,483 INFO L87 Difference]: Start difference. First operand 589 states and 590 transitions. Second operand 67 states. [2018-04-13 15:45:21,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:45:21,739 INFO L93 Difference]: Finished difference Result 598 states and 599 transitions. [2018-04-13 15:45:21,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-04-13 15:45:21,740 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 264 [2018-04-13 15:45:21,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:45:21,740 INFO L225 Difference]: With dead ends: 598 [2018-04-13 15:45:21,741 INFO L226 Difference]: Without dead ends: 598 [2018-04-13 15:45:21,741 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=195, Invalid=4227, Unknown=0, NotChecked=0, Total=4422 [2018-04-13 15:45:21,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2018-04-13 15:45:21,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2018-04-13 15:45:21,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2018-04-13 15:45:21,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 599 transitions. [2018-04-13 15:45:21,743 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 599 transitions. Word has length 264 [2018-04-13 15:45:21,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:45:21,743 INFO L459 AbstractCegarLoop]: Abstraction has 598 states and 599 transitions. [2018-04-13 15:45:21,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-04-13 15:45:21,743 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 599 transitions. [2018-04-13 15:45:21,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-04-13 15:45:21,744 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:45:21,744 INFO L355 BasicCegarLoop]: trace histogram [66, 66, 65, 65, 1, 1, 1, 1, 1, 1] [2018-04-13 15:45:21,744 INFO L408 AbstractCegarLoop]: === Iteration 66 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:45:21,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1010933943, now seen corresponding path program 65 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:45:21,746 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:45:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:22,711 INFO L134 CoverageAnalysis]: Checked inductivity of 8515 backedges. 0 proven. 8515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:22,727 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:45:22,727 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2018-04-13 15:45:22,727 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:45:22,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:22,727 INFO L182 omatonBuilderFactory]: Interpolants [42752#(= main_~i~0 3), 42753#(= main_~i~0 4), 42754#(= main_~i~0 5), 42755#(= main_~i~0 6), 42756#(= main_~i~0 7), 42757#(= main_~i~0 8), 42758#(= main_~i~0 9), 42759#(= main_~i~0 10), 42760#(= main_~i~0 11), 42761#(= main_~i~0 12), 42762#(= main_~i~0 13), 42763#(= main_~i~0 14), 42764#(= main_~i~0 15), 42765#(= main_~i~0 16), 42766#(= main_~i~0 17), 42767#(= main_~i~0 18), 42768#(= main_~i~0 19), 42769#(= main_~i~0 20), 42770#(= main_~i~0 21), 42771#(= main_~i~0 22), 42772#(= main_~i~0 23), 42773#(= main_~i~0 24), 42774#(= main_~i~0 25), 42775#(= main_~i~0 26), 42776#(= main_~i~0 27), 42777#(= main_~i~0 28), 42778#(= main_~i~0 29), 42779#(= main_~i~0 30), 42780#(= main_~i~0 31), 42781#(= main_~i~0 32), 42782#(= main_~i~0 33), 42783#(= main_~i~0 34), 42784#(= main_~i~0 35), 42785#(= main_~i~0 36), 42786#(= main_~i~0 37), 42787#(= main_~i~0 38), 42788#(= main_~i~0 39), 42789#(= main_~i~0 40), 42790#(= main_~i~0 41), 42791#(= main_~i~0 42), 42792#(= main_~i~0 43), 42793#(= main_~i~0 44), 42794#(= main_~i~0 45), 42795#(= main_~i~0 46), 42796#(= main_~i~0 47), 42797#(= main_~i~0 48), 42798#(= main_~i~0 49), 42799#(= main_~i~0 50), 42800#(= main_~i~0 51), 42801#(= main_~i~0 52), 42802#(= main_~i~0 53), 42803#(= main_~i~0 54), 42804#(= main_~i~0 55), 42805#(= main_~i~0 56), 42806#(= main_~i~0 57), 42807#(= main_~i~0 58), 42808#(= main_~i~0 59), 42809#(= main_~i~0 60), 42810#(= main_~i~0 61), 42811#(= main_~i~0 62), 42812#(= main_~i~0 63), 42813#(= main_~i~0 64), 42814#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 42745#true, 42746#false, 42749#(= main_~i~0 0), 42750#(= main_~i~0 1), 42751#(= main_~i~0 2)] [2018-04-13 15:45:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 8515 backedges. 0 proven. 8515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:22,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-04-13 15:45:22,728 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-04-13 15:45:22,728 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=4358, Unknown=0, NotChecked=0, Total=4556 [2018-04-13 15:45:22,728 INFO L87 Difference]: Start difference. First operand 598 states and 599 transitions. Second operand 68 states. [2018-04-13 15:45:28,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:45:28,215 INFO L93 Difference]: Finished difference Result 607 states and 608 transitions. [2018-04-13 15:45:28,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-13 15:45:28,216 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 268 [2018-04-13 15:45:28,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:45:28,217 INFO L225 Difference]: With dead ends: 607 [2018-04-13 15:45:28,217 INFO L226 Difference]: Without dead ends: 607 [2018-04-13 15:45:28,217 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=198, Invalid=4358, Unknown=0, NotChecked=0, Total=4556 [2018-04-13 15:45:28,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2018-04-13 15:45:28,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2018-04-13 15:45:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2018-04-13 15:45:28,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 608 transitions. [2018-04-13 15:45:28,220 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 608 transitions. Word has length 268 [2018-04-13 15:45:28,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:45:28,220 INFO L459 AbstractCegarLoop]: Abstraction has 607 states and 608 transitions. [2018-04-13 15:45:28,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-04-13 15:45:28,220 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 608 transitions. [2018-04-13 15:45:28,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-04-13 15:45:28,221 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:45:28,222 INFO L355 BasicCegarLoop]: trace histogram [67, 67, 66, 66, 1, 1, 1, 1, 1, 1] [2018-04-13 15:45:28,222 INFO L408 AbstractCegarLoop]: === Iteration 67 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:45:28,222 INFO L82 PathProgramCache]: Analyzing trace with hash -208259390, now seen corresponding path program 66 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:45:28,224 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:45:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 0 proven. 8778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:29,227 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:45:29,227 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-04-13 15:45:29,227 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:45:29,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:29,228 INFO L182 omatonBuilderFactory]: Interpolants [44033#(= main_~i~0 0), 44034#(= main_~i~0 1), 44035#(= main_~i~0 2), 44036#(= main_~i~0 3), 44037#(= main_~i~0 4), 44038#(= main_~i~0 5), 44039#(= main_~i~0 6), 44040#(= main_~i~0 7), 44041#(= main_~i~0 8), 44042#(= main_~i~0 9), 44043#(= main_~i~0 10), 44044#(= main_~i~0 11), 44045#(= main_~i~0 12), 44046#(= main_~i~0 13), 44047#(= main_~i~0 14), 44048#(= main_~i~0 15), 44049#(= main_~i~0 16), 44050#(= main_~i~0 17), 44051#(= main_~i~0 18), 44052#(= main_~i~0 19), 44053#(= main_~i~0 20), 44054#(= main_~i~0 21), 44055#(= main_~i~0 22), 44056#(= main_~i~0 23), 44057#(= main_~i~0 24), 44058#(= main_~i~0 25), 44059#(= main_~i~0 26), 44060#(= main_~i~0 27), 44061#(= main_~i~0 28), 44062#(= main_~i~0 29), 44063#(= main_~i~0 30), 44064#(= main_~i~0 31), 44065#(= main_~i~0 32), 44066#(= main_~i~0 33), 44067#(= main_~i~0 34), 44068#(= main_~i~0 35), 44069#(= main_~i~0 36), 44070#(= main_~i~0 37), 44071#(= main_~i~0 38), 44072#(= main_~i~0 39), 44073#(= main_~i~0 40), 44074#(= main_~i~0 41), 44075#(= main_~i~0 42), 44076#(= main_~i~0 43), 44077#(= main_~i~0 44), 44078#(= main_~i~0 45), 44079#(= main_~i~0 46), 44080#(= main_~i~0 47), 44081#(= main_~i~0 48), 44082#(= main_~i~0 49), 44083#(= main_~i~0 50), 44084#(= main_~i~0 51), 44085#(= main_~i~0 52), 44086#(= main_~i~0 53), 44087#(= main_~i~0 54), 44088#(= main_~i~0 55), 44089#(= main_~i~0 56), 44090#(= main_~i~0 57), 44091#(= main_~i~0 58), 44092#(= main_~i~0 59), 44093#(= main_~i~0 60), 44094#(= main_~i~0 61), 44095#(= main_~i~0 62), 44096#(= main_~i~0 63), 44097#(= main_~i~0 64), 44098#(= main_~i~0 65), 44099#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 44029#true, 44030#false] [2018-04-13 15:45:29,228 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 0 proven. 8778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:29,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-04-13 15:45:29,228 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-04-13 15:45:29,228 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=4491, Unknown=0, NotChecked=0, Total=4692 [2018-04-13 15:45:29,228 INFO L87 Difference]: Start difference. First operand 607 states and 608 transitions. Second operand 69 states. [2018-04-13 15:45:34,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:45:34,818 INFO L93 Difference]: Finished difference Result 616 states and 617 transitions. [2018-04-13 15:45:34,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-04-13 15:45:34,819 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 272 [2018-04-13 15:45:34,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:45:34,819 INFO L225 Difference]: With dead ends: 616 [2018-04-13 15:45:34,820 INFO L226 Difference]: Without dead ends: 616 [2018-04-13 15:45:34,820 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=201, Invalid=4491, Unknown=0, NotChecked=0, Total=4692 [2018-04-13 15:45:34,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2018-04-13 15:45:34,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2018-04-13 15:45:34,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2018-04-13 15:45:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 617 transitions. [2018-04-13 15:45:34,822 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 617 transitions. Word has length 272 [2018-04-13 15:45:34,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:45:34,822 INFO L459 AbstractCegarLoop]: Abstraction has 616 states and 617 transitions. [2018-04-13 15:45:34,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-04-13 15:45:34,822 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 617 transitions. [2018-04-13 15:45:34,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-04-13 15:45:34,823 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:45:34,823 INFO L355 BasicCegarLoop]: trace histogram [68, 68, 67, 67, 1, 1, 1, 1, 1, 1] [2018-04-13 15:45:34,823 INFO L408 AbstractCegarLoop]: === Iteration 68 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:45:34,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1012115899, now seen corresponding path program 67 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:45:34,825 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:45:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:35,965 INFO L134 CoverageAnalysis]: Checked inductivity of 9045 backedges. 0 proven. 9045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:35,980 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:45:35,980 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-04-13 15:45:35,980 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:45:35,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:35,980 INFO L182 omatonBuilderFactory]: Interpolants [45332#true, 45333#false, 45336#(= main_~i~0 0), 45337#(= main_~i~0 1), 45338#(= main_~i~0 2), 45339#(= main_~i~0 3), 45340#(= main_~i~0 4), 45341#(= main_~i~0 5), 45342#(= main_~i~0 6), 45343#(= main_~i~0 7), 45344#(= main_~i~0 8), 45345#(= main_~i~0 9), 45346#(= main_~i~0 10), 45347#(= main_~i~0 11), 45348#(= main_~i~0 12), 45349#(= main_~i~0 13), 45350#(= main_~i~0 14), 45351#(= main_~i~0 15), 45352#(= main_~i~0 16), 45353#(= main_~i~0 17), 45354#(= main_~i~0 18), 45355#(= main_~i~0 19), 45356#(= main_~i~0 20), 45357#(= main_~i~0 21), 45358#(= main_~i~0 22), 45359#(= main_~i~0 23), 45360#(= main_~i~0 24), 45361#(= main_~i~0 25), 45362#(= main_~i~0 26), 45363#(= main_~i~0 27), 45364#(= main_~i~0 28), 45365#(= main_~i~0 29), 45366#(= main_~i~0 30), 45367#(= main_~i~0 31), 45368#(= main_~i~0 32), 45369#(= main_~i~0 33), 45370#(= main_~i~0 34), 45371#(= main_~i~0 35), 45372#(= main_~i~0 36), 45373#(= main_~i~0 37), 45374#(= main_~i~0 38), 45375#(= main_~i~0 39), 45376#(= main_~i~0 40), 45377#(= main_~i~0 41), 45378#(= main_~i~0 42), 45379#(= main_~i~0 43), 45380#(= main_~i~0 44), 45381#(= main_~i~0 45), 45382#(= main_~i~0 46), 45383#(= main_~i~0 47), 45384#(= main_~i~0 48), 45385#(= main_~i~0 49), 45386#(= main_~i~0 50), 45387#(= main_~i~0 51), 45388#(= main_~i~0 52), 45389#(= main_~i~0 53), 45390#(= main_~i~0 54), 45391#(= main_~i~0 55), 45392#(= main_~i~0 56), 45393#(= main_~i~0 57), 45394#(= main_~i~0 58), 45395#(= main_~i~0 59), 45396#(= main_~i~0 60), 45397#(= main_~i~0 61), 45398#(= main_~i~0 62), 45399#(= main_~i~0 63), 45400#(= main_~i~0 64), 45401#(= main_~i~0 65), 45402#(= main_~i~0 66), 45403#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:45:35,981 INFO L134 CoverageAnalysis]: Checked inductivity of 9045 backedges. 0 proven. 9045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:35,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-04-13 15:45:35,981 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-04-13 15:45:35,981 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=4626, Unknown=0, NotChecked=0, Total=4830 [2018-04-13 15:45:35,981 INFO L87 Difference]: Start difference. First operand 616 states and 617 transitions. Second operand 70 states. [2018-04-13 15:45:41,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:45:41,712 INFO L93 Difference]: Finished difference Result 625 states and 626 transitions. [2018-04-13 15:45:41,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-04-13 15:45:41,712 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 276 [2018-04-13 15:45:41,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:45:41,713 INFO L225 Difference]: With dead ends: 625 [2018-04-13 15:45:41,713 INFO L226 Difference]: Without dead ends: 625 [2018-04-13 15:45:41,713 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=204, Invalid=4626, Unknown=0, NotChecked=0, Total=4830 [2018-04-13 15:45:41,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2018-04-13 15:45:41,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2018-04-13 15:45:41,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-04-13 15:45:41,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 626 transitions. [2018-04-13 15:45:41,716 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 626 transitions. Word has length 276 [2018-04-13 15:45:41,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:45:41,716 INFO L459 AbstractCegarLoop]: Abstraction has 625 states and 626 transitions. [2018-04-13 15:45:41,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-04-13 15:45:41,716 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 626 transitions. [2018-04-13 15:45:41,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-04-13 15:45:41,717 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:45:41,717 INFO L355 BasicCegarLoop]: trace histogram [69, 69, 68, 68, 1, 1, 1, 1, 1, 1] [2018-04-13 15:45:41,717 INFO L408 AbstractCegarLoop]: === Iteration 69 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:45:41,718 INFO L82 PathProgramCache]: Analyzing trace with hash 851245108, now seen corresponding path program 68 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:45:41,723 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:45:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 9316 backedges. 0 proven. 9316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:42,786 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:45:42,786 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2018-04-13 15:45:42,786 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:45:42,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:42,787 INFO L182 omatonBuilderFactory]: Interpolants [46720#(= main_~i~0 62), 46721#(= main_~i~0 63), 46722#(= main_~i~0 64), 46723#(= main_~i~0 65), 46724#(= main_~i~0 66), 46725#(= main_~i~0 67), 46726#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 46654#true, 46655#false, 46658#(= main_~i~0 0), 46659#(= main_~i~0 1), 46660#(= main_~i~0 2), 46661#(= main_~i~0 3), 46662#(= main_~i~0 4), 46663#(= main_~i~0 5), 46664#(= main_~i~0 6), 46665#(= main_~i~0 7), 46666#(= main_~i~0 8), 46667#(= main_~i~0 9), 46668#(= main_~i~0 10), 46669#(= main_~i~0 11), 46670#(= main_~i~0 12), 46671#(= main_~i~0 13), 46672#(= main_~i~0 14), 46673#(= main_~i~0 15), 46674#(= main_~i~0 16), 46675#(= main_~i~0 17), 46676#(= main_~i~0 18), 46677#(= main_~i~0 19), 46678#(= main_~i~0 20), 46679#(= main_~i~0 21), 46680#(= main_~i~0 22), 46681#(= main_~i~0 23), 46682#(= main_~i~0 24), 46683#(= main_~i~0 25), 46684#(= main_~i~0 26), 46685#(= main_~i~0 27), 46686#(= main_~i~0 28), 46687#(= main_~i~0 29), 46688#(= main_~i~0 30), 46689#(= main_~i~0 31), 46690#(= main_~i~0 32), 46691#(= main_~i~0 33), 46692#(= main_~i~0 34), 46693#(= main_~i~0 35), 46694#(= main_~i~0 36), 46695#(= main_~i~0 37), 46696#(= main_~i~0 38), 46697#(= main_~i~0 39), 46698#(= main_~i~0 40), 46699#(= main_~i~0 41), 46700#(= main_~i~0 42), 46701#(= main_~i~0 43), 46702#(= main_~i~0 44), 46703#(= main_~i~0 45), 46704#(= main_~i~0 46), 46705#(= main_~i~0 47), 46706#(= main_~i~0 48), 46707#(= main_~i~0 49), 46708#(= main_~i~0 50), 46709#(= main_~i~0 51), 46710#(= main_~i~0 52), 46711#(= main_~i~0 53), 46712#(= main_~i~0 54), 46713#(= main_~i~0 55), 46714#(= main_~i~0 56), 46715#(= main_~i~0 57), 46716#(= main_~i~0 58), 46717#(= main_~i~0 59), 46718#(= main_~i~0 60), 46719#(= main_~i~0 61)] [2018-04-13 15:45:42,787 INFO L134 CoverageAnalysis]: Checked inductivity of 9316 backedges. 0 proven. 9316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:42,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-04-13 15:45:42,787 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-04-13 15:45:42,787 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=4763, Unknown=0, NotChecked=0, Total=4970 [2018-04-13 15:45:42,788 INFO L87 Difference]: Start difference. First operand 625 states and 626 transitions. Second operand 71 states. [2018-04-13 15:45:48,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:45:48,662 INFO L93 Difference]: Finished difference Result 634 states and 635 transitions. [2018-04-13 15:45:48,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-04-13 15:45:48,662 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 280 [2018-04-13 15:45:48,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:45:48,663 INFO L225 Difference]: With dead ends: 634 [2018-04-13 15:45:48,663 INFO L226 Difference]: Without dead ends: 634 [2018-04-13 15:45:48,663 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=207, Invalid=4763, Unknown=0, NotChecked=0, Total=4970 [2018-04-13 15:45:48,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-04-13 15:45:48,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2018-04-13 15:45:48,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2018-04-13 15:45:48,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 635 transitions. [2018-04-13 15:45:48,666 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 635 transitions. Word has length 280 [2018-04-13 15:45:48,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:45:48,666 INFO L459 AbstractCegarLoop]: Abstraction has 634 states and 635 transitions. [2018-04-13 15:45:48,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-04-13 15:45:48,666 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 635 transitions. [2018-04-13 15:45:48,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-04-13 15:45:48,667 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:45:48,667 INFO L355 BasicCegarLoop]: trace histogram [70, 70, 69, 69, 1, 1, 1, 1, 1, 1] [2018-04-13 15:45:48,667 INFO L408 AbstractCegarLoop]: === Iteration 70 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:45:48,667 INFO L82 PathProgramCache]: Analyzing trace with hash 511205933, now seen corresponding path program 69 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:45:48,669 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:45:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:49,736 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:49,751 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:45:49,751 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2018-04-13 15:45:49,751 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:45:49,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:49,752 INFO L182 omatonBuilderFactory]: Interpolants [48000#(= main_~i~0 1), 48001#(= main_~i~0 2), 48002#(= main_~i~0 3), 48003#(= main_~i~0 4), 48004#(= main_~i~0 5), 48005#(= main_~i~0 6), 48006#(= main_~i~0 7), 48007#(= main_~i~0 8), 48008#(= main_~i~0 9), 48009#(= main_~i~0 10), 48010#(= main_~i~0 11), 48011#(= main_~i~0 12), 48012#(= main_~i~0 13), 48013#(= main_~i~0 14), 48014#(= main_~i~0 15), 48015#(= main_~i~0 16), 48016#(= main_~i~0 17), 48017#(= main_~i~0 18), 48018#(= main_~i~0 19), 48019#(= main_~i~0 20), 48020#(= main_~i~0 21), 48021#(= main_~i~0 22), 48022#(= main_~i~0 23), 48023#(= main_~i~0 24), 48024#(= main_~i~0 25), 48025#(= main_~i~0 26), 48026#(= main_~i~0 27), 48027#(= main_~i~0 28), 48028#(= main_~i~0 29), 48029#(= main_~i~0 30), 48030#(= main_~i~0 31), 48031#(= main_~i~0 32), 48032#(= main_~i~0 33), 48033#(= main_~i~0 34), 48034#(= main_~i~0 35), 48035#(= main_~i~0 36), 48036#(= main_~i~0 37), 48037#(= main_~i~0 38), 48038#(= main_~i~0 39), 48039#(= main_~i~0 40), 48040#(= main_~i~0 41), 48041#(= main_~i~0 42), 48042#(= main_~i~0 43), 48043#(= main_~i~0 44), 48044#(= main_~i~0 45), 48045#(= main_~i~0 46), 48046#(= main_~i~0 47), 48047#(= main_~i~0 48), 48048#(= main_~i~0 49), 48049#(= main_~i~0 50), 48050#(= main_~i~0 51), 48051#(= main_~i~0 52), 48052#(= main_~i~0 53), 48053#(= main_~i~0 54), 48054#(= main_~i~0 55), 48055#(= main_~i~0 56), 48056#(= main_~i~0 57), 48057#(= main_~i~0 58), 48058#(= main_~i~0 59), 48059#(= main_~i~0 60), 48060#(= main_~i~0 61), 48061#(= main_~i~0 62), 48062#(= main_~i~0 63), 48063#(= main_~i~0 64), 48064#(= main_~i~0 65), 48065#(= main_~i~0 66), 48066#(= main_~i~0 67), 48067#(= main_~i~0 68), 48068#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 47995#true, 47996#false, 47999#(= main_~i~0 0)] [2018-04-13 15:45:49,752 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:49,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-04-13 15:45:49,752 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-04-13 15:45:49,752 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=4902, Unknown=0, NotChecked=0, Total=5112 [2018-04-13 15:45:49,752 INFO L87 Difference]: Start difference. First operand 634 states and 635 transitions. Second operand 72 states. [2018-04-13 15:45:55,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:45:55,856 INFO L93 Difference]: Finished difference Result 643 states and 644 transitions. [2018-04-13 15:45:55,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-04-13 15:45:55,856 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 284 [2018-04-13 15:45:55,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:45:55,857 INFO L225 Difference]: With dead ends: 643 [2018-04-13 15:45:55,857 INFO L226 Difference]: Without dead ends: 643 [2018-04-13 15:45:55,857 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=210, Invalid=4902, Unknown=0, NotChecked=0, Total=5112 [2018-04-13 15:45:55,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2018-04-13 15:45:55,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2018-04-13 15:45:55,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2018-04-13 15:45:55,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 644 transitions. [2018-04-13 15:45:55,860 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 644 transitions. Word has length 284 [2018-04-13 15:45:55,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:45:55,860 INFO L459 AbstractCegarLoop]: Abstraction has 643 states and 644 transitions. [2018-04-13 15:45:55,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-04-13 15:45:55,860 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 644 transitions. [2018-04-13 15:45:55,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-04-13 15:45:55,860 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:45:55,861 INFO L355 BasicCegarLoop]: trace histogram [71, 71, 70, 70, 1, 1, 1, 1, 1, 1] [2018-04-13 15:45:55,861 INFO L408 AbstractCegarLoop]: === Iteration 71 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:45:55,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1978914906, now seen corresponding path program 70 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:45:55,863 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:45:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:45:57,007 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 9870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:57,022 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:45:57,022 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2018-04-13 15:45:57,022 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:45:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:57,023 INFO L182 omatonBuilderFactory]: Interpolants [49408#(= main_~i~0 49), 49409#(= main_~i~0 50), 49410#(= main_~i~0 51), 49411#(= main_~i~0 52), 49412#(= main_~i~0 53), 49413#(= main_~i~0 54), 49414#(= main_~i~0 55), 49415#(= main_~i~0 56), 49416#(= main_~i~0 57), 49417#(= main_~i~0 58), 49418#(= main_~i~0 59), 49419#(= main_~i~0 60), 49420#(= main_~i~0 61), 49421#(= main_~i~0 62), 49422#(= main_~i~0 63), 49423#(= main_~i~0 64), 49424#(= main_~i~0 65), 49425#(= main_~i~0 66), 49426#(= main_~i~0 67), 49427#(= main_~i~0 68), 49428#(= main_~i~0 69), 49429#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 49355#true, 49356#false, 49359#(= main_~i~0 0), 49360#(= main_~i~0 1), 49361#(= main_~i~0 2), 49362#(= main_~i~0 3), 49363#(= main_~i~0 4), 49364#(= main_~i~0 5), 49365#(= main_~i~0 6), 49366#(= main_~i~0 7), 49367#(= main_~i~0 8), 49368#(= main_~i~0 9), 49369#(= main_~i~0 10), 49370#(= main_~i~0 11), 49371#(= main_~i~0 12), 49372#(= main_~i~0 13), 49373#(= main_~i~0 14), 49374#(= main_~i~0 15), 49375#(= main_~i~0 16), 49376#(= main_~i~0 17), 49377#(= main_~i~0 18), 49378#(= main_~i~0 19), 49379#(= main_~i~0 20), 49380#(= main_~i~0 21), 49381#(= main_~i~0 22), 49382#(= main_~i~0 23), 49383#(= main_~i~0 24), 49384#(= main_~i~0 25), 49385#(= main_~i~0 26), 49386#(= main_~i~0 27), 49387#(= main_~i~0 28), 49388#(= main_~i~0 29), 49389#(= main_~i~0 30), 49390#(= main_~i~0 31), 49391#(= main_~i~0 32), 49392#(= main_~i~0 33), 49393#(= main_~i~0 34), 49394#(= main_~i~0 35), 49395#(= main_~i~0 36), 49396#(= main_~i~0 37), 49397#(= main_~i~0 38), 49398#(= main_~i~0 39), 49399#(= main_~i~0 40), 49400#(= main_~i~0 41), 49401#(= main_~i~0 42), 49402#(= main_~i~0 43), 49403#(= main_~i~0 44), 49404#(= main_~i~0 45), 49405#(= main_~i~0 46), 49406#(= main_~i~0 47), 49407#(= main_~i~0 48)] [2018-04-13 15:45:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 9870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:45:57,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-04-13 15:45:57,023 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-04-13 15:45:57,023 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=5043, Unknown=0, NotChecked=0, Total=5256 [2018-04-13 15:45:57,023 INFO L87 Difference]: Start difference. First operand 643 states and 644 transitions. Second operand 73 states. [2018-04-13 15:46:03,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:46:03,521 INFO L93 Difference]: Finished difference Result 652 states and 653 transitions. [2018-04-13 15:46:03,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-04-13 15:46:03,521 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 288 [2018-04-13 15:46:03,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:46:03,522 INFO L225 Difference]: With dead ends: 652 [2018-04-13 15:46:03,522 INFO L226 Difference]: Without dead ends: 652 [2018-04-13 15:46:03,523 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=213, Invalid=5043, Unknown=0, NotChecked=0, Total=5256 [2018-04-13 15:46:03,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2018-04-13 15:46:03,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2018-04-13 15:46:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2018-04-13 15:46:03,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 653 transitions. [2018-04-13 15:46:03,525 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 653 transitions. Word has length 288 [2018-04-13 15:46:03,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:46:03,525 INFO L459 AbstractCegarLoop]: Abstraction has 652 states and 653 transitions. [2018-04-13 15:46:03,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-04-13 15:46:03,525 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 653 transitions. [2018-04-13 15:46:03,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-04-13 15:46:03,526 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:46:03,526 INFO L355 BasicCegarLoop]: trace histogram [72, 72, 71, 71, 1, 1, 1, 1, 1, 1] [2018-04-13 15:46:03,526 INFO L408 AbstractCegarLoop]: === Iteration 72 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:46:03,526 INFO L82 PathProgramCache]: Analyzing trace with hash -757167969, now seen corresponding path program 71 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:46:03,528 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:46:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 10153 backedges. 0 proven. 10153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:04,718 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:46:04,718 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-04-13 15:46:04,718 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:46:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:04,719 INFO L182 omatonBuilderFactory]: Interpolants [50734#true, 50735#false, 50738#(= main_~i~0 0), 50739#(= main_~i~0 1), 50740#(= main_~i~0 2), 50741#(= main_~i~0 3), 50742#(= main_~i~0 4), 50743#(= main_~i~0 5), 50744#(= main_~i~0 6), 50745#(= main_~i~0 7), 50746#(= main_~i~0 8), 50747#(= main_~i~0 9), 50748#(= main_~i~0 10), 50749#(= main_~i~0 11), 50750#(= main_~i~0 12), 50751#(= main_~i~0 13), 50752#(= main_~i~0 14), 50753#(= main_~i~0 15), 50754#(= main_~i~0 16), 50755#(= main_~i~0 17), 50756#(= main_~i~0 18), 50757#(= main_~i~0 19), 50758#(= main_~i~0 20), 50759#(= main_~i~0 21), 50760#(= main_~i~0 22), 50761#(= main_~i~0 23), 50762#(= main_~i~0 24), 50763#(= main_~i~0 25), 50764#(= main_~i~0 26), 50765#(= main_~i~0 27), 50766#(= main_~i~0 28), 50767#(= main_~i~0 29), 50768#(= main_~i~0 30), 50769#(= main_~i~0 31), 50770#(= main_~i~0 32), 50771#(= main_~i~0 33), 50772#(= main_~i~0 34), 50773#(= main_~i~0 35), 50774#(= main_~i~0 36), 50775#(= main_~i~0 37), 50776#(= main_~i~0 38), 50777#(= main_~i~0 39), 50778#(= main_~i~0 40), 50779#(= main_~i~0 41), 50780#(= main_~i~0 42), 50781#(= main_~i~0 43), 50782#(= main_~i~0 44), 50783#(= main_~i~0 45), 50784#(= main_~i~0 46), 50785#(= main_~i~0 47), 50786#(= main_~i~0 48), 50787#(= main_~i~0 49), 50788#(= main_~i~0 50), 50789#(= main_~i~0 51), 50790#(= main_~i~0 52), 50791#(= main_~i~0 53), 50792#(= main_~i~0 54), 50793#(= main_~i~0 55), 50794#(= main_~i~0 56), 50795#(= main_~i~0 57), 50796#(= main_~i~0 58), 50797#(= main_~i~0 59), 50798#(= main_~i~0 60), 50799#(= main_~i~0 61), 50800#(= main_~i~0 62), 50801#(= main_~i~0 63), 50802#(= main_~i~0 64), 50803#(= main_~i~0 65), 50804#(= main_~i~0 66), 50805#(= main_~i~0 67), 50806#(= main_~i~0 68), 50807#(= main_~i~0 69), 50808#(= main_~i~0 70), 50809#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:46:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 10153 backedges. 0 proven. 10153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:04,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-04-13 15:46:04,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-04-13 15:46:04,719 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=5186, Unknown=0, NotChecked=0, Total=5402 [2018-04-13 15:46:04,719 INFO L87 Difference]: Start difference. First operand 652 states and 653 transitions. Second operand 74 states. [2018-04-13 15:46:11,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:46:11,201 INFO L93 Difference]: Finished difference Result 661 states and 662 transitions. [2018-04-13 15:46:11,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-04-13 15:46:11,202 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 292 [2018-04-13 15:46:11,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:46:11,203 INFO L225 Difference]: With dead ends: 661 [2018-04-13 15:46:11,203 INFO L226 Difference]: Without dead ends: 661 [2018-04-13 15:46:11,203 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=216, Invalid=5186, Unknown=0, NotChecked=0, Total=5402 [2018-04-13 15:46:11,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2018-04-13 15:46:11,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2018-04-13 15:46:11,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2018-04-13 15:46:11,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 662 transitions. [2018-04-13 15:46:11,206 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 662 transitions. Word has length 292 [2018-04-13 15:46:11,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:46:11,206 INFO L459 AbstractCegarLoop]: Abstraction has 661 states and 662 transitions. [2018-04-13 15:46:11,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-04-13 15:46:11,206 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 662 transitions. [2018-04-13 15:46:11,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2018-04-13 15:46:11,206 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:46:11,207 INFO L355 BasicCegarLoop]: trace histogram [73, 73, 72, 72, 1, 1, 1, 1, 1, 1] [2018-04-13 15:46:11,207 INFO L408 AbstractCegarLoop]: === Iteration 73 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:46:11,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1187658472, now seen corresponding path program 72 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:46:11,209 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:46:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 10440 backedges. 0 proven. 10440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:12,389 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:46:12,390 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2018-04-13 15:46:12,390 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:46:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:12,390 INFO L182 omatonBuilderFactory]: Interpolants [52132#true, 52133#false, 52136#(= main_~i~0 0), 52137#(= main_~i~0 1), 52138#(= main_~i~0 2), 52139#(= main_~i~0 3), 52140#(= main_~i~0 4), 52141#(= main_~i~0 5), 52142#(= main_~i~0 6), 52143#(= main_~i~0 7), 52144#(= main_~i~0 8), 52145#(= main_~i~0 9), 52146#(= main_~i~0 10), 52147#(= main_~i~0 11), 52148#(= main_~i~0 12), 52149#(= main_~i~0 13), 52150#(= main_~i~0 14), 52151#(= main_~i~0 15), 52152#(= main_~i~0 16), 52153#(= main_~i~0 17), 52154#(= main_~i~0 18), 52155#(= main_~i~0 19), 52156#(= main_~i~0 20), 52157#(= main_~i~0 21), 52158#(= main_~i~0 22), 52159#(= main_~i~0 23), 52160#(= main_~i~0 24), 52161#(= main_~i~0 25), 52162#(= main_~i~0 26), 52163#(= main_~i~0 27), 52164#(= main_~i~0 28), 52165#(= main_~i~0 29), 52166#(= main_~i~0 30), 52167#(= main_~i~0 31), 52168#(= main_~i~0 32), 52169#(= main_~i~0 33), 52170#(= main_~i~0 34), 52171#(= main_~i~0 35), 52172#(= main_~i~0 36), 52173#(= main_~i~0 37), 52174#(= main_~i~0 38), 52175#(= main_~i~0 39), 52176#(= main_~i~0 40), 52177#(= main_~i~0 41), 52178#(= main_~i~0 42), 52179#(= main_~i~0 43), 52180#(= main_~i~0 44), 52181#(= main_~i~0 45), 52182#(= main_~i~0 46), 52183#(= main_~i~0 47), 52184#(= main_~i~0 48), 52185#(= main_~i~0 49), 52186#(= main_~i~0 50), 52187#(= main_~i~0 51), 52188#(= main_~i~0 52), 52189#(= main_~i~0 53), 52190#(= main_~i~0 54), 52191#(= main_~i~0 55), 52192#(= main_~i~0 56), 52193#(= main_~i~0 57), 52194#(= main_~i~0 58), 52195#(= main_~i~0 59), 52196#(= main_~i~0 60), 52197#(= main_~i~0 61), 52198#(= main_~i~0 62), 52199#(= main_~i~0 63), 52200#(= main_~i~0 64), 52201#(= main_~i~0 65), 52202#(= main_~i~0 66), 52203#(= main_~i~0 67), 52204#(= main_~i~0 68), 52205#(= main_~i~0 69), 52206#(= main_~i~0 70), 52207#(= main_~i~0 71), 52208#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:46:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 10440 backedges. 0 proven. 10440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:12,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 75 states [2018-04-13 15:46:12,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2018-04-13 15:46:12,391 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=5331, Unknown=0, NotChecked=0, Total=5550 [2018-04-13 15:46:12,391 INFO L87 Difference]: Start difference. First operand 661 states and 662 transitions. Second operand 75 states. [2018-04-13 15:46:19,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:46:19,039 INFO L93 Difference]: Finished difference Result 670 states and 671 transitions. [2018-04-13 15:46:19,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-04-13 15:46:19,039 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 296 [2018-04-13 15:46:19,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:46:19,041 INFO L225 Difference]: With dead ends: 670 [2018-04-13 15:46:19,041 INFO L226 Difference]: Without dead ends: 670 [2018-04-13 15:46:19,041 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=219, Invalid=5331, Unknown=0, NotChecked=0, Total=5550 [2018-04-13 15:46:19,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2018-04-13 15:46:19,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2018-04-13 15:46:19,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2018-04-13 15:46:19,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 671 transitions. [2018-04-13 15:46:19,044 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 671 transitions. Word has length 296 [2018-04-13 15:46:19,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:46:19,044 INFO L459 AbstractCegarLoop]: Abstraction has 670 states and 671 transitions. [2018-04-13 15:46:19,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 75 states. [2018-04-13 15:46:19,044 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 671 transitions. [2018-04-13 15:46:19,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-04-13 15:46:19,045 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:46:19,045 INFO L355 BasicCegarLoop]: trace histogram [74, 74, 73, 73, 1, 1, 1, 1, 1, 1] [2018-04-13 15:46:19,045 INFO L408 AbstractCegarLoop]: === Iteration 74 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:46:19,045 INFO L82 PathProgramCache]: Analyzing trace with hash -264757999, now seen corresponding path program 73 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:46:19,047 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:46:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 10731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:20,244 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:46:20,244 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2018-04-13 15:46:20,244 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:46:20,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:20,244 INFO L182 omatonBuilderFactory]: Interpolants [53549#true, 53550#false, 53553#(= main_~i~0 0), 53554#(= main_~i~0 1), 53555#(= main_~i~0 2), 53556#(= main_~i~0 3), 53557#(= main_~i~0 4), 53558#(= main_~i~0 5), 53559#(= main_~i~0 6), 53560#(= main_~i~0 7), 53561#(= main_~i~0 8), 53562#(= main_~i~0 9), 53563#(= main_~i~0 10), 53564#(= main_~i~0 11), 53565#(= main_~i~0 12), 53566#(= main_~i~0 13), 53567#(= main_~i~0 14), 53568#(= main_~i~0 15), 53569#(= main_~i~0 16), 53570#(= main_~i~0 17), 53571#(= main_~i~0 18), 53572#(= main_~i~0 19), 53573#(= main_~i~0 20), 53574#(= main_~i~0 21), 53575#(= main_~i~0 22), 53576#(= main_~i~0 23), 53577#(= main_~i~0 24), 53578#(= main_~i~0 25), 53579#(= main_~i~0 26), 53580#(= main_~i~0 27), 53581#(= main_~i~0 28), 53582#(= main_~i~0 29), 53583#(= main_~i~0 30), 53584#(= main_~i~0 31), 53585#(= main_~i~0 32), 53586#(= main_~i~0 33), 53587#(= main_~i~0 34), 53588#(= main_~i~0 35), 53589#(= main_~i~0 36), 53590#(= main_~i~0 37), 53591#(= main_~i~0 38), 53592#(= main_~i~0 39), 53593#(= main_~i~0 40), 53594#(= main_~i~0 41), 53595#(= main_~i~0 42), 53596#(= main_~i~0 43), 53597#(= main_~i~0 44), 53598#(= main_~i~0 45), 53599#(= main_~i~0 46), 53600#(= main_~i~0 47), 53601#(= main_~i~0 48), 53602#(= main_~i~0 49), 53603#(= main_~i~0 50), 53604#(= main_~i~0 51), 53605#(= main_~i~0 52), 53606#(= main_~i~0 53), 53607#(= main_~i~0 54), 53608#(= main_~i~0 55), 53609#(= main_~i~0 56), 53610#(= main_~i~0 57), 53611#(= main_~i~0 58), 53612#(= main_~i~0 59), 53613#(= main_~i~0 60), 53614#(= main_~i~0 61), 53615#(= main_~i~0 62), 53616#(= main_~i~0 63), 53617#(= main_~i~0 64), 53618#(= main_~i~0 65), 53619#(= main_~i~0 66), 53620#(= main_~i~0 67), 53621#(= main_~i~0 68), 53622#(= main_~i~0 69), 53623#(= main_~i~0 70), 53624#(= main_~i~0 71), 53625#(= main_~i~0 72), 53626#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:46:20,245 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 10731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:20,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-04-13 15:46:20,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-04-13 15:46:20,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=5478, Unknown=0, NotChecked=0, Total=5700 [2018-04-13 15:46:20,245 INFO L87 Difference]: Start difference. First operand 670 states and 671 transitions. Second operand 76 states. [2018-04-13 15:46:26,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:46:26,992 INFO L93 Difference]: Finished difference Result 679 states and 680 transitions. [2018-04-13 15:46:26,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-04-13 15:46:26,992 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 300 [2018-04-13 15:46:26,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:46:26,993 INFO L225 Difference]: With dead ends: 679 [2018-04-13 15:46:26,993 INFO L226 Difference]: Without dead ends: 679 [2018-04-13 15:46:26,994 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=222, Invalid=5478, Unknown=0, NotChecked=0, Total=5700 [2018-04-13 15:46:26,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2018-04-13 15:46:26,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2018-04-13 15:46:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2018-04-13 15:46:26,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 680 transitions. [2018-04-13 15:46:26,996 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 680 transitions. Word has length 300 [2018-04-13 15:46:26,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:46:26,996 INFO L459 AbstractCegarLoop]: Abstraction has 679 states and 680 transitions. [2018-04-13 15:46:26,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-04-13 15:46:26,997 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 680 transitions. [2018-04-13 15:46:26,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-04-13 15:46:26,997 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:46:26,997 INFO L355 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 1, 1, 1, 1, 1, 1] [2018-04-13 15:46:26,997 INFO L408 AbstractCegarLoop]: === Iteration 75 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:46:26,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1377054582, now seen corresponding path program 74 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:46:26,999 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:46:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:28,228 INFO L134 CoverageAnalysis]: Checked inductivity of 11026 backedges. 0 proven. 11026 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:28,243 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:46:28,243 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2018-04-13 15:46:28,243 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:46:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:28,244 INFO L182 omatonBuilderFactory]: Interpolants [55040#(= main_~i~0 51), 55041#(= main_~i~0 52), 55042#(= main_~i~0 53), 55043#(= main_~i~0 54), 55044#(= main_~i~0 55), 55045#(= main_~i~0 56), 55046#(= main_~i~0 57), 55047#(= main_~i~0 58), 55048#(= main_~i~0 59), 55049#(= main_~i~0 60), 55050#(= main_~i~0 61), 55051#(= main_~i~0 62), 55052#(= main_~i~0 63), 55053#(= main_~i~0 64), 55054#(= main_~i~0 65), 55055#(= main_~i~0 66), 55056#(= main_~i~0 67), 55057#(= main_~i~0 68), 55058#(= main_~i~0 69), 55059#(= main_~i~0 70), 55060#(= main_~i~0 71), 55061#(= main_~i~0 72), 55062#(= main_~i~0 73), 55063#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 54985#true, 54986#false, 54989#(= main_~i~0 0), 54990#(= main_~i~0 1), 54991#(= main_~i~0 2), 54992#(= main_~i~0 3), 54993#(= main_~i~0 4), 54994#(= main_~i~0 5), 54995#(= main_~i~0 6), 54996#(= main_~i~0 7), 54997#(= main_~i~0 8), 54998#(= main_~i~0 9), 54999#(= main_~i~0 10), 55000#(= main_~i~0 11), 55001#(= main_~i~0 12), 55002#(= main_~i~0 13), 55003#(= main_~i~0 14), 55004#(= main_~i~0 15), 55005#(= main_~i~0 16), 55006#(= main_~i~0 17), 55007#(= main_~i~0 18), 55008#(= main_~i~0 19), 55009#(= main_~i~0 20), 55010#(= main_~i~0 21), 55011#(= main_~i~0 22), 55012#(= main_~i~0 23), 55013#(= main_~i~0 24), 55014#(= main_~i~0 25), 55015#(= main_~i~0 26), 55016#(= main_~i~0 27), 55017#(= main_~i~0 28), 55018#(= main_~i~0 29), 55019#(= main_~i~0 30), 55020#(= main_~i~0 31), 55021#(= main_~i~0 32), 55022#(= main_~i~0 33), 55023#(= main_~i~0 34), 55024#(= main_~i~0 35), 55025#(= main_~i~0 36), 55026#(= main_~i~0 37), 55027#(= main_~i~0 38), 55028#(= main_~i~0 39), 55029#(= main_~i~0 40), 55030#(= main_~i~0 41), 55031#(= main_~i~0 42), 55032#(= main_~i~0 43), 55033#(= main_~i~0 44), 55034#(= main_~i~0 45), 55035#(= main_~i~0 46), 55036#(= main_~i~0 47), 55037#(= main_~i~0 48), 55038#(= main_~i~0 49), 55039#(= main_~i~0 50)] [2018-04-13 15:46:28,244 INFO L134 CoverageAnalysis]: Checked inductivity of 11026 backedges. 0 proven. 11026 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:28,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-04-13 15:46:28,244 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-04-13 15:46:28,244 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=5627, Unknown=0, NotChecked=0, Total=5852 [2018-04-13 15:46:28,244 INFO L87 Difference]: Start difference. First operand 679 states and 680 transitions. Second operand 77 states. [2018-04-13 15:46:35,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:46:35,177 INFO L93 Difference]: Finished difference Result 688 states and 689 transitions. [2018-04-13 15:46:35,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-04-13 15:46:35,177 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 304 [2018-04-13 15:46:35,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:46:35,178 INFO L225 Difference]: With dead ends: 688 [2018-04-13 15:46:35,178 INFO L226 Difference]: Without dead ends: 688 [2018-04-13 15:46:35,178 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=225, Invalid=5627, Unknown=0, NotChecked=0, Total=5852 [2018-04-13 15:46:35,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2018-04-13 15:46:35,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2018-04-13 15:46:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2018-04-13 15:46:35,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 689 transitions. [2018-04-13 15:46:35,181 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 689 transitions. Word has length 304 [2018-04-13 15:46:35,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:46:35,181 INFO L459 AbstractCegarLoop]: Abstraction has 688 states and 689 transitions. [2018-04-13 15:46:35,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-04-13 15:46:35,181 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 689 transitions. [2018-04-13 15:46:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-04-13 15:46:35,182 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:46:35,182 INFO L355 BasicCegarLoop]: trace histogram [76, 76, 75, 75, 1, 1, 1, 1, 1, 1] [2018-04-13 15:46:35,182 INFO L408 AbstractCegarLoop]: === Iteration 76 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:46:35,182 INFO L82 PathProgramCache]: Analyzing trace with hash 993468291, now seen corresponding path program 75 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:46:35,184 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:46:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 11325 backedges. 0 proven. 11325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:36,451 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:46:36,451 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2018-04-13 15:46:36,451 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:46:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:36,451 INFO L182 omatonBuilderFactory]: Interpolants [56448#(= main_~i~0 4), 56449#(= main_~i~0 5), 56450#(= main_~i~0 6), 56451#(= main_~i~0 7), 56452#(= main_~i~0 8), 56453#(= main_~i~0 9), 56454#(= main_~i~0 10), 56455#(= main_~i~0 11), 56456#(= main_~i~0 12), 56457#(= main_~i~0 13), 56458#(= main_~i~0 14), 56459#(= main_~i~0 15), 56460#(= main_~i~0 16), 56461#(= main_~i~0 17), 56462#(= main_~i~0 18), 56463#(= main_~i~0 19), 56464#(= main_~i~0 20), 56465#(= main_~i~0 21), 56466#(= main_~i~0 22), 56467#(= main_~i~0 23), 56468#(= main_~i~0 24), 56469#(= main_~i~0 25), 56470#(= main_~i~0 26), 56471#(= main_~i~0 27), 56472#(= main_~i~0 28), 56473#(= main_~i~0 29), 56474#(= main_~i~0 30), 56475#(= main_~i~0 31), 56476#(= main_~i~0 32), 56477#(= main_~i~0 33), 56478#(= main_~i~0 34), 56479#(= main_~i~0 35), 56480#(= main_~i~0 36), 56481#(= main_~i~0 37), 56482#(= main_~i~0 38), 56483#(= main_~i~0 39), 56484#(= main_~i~0 40), 56485#(= main_~i~0 41), 56486#(= main_~i~0 42), 56487#(= main_~i~0 43), 56488#(= main_~i~0 44), 56489#(= main_~i~0 45), 56490#(= main_~i~0 46), 56491#(= main_~i~0 47), 56492#(= main_~i~0 48), 56493#(= main_~i~0 49), 56494#(= main_~i~0 50), 56495#(= main_~i~0 51), 56496#(= main_~i~0 52), 56497#(= main_~i~0 53), 56498#(= main_~i~0 54), 56499#(= main_~i~0 55), 56500#(= main_~i~0 56), 56501#(= main_~i~0 57), 56502#(= main_~i~0 58), 56503#(= main_~i~0 59), 56504#(= main_~i~0 60), 56505#(= main_~i~0 61), 56506#(= main_~i~0 62), 56507#(= main_~i~0 63), 56508#(= main_~i~0 64), 56509#(= main_~i~0 65), 56510#(= main_~i~0 66), 56511#(= main_~i~0 67), 56512#(= main_~i~0 68), 56513#(= main_~i~0 69), 56514#(= main_~i~0 70), 56515#(= main_~i~0 71), 56516#(= main_~i~0 72), 56517#(= main_~i~0 73), 56518#(= main_~i~0 74), 56519#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 56440#true, 56441#false, 56444#(= main_~i~0 0), 56445#(= main_~i~0 1), 56446#(= main_~i~0 2), 56447#(= main_~i~0 3)] [2018-04-13 15:46:36,452 INFO L134 CoverageAnalysis]: Checked inductivity of 11325 backedges. 0 proven. 11325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:36,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-04-13 15:46:36,452 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-04-13 15:46:36,452 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=5778, Unknown=0, NotChecked=0, Total=6006 [2018-04-13 15:46:36,452 INFO L87 Difference]: Start difference. First operand 688 states and 689 transitions. Second operand 78 states. [2018-04-13 15:46:43,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:46:43,678 INFO L93 Difference]: Finished difference Result 697 states and 698 transitions. [2018-04-13 15:46:43,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-04-13 15:46:43,678 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 308 [2018-04-13 15:46:43,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:46:43,679 INFO L225 Difference]: With dead ends: 697 [2018-04-13 15:46:43,679 INFO L226 Difference]: Without dead ends: 697 [2018-04-13 15:46:43,679 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=228, Invalid=5778, Unknown=0, NotChecked=0, Total=6006 [2018-04-13 15:46:43,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-04-13 15:46:43,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2018-04-13 15:46:43,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2018-04-13 15:46:43,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 698 transitions. [2018-04-13 15:46:43,682 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 698 transitions. Word has length 308 [2018-04-13 15:46:43,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:46:43,682 INFO L459 AbstractCegarLoop]: Abstraction has 697 states and 698 transitions. [2018-04-13 15:46:43,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-04-13 15:46:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 698 transitions. [2018-04-13 15:46:43,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2018-04-13 15:46:43,683 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:46:43,683 INFO L355 BasicCegarLoop]: trace histogram [77, 77, 76, 76, 1, 1, 1, 1, 1, 1] [2018-04-13 15:46:43,683 INFO L408 AbstractCegarLoop]: === Iteration 77 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:46:43,683 INFO L82 PathProgramCache]: Analyzing trace with hash -2082452996, now seen corresponding path program 76 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:46:43,685 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:46:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:44,981 INFO L134 CoverageAnalysis]: Checked inductivity of 11628 backedges. 0 proven. 11628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:44,996 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:46:44,997 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2018-04-13 15:46:44,997 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:46:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:44,997 INFO L182 omatonBuilderFactory]: Interpolants [57984#(= main_~i~0 66), 57985#(= main_~i~0 67), 57986#(= main_~i~0 68), 57987#(= main_~i~0 69), 57988#(= main_~i~0 70), 57989#(= main_~i~0 71), 57990#(= main_~i~0 72), 57991#(= main_~i~0 73), 57992#(= main_~i~0 74), 57993#(= main_~i~0 75), 57994#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 57914#true, 57915#false, 57918#(= main_~i~0 0), 57919#(= main_~i~0 1), 57920#(= main_~i~0 2), 57921#(= main_~i~0 3), 57922#(= main_~i~0 4), 57923#(= main_~i~0 5), 57924#(= main_~i~0 6), 57925#(= main_~i~0 7), 57926#(= main_~i~0 8), 57927#(= main_~i~0 9), 57928#(= main_~i~0 10), 57929#(= main_~i~0 11), 57930#(= main_~i~0 12), 57931#(= main_~i~0 13), 57932#(= main_~i~0 14), 57933#(= main_~i~0 15), 57934#(= main_~i~0 16), 57935#(= main_~i~0 17), 57936#(= main_~i~0 18), 57937#(= main_~i~0 19), 57938#(= main_~i~0 20), 57939#(= main_~i~0 21), 57940#(= main_~i~0 22), 57941#(= main_~i~0 23), 57942#(= main_~i~0 24), 57943#(= main_~i~0 25), 57944#(= main_~i~0 26), 57945#(= main_~i~0 27), 57946#(= main_~i~0 28), 57947#(= main_~i~0 29), 57948#(= main_~i~0 30), 57949#(= main_~i~0 31), 57950#(= main_~i~0 32), 57951#(= main_~i~0 33), 57952#(= main_~i~0 34), 57953#(= main_~i~0 35), 57954#(= main_~i~0 36), 57955#(= main_~i~0 37), 57956#(= main_~i~0 38), 57957#(= main_~i~0 39), 57958#(= main_~i~0 40), 57959#(= main_~i~0 41), 57960#(= main_~i~0 42), 57961#(= main_~i~0 43), 57962#(= main_~i~0 44), 57963#(= main_~i~0 45), 57964#(= main_~i~0 46), 57965#(= main_~i~0 47), 57966#(= main_~i~0 48), 57967#(= main_~i~0 49), 57968#(= main_~i~0 50), 57969#(= main_~i~0 51), 57970#(= main_~i~0 52), 57971#(= main_~i~0 53), 57972#(= main_~i~0 54), 57973#(= main_~i~0 55), 57974#(= main_~i~0 56), 57975#(= main_~i~0 57), 57976#(= main_~i~0 58), 57977#(= main_~i~0 59), 57978#(= main_~i~0 60), 57979#(= main_~i~0 61), 57980#(= main_~i~0 62), 57981#(= main_~i~0 63), 57982#(= main_~i~0 64), 57983#(= main_~i~0 65)] [2018-04-13 15:46:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 11628 backedges. 0 proven. 11628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:44,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-04-13 15:46:44,998 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-04-13 15:46:44,998 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=5931, Unknown=0, NotChecked=0, Total=6162 [2018-04-13 15:46:44,998 INFO L87 Difference]: Start difference. First operand 697 states and 698 transitions. Second operand 79 states. [2018-04-13 15:46:52,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:46:52,268 INFO L93 Difference]: Finished difference Result 706 states and 707 transitions. [2018-04-13 15:46:52,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-04-13 15:46:52,268 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 312 [2018-04-13 15:46:52,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:46:52,269 INFO L225 Difference]: With dead ends: 706 [2018-04-13 15:46:52,269 INFO L226 Difference]: Without dead ends: 706 [2018-04-13 15:46:52,269 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=231, Invalid=5931, Unknown=0, NotChecked=0, Total=6162 [2018-04-13 15:46:52,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2018-04-13 15:46:52,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2018-04-13 15:46:52,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2018-04-13 15:46:52,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 707 transitions. [2018-04-13 15:46:52,272 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 707 transitions. Word has length 312 [2018-04-13 15:46:52,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:46:52,272 INFO L459 AbstractCegarLoop]: Abstraction has 706 states and 707 transitions. [2018-04-13 15:46:52,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-04-13 15:46:52,272 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 707 transitions. [2018-04-13 15:46:52,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-04-13 15:46:52,273 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:46:52,273 INFO L355 BasicCegarLoop]: trace histogram [78, 78, 77, 77, 1, 1, 1, 1, 1, 1] [2018-04-13 15:46:52,273 INFO L408 AbstractCegarLoop]: === Iteration 78 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:46:52,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1500672011, now seen corresponding path program 77 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:46:52,275 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:46:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:46:53,596 INFO L134 CoverageAnalysis]: Checked inductivity of 11935 backedges. 0 proven. 11935 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:53,611 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:46:53,611 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-04-13 15:46:53,612 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:46:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:53,612 INFO L182 omatonBuilderFactory]: Interpolants [59407#true, 59408#false, 59411#(= main_~i~0 0), 59412#(= main_~i~0 1), 59413#(= main_~i~0 2), 59414#(= main_~i~0 3), 59415#(= main_~i~0 4), 59416#(= main_~i~0 5), 59417#(= main_~i~0 6), 59418#(= main_~i~0 7), 59419#(= main_~i~0 8), 59420#(= main_~i~0 9), 59421#(= main_~i~0 10), 59422#(= main_~i~0 11), 59423#(= main_~i~0 12), 59424#(= main_~i~0 13), 59425#(= main_~i~0 14), 59426#(= main_~i~0 15), 59427#(= main_~i~0 16), 59428#(= main_~i~0 17), 59429#(= main_~i~0 18), 59430#(= main_~i~0 19), 59431#(= main_~i~0 20), 59432#(= main_~i~0 21), 59433#(= main_~i~0 22), 59434#(= main_~i~0 23), 59435#(= main_~i~0 24), 59436#(= main_~i~0 25), 59437#(= main_~i~0 26), 59438#(= main_~i~0 27), 59439#(= main_~i~0 28), 59440#(= main_~i~0 29), 59441#(= main_~i~0 30), 59442#(= main_~i~0 31), 59443#(= main_~i~0 32), 59444#(= main_~i~0 33), 59445#(= main_~i~0 34), 59446#(= main_~i~0 35), 59447#(= main_~i~0 36), 59448#(= main_~i~0 37), 59449#(= main_~i~0 38), 59450#(= main_~i~0 39), 59451#(= main_~i~0 40), 59452#(= main_~i~0 41), 59453#(= main_~i~0 42), 59454#(= main_~i~0 43), 59455#(= main_~i~0 44), 59456#(= main_~i~0 45), 59457#(= main_~i~0 46), 59458#(= main_~i~0 47), 59459#(= main_~i~0 48), 59460#(= main_~i~0 49), 59461#(= main_~i~0 50), 59462#(= main_~i~0 51), 59463#(= main_~i~0 52), 59464#(= main_~i~0 53), 59465#(= main_~i~0 54), 59466#(= main_~i~0 55), 59467#(= main_~i~0 56), 59468#(= main_~i~0 57), 59469#(= main_~i~0 58), 59470#(= main_~i~0 59), 59471#(= main_~i~0 60), 59472#(= main_~i~0 61), 59473#(= main_~i~0 62), 59474#(= main_~i~0 63), 59475#(= main_~i~0 64), 59476#(= main_~i~0 65), 59477#(= main_~i~0 66), 59478#(= main_~i~0 67), 59479#(= main_~i~0 68), 59480#(= main_~i~0 69), 59481#(= main_~i~0 70), 59482#(= main_~i~0 71), 59483#(= main_~i~0 72), 59484#(= main_~i~0 73), 59485#(= main_~i~0 74), 59486#(= main_~i~0 75), 59487#(= main_~i~0 76), 59488#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:46:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 11935 backedges. 0 proven. 11935 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:46:53,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-04-13 15:46:53,612 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-04-13 15:46:53,613 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=6086, Unknown=0, NotChecked=0, Total=6320 [2018-04-13 15:46:53,613 INFO L87 Difference]: Start difference. First operand 706 states and 707 transitions. Second operand 80 states. [2018-04-13 15:47:01,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:47:01,132 INFO L93 Difference]: Finished difference Result 715 states and 716 transitions. [2018-04-13 15:47:01,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-04-13 15:47:01,132 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 316 [2018-04-13 15:47:01,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:47:01,134 INFO L225 Difference]: With dead ends: 715 [2018-04-13 15:47:01,134 INFO L226 Difference]: Without dead ends: 715 [2018-04-13 15:47:01,134 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=234, Invalid=6086, Unknown=0, NotChecked=0, Total=6320 [2018-04-13 15:47:01,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2018-04-13 15:47:01,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2018-04-13 15:47:01,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2018-04-13 15:47:01,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 716 transitions. [2018-04-13 15:47:01,137 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 716 transitions. Word has length 316 [2018-04-13 15:47:01,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:47:01,137 INFO L459 AbstractCegarLoop]: Abstraction has 715 states and 716 transitions. [2018-04-13 15:47:01,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-04-13 15:47:01,137 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 716 transitions. [2018-04-13 15:47:01,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-04-13 15:47:01,137 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:47:01,138 INFO L355 BasicCegarLoop]: trace histogram [79, 79, 78, 78, 1, 1, 1, 1, 1, 1] [2018-04-13 15:47:01,138 INFO L408 AbstractCegarLoop]: === Iteration 79 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:47:01,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2067451538, now seen corresponding path program 78 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:47:01,140 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:47:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:02,846 INFO L134 CoverageAnalysis]: Checked inductivity of 12246 backedges. 0 proven. 12246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:02,862 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:47:02,862 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2018-04-13 15:47:02,862 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:47:02,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:02,862 INFO L182 omatonBuilderFactory]: Interpolants [60928#(= main_~i~0 5), 60929#(= main_~i~0 6), 60930#(= main_~i~0 7), 60931#(= main_~i~0 8), 60932#(= main_~i~0 9), 60933#(= main_~i~0 10), 60934#(= main_~i~0 11), 60935#(= main_~i~0 12), 60936#(= main_~i~0 13), 60937#(= main_~i~0 14), 60938#(= main_~i~0 15), 60939#(= main_~i~0 16), 60940#(= main_~i~0 17), 60941#(= main_~i~0 18), 60942#(= main_~i~0 19), 60943#(= main_~i~0 20), 60944#(= main_~i~0 21), 60945#(= main_~i~0 22), 60946#(= main_~i~0 23), 60947#(= main_~i~0 24), 60948#(= main_~i~0 25), 60949#(= main_~i~0 26), 60950#(= main_~i~0 27), 60951#(= main_~i~0 28), 60952#(= main_~i~0 29), 60953#(= main_~i~0 30), 60954#(= main_~i~0 31), 60955#(= main_~i~0 32), 60956#(= main_~i~0 33), 60957#(= main_~i~0 34), 60958#(= main_~i~0 35), 60959#(= main_~i~0 36), 60960#(= main_~i~0 37), 60961#(= main_~i~0 38), 60962#(= main_~i~0 39), 60963#(= main_~i~0 40), 60964#(= main_~i~0 41), 60965#(= main_~i~0 42), 60966#(= main_~i~0 43), 60967#(= main_~i~0 44), 60968#(= main_~i~0 45), 60969#(= main_~i~0 46), 60970#(= main_~i~0 47), 60971#(= main_~i~0 48), 60972#(= main_~i~0 49), 60973#(= main_~i~0 50), 60974#(= main_~i~0 51), 60975#(= main_~i~0 52), 60976#(= main_~i~0 53), 60977#(= main_~i~0 54), 60978#(= main_~i~0 55), 60979#(= main_~i~0 56), 60980#(= main_~i~0 57), 60981#(= main_~i~0 58), 60982#(= main_~i~0 59), 60983#(= main_~i~0 60), 60984#(= main_~i~0 61), 60985#(= main_~i~0 62), 60986#(= main_~i~0 63), 60987#(= main_~i~0 64), 60988#(= main_~i~0 65), 60989#(= main_~i~0 66), 60990#(= main_~i~0 67), 60991#(= main_~i~0 68), 60992#(= main_~i~0 69), 60993#(= main_~i~0 70), 60994#(= main_~i~0 71), 60995#(= main_~i~0 72), 60996#(= main_~i~0 73), 60997#(= main_~i~0 74), 60998#(= main_~i~0 75), 60999#(= main_~i~0 76), 61000#(= main_~i~0 77), 61001#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 60919#true, 60920#false, 60923#(= main_~i~0 0), 60924#(= main_~i~0 1), 60925#(= main_~i~0 2), 60926#(= main_~i~0 3), 60927#(= main_~i~0 4)] [2018-04-13 15:47:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12246 backedges. 0 proven. 12246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:02,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-04-13 15:47:02,863 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-04-13 15:47:02,863 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=6243, Unknown=0, NotChecked=0, Total=6480 [2018-04-13 15:47:02,863 INFO L87 Difference]: Start difference. First operand 715 states and 716 transitions. Second operand 81 states. [2018-04-13 15:47:10,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:47:10,681 INFO L93 Difference]: Finished difference Result 724 states and 725 transitions. [2018-04-13 15:47:10,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-04-13 15:47:10,682 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 320 [2018-04-13 15:47:10,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:47:10,683 INFO L225 Difference]: With dead ends: 724 [2018-04-13 15:47:10,683 INFO L226 Difference]: Without dead ends: 724 [2018-04-13 15:47:10,683 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=237, Invalid=6243, Unknown=0, NotChecked=0, Total=6480 [2018-04-13 15:47:10,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2018-04-13 15:47:10,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 724. [2018-04-13 15:47:10,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-04-13 15:47:10,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 725 transitions. [2018-04-13 15:47:10,686 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 725 transitions. Word has length 320 [2018-04-13 15:47:10,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:47:10,686 INFO L459 AbstractCegarLoop]: Abstraction has 724 states and 725 transitions. [2018-04-13 15:47:10,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-04-13 15:47:10,686 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 725 transitions. [2018-04-13 15:47:10,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-04-13 15:47:10,687 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:47:10,687 INFO L355 BasicCegarLoop]: trace histogram [80, 80, 79, 79, 1, 1, 1, 1, 1, 1] [2018-04-13 15:47:10,687 INFO L408 AbstractCegarLoop]: === Iteration 80 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:47:10,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1391292007, now seen corresponding path program 79 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:47:10,692 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:47:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:12,080 INFO L134 CoverageAnalysis]: Checked inductivity of 12561 backedges. 0 proven. 12561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:12,095 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:47:12,095 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-04-13 15:47:12,095 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:47:12,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:12,095 INFO L182 omatonBuilderFactory]: Interpolants [62464#(= main_~i~0 10), 62465#(= main_~i~0 11), 62466#(= main_~i~0 12), 62467#(= main_~i~0 13), 62468#(= main_~i~0 14), 62469#(= main_~i~0 15), 62470#(= main_~i~0 16), 62471#(= main_~i~0 17), 62472#(= main_~i~0 18), 62473#(= main_~i~0 19), 62474#(= main_~i~0 20), 62475#(= main_~i~0 21), 62476#(= main_~i~0 22), 62477#(= main_~i~0 23), 62478#(= main_~i~0 24), 62479#(= main_~i~0 25), 62480#(= main_~i~0 26), 62481#(= main_~i~0 27), 62482#(= main_~i~0 28), 62483#(= main_~i~0 29), 62484#(= main_~i~0 30), 62485#(= main_~i~0 31), 62486#(= main_~i~0 32), 62487#(= main_~i~0 33), 62488#(= main_~i~0 34), 62489#(= main_~i~0 35), 62490#(= main_~i~0 36), 62491#(= main_~i~0 37), 62492#(= main_~i~0 38), 62493#(= main_~i~0 39), 62494#(= main_~i~0 40), 62495#(= main_~i~0 41), 62496#(= main_~i~0 42), 62497#(= main_~i~0 43), 62498#(= main_~i~0 44), 62499#(= main_~i~0 45), 62500#(= main_~i~0 46), 62501#(= main_~i~0 47), 62502#(= main_~i~0 48), 62503#(= main_~i~0 49), 62504#(= main_~i~0 50), 62505#(= main_~i~0 51), 62506#(= main_~i~0 52), 62507#(= main_~i~0 53), 62508#(= main_~i~0 54), 62509#(= main_~i~0 55), 62510#(= main_~i~0 56), 62511#(= main_~i~0 57), 62512#(= main_~i~0 58), 62513#(= main_~i~0 59), 62514#(= main_~i~0 60), 62515#(= main_~i~0 61), 62516#(= main_~i~0 62), 62517#(= main_~i~0 63), 62518#(= main_~i~0 64), 62519#(= main_~i~0 65), 62520#(= main_~i~0 66), 62521#(= main_~i~0 67), 62522#(= main_~i~0 68), 62523#(= main_~i~0 69), 62524#(= main_~i~0 70), 62525#(= main_~i~0 71), 62526#(= main_~i~0 72), 62527#(= main_~i~0 73), 62528#(= main_~i~0 74), 62529#(= main_~i~0 75), 62530#(= main_~i~0 76), 62531#(= main_~i~0 77), 62532#(= main_~i~0 78), 62533#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 62450#true, 62451#false, 62454#(= main_~i~0 0), 62455#(= main_~i~0 1), 62456#(= main_~i~0 2), 62457#(= main_~i~0 3), 62458#(= main_~i~0 4), 62459#(= main_~i~0 5), 62460#(= main_~i~0 6), 62461#(= main_~i~0 7), 62462#(= main_~i~0 8), 62463#(= main_~i~0 9)] [2018-04-13 15:47:12,096 INFO L134 CoverageAnalysis]: Checked inductivity of 12561 backedges. 0 proven. 12561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:12,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-04-13 15:47:12,096 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-04-13 15:47:12,096 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=6402, Unknown=0, NotChecked=0, Total=6642 [2018-04-13 15:47:12,096 INFO L87 Difference]: Start difference. First operand 724 states and 725 transitions. Second operand 82 states. [2018-04-13 15:47:19,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:47:19,942 INFO L93 Difference]: Finished difference Result 733 states and 734 transitions. [2018-04-13 15:47:19,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-04-13 15:47:19,942 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 324 [2018-04-13 15:47:19,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:47:19,943 INFO L225 Difference]: With dead ends: 733 [2018-04-13 15:47:19,943 INFO L226 Difference]: Without dead ends: 733 [2018-04-13 15:47:19,944 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=240, Invalid=6402, Unknown=0, NotChecked=0, Total=6642 [2018-04-13 15:47:19,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2018-04-13 15:47:19,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2018-04-13 15:47:19,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-04-13 15:47:19,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 734 transitions. [2018-04-13 15:47:19,947 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 734 transitions. Word has length 324 [2018-04-13 15:47:19,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:47:19,947 INFO L459 AbstractCegarLoop]: Abstraction has 733 states and 734 transitions. [2018-04-13 15:47:19,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-04-13 15:47:19,947 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 734 transitions. [2018-04-13 15:47:19,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-04-13 15:47:19,948 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:47:19,948 INFO L355 BasicCegarLoop]: trace histogram [81, 81, 80, 80, 1, 1, 1, 1, 1, 1] [2018-04-13 15:47:19,948 INFO L408 AbstractCegarLoop]: === Iteration 81 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:47:19,948 INFO L82 PathProgramCache]: Analyzing trace with hash 676103904, now seen corresponding path program 80 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:47:19,950 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:47:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:21,373 INFO L134 CoverageAnalysis]: Checked inductivity of 12880 backedges. 0 proven. 12880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:21,388 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:47:21,388 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2018-04-13 15:47:21,388 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:47:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:21,388 INFO L182 omatonBuilderFactory]: Interpolants [64000#true, 64001#false, 64004#(= main_~i~0 0), 64005#(= main_~i~0 1), 64006#(= main_~i~0 2), 64007#(= main_~i~0 3), 64008#(= main_~i~0 4), 64009#(= main_~i~0 5), 64010#(= main_~i~0 6), 64011#(= main_~i~0 7), 64012#(= main_~i~0 8), 64013#(= main_~i~0 9), 64014#(= main_~i~0 10), 64015#(= main_~i~0 11), 64016#(= main_~i~0 12), 64017#(= main_~i~0 13), 64018#(= main_~i~0 14), 64019#(= main_~i~0 15), 64020#(= main_~i~0 16), 64021#(= main_~i~0 17), 64022#(= main_~i~0 18), 64023#(= main_~i~0 19), 64024#(= main_~i~0 20), 64025#(= main_~i~0 21), 64026#(= main_~i~0 22), 64027#(= main_~i~0 23), 64028#(= main_~i~0 24), 64029#(= main_~i~0 25), 64030#(= main_~i~0 26), 64031#(= main_~i~0 27), 64032#(= main_~i~0 28), 64033#(= main_~i~0 29), 64034#(= main_~i~0 30), 64035#(= main_~i~0 31), 64036#(= main_~i~0 32), 64037#(= main_~i~0 33), 64038#(= main_~i~0 34), 64039#(= main_~i~0 35), 64040#(= main_~i~0 36), 64041#(= main_~i~0 37), 64042#(= main_~i~0 38), 64043#(= main_~i~0 39), 64044#(= main_~i~0 40), 64045#(= main_~i~0 41), 64046#(= main_~i~0 42), 64047#(= main_~i~0 43), 64048#(= main_~i~0 44), 64049#(= main_~i~0 45), 64050#(= main_~i~0 46), 64051#(= main_~i~0 47), 64052#(= main_~i~0 48), 64053#(= main_~i~0 49), 64054#(= main_~i~0 50), 64055#(= main_~i~0 51), 64056#(= main_~i~0 52), 64057#(= main_~i~0 53), 64058#(= main_~i~0 54), 64059#(= main_~i~0 55), 64060#(= main_~i~0 56), 64061#(= main_~i~0 57), 64062#(= main_~i~0 58), 64063#(= main_~i~0 59), 64064#(= main_~i~0 60), 64065#(= main_~i~0 61), 64066#(= main_~i~0 62), 64067#(= main_~i~0 63), 64068#(= main_~i~0 64), 64069#(= main_~i~0 65), 64070#(= main_~i~0 66), 64071#(= main_~i~0 67), 64072#(= main_~i~0 68), 64073#(= main_~i~0 69), 64074#(= main_~i~0 70), 64075#(= main_~i~0 71), 64076#(= main_~i~0 72), 64077#(= main_~i~0 73), 64078#(= main_~i~0 74), 64079#(= main_~i~0 75), 64080#(= main_~i~0 76), 64081#(= main_~i~0 77), 64082#(= main_~i~0 78), 64083#(= main_~i~0 79), 64084#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:47:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 12880 backedges. 0 proven. 12880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:21,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-04-13 15:47:21,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-04-13 15:47:21,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=6563, Unknown=0, NotChecked=0, Total=6806 [2018-04-13 15:47:21,389 INFO L87 Difference]: Start difference. First operand 733 states and 734 transitions. Second operand 83 states. [2018-04-13 15:47:29,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:47:29,484 INFO L93 Difference]: Finished difference Result 742 states and 743 transitions. [2018-04-13 15:47:29,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-04-13 15:47:29,515 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 328 [2018-04-13 15:47:29,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:47:29,516 INFO L225 Difference]: With dead ends: 742 [2018-04-13 15:47:29,516 INFO L226 Difference]: Without dead ends: 742 [2018-04-13 15:47:29,516 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=243, Invalid=6563, Unknown=0, NotChecked=0, Total=6806 [2018-04-13 15:47:29,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2018-04-13 15:47:29,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2018-04-13 15:47:29,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-04-13 15:47:29,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 743 transitions. [2018-04-13 15:47:29,519 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 743 transitions. Word has length 328 [2018-04-13 15:47:29,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:47:29,519 INFO L459 AbstractCegarLoop]: Abstraction has 742 states and 743 transitions. [2018-04-13 15:47:29,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-04-13 15:47:29,520 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 743 transitions. [2018-04-13 15:47:29,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-04-13 15:47:29,520 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:47:29,520 INFO L355 BasicCegarLoop]: trace histogram [82, 82, 81, 81, 1, 1, 1, 1, 1, 1] [2018-04-13 15:47:29,520 INFO L408 AbstractCegarLoop]: === Iteration 82 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:47:29,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1895253287, now seen corresponding path program 81 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:47:29,523 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:47:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 13203 backedges. 0 proven. 13203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:30,992 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:47:30,992 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-04-13 15:47:30,992 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:47:30,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:30,993 INFO L182 omatonBuilderFactory]: Interpolants [65569#true, 65570#false, 65573#(= main_~i~0 0), 65575#(= main_~i~0 2), 65574#(= main_~i~0 1), 65577#(= main_~i~0 4), 65576#(= main_~i~0 3), 65579#(= main_~i~0 6), 65578#(= main_~i~0 5), 65581#(= main_~i~0 8), 65580#(= main_~i~0 7), 65583#(= main_~i~0 10), 65582#(= main_~i~0 9), 65585#(= main_~i~0 12), 65584#(= main_~i~0 11), 65587#(= main_~i~0 14), 65586#(= main_~i~0 13), 65589#(= main_~i~0 16), 65588#(= main_~i~0 15), 65591#(= main_~i~0 18), 65590#(= main_~i~0 17), 65593#(= main_~i~0 20), 65592#(= main_~i~0 19), 65595#(= main_~i~0 22), 65594#(= main_~i~0 21), 65597#(= main_~i~0 24), 65596#(= main_~i~0 23), 65599#(= main_~i~0 26), 65598#(= main_~i~0 25), 65601#(= main_~i~0 28), 65600#(= main_~i~0 27), 65603#(= main_~i~0 30), 65602#(= main_~i~0 29), 65605#(= main_~i~0 32), 65604#(= main_~i~0 31), 65607#(= main_~i~0 34), 65606#(= main_~i~0 33), 65609#(= main_~i~0 36), 65608#(= main_~i~0 35), 65611#(= main_~i~0 38), 65610#(= main_~i~0 37), 65613#(= main_~i~0 40), 65612#(= main_~i~0 39), 65615#(= main_~i~0 42), 65614#(= main_~i~0 41), 65617#(= main_~i~0 44), 65616#(= main_~i~0 43), 65619#(= main_~i~0 46), 65618#(= main_~i~0 45), 65621#(= main_~i~0 48), 65620#(= main_~i~0 47), 65623#(= main_~i~0 50), 65622#(= main_~i~0 49), 65625#(= main_~i~0 52), 65624#(= main_~i~0 51), 65627#(= main_~i~0 54), 65626#(= main_~i~0 53), 65629#(= main_~i~0 56), 65628#(= main_~i~0 55), 65631#(= main_~i~0 58), 65630#(= main_~i~0 57), 65633#(= main_~i~0 60), 65632#(= main_~i~0 59), 65635#(= main_~i~0 62), 65634#(= main_~i~0 61), 65637#(= main_~i~0 64), 65636#(= main_~i~0 63), 65639#(= main_~i~0 66), 65638#(= main_~i~0 65), 65641#(= main_~i~0 68), 65640#(= main_~i~0 67), 65643#(= main_~i~0 70), 65642#(= main_~i~0 69), 65645#(= main_~i~0 72), 65644#(= main_~i~0 71), 65647#(= main_~i~0 74), 65646#(= main_~i~0 73), 65649#(= main_~i~0 76), 65648#(= main_~i~0 75), 65651#(= main_~i~0 78), 65650#(= main_~i~0 77), 65653#(= main_~i~0 80), 65652#(= main_~i~0 79), 65654#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:47:30,993 INFO L134 CoverageAnalysis]: Checked inductivity of 13203 backedges. 0 proven. 13203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:30,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-04-13 15:47:30,993 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-04-13 15:47:30,993 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=6726, Unknown=0, NotChecked=0, Total=6972 [2018-04-13 15:47:30,994 INFO L87 Difference]: Start difference. First operand 742 states and 743 transitions. Second operand 84 states. [2018-04-13 15:47:39,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:47:39,373 INFO L93 Difference]: Finished difference Result 751 states and 752 transitions. [2018-04-13 15:47:39,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-04-13 15:47:39,373 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 332 [2018-04-13 15:47:39,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:47:39,374 INFO L225 Difference]: With dead ends: 751 [2018-04-13 15:47:39,375 INFO L226 Difference]: Without dead ends: 751 [2018-04-13 15:47:39,375 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=246, Invalid=6726, Unknown=0, NotChecked=0, Total=6972 [2018-04-13 15:47:39,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2018-04-13 15:47:39,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2018-04-13 15:47:39,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2018-04-13 15:47:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 752 transitions. [2018-04-13 15:47:39,378 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 752 transitions. Word has length 332 [2018-04-13 15:47:39,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:47:39,378 INFO L459 AbstractCegarLoop]: Abstraction has 751 states and 752 transitions. [2018-04-13 15:47:39,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-04-13 15:47:39,378 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 752 transitions. [2018-04-13 15:47:39,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-04-13 15:47:39,379 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:47:39,379 INFO L355 BasicCegarLoop]: trace histogram [83, 83, 82, 82, 1, 1, 1, 1, 1, 1] [2018-04-13 15:47:39,379 INFO L408 AbstractCegarLoop]: === Iteration 83 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:47:39,379 INFO L82 PathProgramCache]: Analyzing trace with hash 338184786, now seen corresponding path program 82 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:47:39,381 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:47:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:40,912 INFO L134 CoverageAnalysis]: Checked inductivity of 13530 backedges. 0 proven. 13530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:40,927 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:47:40,927 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2018-04-13 15:47:40,928 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:47:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:40,928 INFO L182 omatonBuilderFactory]: Interpolants [67201#(= main_~i~0 40), 67200#(= main_~i~0 39), 67203#(= main_~i~0 42), 67202#(= main_~i~0 41), 67205#(= main_~i~0 44), 67204#(= main_~i~0 43), 67207#(= main_~i~0 46), 67206#(= main_~i~0 45), 67209#(= main_~i~0 48), 67208#(= main_~i~0 47), 67211#(= main_~i~0 50), 67210#(= main_~i~0 49), 67213#(= main_~i~0 52), 67212#(= main_~i~0 51), 67215#(= main_~i~0 54), 67214#(= main_~i~0 53), 67217#(= main_~i~0 56), 67216#(= main_~i~0 55), 67219#(= main_~i~0 58), 67218#(= main_~i~0 57), 67221#(= main_~i~0 60), 67220#(= main_~i~0 59), 67223#(= main_~i~0 62), 67222#(= main_~i~0 61), 67225#(= main_~i~0 64), 67224#(= main_~i~0 63), 67227#(= main_~i~0 66), 67226#(= main_~i~0 65), 67229#(= main_~i~0 68), 67228#(= main_~i~0 67), 67231#(= main_~i~0 70), 67230#(= main_~i~0 69), 67233#(= main_~i~0 72), 67232#(= main_~i~0 71), 67235#(= main_~i~0 74), 67234#(= main_~i~0 73), 67237#(= main_~i~0 76), 67236#(= main_~i~0 75), 67239#(= main_~i~0 78), 67238#(= main_~i~0 77), 67241#(= main_~i~0 80), 67240#(= main_~i~0 79), 67243#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 67242#(= main_~i~0 81), 67157#true, 67158#false, 67161#(= main_~i~0 0), 67163#(= main_~i~0 2), 67162#(= main_~i~0 1), 67165#(= main_~i~0 4), 67164#(= main_~i~0 3), 67167#(= main_~i~0 6), 67166#(= main_~i~0 5), 67169#(= main_~i~0 8), 67168#(= main_~i~0 7), 67171#(= main_~i~0 10), 67170#(= main_~i~0 9), 67173#(= main_~i~0 12), 67172#(= main_~i~0 11), 67175#(= main_~i~0 14), 67174#(= main_~i~0 13), 67177#(= main_~i~0 16), 67176#(= main_~i~0 15), 67179#(= main_~i~0 18), 67178#(= main_~i~0 17), 67181#(= main_~i~0 20), 67180#(= main_~i~0 19), 67183#(= main_~i~0 22), 67182#(= main_~i~0 21), 67185#(= main_~i~0 24), 67184#(= main_~i~0 23), 67187#(= main_~i~0 26), 67186#(= main_~i~0 25), 67189#(= main_~i~0 28), 67188#(= main_~i~0 27), 67191#(= main_~i~0 30), 67190#(= main_~i~0 29), 67193#(= main_~i~0 32), 67192#(= main_~i~0 31), 67195#(= main_~i~0 34), 67194#(= main_~i~0 33), 67197#(= main_~i~0 36), 67196#(= main_~i~0 35), 67199#(= main_~i~0 38), 67198#(= main_~i~0 37)] [2018-04-13 15:47:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 13530 backedges. 0 proven. 13530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:40,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-04-13 15:47:40,929 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-04-13 15:47:40,929 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=6891, Unknown=0, NotChecked=0, Total=7140 [2018-04-13 15:47:40,929 INFO L87 Difference]: Start difference. First operand 751 states and 752 transitions. Second operand 85 states. [2018-04-13 15:47:49,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:47:49,508 INFO L93 Difference]: Finished difference Result 760 states and 761 transitions. [2018-04-13 15:47:49,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-04-13 15:47:49,508 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 336 [2018-04-13 15:47:49,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:47:49,509 INFO L225 Difference]: With dead ends: 760 [2018-04-13 15:47:49,509 INFO L226 Difference]: Without dead ends: 760 [2018-04-13 15:47:49,509 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=249, Invalid=6891, Unknown=0, NotChecked=0, Total=7140 [2018-04-13 15:47:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2018-04-13 15:47:49,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2018-04-13 15:47:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 760 states. [2018-04-13 15:47:49,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 761 transitions. [2018-04-13 15:47:49,512 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 761 transitions. Word has length 336 [2018-04-13 15:47:49,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:47:49,512 INFO L459 AbstractCegarLoop]: Abstraction has 760 states and 761 transitions. [2018-04-13 15:47:49,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-04-13 15:47:49,512 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 761 transitions. [2018-04-13 15:47:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-04-13 15:47:49,513 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:47:49,513 INFO L355 BasicCegarLoop]: trace histogram [84, 84, 83, 83, 1, 1, 1, 1, 1, 1] [2018-04-13 15:47:49,513 INFO L408 AbstractCegarLoop]: === Iteration 84 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:47:49,513 INFO L82 PathProgramCache]: Analyzing trace with hash -678333109, now seen corresponding path program 83 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:47:49,516 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:47:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:47:51,019 INFO L134 CoverageAnalysis]: Checked inductivity of 13861 backedges. 0 proven. 13861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:51,034 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:47:51,034 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2018-04-13 15:47:51,034 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:47:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:51,035 INFO L182 omatonBuilderFactory]: Interpolants [68765#false, 68764#true, 68769#(= main_~i~0 1), 68768#(= main_~i~0 0), 68771#(= main_~i~0 3), 68770#(= main_~i~0 2), 68773#(= main_~i~0 5), 68772#(= main_~i~0 4), 68775#(= main_~i~0 7), 68774#(= main_~i~0 6), 68777#(= main_~i~0 9), 68776#(= main_~i~0 8), 68779#(= main_~i~0 11), 68778#(= main_~i~0 10), 68781#(= main_~i~0 13), 68780#(= main_~i~0 12), 68783#(= main_~i~0 15), 68782#(= main_~i~0 14), 68785#(= main_~i~0 17), 68784#(= main_~i~0 16), 68787#(= main_~i~0 19), 68786#(= main_~i~0 18), 68789#(= main_~i~0 21), 68788#(= main_~i~0 20), 68791#(= main_~i~0 23), 68790#(= main_~i~0 22), 68793#(= main_~i~0 25), 68792#(= main_~i~0 24), 68795#(= main_~i~0 27), 68794#(= main_~i~0 26), 68797#(= main_~i~0 29), 68796#(= main_~i~0 28), 68799#(= main_~i~0 31), 68798#(= main_~i~0 30), 68801#(= main_~i~0 33), 68800#(= main_~i~0 32), 68803#(= main_~i~0 35), 68802#(= main_~i~0 34), 68805#(= main_~i~0 37), 68804#(= main_~i~0 36), 68807#(= main_~i~0 39), 68806#(= main_~i~0 38), 68809#(= main_~i~0 41), 68808#(= main_~i~0 40), 68811#(= main_~i~0 43), 68810#(= main_~i~0 42), 68813#(= main_~i~0 45), 68812#(= main_~i~0 44), 68815#(= main_~i~0 47), 68814#(= main_~i~0 46), 68817#(= main_~i~0 49), 68816#(= main_~i~0 48), 68819#(= main_~i~0 51), 68818#(= main_~i~0 50), 68821#(= main_~i~0 53), 68820#(= main_~i~0 52), 68823#(= main_~i~0 55), 68822#(= main_~i~0 54), 68825#(= main_~i~0 57), 68824#(= main_~i~0 56), 68827#(= main_~i~0 59), 68826#(= main_~i~0 58), 68829#(= main_~i~0 61), 68828#(= main_~i~0 60), 68831#(= main_~i~0 63), 68830#(= main_~i~0 62), 68833#(= main_~i~0 65), 68832#(= main_~i~0 64), 68835#(= main_~i~0 67), 68834#(= main_~i~0 66), 68837#(= main_~i~0 69), 68836#(= main_~i~0 68), 68839#(= main_~i~0 71), 68838#(= main_~i~0 70), 68841#(= main_~i~0 73), 68840#(= main_~i~0 72), 68843#(= main_~i~0 75), 68842#(= main_~i~0 74), 68845#(= main_~i~0 77), 68844#(= main_~i~0 76), 68847#(= main_~i~0 79), 68846#(= main_~i~0 78), 68849#(= main_~i~0 81), 68848#(= main_~i~0 80), 68851#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 68850#(= main_~i~0 82)] [2018-04-13 15:47:51,035 INFO L134 CoverageAnalysis]: Checked inductivity of 13861 backedges. 0 proven. 13861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:47:51,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 86 states [2018-04-13 15:47:51,035 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2018-04-13 15:47:51,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=7058, Unknown=0, NotChecked=0, Total=7310 [2018-04-13 15:47:51,036 INFO L87 Difference]: Start difference. First operand 760 states and 761 transitions. Second operand 86 states. [2018-04-13 15:47:59,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:47:59,776 INFO L93 Difference]: Finished difference Result 769 states and 770 transitions. [2018-04-13 15:47:59,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-04-13 15:47:59,776 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 340 [2018-04-13 15:47:59,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:47:59,777 INFO L225 Difference]: With dead ends: 769 [2018-04-13 15:47:59,777 INFO L226 Difference]: Without dead ends: 769 [2018-04-13 15:47:59,777 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=252, Invalid=7058, Unknown=0, NotChecked=0, Total=7310 [2018-04-13 15:47:59,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2018-04-13 15:47:59,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 769. [2018-04-13 15:47:59,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2018-04-13 15:47:59,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 770 transitions. [2018-04-13 15:47:59,780 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 770 transitions. Word has length 340 [2018-04-13 15:47:59,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:47:59,781 INFO L459 AbstractCegarLoop]: Abstraction has 769 states and 770 transitions. [2018-04-13 15:47:59,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 86 states. [2018-04-13 15:47:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 770 transitions. [2018-04-13 15:47:59,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-04-13 15:47:59,781 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:47:59,781 INFO L355 BasicCegarLoop]: trace histogram [85, 85, 84, 84, 1, 1, 1, 1, 1, 1] [2018-04-13 15:47:59,781 INFO L408 AbstractCegarLoop]: === Iteration 85 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:47:59,782 INFO L82 PathProgramCache]: Analyzing trace with hash 470449092, now seen corresponding path program 84 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:47:59,791 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:47:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:01,369 INFO L134 CoverageAnalysis]: Checked inductivity of 14196 backedges. 0 proven. 14196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:01,385 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:48:01,385 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [86] total 86 [2018-04-13 15:48:01,385 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:48:01,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:01,386 INFO L182 omatonBuilderFactory]: Interpolants [70401#(= main_~i~0 7), 70400#(= main_~i~0 6), 70403#(= main_~i~0 9), 70402#(= main_~i~0 8), 70405#(= main_~i~0 11), 70404#(= main_~i~0 10), 70407#(= main_~i~0 13), 70406#(= main_~i~0 12), 70409#(= main_~i~0 15), 70408#(= main_~i~0 14), 70411#(= main_~i~0 17), 70410#(= main_~i~0 16), 70413#(= main_~i~0 19), 70412#(= main_~i~0 18), 70415#(= main_~i~0 21), 70414#(= main_~i~0 20), 70417#(= main_~i~0 23), 70416#(= main_~i~0 22), 70419#(= main_~i~0 25), 70418#(= main_~i~0 24), 70421#(= main_~i~0 27), 70420#(= main_~i~0 26), 70423#(= main_~i~0 29), 70422#(= main_~i~0 28), 70425#(= main_~i~0 31), 70424#(= main_~i~0 30), 70427#(= main_~i~0 33), 70426#(= main_~i~0 32), 70429#(= main_~i~0 35), 70428#(= main_~i~0 34), 70431#(= main_~i~0 37), 70430#(= main_~i~0 36), 70433#(= main_~i~0 39), 70432#(= main_~i~0 38), 70435#(= main_~i~0 41), 70434#(= main_~i~0 40), 70437#(= main_~i~0 43), 70436#(= main_~i~0 42), 70439#(= main_~i~0 45), 70438#(= main_~i~0 44), 70441#(= main_~i~0 47), 70440#(= main_~i~0 46), 70443#(= main_~i~0 49), 70442#(= main_~i~0 48), 70445#(= main_~i~0 51), 70444#(= main_~i~0 50), 70447#(= main_~i~0 53), 70446#(= main_~i~0 52), 70449#(= main_~i~0 55), 70448#(= main_~i~0 54), 70451#(= main_~i~0 57), 70450#(= main_~i~0 56), 70453#(= main_~i~0 59), 70452#(= main_~i~0 58), 70455#(= main_~i~0 61), 70454#(= main_~i~0 60), 70457#(= main_~i~0 63), 70456#(= main_~i~0 62), 70459#(= main_~i~0 65), 70458#(= main_~i~0 64), 70461#(= main_~i~0 67), 70460#(= main_~i~0 66), 70463#(= main_~i~0 69), 70462#(= main_~i~0 68), 70465#(= main_~i~0 71), 70464#(= main_~i~0 70), 70467#(= main_~i~0 73), 70466#(= main_~i~0 72), 70469#(= main_~i~0 75), 70468#(= main_~i~0 74), 70471#(= main_~i~0 77), 70470#(= main_~i~0 76), 70473#(= main_~i~0 79), 70472#(= main_~i~0 78), 70475#(= main_~i~0 81), 70474#(= main_~i~0 80), 70477#(= main_~i~0 83), 70476#(= main_~i~0 82), 70478#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 70391#false, 70390#true, 70395#(= main_~i~0 1), 70394#(= main_~i~0 0), 70397#(= main_~i~0 3), 70396#(= main_~i~0 2), 70399#(= main_~i~0 5), 70398#(= main_~i~0 4)] [2018-04-13 15:48:01,386 INFO L134 CoverageAnalysis]: Checked inductivity of 14196 backedges. 0 proven. 14196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:01,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-04-13 15:48:01,386 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-04-13 15:48:01,386 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=7227, Unknown=0, NotChecked=0, Total=7482 [2018-04-13 15:48:01,387 INFO L87 Difference]: Start difference. First operand 769 states and 770 transitions. Second operand 87 states. [2018-04-13 15:48:10,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:48:10,537 INFO L93 Difference]: Finished difference Result 778 states and 779 transitions. [2018-04-13 15:48:10,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-04-13 15:48:10,537 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 344 [2018-04-13 15:48:10,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:48:10,538 INFO L225 Difference]: With dead ends: 778 [2018-04-13 15:48:10,538 INFO L226 Difference]: Without dead ends: 778 [2018-04-13 15:48:10,538 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=255, Invalid=7227, Unknown=0, NotChecked=0, Total=7482 [2018-04-13 15:48:10,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2018-04-13 15:48:10,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 778. [2018-04-13 15:48:10,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2018-04-13 15:48:10,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 779 transitions. [2018-04-13 15:48:10,541 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 779 transitions. Word has length 344 [2018-04-13 15:48:10,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:48:10,542 INFO L459 AbstractCegarLoop]: Abstraction has 778 states and 779 transitions. [2018-04-13 15:48:10,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-04-13 15:48:10,542 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 779 transitions. [2018-04-13 15:48:10,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-04-13 15:48:10,543 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:48:10,543 INFO L355 BasicCegarLoop]: trace histogram [86, 86, 85, 85, 1, 1, 1, 1, 1, 1] [2018-04-13 15:48:10,543 INFO L408 AbstractCegarLoop]: === Iteration 86 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:48:10,543 INFO L82 PathProgramCache]: Analyzing trace with hash -684089923, now seen corresponding path program 85 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:48:10,546 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:48:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 14535 backedges. 0 proven. 14535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:12,136 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:48:12,136 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2018-04-13 15:48:12,137 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:48:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:12,137 INFO L182 omatonBuilderFactory]: Interpolants [72065#(= main_~i~0 26), 72064#(= main_~i~0 25), 72067#(= main_~i~0 28), 72066#(= main_~i~0 27), 72069#(= main_~i~0 30), 72068#(= main_~i~0 29), 72071#(= main_~i~0 32), 72070#(= main_~i~0 31), 72073#(= main_~i~0 34), 72072#(= main_~i~0 33), 72075#(= main_~i~0 36), 72074#(= main_~i~0 35), 72077#(= main_~i~0 38), 72076#(= main_~i~0 37), 72079#(= main_~i~0 40), 72078#(= main_~i~0 39), 72081#(= main_~i~0 42), 72080#(= main_~i~0 41), 72083#(= main_~i~0 44), 72082#(= main_~i~0 43), 72085#(= main_~i~0 46), 72084#(= main_~i~0 45), 72087#(= main_~i~0 48), 72086#(= main_~i~0 47), 72089#(= main_~i~0 50), 72088#(= main_~i~0 49), 72091#(= main_~i~0 52), 72090#(= main_~i~0 51), 72093#(= main_~i~0 54), 72092#(= main_~i~0 53), 72095#(= main_~i~0 56), 72094#(= main_~i~0 55), 72097#(= main_~i~0 58), 72096#(= main_~i~0 57), 72099#(= main_~i~0 60), 72098#(= main_~i~0 59), 72101#(= main_~i~0 62), 72100#(= main_~i~0 61), 72103#(= main_~i~0 64), 72102#(= main_~i~0 63), 72105#(= main_~i~0 66), 72104#(= main_~i~0 65), 72107#(= main_~i~0 68), 72106#(= main_~i~0 67), 72109#(= main_~i~0 70), 72108#(= main_~i~0 69), 72111#(= main_~i~0 72), 72110#(= main_~i~0 71), 72113#(= main_~i~0 74), 72112#(= main_~i~0 73), 72115#(= main_~i~0 76), 72114#(= main_~i~0 75), 72117#(= main_~i~0 78), 72116#(= main_~i~0 77), 72119#(= main_~i~0 80), 72118#(= main_~i~0 79), 72121#(= main_~i~0 82), 72120#(= main_~i~0 81), 72123#(= main_~i~0 84), 72122#(= main_~i~0 83), 72124#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 72035#true, 72036#false, 72039#(= main_~i~0 0), 72041#(= main_~i~0 2), 72040#(= main_~i~0 1), 72043#(= main_~i~0 4), 72042#(= main_~i~0 3), 72045#(= main_~i~0 6), 72044#(= main_~i~0 5), 72047#(= main_~i~0 8), 72046#(= main_~i~0 7), 72049#(= main_~i~0 10), 72048#(= main_~i~0 9), 72051#(= main_~i~0 12), 72050#(= main_~i~0 11), 72053#(= main_~i~0 14), 72052#(= main_~i~0 13), 72055#(= main_~i~0 16), 72054#(= main_~i~0 15), 72057#(= main_~i~0 18), 72056#(= main_~i~0 17), 72059#(= main_~i~0 20), 72058#(= main_~i~0 19), 72061#(= main_~i~0 22), 72060#(= main_~i~0 21), 72063#(= main_~i~0 24), 72062#(= main_~i~0 23)] [2018-04-13 15:48:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 14535 backedges. 0 proven. 14535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:12,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-04-13 15:48:12,138 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-04-13 15:48:12,138 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=7398, Unknown=0, NotChecked=0, Total=7656 [2018-04-13 15:48:12,138 INFO L87 Difference]: Start difference. First operand 778 states and 779 transitions. Second operand 88 states. [2018-04-13 15:48:21,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:48:21,234 INFO L93 Difference]: Finished difference Result 787 states and 788 transitions. [2018-04-13 15:48:21,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-04-13 15:48:21,234 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 348 [2018-04-13 15:48:21,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:48:21,235 INFO L225 Difference]: With dead ends: 787 [2018-04-13 15:48:21,235 INFO L226 Difference]: Without dead ends: 787 [2018-04-13 15:48:21,235 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=258, Invalid=7398, Unknown=0, NotChecked=0, Total=7656 [2018-04-13 15:48:21,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2018-04-13 15:48:21,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2018-04-13 15:48:21,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2018-04-13 15:48:21,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 788 transitions. [2018-04-13 15:48:21,238 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 788 transitions. Word has length 348 [2018-04-13 15:48:21,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:48:21,238 INFO L459 AbstractCegarLoop]: Abstraction has 787 states and 788 transitions. [2018-04-13 15:48:21,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-04-13 15:48:21,238 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 788 transitions. [2018-04-13 15:48:21,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-04-13 15:48:21,239 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:48:21,240 INFO L355 BasicCegarLoop]: trace histogram [87, 87, 86, 86, 1, 1, 1, 1, 1, 1] [2018-04-13 15:48:21,240 INFO L408 AbstractCegarLoop]: === Iteration 87 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:48:21,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1101339446, now seen corresponding path program 86 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:48:21,242 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:48:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:22,868 INFO L134 CoverageAnalysis]: Checked inductivity of 14878 backedges. 0 proven. 14878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:22,882 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:48:22,882 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [88] total 88 [2018-04-13 15:48:22,882 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:48:22,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:22,883 INFO L182 omatonBuilderFactory]: Interpolants [73729#(= main_~i~0 26), 73728#(= main_~i~0 25), 73731#(= main_~i~0 28), 73730#(= main_~i~0 27), 73733#(= main_~i~0 30), 73732#(= main_~i~0 29), 73735#(= main_~i~0 32), 73734#(= main_~i~0 31), 73737#(= main_~i~0 34), 73736#(= main_~i~0 33), 73739#(= main_~i~0 36), 73738#(= main_~i~0 35), 73741#(= main_~i~0 38), 73740#(= main_~i~0 37), 73743#(= main_~i~0 40), 73742#(= main_~i~0 39), 73745#(= main_~i~0 42), 73744#(= main_~i~0 41), 73747#(= main_~i~0 44), 73746#(= main_~i~0 43), 73749#(= main_~i~0 46), 73748#(= main_~i~0 45), 73751#(= main_~i~0 48), 73750#(= main_~i~0 47), 73753#(= main_~i~0 50), 73752#(= main_~i~0 49), 73755#(= main_~i~0 52), 73754#(= main_~i~0 51), 73757#(= main_~i~0 54), 73756#(= main_~i~0 53), 73759#(= main_~i~0 56), 73758#(= main_~i~0 55), 73761#(= main_~i~0 58), 73760#(= main_~i~0 57), 73763#(= main_~i~0 60), 73762#(= main_~i~0 59), 73765#(= main_~i~0 62), 73764#(= main_~i~0 61), 73767#(= main_~i~0 64), 73766#(= main_~i~0 63), 73769#(= main_~i~0 66), 73768#(= main_~i~0 65), 73771#(= main_~i~0 68), 73770#(= main_~i~0 67), 73773#(= main_~i~0 70), 73772#(= main_~i~0 69), 73775#(= main_~i~0 72), 73774#(= main_~i~0 71), 73777#(= main_~i~0 74), 73776#(= main_~i~0 73), 73779#(= main_~i~0 76), 73778#(= main_~i~0 75), 73781#(= main_~i~0 78), 73780#(= main_~i~0 77), 73783#(= main_~i~0 80), 73782#(= main_~i~0 79), 73785#(= main_~i~0 82), 73784#(= main_~i~0 81), 73787#(= main_~i~0 84), 73786#(= main_~i~0 83), 73789#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 73788#(= main_~i~0 85), 73699#true, 73700#false, 73703#(= main_~i~0 0), 73705#(= main_~i~0 2), 73704#(= main_~i~0 1), 73707#(= main_~i~0 4), 73706#(= main_~i~0 3), 73709#(= main_~i~0 6), 73708#(= main_~i~0 5), 73711#(= main_~i~0 8), 73710#(= main_~i~0 7), 73713#(= main_~i~0 10), 73712#(= main_~i~0 9), 73715#(= main_~i~0 12), 73714#(= main_~i~0 11), 73717#(= main_~i~0 14), 73716#(= main_~i~0 13), 73719#(= main_~i~0 16), 73718#(= main_~i~0 15), 73721#(= main_~i~0 18), 73720#(= main_~i~0 17), 73723#(= main_~i~0 20), 73722#(= main_~i~0 19), 73725#(= main_~i~0 22), 73724#(= main_~i~0 21), 73727#(= main_~i~0 24), 73726#(= main_~i~0 23)] [2018-04-13 15:48:22,883 INFO L134 CoverageAnalysis]: Checked inductivity of 14878 backedges. 0 proven. 14878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:22,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-04-13 15:48:22,883 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-04-13 15:48:22,884 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=7571, Unknown=0, NotChecked=0, Total=7832 [2018-04-13 15:48:22,884 INFO L87 Difference]: Start difference. First operand 787 states and 788 transitions. Second operand 89 states. [2018-04-13 15:48:32,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:48:32,305 INFO L93 Difference]: Finished difference Result 796 states and 797 transitions. [2018-04-13 15:48:32,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-04-13 15:48:32,305 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 352 [2018-04-13 15:48:32,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:48:32,306 INFO L225 Difference]: With dead ends: 796 [2018-04-13 15:48:32,306 INFO L226 Difference]: Without dead ends: 796 [2018-04-13 15:48:32,306 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=261, Invalid=7571, Unknown=0, NotChecked=0, Total=7832 [2018-04-13 15:48:32,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-04-13 15:48:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 796. [2018-04-13 15:48:32,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2018-04-13 15:48:32,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 797 transitions. [2018-04-13 15:48:32,309 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 797 transitions. Word has length 352 [2018-04-13 15:48:32,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:48:32,309 INFO L459 AbstractCegarLoop]: Abstraction has 796 states and 797 transitions. [2018-04-13 15:48:32,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-04-13 15:48:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 797 transitions. [2018-04-13 15:48:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2018-04-13 15:48:32,310 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:48:32,310 INFO L355 BasicCegarLoop]: trace histogram [88, 88, 87, 87, 1, 1, 1, 1, 1, 1] [2018-04-13 15:48:32,310 INFO L408 AbstractCegarLoop]: === Iteration 88 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:48:32,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1723020335, now seen corresponding path program 87 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:48:32,312 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:48:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:34,002 INFO L134 CoverageAnalysis]: Checked inductivity of 15225 backedges. 0 proven. 15225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:34,017 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:48:34,018 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [89] total 89 [2018-04-13 15:48:34,018 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:48:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:34,018 INFO L182 omatonBuilderFactory]: Interpolants [75393#(= main_~i~0 7), 75392#(= main_~i~0 6), 75395#(= main_~i~0 9), 75394#(= main_~i~0 8), 75397#(= main_~i~0 11), 75396#(= main_~i~0 10), 75399#(= main_~i~0 13), 75398#(= main_~i~0 12), 75401#(= main_~i~0 15), 75400#(= main_~i~0 14), 75403#(= main_~i~0 17), 75402#(= main_~i~0 16), 75405#(= main_~i~0 19), 75404#(= main_~i~0 18), 75407#(= main_~i~0 21), 75406#(= main_~i~0 20), 75409#(= main_~i~0 23), 75408#(= main_~i~0 22), 75411#(= main_~i~0 25), 75410#(= main_~i~0 24), 75413#(= main_~i~0 27), 75412#(= main_~i~0 26), 75415#(= main_~i~0 29), 75414#(= main_~i~0 28), 75417#(= main_~i~0 31), 75416#(= main_~i~0 30), 75419#(= main_~i~0 33), 75418#(= main_~i~0 32), 75421#(= main_~i~0 35), 75420#(= main_~i~0 34), 75423#(= main_~i~0 37), 75422#(= main_~i~0 36), 75425#(= main_~i~0 39), 75424#(= main_~i~0 38), 75427#(= main_~i~0 41), 75426#(= main_~i~0 40), 75429#(= main_~i~0 43), 75428#(= main_~i~0 42), 75431#(= main_~i~0 45), 75430#(= main_~i~0 44), 75433#(= main_~i~0 47), 75432#(= main_~i~0 46), 75435#(= main_~i~0 49), 75434#(= main_~i~0 48), 75437#(= main_~i~0 51), 75436#(= main_~i~0 50), 75439#(= main_~i~0 53), 75438#(= main_~i~0 52), 75441#(= main_~i~0 55), 75440#(= main_~i~0 54), 75443#(= main_~i~0 57), 75442#(= main_~i~0 56), 75445#(= main_~i~0 59), 75444#(= main_~i~0 58), 75447#(= main_~i~0 61), 75446#(= main_~i~0 60), 75449#(= main_~i~0 63), 75448#(= main_~i~0 62), 75451#(= main_~i~0 65), 75450#(= main_~i~0 64), 75453#(= main_~i~0 67), 75452#(= main_~i~0 66), 75455#(= main_~i~0 69), 75454#(= main_~i~0 68), 75457#(= main_~i~0 71), 75456#(= main_~i~0 70), 75459#(= main_~i~0 73), 75458#(= main_~i~0 72), 75461#(= main_~i~0 75), 75460#(= main_~i~0 74), 75463#(= main_~i~0 77), 75462#(= main_~i~0 76), 75465#(= main_~i~0 79), 75464#(= main_~i~0 78), 75467#(= main_~i~0 81), 75466#(= main_~i~0 80), 75469#(= main_~i~0 83), 75468#(= main_~i~0 82), 75471#(= main_~i~0 85), 75470#(= main_~i~0 84), 75473#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 75472#(= main_~i~0 86), 75383#false, 75382#true, 75387#(= main_~i~0 1), 75386#(= main_~i~0 0), 75389#(= main_~i~0 3), 75388#(= main_~i~0 2), 75391#(= main_~i~0 5), 75390#(= main_~i~0 4)] [2018-04-13 15:48:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 15225 backedges. 0 proven. 15225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:34,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 90 states [2018-04-13 15:48:34,019 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2018-04-13 15:48:34,019 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=7746, Unknown=0, NotChecked=0, Total=8010 [2018-04-13 15:48:34,019 INFO L87 Difference]: Start difference. First operand 796 states and 797 transitions. Second operand 90 states. [2018-04-13 15:48:43,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:48:43,696 INFO L93 Difference]: Finished difference Result 805 states and 806 transitions. [2018-04-13 15:48:43,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-04-13 15:48:43,696 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 356 [2018-04-13 15:48:43,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:48:43,697 INFO L225 Difference]: With dead ends: 805 [2018-04-13 15:48:43,697 INFO L226 Difference]: Without dead ends: 805 [2018-04-13 15:48:43,697 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=264, Invalid=7746, Unknown=0, NotChecked=0, Total=8010 [2018-04-13 15:48:43,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2018-04-13 15:48:43,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 805. [2018-04-13 15:48:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2018-04-13 15:48:43,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 806 transitions. [2018-04-13 15:48:43,700 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 806 transitions. Word has length 356 [2018-04-13 15:48:43,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:48:43,700 INFO L459 AbstractCegarLoop]: Abstraction has 805 states and 806 transitions. [2018-04-13 15:48:43,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 90 states. [2018-04-13 15:48:43,700 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 806 transitions. [2018-04-13 15:48:43,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-04-13 15:48:43,701 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:48:43,701 INFO L355 BasicCegarLoop]: trace histogram [89, 89, 88, 88, 1, 1, 1, 1, 1, 1] [2018-04-13 15:48:43,701 INFO L408 AbstractCegarLoop]: === Iteration 89 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:48:43,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1263916888, now seen corresponding path program 88 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:48:43,703 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:48:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 15576 backedges. 0 proven. 15576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:45,428 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:48:45,428 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [90] total 90 [2018-04-13 15:48:45,428 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:48:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:45,429 INFO L182 omatonBuilderFactory]: Interpolants [77085#false, 77084#true, 77089#(= main_~i~0 1), 77088#(= main_~i~0 0), 77091#(= main_~i~0 3), 77090#(= main_~i~0 2), 77093#(= main_~i~0 5), 77092#(= main_~i~0 4), 77095#(= main_~i~0 7), 77094#(= main_~i~0 6), 77097#(= main_~i~0 9), 77096#(= main_~i~0 8), 77099#(= main_~i~0 11), 77098#(= main_~i~0 10), 77101#(= main_~i~0 13), 77100#(= main_~i~0 12), 77103#(= main_~i~0 15), 77102#(= main_~i~0 14), 77105#(= main_~i~0 17), 77104#(= main_~i~0 16), 77107#(= main_~i~0 19), 77106#(= main_~i~0 18), 77109#(= main_~i~0 21), 77108#(= main_~i~0 20), 77111#(= main_~i~0 23), 77110#(= main_~i~0 22), 77113#(= main_~i~0 25), 77112#(= main_~i~0 24), 77115#(= main_~i~0 27), 77114#(= main_~i~0 26), 77117#(= main_~i~0 29), 77116#(= main_~i~0 28), 77119#(= main_~i~0 31), 77118#(= main_~i~0 30), 77121#(= main_~i~0 33), 77120#(= main_~i~0 32), 77123#(= main_~i~0 35), 77122#(= main_~i~0 34), 77125#(= main_~i~0 37), 77124#(= main_~i~0 36), 77127#(= main_~i~0 39), 77126#(= main_~i~0 38), 77129#(= main_~i~0 41), 77128#(= main_~i~0 40), 77131#(= main_~i~0 43), 77130#(= main_~i~0 42), 77133#(= main_~i~0 45), 77132#(= main_~i~0 44), 77135#(= main_~i~0 47), 77134#(= main_~i~0 46), 77137#(= main_~i~0 49), 77136#(= main_~i~0 48), 77139#(= main_~i~0 51), 77138#(= main_~i~0 50), 77141#(= main_~i~0 53), 77140#(= main_~i~0 52), 77143#(= main_~i~0 55), 77142#(= main_~i~0 54), 77145#(= main_~i~0 57), 77144#(= main_~i~0 56), 77147#(= main_~i~0 59), 77146#(= main_~i~0 58), 77149#(= main_~i~0 61), 77148#(= main_~i~0 60), 77151#(= main_~i~0 63), 77150#(= main_~i~0 62), 77153#(= main_~i~0 65), 77152#(= main_~i~0 64), 77155#(= main_~i~0 67), 77154#(= main_~i~0 66), 77157#(= main_~i~0 69), 77156#(= main_~i~0 68), 77159#(= main_~i~0 71), 77158#(= main_~i~0 70), 77161#(= main_~i~0 73), 77160#(= main_~i~0 72), 77163#(= main_~i~0 75), 77162#(= main_~i~0 74), 77165#(= main_~i~0 77), 77164#(= main_~i~0 76), 77167#(= main_~i~0 79), 77166#(= main_~i~0 78), 77169#(= main_~i~0 81), 77168#(= main_~i~0 80), 77171#(= main_~i~0 83), 77170#(= main_~i~0 82), 77173#(= main_~i~0 85), 77172#(= main_~i~0 84), 77175#(= main_~i~0 87), 77174#(= main_~i~0 86), 77176#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:48:45,429 INFO L134 CoverageAnalysis]: Checked inductivity of 15576 backedges. 0 proven. 15576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:45,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-04-13 15:48:45,429 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-04-13 15:48:45,429 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=7923, Unknown=0, NotChecked=0, Total=8190 [2018-04-13 15:48:45,430 INFO L87 Difference]: Start difference. First operand 805 states and 806 transitions. Second operand 91 states. [2018-04-13 15:48:55,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:48:55,328 INFO L93 Difference]: Finished difference Result 814 states and 815 transitions. [2018-04-13 15:48:55,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2018-04-13 15:48:55,328 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 360 [2018-04-13 15:48:55,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:48:55,328 INFO L225 Difference]: With dead ends: 814 [2018-04-13 15:48:55,329 INFO L226 Difference]: Without dead ends: 814 [2018-04-13 15:48:55,329 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=267, Invalid=7923, Unknown=0, NotChecked=0, Total=8190 [2018-04-13 15:48:55,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2018-04-13 15:48:55,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 814. [2018-04-13 15:48:55,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 814 states. [2018-04-13 15:48:55,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 815 transitions. [2018-04-13 15:48:55,360 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 815 transitions. Word has length 360 [2018-04-13 15:48:55,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:48:55,361 INFO L459 AbstractCegarLoop]: Abstraction has 814 states and 815 transitions. [2018-04-13 15:48:55,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-04-13 15:48:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 815 transitions. [2018-04-13 15:48:55,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2018-04-13 15:48:55,361 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:48:55,362 INFO L355 BasicCegarLoop]: trace histogram [90, 90, 89, 89, 1, 1, 1, 1, 1, 1] [2018-04-13 15:48:55,362 INFO L408 AbstractCegarLoop]: === Iteration 90 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:48:55,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1934608223, now seen corresponding path program 89 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:48:55,364 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:48:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:48:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 15931 backedges. 0 proven. 15931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:57,132 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:48:57,132 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [91] total 91 [2018-04-13 15:48:57,132 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:48:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:57,132 INFO L182 omatonBuilderFactory]: Interpolants [78849#(= main_~i~0 40), 78848#(= main_~i~0 39), 78851#(= main_~i~0 42), 78850#(= main_~i~0 41), 78853#(= main_~i~0 44), 78852#(= main_~i~0 43), 78855#(= main_~i~0 46), 78854#(= main_~i~0 45), 78857#(= main_~i~0 48), 78856#(= main_~i~0 47), 78859#(= main_~i~0 50), 78858#(= main_~i~0 49), 78861#(= main_~i~0 52), 78860#(= main_~i~0 51), 78863#(= main_~i~0 54), 78862#(= main_~i~0 53), 78865#(= main_~i~0 56), 78864#(= main_~i~0 55), 78867#(= main_~i~0 58), 78866#(= main_~i~0 57), 78869#(= main_~i~0 60), 78868#(= main_~i~0 59), 78871#(= main_~i~0 62), 78870#(= main_~i~0 61), 78873#(= main_~i~0 64), 78872#(= main_~i~0 63), 78875#(= main_~i~0 66), 78874#(= main_~i~0 65), 78877#(= main_~i~0 68), 78876#(= main_~i~0 67), 78879#(= main_~i~0 70), 78878#(= main_~i~0 69), 78881#(= main_~i~0 72), 78880#(= main_~i~0 71), 78883#(= main_~i~0 74), 78882#(= main_~i~0 73), 78885#(= main_~i~0 76), 78884#(= main_~i~0 75), 78887#(= main_~i~0 78), 78886#(= main_~i~0 77), 78889#(= main_~i~0 80), 78888#(= main_~i~0 79), 78891#(= main_~i~0 82), 78890#(= main_~i~0 81), 78893#(= main_~i~0 84), 78892#(= main_~i~0 83), 78895#(= main_~i~0 86), 78894#(= main_~i~0 85), 78897#(= main_~i~0 88), 78896#(= main_~i~0 87), 78898#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 78805#true, 78806#false, 78809#(= main_~i~0 0), 78811#(= main_~i~0 2), 78810#(= main_~i~0 1), 78813#(= main_~i~0 4), 78812#(= main_~i~0 3), 78815#(= main_~i~0 6), 78814#(= main_~i~0 5), 78817#(= main_~i~0 8), 78816#(= main_~i~0 7), 78819#(= main_~i~0 10), 78818#(= main_~i~0 9), 78821#(= main_~i~0 12), 78820#(= main_~i~0 11), 78823#(= main_~i~0 14), 78822#(= main_~i~0 13), 78825#(= main_~i~0 16), 78824#(= main_~i~0 15), 78827#(= main_~i~0 18), 78826#(= main_~i~0 17), 78829#(= main_~i~0 20), 78828#(= main_~i~0 19), 78831#(= main_~i~0 22), 78830#(= main_~i~0 21), 78833#(= main_~i~0 24), 78832#(= main_~i~0 23), 78835#(= main_~i~0 26), 78834#(= main_~i~0 25), 78837#(= main_~i~0 28), 78836#(= main_~i~0 27), 78839#(= main_~i~0 30), 78838#(= main_~i~0 29), 78841#(= main_~i~0 32), 78840#(= main_~i~0 31), 78843#(= main_~i~0 34), 78842#(= main_~i~0 33), 78845#(= main_~i~0 36), 78844#(= main_~i~0 35), 78847#(= main_~i~0 38), 78846#(= main_~i~0 37)] [2018-04-13 15:48:57,133 INFO L134 CoverageAnalysis]: Checked inductivity of 15931 backedges. 0 proven. 15931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:48:57,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-04-13 15:48:57,133 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-04-13 15:48:57,133 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=8102, Unknown=0, NotChecked=0, Total=8372 [2018-04-13 15:48:57,133 INFO L87 Difference]: Start difference. First operand 814 states and 815 transitions. Second operand 92 states. [2018-04-13 15:49:07,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:49:07,512 INFO L93 Difference]: Finished difference Result 823 states and 824 transitions. [2018-04-13 15:49:07,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-04-13 15:49:07,512 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 364 [2018-04-13 15:49:07,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:49:07,513 INFO L225 Difference]: With dead ends: 823 [2018-04-13 15:49:07,513 INFO L226 Difference]: Without dead ends: 823 [2018-04-13 15:49:07,513 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=270, Invalid=8102, Unknown=0, NotChecked=0, Total=8372 [2018-04-13 15:49:07,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2018-04-13 15:49:07,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 823. [2018-04-13 15:49:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2018-04-13 15:49:07,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 824 transitions. [2018-04-13 15:49:07,516 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 824 transitions. Word has length 364 [2018-04-13 15:49:07,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:49:07,516 INFO L459 AbstractCegarLoop]: Abstraction has 823 states and 824 transitions. [2018-04-13 15:49:07,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-04-13 15:49:07,516 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 824 transitions. [2018-04-13 15:49:07,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-04-13 15:49:07,517 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:49:07,517 INFO L355 BasicCegarLoop]: trace histogram [91, 91, 90, 90, 1, 1, 1, 1, 1, 1] [2018-04-13 15:49:07,517 INFO L408 AbstractCegarLoop]: === Iteration 91 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:49:07,517 INFO L82 PathProgramCache]: Analyzing trace with hash -758406118, now seen corresponding path program 90 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:49:07,519 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:49:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:49:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:49:09,265 INFO L134 CoverageAnalysis]: Checked inductivity of 16290 backedges. 0 proven. 16290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:09,280 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:49:09,280 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [92] total 92 [2018-04-13 15:49:09,280 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:49:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:09,281 INFO L182 omatonBuilderFactory]: Interpolants [80545#true, 80546#false, 80549#(= main_~i~0 0), 80551#(= main_~i~0 2), 80550#(= main_~i~0 1), 80553#(= main_~i~0 4), 80552#(= main_~i~0 3), 80555#(= main_~i~0 6), 80554#(= main_~i~0 5), 80557#(= main_~i~0 8), 80556#(= main_~i~0 7), 80559#(= main_~i~0 10), 80558#(= main_~i~0 9), 80561#(= main_~i~0 12), 80560#(= main_~i~0 11), 80563#(= main_~i~0 14), 80562#(= main_~i~0 13), 80565#(= main_~i~0 16), 80564#(= main_~i~0 15), 80567#(= main_~i~0 18), 80566#(= main_~i~0 17), 80569#(= main_~i~0 20), 80568#(= main_~i~0 19), 80571#(= main_~i~0 22), 80570#(= main_~i~0 21), 80573#(= main_~i~0 24), 80572#(= main_~i~0 23), 80575#(= main_~i~0 26), 80574#(= main_~i~0 25), 80577#(= main_~i~0 28), 80576#(= main_~i~0 27), 80579#(= main_~i~0 30), 80578#(= main_~i~0 29), 80581#(= main_~i~0 32), 80580#(= main_~i~0 31), 80583#(= main_~i~0 34), 80582#(= main_~i~0 33), 80585#(= main_~i~0 36), 80584#(= main_~i~0 35), 80587#(= main_~i~0 38), 80586#(= main_~i~0 37), 80589#(= main_~i~0 40), 80588#(= main_~i~0 39), 80591#(= main_~i~0 42), 80590#(= main_~i~0 41), 80593#(= main_~i~0 44), 80592#(= main_~i~0 43), 80595#(= main_~i~0 46), 80594#(= main_~i~0 45), 80597#(= main_~i~0 48), 80596#(= main_~i~0 47), 80599#(= main_~i~0 50), 80598#(= main_~i~0 49), 80601#(= main_~i~0 52), 80600#(= main_~i~0 51), 80603#(= main_~i~0 54), 80602#(= main_~i~0 53), 80605#(= main_~i~0 56), 80604#(= main_~i~0 55), 80607#(= main_~i~0 58), 80606#(= main_~i~0 57), 80609#(= main_~i~0 60), 80608#(= main_~i~0 59), 80611#(= main_~i~0 62), 80610#(= main_~i~0 61), 80613#(= main_~i~0 64), 80612#(= main_~i~0 63), 80615#(= main_~i~0 66), 80614#(= main_~i~0 65), 80617#(= main_~i~0 68), 80616#(= main_~i~0 67), 80619#(= main_~i~0 70), 80618#(= main_~i~0 69), 80621#(= main_~i~0 72), 80620#(= main_~i~0 71), 80623#(= main_~i~0 74), 80622#(= main_~i~0 73), 80625#(= main_~i~0 76), 80624#(= main_~i~0 75), 80627#(= main_~i~0 78), 80626#(= main_~i~0 77), 80629#(= main_~i~0 80), 80628#(= main_~i~0 79), 80631#(= main_~i~0 82), 80630#(= main_~i~0 81), 80633#(= main_~i~0 84), 80632#(= main_~i~0 83), 80635#(= main_~i~0 86), 80634#(= main_~i~0 85), 80637#(= main_~i~0 88), 80636#(= main_~i~0 87), 80639#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 80638#(= main_~i~0 89)] [2018-04-13 15:49:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 16290 backedges. 0 proven. 16290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:09,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 93 states [2018-04-13 15:49:09,281 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2018-04-13 15:49:09,282 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=8283, Unknown=0, NotChecked=0, Total=8556 [2018-04-13 15:49:09,282 INFO L87 Difference]: Start difference. First operand 823 states and 824 transitions. Second operand 93 states. [2018-04-13 15:49:19,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:49:19,480 INFO L93 Difference]: Finished difference Result 832 states and 833 transitions. [2018-04-13 15:49:19,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-04-13 15:49:19,481 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 368 [2018-04-13 15:49:19,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:49:19,481 INFO L225 Difference]: With dead ends: 832 [2018-04-13 15:49:19,481 INFO L226 Difference]: Without dead ends: 832 [2018-04-13 15:49:19,482 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=273, Invalid=8283, Unknown=0, NotChecked=0, Total=8556 [2018-04-13 15:49:19,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2018-04-13 15:49:19,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2018-04-13 15:49:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2018-04-13 15:49:19,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 833 transitions. [2018-04-13 15:49:19,484 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 833 transitions. Word has length 368 [2018-04-13 15:49:19,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:49:19,484 INFO L459 AbstractCegarLoop]: Abstraction has 832 states and 833 transitions. [2018-04-13 15:49:19,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 93 states. [2018-04-13 15:49:19,485 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 833 transitions. [2018-04-13 15:49:19,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2018-04-13 15:49:19,485 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:49:19,485 INFO L355 BasicCegarLoop]: trace histogram [92, 92, 91, 91, 1, 1, 1, 1, 1, 1] [2018-04-13 15:49:19,486 INFO L408 AbstractCegarLoop]: === Iteration 92 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:49:19,486 INFO L82 PathProgramCache]: Analyzing trace with hash 2112006931, now seen corresponding path program 91 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:49:19,488 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:49:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:49:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:49:21,335 INFO L134 CoverageAnalysis]: Checked inductivity of 16653 backedges. 0 proven. 16653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:21,350 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:49:21,350 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [93] total 93 [2018-04-13 15:49:21,351 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:49:21,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:21,351 INFO L182 omatonBuilderFactory]: Interpolants [82305#false, 82304#true, 82309#(= main_~i~0 1), 82308#(= main_~i~0 0), 82311#(= main_~i~0 3), 82310#(= main_~i~0 2), 82313#(= main_~i~0 5), 82312#(= main_~i~0 4), 82315#(= main_~i~0 7), 82314#(= main_~i~0 6), 82317#(= main_~i~0 9), 82316#(= main_~i~0 8), 82319#(= main_~i~0 11), 82318#(= main_~i~0 10), 82321#(= main_~i~0 13), 82320#(= main_~i~0 12), 82323#(= main_~i~0 15), 82322#(= main_~i~0 14), 82325#(= main_~i~0 17), 82324#(= main_~i~0 16), 82327#(= main_~i~0 19), 82326#(= main_~i~0 18), 82329#(= main_~i~0 21), 82328#(= main_~i~0 20), 82331#(= main_~i~0 23), 82330#(= main_~i~0 22), 82333#(= main_~i~0 25), 82332#(= main_~i~0 24), 82335#(= main_~i~0 27), 82334#(= main_~i~0 26), 82337#(= main_~i~0 29), 82336#(= main_~i~0 28), 82339#(= main_~i~0 31), 82338#(= main_~i~0 30), 82341#(= main_~i~0 33), 82340#(= main_~i~0 32), 82343#(= main_~i~0 35), 82342#(= main_~i~0 34), 82345#(= main_~i~0 37), 82344#(= main_~i~0 36), 82347#(= main_~i~0 39), 82346#(= main_~i~0 38), 82349#(= main_~i~0 41), 82348#(= main_~i~0 40), 82351#(= main_~i~0 43), 82350#(= main_~i~0 42), 82353#(= main_~i~0 45), 82352#(= main_~i~0 44), 82355#(= main_~i~0 47), 82354#(= main_~i~0 46), 82357#(= main_~i~0 49), 82356#(= main_~i~0 48), 82359#(= main_~i~0 51), 82358#(= main_~i~0 50), 82361#(= main_~i~0 53), 82360#(= main_~i~0 52), 82363#(= main_~i~0 55), 82362#(= main_~i~0 54), 82365#(= main_~i~0 57), 82364#(= main_~i~0 56), 82367#(= main_~i~0 59), 82366#(= main_~i~0 58), 82369#(= main_~i~0 61), 82368#(= main_~i~0 60), 82371#(= main_~i~0 63), 82370#(= main_~i~0 62), 82373#(= main_~i~0 65), 82372#(= main_~i~0 64), 82375#(= main_~i~0 67), 82374#(= main_~i~0 66), 82377#(= main_~i~0 69), 82376#(= main_~i~0 68), 82379#(= main_~i~0 71), 82378#(= main_~i~0 70), 82381#(= main_~i~0 73), 82380#(= main_~i~0 72), 82383#(= main_~i~0 75), 82382#(= main_~i~0 74), 82385#(= main_~i~0 77), 82384#(= main_~i~0 76), 82387#(= main_~i~0 79), 82386#(= main_~i~0 78), 82389#(= main_~i~0 81), 82388#(= main_~i~0 80), 82391#(= main_~i~0 83), 82390#(= main_~i~0 82), 82393#(= main_~i~0 85), 82392#(= main_~i~0 84), 82395#(= main_~i~0 87), 82394#(= main_~i~0 86), 82397#(= main_~i~0 89), 82396#(= main_~i~0 88), 82399#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 82398#(= main_~i~0 90)] [2018-04-13 15:49:21,351 INFO L134 CoverageAnalysis]: Checked inductivity of 16653 backedges. 0 proven. 16653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:21,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-04-13 15:49:21,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-04-13 15:49:21,352 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=8466, Unknown=0, NotChecked=0, Total=8742 [2018-04-13 15:49:21,352 INFO L87 Difference]: Start difference. First operand 832 states and 833 transitions. Second operand 94 states. [2018-04-13 15:49:31,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:49:31,994 INFO L93 Difference]: Finished difference Result 841 states and 842 transitions. [2018-04-13 15:49:31,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-04-13 15:49:31,994 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 372 [2018-04-13 15:49:31,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:49:31,995 INFO L225 Difference]: With dead ends: 841 [2018-04-13 15:49:31,995 INFO L226 Difference]: Without dead ends: 841 [2018-04-13 15:49:31,995 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=276, Invalid=8466, Unknown=0, NotChecked=0, Total=8742 [2018-04-13 15:49:31,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2018-04-13 15:49:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 841. [2018-04-13 15:49:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2018-04-13 15:49:31,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 842 transitions. [2018-04-13 15:49:31,998 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 842 transitions. Word has length 372 [2018-04-13 15:49:31,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:49:31,998 INFO L459 AbstractCegarLoop]: Abstraction has 841 states and 842 transitions. [2018-04-13 15:49:31,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-04-13 15:49:31,999 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 842 transitions. [2018-04-13 15:49:31,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2018-04-13 15:49:31,999 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:49:31,999 INFO L355 BasicCegarLoop]: trace histogram [93, 93, 92, 92, 1, 1, 1, 1, 1, 1] [2018-04-13 15:49:31,999 INFO L408 AbstractCegarLoop]: === Iteration 93 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:49:32,000 INFO L82 PathProgramCache]: Analyzing trace with hash 666602892, now seen corresponding path program 92 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:49:32,002 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:49:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:49:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:49:33,901 INFO L134 CoverageAnalysis]: Checked inductivity of 17020 backedges. 0 proven. 17020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:33,916 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:49:33,916 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [94] total 94 [2018-04-13 15:49:33,916 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:49:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:33,917 INFO L182 omatonBuilderFactory]: Interpolants [84097#(= main_~i~0 11), 84096#(= main_~i~0 10), 84099#(= main_~i~0 13), 84098#(= main_~i~0 12), 84101#(= main_~i~0 15), 84100#(= main_~i~0 14), 84103#(= main_~i~0 17), 84102#(= main_~i~0 16), 84105#(= main_~i~0 19), 84104#(= main_~i~0 18), 84107#(= main_~i~0 21), 84106#(= main_~i~0 20), 84109#(= main_~i~0 23), 84108#(= main_~i~0 22), 84111#(= main_~i~0 25), 84110#(= main_~i~0 24), 84113#(= main_~i~0 27), 84112#(= main_~i~0 26), 84115#(= main_~i~0 29), 84114#(= main_~i~0 28), 84117#(= main_~i~0 31), 84116#(= main_~i~0 30), 84119#(= main_~i~0 33), 84118#(= main_~i~0 32), 84121#(= main_~i~0 35), 84120#(= main_~i~0 34), 84123#(= main_~i~0 37), 84122#(= main_~i~0 36), 84125#(= main_~i~0 39), 84124#(= main_~i~0 38), 84127#(= main_~i~0 41), 84126#(= main_~i~0 40), 84129#(= main_~i~0 43), 84128#(= main_~i~0 42), 84131#(= main_~i~0 45), 84130#(= main_~i~0 44), 84133#(= main_~i~0 47), 84132#(= main_~i~0 46), 84135#(= main_~i~0 49), 84134#(= main_~i~0 48), 84137#(= main_~i~0 51), 84136#(= main_~i~0 50), 84139#(= main_~i~0 53), 84138#(= main_~i~0 52), 84141#(= main_~i~0 55), 84140#(= main_~i~0 54), 84143#(= main_~i~0 57), 84142#(= main_~i~0 56), 84145#(= main_~i~0 59), 84144#(= main_~i~0 58), 84147#(= main_~i~0 61), 84146#(= main_~i~0 60), 84149#(= main_~i~0 63), 84148#(= main_~i~0 62), 84151#(= main_~i~0 65), 84150#(= main_~i~0 64), 84153#(= main_~i~0 67), 84152#(= main_~i~0 66), 84155#(= main_~i~0 69), 84154#(= main_~i~0 68), 84157#(= main_~i~0 71), 84156#(= main_~i~0 70), 84159#(= main_~i~0 73), 84158#(= main_~i~0 72), 84161#(= main_~i~0 75), 84160#(= main_~i~0 74), 84163#(= main_~i~0 77), 84162#(= main_~i~0 76), 84165#(= main_~i~0 79), 84164#(= main_~i~0 78), 84167#(= main_~i~0 81), 84166#(= main_~i~0 80), 84169#(= main_~i~0 83), 84168#(= main_~i~0 82), 84171#(= main_~i~0 85), 84170#(= main_~i~0 84), 84173#(= main_~i~0 87), 84172#(= main_~i~0 86), 84175#(= main_~i~0 89), 84174#(= main_~i~0 88), 84177#(= main_~i~0 91), 84176#(= main_~i~0 90), 84178#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 84083#false, 84082#true, 84087#(= main_~i~0 1), 84086#(= main_~i~0 0), 84089#(= main_~i~0 3), 84088#(= main_~i~0 2), 84091#(= main_~i~0 5), 84090#(= main_~i~0 4), 84093#(= main_~i~0 7), 84092#(= main_~i~0 6), 84095#(= main_~i~0 9), 84094#(= main_~i~0 8)] [2018-04-13 15:49:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 17020 backedges. 0 proven. 17020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:33,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-04-13 15:49:33,917 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-04-13 15:49:33,918 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=8651, Unknown=0, NotChecked=0, Total=8930 [2018-04-13 15:49:33,918 INFO L87 Difference]: Start difference. First operand 841 states and 842 transitions. Second operand 95 states. [2018-04-13 15:49:44,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:49:44,837 INFO L93 Difference]: Finished difference Result 850 states and 851 transitions. [2018-04-13 15:49:44,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-04-13 15:49:44,837 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 376 [2018-04-13 15:49:44,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:49:44,838 INFO L225 Difference]: With dead ends: 850 [2018-04-13 15:49:44,838 INFO L226 Difference]: Without dead ends: 850 [2018-04-13 15:49:44,838 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=279, Invalid=8651, Unknown=0, NotChecked=0, Total=8930 [2018-04-13 15:49:44,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2018-04-13 15:49:44,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2018-04-13 15:49:44,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2018-04-13 15:49:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 851 transitions. [2018-04-13 15:49:44,841 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 851 transitions. Word has length 376 [2018-04-13 15:49:44,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:49:44,841 INFO L459 AbstractCegarLoop]: Abstraction has 850 states and 851 transitions. [2018-04-13 15:49:44,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-04-13 15:49:44,841 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 851 transitions. [2018-04-13 15:49:44,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2018-04-13 15:49:44,842 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:49:44,842 INFO L355 BasicCegarLoop]: trace histogram [94, 94, 93, 93, 1, 1, 1, 1, 1, 1] [2018-04-13 15:49:44,842 INFO L408 AbstractCegarLoop]: === Iteration 94 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:49:44,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1661170811, now seen corresponding path program 93 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:49:44,846 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:49:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:49:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:49:46,803 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 0 proven. 17391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:46,818 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:49:46,818 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [95] total 95 [2018-04-13 15:49:46,818 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:49:46,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:46,818 INFO L182 omatonBuilderFactory]: Interpolants [85889#(= main_~i~0 6), 85888#(= main_~i~0 5), 85891#(= main_~i~0 8), 85890#(= main_~i~0 7), 85893#(= main_~i~0 10), 85892#(= main_~i~0 9), 85895#(= main_~i~0 12), 85894#(= main_~i~0 11), 85897#(= main_~i~0 14), 85896#(= main_~i~0 13), 85899#(= main_~i~0 16), 85898#(= main_~i~0 15), 85901#(= main_~i~0 18), 85900#(= main_~i~0 17), 85903#(= main_~i~0 20), 85902#(= main_~i~0 19), 85905#(= main_~i~0 22), 85904#(= main_~i~0 21), 85907#(= main_~i~0 24), 85906#(= main_~i~0 23), 85909#(= main_~i~0 26), 85908#(= main_~i~0 25), 85911#(= main_~i~0 28), 85910#(= main_~i~0 27), 85913#(= main_~i~0 30), 85912#(= main_~i~0 29), 85915#(= main_~i~0 32), 85914#(= main_~i~0 31), 85917#(= main_~i~0 34), 85916#(= main_~i~0 33), 85919#(= main_~i~0 36), 85918#(= main_~i~0 35), 85921#(= main_~i~0 38), 85920#(= main_~i~0 37), 85923#(= main_~i~0 40), 85922#(= main_~i~0 39), 85925#(= main_~i~0 42), 85924#(= main_~i~0 41), 85927#(= main_~i~0 44), 85926#(= main_~i~0 43), 85929#(= main_~i~0 46), 85928#(= main_~i~0 45), 85931#(= main_~i~0 48), 85930#(= main_~i~0 47), 85933#(= main_~i~0 50), 85932#(= main_~i~0 49), 85935#(= main_~i~0 52), 85934#(= main_~i~0 51), 85937#(= main_~i~0 54), 85936#(= main_~i~0 53), 85939#(= main_~i~0 56), 85938#(= main_~i~0 55), 85941#(= main_~i~0 58), 85940#(= main_~i~0 57), 85943#(= main_~i~0 60), 85942#(= main_~i~0 59), 85945#(= main_~i~0 62), 85944#(= main_~i~0 61), 85947#(= main_~i~0 64), 85946#(= main_~i~0 63), 85949#(= main_~i~0 66), 85948#(= main_~i~0 65), 85951#(= main_~i~0 68), 85950#(= main_~i~0 67), 85953#(= main_~i~0 70), 85952#(= main_~i~0 69), 85955#(= main_~i~0 72), 85954#(= main_~i~0 71), 85957#(= main_~i~0 74), 85956#(= main_~i~0 73), 85959#(= main_~i~0 76), 85958#(= main_~i~0 75), 85961#(= main_~i~0 78), 85960#(= main_~i~0 77), 85963#(= main_~i~0 80), 85962#(= main_~i~0 79), 85965#(= main_~i~0 82), 85964#(= main_~i~0 81), 85967#(= main_~i~0 84), 85966#(= main_~i~0 83), 85969#(= main_~i~0 86), 85968#(= main_~i~0 85), 85971#(= main_~i~0 88), 85970#(= main_~i~0 87), 85973#(= main_~i~0 90), 85972#(= main_~i~0 89), 85975#(= main_~i~0 92), 85974#(= main_~i~0 91), 85976#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 85879#true, 85880#false, 85883#(= main_~i~0 0), 85885#(= main_~i~0 2), 85884#(= main_~i~0 1), 85887#(= main_~i~0 4), 85886#(= main_~i~0 3)] [2018-04-13 15:49:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 0 proven. 17391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:46,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-04-13 15:49:46,819 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-04-13 15:49:46,819 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=8838, Unknown=0, NotChecked=0, Total=9120 [2018-04-13 15:49:46,819 INFO L87 Difference]: Start difference. First operand 850 states and 851 transitions. Second operand 96 states. [2018-04-13 15:49:57,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:49:57,803 INFO L93 Difference]: Finished difference Result 859 states and 860 transitions. [2018-04-13 15:49:57,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-04-13 15:49:57,804 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 380 [2018-04-13 15:49:57,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:49:57,804 INFO L225 Difference]: With dead ends: 859 [2018-04-13 15:49:57,804 INFO L226 Difference]: Without dead ends: 859 [2018-04-13 15:49:57,805 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=282, Invalid=8838, Unknown=0, NotChecked=0, Total=9120 [2018-04-13 15:49:57,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2018-04-13 15:49:57,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2018-04-13 15:49:57,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2018-04-13 15:49:57,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 860 transitions. [2018-04-13 15:49:57,808 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 860 transitions. Word has length 380 [2018-04-13 15:49:57,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:49:57,808 INFO L459 AbstractCegarLoop]: Abstraction has 859 states and 860 transitions. [2018-04-13 15:49:57,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-04-13 15:49:57,808 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 860 transitions. [2018-04-13 15:49:57,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2018-04-13 15:49:57,809 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:49:57,809 INFO L355 BasicCegarLoop]: trace histogram [95, 95, 94, 94, 1, 1, 1, 1, 1, 1] [2018-04-13 15:49:57,809 INFO L408 AbstractCegarLoop]: === Iteration 95 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:49:57,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1831593214, now seen corresponding path program 94 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:49:57,811 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:49:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:49:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:49:59,796 INFO L134 CoverageAnalysis]: Checked inductivity of 17766 backedges. 0 proven. 17766 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:59,811 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:49:59,811 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [96] total 96 [2018-04-13 15:49:59,811 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:49:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:59,812 INFO L182 omatonBuilderFactory]: Interpolants [87695#true, 87696#false, 87699#(= main_~i~0 0), 87701#(= main_~i~0 2), 87700#(= main_~i~0 1), 87703#(= main_~i~0 4), 87702#(= main_~i~0 3), 87705#(= main_~i~0 6), 87704#(= main_~i~0 5), 87707#(= main_~i~0 8), 87706#(= main_~i~0 7), 87709#(= main_~i~0 10), 87708#(= main_~i~0 9), 87711#(= main_~i~0 12), 87710#(= main_~i~0 11), 87713#(= main_~i~0 14), 87712#(= main_~i~0 13), 87715#(= main_~i~0 16), 87714#(= main_~i~0 15), 87717#(= main_~i~0 18), 87716#(= main_~i~0 17), 87719#(= main_~i~0 20), 87718#(= main_~i~0 19), 87721#(= main_~i~0 22), 87720#(= main_~i~0 21), 87723#(= main_~i~0 24), 87722#(= main_~i~0 23), 87725#(= main_~i~0 26), 87724#(= main_~i~0 25), 87727#(= main_~i~0 28), 87726#(= main_~i~0 27), 87729#(= main_~i~0 30), 87728#(= main_~i~0 29), 87731#(= main_~i~0 32), 87730#(= main_~i~0 31), 87733#(= main_~i~0 34), 87732#(= main_~i~0 33), 87735#(= main_~i~0 36), 87734#(= main_~i~0 35), 87737#(= main_~i~0 38), 87736#(= main_~i~0 37), 87739#(= main_~i~0 40), 87738#(= main_~i~0 39), 87741#(= main_~i~0 42), 87740#(= main_~i~0 41), 87743#(= main_~i~0 44), 87742#(= main_~i~0 43), 87745#(= main_~i~0 46), 87744#(= main_~i~0 45), 87747#(= main_~i~0 48), 87746#(= main_~i~0 47), 87749#(= main_~i~0 50), 87748#(= main_~i~0 49), 87751#(= main_~i~0 52), 87750#(= main_~i~0 51), 87753#(= main_~i~0 54), 87752#(= main_~i~0 53), 87755#(= main_~i~0 56), 87754#(= main_~i~0 55), 87757#(= main_~i~0 58), 87756#(= main_~i~0 57), 87759#(= main_~i~0 60), 87758#(= main_~i~0 59), 87761#(= main_~i~0 62), 87760#(= main_~i~0 61), 87763#(= main_~i~0 64), 87762#(= main_~i~0 63), 87765#(= main_~i~0 66), 87764#(= main_~i~0 65), 87767#(= main_~i~0 68), 87766#(= main_~i~0 67), 87769#(= main_~i~0 70), 87768#(= main_~i~0 69), 87771#(= main_~i~0 72), 87770#(= main_~i~0 71), 87773#(= main_~i~0 74), 87772#(= main_~i~0 73), 87775#(= main_~i~0 76), 87774#(= main_~i~0 75), 87777#(= main_~i~0 78), 87776#(= main_~i~0 77), 87779#(= main_~i~0 80), 87778#(= main_~i~0 79), 87781#(= main_~i~0 82), 87780#(= main_~i~0 81), 87783#(= main_~i~0 84), 87782#(= main_~i~0 83), 87785#(= main_~i~0 86), 87784#(= main_~i~0 85), 87787#(= main_~i~0 88), 87786#(= main_~i~0 87), 87789#(= main_~i~0 90), 87788#(= main_~i~0 89), 87791#(= main_~i~0 92), 87790#(= main_~i~0 91), 87793#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 87792#(= main_~i~0 93)] [2018-04-13 15:49:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 17766 backedges. 0 proven. 17766 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:49:59,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-04-13 15:49:59,812 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-04-13 15:49:59,813 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=9027, Unknown=0, NotChecked=0, Total=9312 [2018-04-13 15:49:59,813 INFO L87 Difference]: Start difference. First operand 859 states and 860 transitions. Second operand 97 states. [2018-04-13 15:50:11,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:50:11,303 INFO L93 Difference]: Finished difference Result 868 states and 869 transitions. [2018-04-13 15:50:11,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-04-13 15:50:11,303 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 384 [2018-04-13 15:50:11,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:50:11,304 INFO L225 Difference]: With dead ends: 868 [2018-04-13 15:50:11,304 INFO L226 Difference]: Without dead ends: 868 [2018-04-13 15:50:11,304 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=285, Invalid=9027, Unknown=0, NotChecked=0, Total=9312 [2018-04-13 15:50:11,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2018-04-13 15:50:11,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 868. [2018-04-13 15:50:11,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 868 states. [2018-04-13 15:50:11,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 869 transitions. [2018-04-13 15:50:11,307 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 869 transitions. Word has length 384 [2018-04-13 15:50:11,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:50:11,307 INFO L459 AbstractCegarLoop]: Abstraction has 868 states and 869 transitions. [2018-04-13 15:50:11,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-04-13 15:50:11,307 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 869 transitions. [2018-04-13 15:50:11,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2018-04-13 15:50:11,308 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:50:11,308 INFO L355 BasicCegarLoop]: trace histogram [96, 96, 95, 95, 1, 1, 1, 1, 1, 1] [2018-04-13 15:50:11,308 INFO L408 AbstractCegarLoop]: === Iteration 96 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:50:11,308 INFO L82 PathProgramCache]: Analyzing trace with hash 2058344951, now seen corresponding path program 95 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:50:11,311 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:50:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:50:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:50:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 18145 backedges. 0 proven. 18145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:13,315 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:50:13,315 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2018-04-13 15:50:13,315 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:50:13,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:13,316 INFO L182 omatonBuilderFactory]: Interpolants [89601#(= main_~i~0 67), 89600#(= main_~i~0 66), 89603#(= main_~i~0 69), 89602#(= main_~i~0 68), 89605#(= main_~i~0 71), 89604#(= main_~i~0 70), 89607#(= main_~i~0 73), 89606#(= main_~i~0 72), 89609#(= main_~i~0 75), 89608#(= main_~i~0 74), 89611#(= main_~i~0 77), 89610#(= main_~i~0 76), 89613#(= main_~i~0 79), 89612#(= main_~i~0 78), 89615#(= main_~i~0 81), 89614#(= main_~i~0 80), 89617#(= main_~i~0 83), 89616#(= main_~i~0 82), 89619#(= main_~i~0 85), 89618#(= main_~i~0 84), 89621#(= main_~i~0 87), 89620#(= main_~i~0 86), 89623#(= main_~i~0 89), 89622#(= main_~i~0 88), 89625#(= main_~i~0 91), 89624#(= main_~i~0 90), 89627#(= main_~i~0 93), 89626#(= main_~i~0 92), 89629#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 89628#(= main_~i~0 94), 89531#false, 89530#true, 89535#(= main_~i~0 1), 89534#(= main_~i~0 0), 89537#(= main_~i~0 3), 89536#(= main_~i~0 2), 89539#(= main_~i~0 5), 89538#(= main_~i~0 4), 89541#(= main_~i~0 7), 89540#(= main_~i~0 6), 89543#(= main_~i~0 9), 89542#(= main_~i~0 8), 89545#(= main_~i~0 11), 89544#(= main_~i~0 10), 89547#(= main_~i~0 13), 89546#(= main_~i~0 12), 89549#(= main_~i~0 15), 89548#(= main_~i~0 14), 89551#(= main_~i~0 17), 89550#(= main_~i~0 16), 89553#(= main_~i~0 19), 89552#(= main_~i~0 18), 89555#(= main_~i~0 21), 89554#(= main_~i~0 20), 89557#(= main_~i~0 23), 89556#(= main_~i~0 22), 89559#(= main_~i~0 25), 89558#(= main_~i~0 24), 89561#(= main_~i~0 27), 89560#(= main_~i~0 26), 89563#(= main_~i~0 29), 89562#(= main_~i~0 28), 89565#(= main_~i~0 31), 89564#(= main_~i~0 30), 89567#(= main_~i~0 33), 89566#(= main_~i~0 32), 89569#(= main_~i~0 35), 89568#(= main_~i~0 34), 89571#(= main_~i~0 37), 89570#(= main_~i~0 36), 89573#(= main_~i~0 39), 89572#(= main_~i~0 38), 89575#(= main_~i~0 41), 89574#(= main_~i~0 40), 89577#(= main_~i~0 43), 89576#(= main_~i~0 42), 89579#(= main_~i~0 45), 89578#(= main_~i~0 44), 89581#(= main_~i~0 47), 89580#(= main_~i~0 46), 89583#(= main_~i~0 49), 89582#(= main_~i~0 48), 89585#(= main_~i~0 51), 89584#(= main_~i~0 50), 89587#(= main_~i~0 53), 89586#(= main_~i~0 52), 89589#(= main_~i~0 55), 89588#(= main_~i~0 54), 89591#(= main_~i~0 57), 89590#(= main_~i~0 56), 89593#(= main_~i~0 59), 89592#(= main_~i~0 58), 89595#(= main_~i~0 61), 89594#(= main_~i~0 60), 89597#(= main_~i~0 63), 89596#(= main_~i~0 62), 89599#(= main_~i~0 65), 89598#(= main_~i~0 64)] [2018-04-13 15:50:13,316 INFO L134 CoverageAnalysis]: Checked inductivity of 18145 backedges. 0 proven. 18145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:13,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-04-13 15:50:13,316 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-04-13 15:50:13,317 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=9218, Unknown=0, NotChecked=0, Total=9506 [2018-04-13 15:50:13,317 INFO L87 Difference]: Start difference. First operand 868 states and 869 transitions. Second operand 98 states. [2018-04-13 15:50:24,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:50:24,815 INFO L93 Difference]: Finished difference Result 877 states and 878 transitions. [2018-04-13 15:50:24,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-04-13 15:50:24,815 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 388 [2018-04-13 15:50:24,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:50:24,816 INFO L225 Difference]: With dead ends: 877 [2018-04-13 15:50:24,816 INFO L226 Difference]: Without dead ends: 877 [2018-04-13 15:50:24,817 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=288, Invalid=9218, Unknown=0, NotChecked=0, Total=9506 [2018-04-13 15:50:24,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2018-04-13 15:50:24,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 877. [2018-04-13 15:50:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2018-04-13 15:50:24,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 878 transitions. [2018-04-13 15:50:24,822 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 878 transitions. Word has length 388 [2018-04-13 15:50:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:50:24,822 INFO L459 AbstractCegarLoop]: Abstraction has 877 states and 878 transitions. [2018-04-13 15:50:24,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-04-13 15:50:24,823 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 878 transitions. [2018-04-13 15:50:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2018-04-13 15:50:24,824 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:50:24,824 INFO L355 BasicCegarLoop]: trace histogram [97, 97, 96, 96, 1, 1, 1, 1, 1, 1] [2018-04-13 15:50:24,824 INFO L408 AbstractCegarLoop]: === Iteration 97 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:50:24,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1966167440, now seen corresponding path program 96 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:50:24,827 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:50:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:50:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:50:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 18528 backedges. 0 proven. 18528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:26,888 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:50:26,888 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2018-04-13 15:50:26,888 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:50:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:26,889 INFO L182 omatonBuilderFactory]: Interpolants [91393#(= main_~i~0 5), 91392#(= main_~i~0 4), 91395#(= main_~i~0 7), 91394#(= main_~i~0 6), 91397#(= main_~i~0 9), 91396#(= main_~i~0 8), 91399#(= main_~i~0 11), 91398#(= main_~i~0 10), 91401#(= main_~i~0 13), 91400#(= main_~i~0 12), 91403#(= main_~i~0 15), 91402#(= main_~i~0 14), 91405#(= main_~i~0 17), 91404#(= main_~i~0 16), 91407#(= main_~i~0 19), 91406#(= main_~i~0 18), 91409#(= main_~i~0 21), 91408#(= main_~i~0 20), 91411#(= main_~i~0 23), 91410#(= main_~i~0 22), 91413#(= main_~i~0 25), 91412#(= main_~i~0 24), 91415#(= main_~i~0 27), 91414#(= main_~i~0 26), 91417#(= main_~i~0 29), 91416#(= main_~i~0 28), 91419#(= main_~i~0 31), 91418#(= main_~i~0 30), 91421#(= main_~i~0 33), 91420#(= main_~i~0 32), 91423#(= main_~i~0 35), 91422#(= main_~i~0 34), 91425#(= main_~i~0 37), 91424#(= main_~i~0 36), 91427#(= main_~i~0 39), 91426#(= main_~i~0 38), 91429#(= main_~i~0 41), 91428#(= main_~i~0 40), 91431#(= main_~i~0 43), 91430#(= main_~i~0 42), 91433#(= main_~i~0 45), 91432#(= main_~i~0 44), 91435#(= main_~i~0 47), 91434#(= main_~i~0 46), 91437#(= main_~i~0 49), 91436#(= main_~i~0 48), 91439#(= main_~i~0 51), 91438#(= main_~i~0 50), 91441#(= main_~i~0 53), 91440#(= main_~i~0 52), 91443#(= main_~i~0 55), 91442#(= main_~i~0 54), 91445#(= main_~i~0 57), 91444#(= main_~i~0 56), 91447#(= main_~i~0 59), 91446#(= main_~i~0 58), 91449#(= main_~i~0 61), 91448#(= main_~i~0 60), 91451#(= main_~i~0 63), 91450#(= main_~i~0 62), 91453#(= main_~i~0 65), 91452#(= main_~i~0 64), 91455#(= main_~i~0 67), 91454#(= main_~i~0 66), 91457#(= main_~i~0 69), 91456#(= main_~i~0 68), 91459#(= main_~i~0 71), 91458#(= main_~i~0 70), 91461#(= main_~i~0 73), 91460#(= main_~i~0 72), 91463#(= main_~i~0 75), 91462#(= main_~i~0 74), 91465#(= main_~i~0 77), 91464#(= main_~i~0 76), 91467#(= main_~i~0 79), 91466#(= main_~i~0 78), 91469#(= main_~i~0 81), 91468#(= main_~i~0 80), 91471#(= main_~i~0 83), 91470#(= main_~i~0 82), 91473#(= main_~i~0 85), 91472#(= main_~i~0 84), 91475#(= main_~i~0 87), 91474#(= main_~i~0 86), 91477#(= main_~i~0 89), 91476#(= main_~i~0 88), 91479#(= main_~i~0 91), 91478#(= main_~i~0 90), 91481#(= main_~i~0 93), 91480#(= main_~i~0 92), 91483#(= main_~i~0 95), 91482#(= main_~i~0 94), 91484#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 91385#false, 91384#true, 91389#(= main_~i~0 1), 91388#(= main_~i~0 0), 91391#(= main_~i~0 3), 91390#(= main_~i~0 2)] [2018-04-13 15:50:26,889 INFO L134 CoverageAnalysis]: Checked inductivity of 18528 backedges. 0 proven. 18528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:26,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 99 states [2018-04-13 15:50:26,889 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2018-04-13 15:50:26,890 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=9411, Unknown=0, NotChecked=0, Total=9702 [2018-04-13 15:50:26,890 INFO L87 Difference]: Start difference. First operand 877 states and 878 transitions. Second operand 99 states. [2018-04-13 15:50:38,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:50:38,671 INFO L93 Difference]: Finished difference Result 886 states and 887 transitions. [2018-04-13 15:50:38,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2018-04-13 15:50:38,671 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 392 [2018-04-13 15:50:38,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:50:38,672 INFO L225 Difference]: With dead ends: 886 [2018-04-13 15:50:38,672 INFO L226 Difference]: Without dead ends: 886 [2018-04-13 15:50:38,673 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=291, Invalid=9411, Unknown=0, NotChecked=0, Total=9702 [2018-04-13 15:50:38,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2018-04-13 15:50:38,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 886. [2018-04-13 15:50:38,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-04-13 15:50:38,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 887 transitions. [2018-04-13 15:50:38,678 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 887 transitions. Word has length 392 [2018-04-13 15:50:38,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:50:38,678 INFO L459 AbstractCegarLoop]: Abstraction has 886 states and 887 transitions. [2018-04-13 15:50:38,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 99 states. [2018-04-13 15:50:38,678 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 887 transitions. [2018-04-13 15:50:38,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2018-04-13 15:50:38,680 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:50:38,680 INFO L355 BasicCegarLoop]: trace histogram [98, 98, 97, 97, 1, 1, 1, 1, 1, 1] [2018-04-13 15:50:38,680 INFO L408 AbstractCegarLoop]: === Iteration 98 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:50:38,680 INFO L82 PathProgramCache]: Analyzing trace with hash -709978519, now seen corresponding path program 97 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 99 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:50:38,683 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:50:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:50:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:50:40,743 INFO L134 CoverageAnalysis]: Checked inductivity of 18915 backedges. 0 proven. 18915 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:40,758 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:50:40,758 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [99] total 99 [2018-04-13 15:50:40,759 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:50:40,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:40,759 INFO L182 omatonBuilderFactory]: Interpolants [93257#true, 93258#false, 93261#(= main_~i~0 0), 93263#(= main_~i~0 2), 93262#(= main_~i~0 1), 93265#(= main_~i~0 4), 93264#(= main_~i~0 3), 93267#(= main_~i~0 6), 93266#(= main_~i~0 5), 93269#(= main_~i~0 8), 93268#(= main_~i~0 7), 93271#(= main_~i~0 10), 93270#(= main_~i~0 9), 93273#(= main_~i~0 12), 93272#(= main_~i~0 11), 93275#(= main_~i~0 14), 93274#(= main_~i~0 13), 93277#(= main_~i~0 16), 93276#(= main_~i~0 15), 93279#(= main_~i~0 18), 93278#(= main_~i~0 17), 93281#(= main_~i~0 20), 93280#(= main_~i~0 19), 93283#(= main_~i~0 22), 93282#(= main_~i~0 21), 93285#(= main_~i~0 24), 93284#(= main_~i~0 23), 93287#(= main_~i~0 26), 93286#(= main_~i~0 25), 93289#(= main_~i~0 28), 93288#(= main_~i~0 27), 93291#(= main_~i~0 30), 93290#(= main_~i~0 29), 93293#(= main_~i~0 32), 93292#(= main_~i~0 31), 93295#(= main_~i~0 34), 93294#(= main_~i~0 33), 93297#(= main_~i~0 36), 93296#(= main_~i~0 35), 93299#(= main_~i~0 38), 93298#(= main_~i~0 37), 93301#(= main_~i~0 40), 93300#(= main_~i~0 39), 93303#(= main_~i~0 42), 93302#(= main_~i~0 41), 93305#(= main_~i~0 44), 93304#(= main_~i~0 43), 93307#(= main_~i~0 46), 93306#(= main_~i~0 45), 93309#(= main_~i~0 48), 93308#(= main_~i~0 47), 93311#(= main_~i~0 50), 93310#(= main_~i~0 49), 93313#(= main_~i~0 52), 93312#(= main_~i~0 51), 93315#(= main_~i~0 54), 93314#(= main_~i~0 53), 93317#(= main_~i~0 56), 93316#(= main_~i~0 55), 93319#(= main_~i~0 58), 93318#(= main_~i~0 57), 93321#(= main_~i~0 60), 93320#(= main_~i~0 59), 93323#(= main_~i~0 62), 93322#(= main_~i~0 61), 93325#(= main_~i~0 64), 93324#(= main_~i~0 63), 93327#(= main_~i~0 66), 93326#(= main_~i~0 65), 93329#(= main_~i~0 68), 93328#(= main_~i~0 67), 93331#(= main_~i~0 70), 93330#(= main_~i~0 69), 93333#(= main_~i~0 72), 93332#(= main_~i~0 71), 93335#(= main_~i~0 74), 93334#(= main_~i~0 73), 93337#(= main_~i~0 76), 93336#(= main_~i~0 75), 93339#(= main_~i~0 78), 93338#(= main_~i~0 77), 93341#(= main_~i~0 80), 93340#(= main_~i~0 79), 93343#(= main_~i~0 82), 93342#(= main_~i~0 81), 93345#(= main_~i~0 84), 93344#(= main_~i~0 83), 93347#(= main_~i~0 86), 93346#(= main_~i~0 85), 93349#(= main_~i~0 88), 93348#(= main_~i~0 87), 93351#(= main_~i~0 90), 93350#(= main_~i~0 89), 93353#(= main_~i~0 92), 93352#(= main_~i~0 91), 93355#(= main_~i~0 94), 93354#(= main_~i~0 93), 93357#(= main_~i~0 96), 93356#(= main_~i~0 95), 93358#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:50:40,759 INFO L134 CoverageAnalysis]: Checked inductivity of 18915 backedges. 0 proven. 18915 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:40,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-04-13 15:50:40,760 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-04-13 15:50:40,760 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=9606, Unknown=0, NotChecked=0, Total=9900 [2018-04-13 15:50:40,760 INFO L87 Difference]: Start difference. First operand 886 states and 887 transitions. Second operand 100 states. [2018-04-13 15:50:52,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:50:52,782 INFO L93 Difference]: Finished difference Result 895 states and 896 transitions. [2018-04-13 15:50:52,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2018-04-13 15:50:52,782 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 396 [2018-04-13 15:50:52,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:50:52,783 INFO L225 Difference]: With dead ends: 895 [2018-04-13 15:50:52,783 INFO L226 Difference]: Without dead ends: 895 [2018-04-13 15:50:52,784 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=294, Invalid=9606, Unknown=0, NotChecked=0, Total=9900 [2018-04-13 15:50:52,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2018-04-13 15:50:52,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2018-04-13 15:50:52,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2018-04-13 15:50:52,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 896 transitions. [2018-04-13 15:50:52,787 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 896 transitions. Word has length 396 [2018-04-13 15:50:52,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:50:52,787 INFO L459 AbstractCegarLoop]: Abstraction has 895 states and 896 transitions. [2018-04-13 15:50:52,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-04-13 15:50:52,787 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 896 transitions. [2018-04-13 15:50:52,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-04-13 15:50:52,788 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:50:52,788 INFO L355 BasicCegarLoop]: trace histogram [99, 99, 98, 98, 1, 1, 1, 1, 1, 1] [2018-04-13 15:50:52,788 INFO L408 AbstractCegarLoop]: === Iteration 99 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:50:52,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1772757534, now seen corresponding path program 98 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:50:52,790 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:50:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:50:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:50:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 19306 backedges. 0 proven. 19306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:54,966 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:50:54,967 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [100] total 100 [2018-04-13 15:50:54,967 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:50:54,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:54,967 INFO L182 omatonBuilderFactory]: Interpolants [95233#(= main_~i~0 80), 95232#(= main_~i~0 79), 95235#(= main_~i~0 82), 95234#(= main_~i~0 81), 95237#(= main_~i~0 84), 95236#(= main_~i~0 83), 95239#(= main_~i~0 86), 95238#(= main_~i~0 85), 95241#(= main_~i~0 88), 95240#(= main_~i~0 87), 95243#(= main_~i~0 90), 95242#(= main_~i~0 89), 95245#(= main_~i~0 92), 95244#(= main_~i~0 91), 95247#(= main_~i~0 94), 95246#(= main_~i~0 93), 95249#(= main_~i~0 96), 95248#(= main_~i~0 95), 95251#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 95250#(= main_~i~0 97), 95149#true, 95150#false, 95153#(= main_~i~0 0), 95155#(= main_~i~0 2), 95154#(= main_~i~0 1), 95157#(= main_~i~0 4), 95156#(= main_~i~0 3), 95159#(= main_~i~0 6), 95158#(= main_~i~0 5), 95161#(= main_~i~0 8), 95160#(= main_~i~0 7), 95163#(= main_~i~0 10), 95162#(= main_~i~0 9), 95165#(= main_~i~0 12), 95164#(= main_~i~0 11), 95167#(= main_~i~0 14), 95166#(= main_~i~0 13), 95169#(= main_~i~0 16), 95168#(= main_~i~0 15), 95171#(= main_~i~0 18), 95170#(= main_~i~0 17), 95173#(= main_~i~0 20), 95172#(= main_~i~0 19), 95175#(= main_~i~0 22), 95174#(= main_~i~0 21), 95177#(= main_~i~0 24), 95176#(= main_~i~0 23), 95179#(= main_~i~0 26), 95178#(= main_~i~0 25), 95181#(= main_~i~0 28), 95180#(= main_~i~0 27), 95183#(= main_~i~0 30), 95182#(= main_~i~0 29), 95185#(= main_~i~0 32), 95184#(= main_~i~0 31), 95187#(= main_~i~0 34), 95186#(= main_~i~0 33), 95189#(= main_~i~0 36), 95188#(= main_~i~0 35), 95191#(= main_~i~0 38), 95190#(= main_~i~0 37), 95193#(= main_~i~0 40), 95192#(= main_~i~0 39), 95195#(= main_~i~0 42), 95194#(= main_~i~0 41), 95197#(= main_~i~0 44), 95196#(= main_~i~0 43), 95199#(= main_~i~0 46), 95198#(= main_~i~0 45), 95201#(= main_~i~0 48), 95200#(= main_~i~0 47), 95203#(= main_~i~0 50), 95202#(= main_~i~0 49), 95205#(= main_~i~0 52), 95204#(= main_~i~0 51), 95207#(= main_~i~0 54), 95206#(= main_~i~0 53), 95209#(= main_~i~0 56), 95208#(= main_~i~0 55), 95211#(= main_~i~0 58), 95210#(= main_~i~0 57), 95213#(= main_~i~0 60), 95212#(= main_~i~0 59), 95215#(= main_~i~0 62), 95214#(= main_~i~0 61), 95217#(= main_~i~0 64), 95216#(= main_~i~0 63), 95219#(= main_~i~0 66), 95218#(= main_~i~0 65), 95221#(= main_~i~0 68), 95220#(= main_~i~0 67), 95223#(= main_~i~0 70), 95222#(= main_~i~0 69), 95225#(= main_~i~0 72), 95224#(= main_~i~0 71), 95227#(= main_~i~0 74), 95226#(= main_~i~0 73), 95229#(= main_~i~0 76), 95228#(= main_~i~0 75), 95231#(= main_~i~0 78), 95230#(= main_~i~0 77)] [2018-04-13 15:50:54,968 INFO L134 CoverageAnalysis]: Checked inductivity of 19306 backedges. 0 proven. 19306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:50:54,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 101 states [2018-04-13 15:50:54,968 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2018-04-13 15:50:54,968 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=9803, Unknown=0, NotChecked=0, Total=10100 [2018-04-13 15:50:54,968 INFO L87 Difference]: Start difference. First operand 895 states and 896 transitions. Second operand 101 states. [2018-04-13 15:51:07,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:51:07,336 INFO L93 Difference]: Finished difference Result 904 states and 905 transitions. [2018-04-13 15:51:07,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2018-04-13 15:51:07,336 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 400 [2018-04-13 15:51:07,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:51:07,337 INFO L225 Difference]: With dead ends: 904 [2018-04-13 15:51:07,337 INFO L226 Difference]: Without dead ends: 904 [2018-04-13 15:51:07,338 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=297, Invalid=9803, Unknown=0, NotChecked=0, Total=10100 [2018-04-13 15:51:07,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2018-04-13 15:51:07,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 904. [2018-04-13 15:51:07,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2018-04-13 15:51:07,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 905 transitions. [2018-04-13 15:51:07,341 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 905 transitions. Word has length 400 [2018-04-13 15:51:07,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:51:07,341 INFO L459 AbstractCegarLoop]: Abstraction has 904 states and 905 transitions. [2018-04-13 15:51:07,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 101 states. [2018-04-13 15:51:07,341 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 905 transitions. [2018-04-13 15:51:07,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-04-13 15:51:07,342 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:51:07,342 INFO L355 BasicCegarLoop]: trace histogram [100, 100, 99, 99, 1, 1, 1, 1, 1, 1] [2018-04-13 15:51:07,342 INFO L408 AbstractCegarLoop]: === Iteration 100 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:51:07,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1700085541, now seen corresponding path program 99 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:51:07,345 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:51:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:51:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:51:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 19701 backedges. 0 proven. 19701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:09,511 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:51:09,511 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [101] total 101 [2018-04-13 15:51:09,511 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:51:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:09,512 INFO L182 omatonBuilderFactory]: Interpolants [97061#false, 97060#true, 97065#(= main_~i~0 1), 97064#(= main_~i~0 0), 97067#(= main_~i~0 3), 97066#(= main_~i~0 2), 97069#(= main_~i~0 5), 97068#(= main_~i~0 4), 97071#(= main_~i~0 7), 97070#(= main_~i~0 6), 97073#(= main_~i~0 9), 97072#(= main_~i~0 8), 97075#(= main_~i~0 11), 97074#(= main_~i~0 10), 97077#(= main_~i~0 13), 97076#(= main_~i~0 12), 97079#(= main_~i~0 15), 97078#(= main_~i~0 14), 97081#(= main_~i~0 17), 97080#(= main_~i~0 16), 97083#(= main_~i~0 19), 97082#(= main_~i~0 18), 97085#(= main_~i~0 21), 97084#(= main_~i~0 20), 97087#(= main_~i~0 23), 97086#(= main_~i~0 22), 97089#(= main_~i~0 25), 97088#(= main_~i~0 24), 97091#(= main_~i~0 27), 97090#(= main_~i~0 26), 97093#(= main_~i~0 29), 97092#(= main_~i~0 28), 97095#(= main_~i~0 31), 97094#(= main_~i~0 30), 97097#(= main_~i~0 33), 97096#(= main_~i~0 32), 97099#(= main_~i~0 35), 97098#(= main_~i~0 34), 97101#(= main_~i~0 37), 97100#(= main_~i~0 36), 97103#(= main_~i~0 39), 97102#(= main_~i~0 38), 97105#(= main_~i~0 41), 97104#(= main_~i~0 40), 97107#(= main_~i~0 43), 97106#(= main_~i~0 42), 97109#(= main_~i~0 45), 97108#(= main_~i~0 44), 97111#(= main_~i~0 47), 97110#(= main_~i~0 46), 97113#(= main_~i~0 49), 97112#(= main_~i~0 48), 97115#(= main_~i~0 51), 97114#(= main_~i~0 50), 97117#(= main_~i~0 53), 97116#(= main_~i~0 52), 97119#(= main_~i~0 55), 97118#(= main_~i~0 54), 97121#(= main_~i~0 57), 97120#(= main_~i~0 56), 97123#(= main_~i~0 59), 97122#(= main_~i~0 58), 97125#(= main_~i~0 61), 97124#(= main_~i~0 60), 97127#(= main_~i~0 63), 97126#(= main_~i~0 62), 97129#(= main_~i~0 65), 97128#(= main_~i~0 64), 97131#(= main_~i~0 67), 97130#(= main_~i~0 66), 97133#(= main_~i~0 69), 97132#(= main_~i~0 68), 97135#(= main_~i~0 71), 97134#(= main_~i~0 70), 97137#(= main_~i~0 73), 97136#(= main_~i~0 72), 97139#(= main_~i~0 75), 97138#(= main_~i~0 74), 97141#(= main_~i~0 77), 97140#(= main_~i~0 76), 97143#(= main_~i~0 79), 97142#(= main_~i~0 78), 97145#(= main_~i~0 81), 97144#(= main_~i~0 80), 97147#(= main_~i~0 83), 97146#(= main_~i~0 82), 97149#(= main_~i~0 85), 97148#(= main_~i~0 84), 97151#(= main_~i~0 87), 97150#(= main_~i~0 86), 97153#(= main_~i~0 89), 97152#(= main_~i~0 88), 97155#(= main_~i~0 91), 97154#(= main_~i~0 90), 97157#(= main_~i~0 93), 97156#(= main_~i~0 92), 97159#(= main_~i~0 95), 97158#(= main_~i~0 94), 97161#(= main_~i~0 97), 97160#(= main_~i~0 96), 97163#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 97162#(= main_~i~0 98)] [2018-04-13 15:51:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 19701 backedges. 0 proven. 19701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:09,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-04-13 15:51:09,513 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-04-13 15:51:09,513 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=10002, Unknown=0, NotChecked=0, Total=10302 [2018-04-13 15:51:09,513 INFO L87 Difference]: Start difference. First operand 904 states and 905 transitions. Second operand 102 states. [2018-04-13 15:51:21,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:51:21,913 INFO L93 Difference]: Finished difference Result 913 states and 914 transitions. [2018-04-13 15:51:21,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-04-13 15:51:21,913 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 404 [2018-04-13 15:51:21,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:51:21,914 INFO L225 Difference]: With dead ends: 913 [2018-04-13 15:51:21,914 INFO L226 Difference]: Without dead ends: 913 [2018-04-13 15:51:21,915 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=300, Invalid=10002, Unknown=0, NotChecked=0, Total=10302 [2018-04-13 15:51:21,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2018-04-13 15:51:21,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 913. [2018-04-13 15:51:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2018-04-13 15:51:21,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 914 transitions. [2018-04-13 15:51:21,917 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 914 transitions. Word has length 404 [2018-04-13 15:51:21,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:51:21,918 INFO L459 AbstractCegarLoop]: Abstraction has 913 states and 914 transitions. [2018-04-13 15:51:21,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 102 states. [2018-04-13 15:51:21,918 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 914 transitions. [2018-04-13 15:51:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-04-13 15:51:21,919 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:51:21,919 INFO L355 BasicCegarLoop]: trace histogram [101, 101, 100, 100, 1, 1, 1, 1, 1, 1] [2018-04-13 15:51:21,919 INFO L408 AbstractCegarLoop]: === Iteration 101 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:51:21,919 INFO L82 PathProgramCache]: Analyzing trace with hash -747405484, now seen corresponding path program 100 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:51:21,921 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:51:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:51:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:51:24,117 INFO L134 CoverageAnalysis]: Checked inductivity of 20100 backedges. 0 proven. 20100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:24,133 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:51:24,133 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [102] total 102 [2018-04-13 15:51:24,133 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:51:24,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:24,133 INFO L182 omatonBuilderFactory]: Interpolants [99073#(= main_~i~0 79), 99072#(= main_~i~0 78), 99075#(= main_~i~0 81), 99074#(= main_~i~0 80), 99077#(= main_~i~0 83), 99076#(= main_~i~0 82), 99079#(= main_~i~0 85), 99078#(= main_~i~0 84), 99081#(= main_~i~0 87), 99080#(= main_~i~0 86), 99083#(= main_~i~0 89), 99082#(= main_~i~0 88), 99085#(= main_~i~0 91), 99084#(= main_~i~0 90), 99087#(= main_~i~0 93), 99086#(= main_~i~0 92), 99089#(= main_~i~0 95), 99088#(= main_~i~0 94), 99091#(= main_~i~0 97), 99090#(= main_~i~0 96), 99093#(= main_~i~0 99), 99092#(= main_~i~0 98), 99094#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 98991#false, 98990#true, 98995#(= main_~i~0 1), 98994#(= main_~i~0 0), 98997#(= main_~i~0 3), 98996#(= main_~i~0 2), 98999#(= main_~i~0 5), 98998#(= main_~i~0 4), 99001#(= main_~i~0 7), 99000#(= main_~i~0 6), 99003#(= main_~i~0 9), 99002#(= main_~i~0 8), 99005#(= main_~i~0 11), 99004#(= main_~i~0 10), 99007#(= main_~i~0 13), 99006#(= main_~i~0 12), 99009#(= main_~i~0 15), 99008#(= main_~i~0 14), 99011#(= main_~i~0 17), 99010#(= main_~i~0 16), 99013#(= main_~i~0 19), 99012#(= main_~i~0 18), 99015#(= main_~i~0 21), 99014#(= main_~i~0 20), 99017#(= main_~i~0 23), 99016#(= main_~i~0 22), 99019#(= main_~i~0 25), 99018#(= main_~i~0 24), 99021#(= main_~i~0 27), 99020#(= main_~i~0 26), 99023#(= main_~i~0 29), 99022#(= main_~i~0 28), 99025#(= main_~i~0 31), 99024#(= main_~i~0 30), 99027#(= main_~i~0 33), 99026#(= main_~i~0 32), 99029#(= main_~i~0 35), 99028#(= main_~i~0 34), 99031#(= main_~i~0 37), 99030#(= main_~i~0 36), 99033#(= main_~i~0 39), 99032#(= main_~i~0 38), 99035#(= main_~i~0 41), 99034#(= main_~i~0 40), 99037#(= main_~i~0 43), 99036#(= main_~i~0 42), 99039#(= main_~i~0 45), 99038#(= main_~i~0 44), 99041#(= main_~i~0 47), 99040#(= main_~i~0 46), 99043#(= main_~i~0 49), 99042#(= main_~i~0 48), 99045#(= main_~i~0 51), 99044#(= main_~i~0 50), 99047#(= main_~i~0 53), 99046#(= main_~i~0 52), 99049#(= main_~i~0 55), 99048#(= main_~i~0 54), 99051#(= main_~i~0 57), 99050#(= main_~i~0 56), 99053#(= main_~i~0 59), 99052#(= main_~i~0 58), 99055#(= main_~i~0 61), 99054#(= main_~i~0 60), 99057#(= main_~i~0 63), 99056#(= main_~i~0 62), 99059#(= main_~i~0 65), 99058#(= main_~i~0 64), 99061#(= main_~i~0 67), 99060#(= main_~i~0 66), 99063#(= main_~i~0 69), 99062#(= main_~i~0 68), 99065#(= main_~i~0 71), 99064#(= main_~i~0 70), 99067#(= main_~i~0 73), 99066#(= main_~i~0 72), 99069#(= main_~i~0 75), 99068#(= main_~i~0 74), 99071#(= main_~i~0 77), 99070#(= main_~i~0 76)] [2018-04-13 15:51:24,134 INFO L134 CoverageAnalysis]: Checked inductivity of 20100 backedges. 0 proven. 20100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:24,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-04-13 15:51:24,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-04-13 15:51:24,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=10203, Unknown=0, NotChecked=0, Total=10506 [2018-04-13 15:51:24,134 INFO L87 Difference]: Start difference. First operand 913 states and 914 transitions. Second operand 103 states. [2018-04-13 15:51:36,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:51:36,818 INFO L93 Difference]: Finished difference Result 922 states and 923 transitions. [2018-04-13 15:51:36,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-04-13 15:51:36,819 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 408 [2018-04-13 15:51:36,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:51:36,819 INFO L225 Difference]: With dead ends: 922 [2018-04-13 15:51:36,819 INFO L226 Difference]: Without dead ends: 922 [2018-04-13 15:51:36,820 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=303, Invalid=10203, Unknown=0, NotChecked=0, Total=10506 [2018-04-13 15:51:36,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2018-04-13 15:51:36,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2018-04-13 15:51:36,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2018-04-13 15:51:36,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 923 transitions. [2018-04-13 15:51:36,823 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 923 transitions. Word has length 408 [2018-04-13 15:51:36,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:51:36,823 INFO L459 AbstractCegarLoop]: Abstraction has 922 states and 923 transitions. [2018-04-13 15:51:36,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-04-13 15:51:36,823 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 923 transitions. [2018-04-13 15:51:36,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2018-04-13 15:51:36,824 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:51:36,824 INFO L355 BasicCegarLoop]: trace histogram [102, 102, 101, 101, 1, 1, 1, 1, 1, 1] [2018-04-13 15:51:36,824 INFO L408 AbstractCegarLoop]: === Iteration 102 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:51:36,824 INFO L82 PathProgramCache]: Analyzing trace with hash -464103091, now seen corresponding path program 101 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 103 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 103 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:51:36,826 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:51:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:51:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:51:39,105 INFO L134 CoverageAnalysis]: Checked inductivity of 20503 backedges. 0 proven. 20503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:39,120 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:51:39,120 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [103] total 103 [2018-04-13 15:51:39,120 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:51:39,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:39,121 INFO L182 omatonBuilderFactory]: Interpolants [100939#true, 100940#false, 100943#(= main_~i~0 0), 100945#(= main_~i~0 2), 100944#(= main_~i~0 1), 100947#(= main_~i~0 4), 100946#(= main_~i~0 3), 100949#(= main_~i~0 6), 100948#(= main_~i~0 5), 100951#(= main_~i~0 8), 100950#(= main_~i~0 7), 100953#(= main_~i~0 10), 100952#(= main_~i~0 9), 100955#(= main_~i~0 12), 100954#(= main_~i~0 11), 100957#(= main_~i~0 14), 100956#(= main_~i~0 13), 100959#(= main_~i~0 16), 100958#(= main_~i~0 15), 100961#(= main_~i~0 18), 100960#(= main_~i~0 17), 100963#(= main_~i~0 20), 100962#(= main_~i~0 19), 100965#(= main_~i~0 22), 100964#(= main_~i~0 21), 100967#(= main_~i~0 24), 100966#(= main_~i~0 23), 100969#(= main_~i~0 26), 100968#(= main_~i~0 25), 100971#(= main_~i~0 28), 100970#(= main_~i~0 27), 100973#(= main_~i~0 30), 100972#(= main_~i~0 29), 100975#(= main_~i~0 32), 100974#(= main_~i~0 31), 100977#(= main_~i~0 34), 100976#(= main_~i~0 33), 100979#(= main_~i~0 36), 100978#(= main_~i~0 35), 100981#(= main_~i~0 38), 100980#(= main_~i~0 37), 100983#(= main_~i~0 40), 100982#(= main_~i~0 39), 100985#(= main_~i~0 42), 100984#(= main_~i~0 41), 100987#(= main_~i~0 44), 100986#(= main_~i~0 43), 100989#(= main_~i~0 46), 100988#(= main_~i~0 45), 100991#(= main_~i~0 48), 100990#(= main_~i~0 47), 100993#(= main_~i~0 50), 100992#(= main_~i~0 49), 100995#(= main_~i~0 52), 100994#(= main_~i~0 51), 100997#(= main_~i~0 54), 100996#(= main_~i~0 53), 100999#(= main_~i~0 56), 100998#(= main_~i~0 55), 101001#(= main_~i~0 58), 101000#(= main_~i~0 57), 101003#(= main_~i~0 60), 101002#(= main_~i~0 59), 101005#(= main_~i~0 62), 101004#(= main_~i~0 61), 101007#(= main_~i~0 64), 101006#(= main_~i~0 63), 101009#(= main_~i~0 66), 101008#(= main_~i~0 65), 101011#(= main_~i~0 68), 101010#(= main_~i~0 67), 101013#(= main_~i~0 70), 101012#(= main_~i~0 69), 101015#(= main_~i~0 72), 101014#(= main_~i~0 71), 101017#(= main_~i~0 74), 101016#(= main_~i~0 73), 101019#(= main_~i~0 76), 101018#(= main_~i~0 75), 101021#(= main_~i~0 78), 101020#(= main_~i~0 77), 101023#(= main_~i~0 80), 101022#(= main_~i~0 79), 101025#(= main_~i~0 82), 101024#(= main_~i~0 81), 101027#(= main_~i~0 84), 101026#(= main_~i~0 83), 101029#(= main_~i~0 86), 101028#(= main_~i~0 85), 101031#(= main_~i~0 88), 101030#(= main_~i~0 87), 101033#(= main_~i~0 90), 101032#(= main_~i~0 89), 101035#(= main_~i~0 92), 101034#(= main_~i~0 91), 101037#(= main_~i~0 94), 101036#(= main_~i~0 93), 101039#(= main_~i~0 96), 101038#(= main_~i~0 95), 101041#(= main_~i~0 98), 101040#(= main_~i~0 97), 101043#(= main_~i~0 100), 101042#(= main_~i~0 99), 101044#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:51:39,122 INFO L134 CoverageAnalysis]: Checked inductivity of 20503 backedges. 0 proven. 20503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:39,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 104 states [2018-04-13 15:51:39,122 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2018-04-13 15:51:39,123 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=10406, Unknown=0, NotChecked=0, Total=10712 [2018-04-13 15:51:39,123 INFO L87 Difference]: Start difference. First operand 922 states and 923 transitions. Second operand 104 states. [2018-04-13 15:51:51,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:51:51,977 INFO L93 Difference]: Finished difference Result 931 states and 932 transitions. [2018-04-13 15:51:51,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2018-04-13 15:51:51,977 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 412 [2018-04-13 15:51:51,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:51:51,978 INFO L225 Difference]: With dead ends: 931 [2018-04-13 15:51:51,978 INFO L226 Difference]: Without dead ends: 931 [2018-04-13 15:51:51,978 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=306, Invalid=10406, Unknown=0, NotChecked=0, Total=10712 [2018-04-13 15:51:51,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2018-04-13 15:51:51,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2018-04-13 15:51:51,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2018-04-13 15:51:51,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 932 transitions. [2018-04-13 15:51:51,982 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 932 transitions. Word has length 412 [2018-04-13 15:51:51,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:51:51,982 INFO L459 AbstractCegarLoop]: Abstraction has 931 states and 932 transitions. [2018-04-13 15:51:51,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 104 states. [2018-04-13 15:51:51,982 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 932 transitions. [2018-04-13 15:51:51,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2018-04-13 15:51:51,983 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:51:51,984 INFO L355 BasicCegarLoop]: trace histogram [103, 103, 102, 102, 1, 1, 1, 1, 1, 1] [2018-04-13 15:51:51,984 INFO L408 AbstractCegarLoop]: === Iteration 103 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:51:51,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1277587770, now seen corresponding path program 102 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 104 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:51:51,988 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:51:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:51:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:51:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 20910 backedges. 0 proven. 20910 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:54,293 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:51:54,293 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [104] total 104 [2018-04-13 15:51:54,293 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:51:54,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:54,294 INFO L182 omatonBuilderFactory]: Interpolants [102913#(= main_~i~0 2), 102912#(= main_~i~0 1), 102915#(= main_~i~0 4), 102914#(= main_~i~0 3), 102917#(= main_~i~0 6), 102916#(= main_~i~0 5), 102919#(= main_~i~0 8), 102918#(= main_~i~0 7), 102921#(= main_~i~0 10), 102920#(= main_~i~0 9), 102923#(= main_~i~0 12), 102922#(= main_~i~0 11), 102925#(= main_~i~0 14), 102924#(= main_~i~0 13), 102927#(= main_~i~0 16), 102926#(= main_~i~0 15), 102929#(= main_~i~0 18), 102928#(= main_~i~0 17), 102931#(= main_~i~0 20), 102930#(= main_~i~0 19), 102933#(= main_~i~0 22), 102932#(= main_~i~0 21), 102935#(= main_~i~0 24), 102934#(= main_~i~0 23), 102937#(= main_~i~0 26), 102936#(= main_~i~0 25), 102939#(= main_~i~0 28), 102938#(= main_~i~0 27), 102941#(= main_~i~0 30), 102940#(= main_~i~0 29), 102943#(= main_~i~0 32), 102942#(= main_~i~0 31), 102945#(= main_~i~0 34), 102944#(= main_~i~0 33), 102947#(= main_~i~0 36), 102946#(= main_~i~0 35), 102949#(= main_~i~0 38), 102948#(= main_~i~0 37), 102951#(= main_~i~0 40), 102950#(= main_~i~0 39), 102953#(= main_~i~0 42), 102952#(= main_~i~0 41), 102955#(= main_~i~0 44), 102954#(= main_~i~0 43), 102957#(= main_~i~0 46), 102956#(= main_~i~0 45), 102959#(= main_~i~0 48), 102958#(= main_~i~0 47), 102961#(= main_~i~0 50), 102960#(= main_~i~0 49), 102963#(= main_~i~0 52), 102962#(= main_~i~0 51), 102965#(= main_~i~0 54), 102964#(= main_~i~0 53), 102967#(= main_~i~0 56), 102966#(= main_~i~0 55), 102969#(= main_~i~0 58), 102968#(= main_~i~0 57), 102971#(= main_~i~0 60), 102970#(= main_~i~0 59), 102973#(= main_~i~0 62), 102972#(= main_~i~0 61), 102975#(= main_~i~0 64), 102974#(= main_~i~0 63), 102977#(= main_~i~0 66), 102976#(= main_~i~0 65), 102979#(= main_~i~0 68), 102978#(= main_~i~0 67), 102981#(= main_~i~0 70), 102980#(= main_~i~0 69), 102983#(= main_~i~0 72), 102982#(= main_~i~0 71), 102985#(= main_~i~0 74), 102984#(= main_~i~0 73), 102987#(= main_~i~0 76), 102986#(= main_~i~0 75), 102989#(= main_~i~0 78), 102988#(= main_~i~0 77), 102991#(= main_~i~0 80), 102990#(= main_~i~0 79), 102993#(= main_~i~0 82), 102992#(= main_~i~0 81), 102995#(= main_~i~0 84), 102994#(= main_~i~0 83), 102997#(= main_~i~0 86), 102996#(= main_~i~0 85), 102999#(= main_~i~0 88), 102998#(= main_~i~0 87), 103001#(= main_~i~0 90), 103000#(= main_~i~0 89), 103003#(= main_~i~0 92), 103002#(= main_~i~0 91), 103005#(= main_~i~0 94), 103004#(= main_~i~0 93), 103007#(= main_~i~0 96), 103006#(= main_~i~0 95), 103009#(= main_~i~0 98), 103008#(= main_~i~0 97), 103011#(= main_~i~0 100), 103010#(= main_~i~0 99), 103013#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 103012#(= main_~i~0 101), 102907#true, 102908#false, 102911#(= main_~i~0 0)] [2018-04-13 15:51:54,294 INFO L134 CoverageAnalysis]: Checked inductivity of 20910 backedges. 0 proven. 20910 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:51:54,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-04-13 15:51:54,294 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-04-13 15:51:54,295 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=10611, Unknown=0, NotChecked=0, Total=10920 [2018-04-13 15:51:54,295 INFO L87 Difference]: Start difference. First operand 931 states and 932 transitions. Second operand 105 states. [2018-04-13 15:52:07,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:52:07,682 INFO L93 Difference]: Finished difference Result 940 states and 941 transitions. [2018-04-13 15:52:07,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-04-13 15:52:07,683 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 416 [2018-04-13 15:52:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:52:07,683 INFO L225 Difference]: With dead ends: 940 [2018-04-13 15:52:07,683 INFO L226 Difference]: Without dead ends: 940 [2018-04-13 15:52:07,684 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=309, Invalid=10611, Unknown=0, NotChecked=0, Total=10920 [2018-04-13 15:52:07,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2018-04-13 15:52:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 940. [2018-04-13 15:52:07,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2018-04-13 15:52:07,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 941 transitions. [2018-04-13 15:52:07,686 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 941 transitions. Word has length 416 [2018-04-13 15:52:07,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:52:07,687 INFO L459 AbstractCegarLoop]: Abstraction has 940 states and 941 transitions. [2018-04-13 15:52:07,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-04-13 15:52:07,687 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 941 transitions. [2018-04-13 15:52:07,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2018-04-13 15:52:07,688 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:52:07,688 INFO L355 BasicCegarLoop]: trace histogram [104, 104, 103, 103, 1, 1, 1, 1, 1, 1] [2018-04-13 15:52:07,688 INFO L408 AbstractCegarLoop]: === Iteration 104 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:52:07,688 INFO L82 PathProgramCache]: Analyzing trace with hash -77373505, now seen corresponding path program 103 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 105 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 105 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:52:07,690 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:52:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:52:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:52:10,012 INFO L134 CoverageAnalysis]: Checked inductivity of 21321 backedges. 0 proven. 21321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:10,027 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:52:10,027 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [105] total 105 [2018-04-13 15:52:10,027 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:52:10,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:10,028 INFO L182 omatonBuilderFactory]: Interpolants [104961#(= main_~i~0 63), 104960#(= main_~i~0 62), 104963#(= main_~i~0 65), 104962#(= main_~i~0 64), 104965#(= main_~i~0 67), 104964#(= main_~i~0 66), 104967#(= main_~i~0 69), 104966#(= main_~i~0 68), 104969#(= main_~i~0 71), 104968#(= main_~i~0 70), 104971#(= main_~i~0 73), 104970#(= main_~i~0 72), 104973#(= main_~i~0 75), 104972#(= main_~i~0 74), 104975#(= main_~i~0 77), 104974#(= main_~i~0 76), 104977#(= main_~i~0 79), 104976#(= main_~i~0 78), 104979#(= main_~i~0 81), 104978#(= main_~i~0 80), 104981#(= main_~i~0 83), 104980#(= main_~i~0 82), 104983#(= main_~i~0 85), 104982#(= main_~i~0 84), 104985#(= main_~i~0 87), 104984#(= main_~i~0 86), 104987#(= main_~i~0 89), 104986#(= main_~i~0 88), 104989#(= main_~i~0 91), 104988#(= main_~i~0 90), 104991#(= main_~i~0 93), 104990#(= main_~i~0 92), 104993#(= main_~i~0 95), 104992#(= main_~i~0 94), 104995#(= main_~i~0 97), 104994#(= main_~i~0 96), 104997#(= main_~i~0 99), 104996#(= main_~i~0 98), 104999#(= main_~i~0 101), 104998#(= main_~i~0 100), 105001#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 105000#(= main_~i~0 102), 104895#false, 104894#true, 104899#(= main_~i~0 1), 104898#(= main_~i~0 0), 104901#(= main_~i~0 3), 104900#(= main_~i~0 2), 104903#(= main_~i~0 5), 104902#(= main_~i~0 4), 104905#(= main_~i~0 7), 104904#(= main_~i~0 6), 104907#(= main_~i~0 9), 104906#(= main_~i~0 8), 104909#(= main_~i~0 11), 104908#(= main_~i~0 10), 104911#(= main_~i~0 13), 104910#(= main_~i~0 12), 104913#(= main_~i~0 15), 104912#(= main_~i~0 14), 104915#(= main_~i~0 17), 104914#(= main_~i~0 16), 104917#(= main_~i~0 19), 104916#(= main_~i~0 18), 104919#(= main_~i~0 21), 104918#(= main_~i~0 20), 104921#(= main_~i~0 23), 104920#(= main_~i~0 22), 104923#(= main_~i~0 25), 104922#(= main_~i~0 24), 104925#(= main_~i~0 27), 104924#(= main_~i~0 26), 104927#(= main_~i~0 29), 104926#(= main_~i~0 28), 104929#(= main_~i~0 31), 104928#(= main_~i~0 30), 104931#(= main_~i~0 33), 104930#(= main_~i~0 32), 104933#(= main_~i~0 35), 104932#(= main_~i~0 34), 104935#(= main_~i~0 37), 104934#(= main_~i~0 36), 104937#(= main_~i~0 39), 104936#(= main_~i~0 38), 104939#(= main_~i~0 41), 104938#(= main_~i~0 40), 104941#(= main_~i~0 43), 104940#(= main_~i~0 42), 104943#(= main_~i~0 45), 104942#(= main_~i~0 44), 104945#(= main_~i~0 47), 104944#(= main_~i~0 46), 104947#(= main_~i~0 49), 104946#(= main_~i~0 48), 104949#(= main_~i~0 51), 104948#(= main_~i~0 50), 104951#(= main_~i~0 53), 104950#(= main_~i~0 52), 104953#(= main_~i~0 55), 104952#(= main_~i~0 54), 104955#(= main_~i~0 57), 104954#(= main_~i~0 56), 104957#(= main_~i~0 59), 104956#(= main_~i~0 58), 104959#(= main_~i~0 61), 104958#(= main_~i~0 60)] [2018-04-13 15:52:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 21321 backedges. 0 proven. 21321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:10,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-04-13 15:52:10,028 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-04-13 15:52:10,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=10818, Unknown=0, NotChecked=0, Total=11130 [2018-04-13 15:52:10,029 INFO L87 Difference]: Start difference. First operand 940 states and 941 transitions. Second operand 106 states. [2018-04-13 15:52:23,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:52:23,506 INFO L93 Difference]: Finished difference Result 949 states and 950 transitions. [2018-04-13 15:52:23,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2018-04-13 15:52:23,506 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 420 [2018-04-13 15:52:23,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:52:23,507 INFO L225 Difference]: With dead ends: 949 [2018-04-13 15:52:23,507 INFO L226 Difference]: Without dead ends: 949 [2018-04-13 15:52:23,507 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=312, Invalid=10818, Unknown=0, NotChecked=0, Total=11130 [2018-04-13 15:52:23,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2018-04-13 15:52:23,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 949. [2018-04-13 15:52:23,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2018-04-13 15:52:23,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 950 transitions. [2018-04-13 15:52:23,510 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 950 transitions. Word has length 420 [2018-04-13 15:52:23,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:52:23,511 INFO L459 AbstractCegarLoop]: Abstraction has 949 states and 950 transitions. [2018-04-13 15:52:23,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-04-13 15:52:23,511 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 950 transitions. [2018-04-13 15:52:23,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2018-04-13 15:52:23,512 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:52:23,512 INFO L355 BasicCegarLoop]: trace histogram [105, 105, 104, 104, 1, 1, 1, 1, 1, 1] [2018-04-13 15:52:23,512 INFO L408 AbstractCegarLoop]: === Iteration 105 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:52:23,512 INFO L82 PathProgramCache]: Analyzing trace with hash -684061640, now seen corresponding path program 104 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 106 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:52:23,515 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:52:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:52:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:52:25,856 INFO L134 CoverageAnalysis]: Checked inductivity of 21736 backedges. 0 proven. 21736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:25,871 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:52:25,871 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [106] total 106 [2018-04-13 15:52:25,871 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:52:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:25,872 INFO L182 omatonBuilderFactory]: Interpolants [107008#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 106901#false, 106900#true, 106905#(= main_~i~0 1), 106904#(= main_~i~0 0), 106907#(= main_~i~0 3), 106906#(= main_~i~0 2), 106909#(= main_~i~0 5), 106908#(= main_~i~0 4), 106911#(= main_~i~0 7), 106910#(= main_~i~0 6), 106913#(= main_~i~0 9), 106912#(= main_~i~0 8), 106915#(= main_~i~0 11), 106914#(= main_~i~0 10), 106917#(= main_~i~0 13), 106916#(= main_~i~0 12), 106919#(= main_~i~0 15), 106918#(= main_~i~0 14), 106921#(= main_~i~0 17), 106920#(= main_~i~0 16), 106923#(= main_~i~0 19), 106922#(= main_~i~0 18), 106925#(= main_~i~0 21), 106924#(= main_~i~0 20), 106927#(= main_~i~0 23), 106926#(= main_~i~0 22), 106929#(= main_~i~0 25), 106928#(= main_~i~0 24), 106931#(= main_~i~0 27), 106930#(= main_~i~0 26), 106933#(= main_~i~0 29), 106932#(= main_~i~0 28), 106935#(= main_~i~0 31), 106934#(= main_~i~0 30), 106937#(= main_~i~0 33), 106936#(= main_~i~0 32), 106939#(= main_~i~0 35), 106938#(= main_~i~0 34), 106941#(= main_~i~0 37), 106940#(= main_~i~0 36), 106943#(= main_~i~0 39), 106942#(= main_~i~0 38), 106945#(= main_~i~0 41), 106944#(= main_~i~0 40), 106947#(= main_~i~0 43), 106946#(= main_~i~0 42), 106949#(= main_~i~0 45), 106948#(= main_~i~0 44), 106951#(= main_~i~0 47), 106950#(= main_~i~0 46), 106953#(= main_~i~0 49), 106952#(= main_~i~0 48), 106955#(= main_~i~0 51), 106954#(= main_~i~0 50), 106957#(= main_~i~0 53), 106956#(= main_~i~0 52), 106959#(= main_~i~0 55), 106958#(= main_~i~0 54), 106961#(= main_~i~0 57), 106960#(= main_~i~0 56), 106963#(= main_~i~0 59), 106962#(= main_~i~0 58), 106965#(= main_~i~0 61), 106964#(= main_~i~0 60), 106967#(= main_~i~0 63), 106966#(= main_~i~0 62), 106969#(= main_~i~0 65), 106968#(= main_~i~0 64), 106971#(= main_~i~0 67), 106970#(= main_~i~0 66), 106973#(= main_~i~0 69), 106972#(= main_~i~0 68), 106975#(= main_~i~0 71), 106974#(= main_~i~0 70), 106977#(= main_~i~0 73), 106976#(= main_~i~0 72), 106979#(= main_~i~0 75), 106978#(= main_~i~0 74), 106981#(= main_~i~0 77), 106980#(= main_~i~0 76), 106983#(= main_~i~0 79), 106982#(= main_~i~0 78), 106985#(= main_~i~0 81), 106984#(= main_~i~0 80), 106987#(= main_~i~0 83), 106986#(= main_~i~0 82), 106989#(= main_~i~0 85), 106988#(= main_~i~0 84), 106991#(= main_~i~0 87), 106990#(= main_~i~0 86), 106993#(= main_~i~0 89), 106992#(= main_~i~0 88), 106995#(= main_~i~0 91), 106994#(= main_~i~0 90), 106997#(= main_~i~0 93), 106996#(= main_~i~0 92), 106999#(= main_~i~0 95), 106998#(= main_~i~0 94), 107001#(= main_~i~0 97), 107000#(= main_~i~0 96), 107003#(= main_~i~0 99), 107002#(= main_~i~0 98), 107005#(= main_~i~0 101), 107004#(= main_~i~0 100), 107007#(= main_~i~0 103), 107006#(= main_~i~0 102)] [2018-04-13 15:52:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 21736 backedges. 0 proven. 21736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:25,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 107 states [2018-04-13 15:52:25,873 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2018-04-13 15:52:25,873 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=11027, Unknown=0, NotChecked=0, Total=11342 [2018-04-13 15:52:25,873 INFO L87 Difference]: Start difference. First operand 949 states and 950 transitions. Second operand 107 states. [2018-04-13 15:52:39,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:52:39,548 INFO L93 Difference]: Finished difference Result 958 states and 959 transitions. [2018-04-13 15:52:39,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2018-04-13 15:52:39,548 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 424 [2018-04-13 15:52:39,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:52:39,548 INFO L225 Difference]: With dead ends: 958 [2018-04-13 15:52:39,549 INFO L226 Difference]: Without dead ends: 958 [2018-04-13 15:52:39,549 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=315, Invalid=11027, Unknown=0, NotChecked=0, Total=11342 [2018-04-13 15:52:39,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2018-04-13 15:52:39,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 958. [2018-04-13 15:52:39,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 958 states. [2018-04-13 15:52:39,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 959 transitions. [2018-04-13 15:52:39,552 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 959 transitions. Word has length 424 [2018-04-13 15:52:39,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:52:39,552 INFO L459 AbstractCegarLoop]: Abstraction has 958 states and 959 transitions. [2018-04-13 15:52:39,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 107 states. [2018-04-13 15:52:39,552 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 959 transitions. [2018-04-13 15:52:39,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2018-04-13 15:52:39,553 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:52:39,553 INFO L355 BasicCegarLoop]: trace histogram [106, 106, 105, 105, 1, 1, 1, 1, 1, 1] [2018-04-13 15:52:39,553 INFO L408 AbstractCegarLoop]: === Iteration 106 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:52:39,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1451480113, now seen corresponding path program 105 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:52:39,555 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:52:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:52:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:52:41,942 INFO L134 CoverageAnalysis]: Checked inductivity of 22155 backedges. 0 proven. 22155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:41,957 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:52:41,958 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [107] total 107 [2018-04-13 15:52:41,958 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:52:41,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:41,958 INFO L182 omatonBuilderFactory]: Interpolants [108925#true, 108926#false, 108929#(= main_~i~0 0), 108931#(= main_~i~0 2), 108930#(= main_~i~0 1), 108933#(= main_~i~0 4), 108932#(= main_~i~0 3), 108935#(= main_~i~0 6), 108934#(= main_~i~0 5), 108937#(= main_~i~0 8), 108936#(= main_~i~0 7), 108939#(= main_~i~0 10), 108938#(= main_~i~0 9), 108941#(= main_~i~0 12), 108940#(= main_~i~0 11), 108943#(= main_~i~0 14), 108942#(= main_~i~0 13), 108945#(= main_~i~0 16), 108944#(= main_~i~0 15), 108947#(= main_~i~0 18), 108946#(= main_~i~0 17), 108949#(= main_~i~0 20), 108948#(= main_~i~0 19), 108951#(= main_~i~0 22), 108950#(= main_~i~0 21), 108953#(= main_~i~0 24), 108952#(= main_~i~0 23), 108955#(= main_~i~0 26), 108954#(= main_~i~0 25), 108957#(= main_~i~0 28), 108956#(= main_~i~0 27), 108959#(= main_~i~0 30), 108958#(= main_~i~0 29), 108961#(= main_~i~0 32), 108960#(= main_~i~0 31), 108963#(= main_~i~0 34), 108962#(= main_~i~0 33), 108965#(= main_~i~0 36), 108964#(= main_~i~0 35), 108967#(= main_~i~0 38), 108966#(= main_~i~0 37), 108969#(= main_~i~0 40), 108968#(= main_~i~0 39), 108971#(= main_~i~0 42), 108970#(= main_~i~0 41), 108973#(= main_~i~0 44), 108972#(= main_~i~0 43), 108975#(= main_~i~0 46), 108974#(= main_~i~0 45), 108977#(= main_~i~0 48), 108976#(= main_~i~0 47), 108979#(= main_~i~0 50), 108978#(= main_~i~0 49), 108981#(= main_~i~0 52), 108980#(= main_~i~0 51), 108983#(= main_~i~0 54), 108982#(= main_~i~0 53), 108985#(= main_~i~0 56), 108984#(= main_~i~0 55), 108987#(= main_~i~0 58), 108986#(= main_~i~0 57), 108989#(= main_~i~0 60), 108988#(= main_~i~0 59), 108991#(= main_~i~0 62), 108990#(= main_~i~0 61), 108993#(= main_~i~0 64), 108992#(= main_~i~0 63), 108995#(= main_~i~0 66), 108994#(= main_~i~0 65), 108997#(= main_~i~0 68), 108996#(= main_~i~0 67), 108999#(= main_~i~0 70), 108998#(= main_~i~0 69), 109001#(= main_~i~0 72), 109000#(= main_~i~0 71), 109003#(= main_~i~0 74), 109002#(= main_~i~0 73), 109005#(= main_~i~0 76), 109004#(= main_~i~0 75), 109007#(= main_~i~0 78), 109006#(= main_~i~0 77), 109009#(= main_~i~0 80), 109008#(= main_~i~0 79), 109011#(= main_~i~0 82), 109010#(= main_~i~0 81), 109013#(= main_~i~0 84), 109012#(= main_~i~0 83), 109015#(= main_~i~0 86), 109014#(= main_~i~0 85), 109017#(= main_~i~0 88), 109016#(= main_~i~0 87), 109019#(= main_~i~0 90), 109018#(= main_~i~0 89), 109021#(= main_~i~0 92), 109020#(= main_~i~0 91), 109023#(= main_~i~0 94), 109022#(= main_~i~0 93), 109025#(= main_~i~0 96), 109024#(= main_~i~0 95), 109027#(= main_~i~0 98), 109026#(= main_~i~0 97), 109029#(= main_~i~0 100), 109028#(= main_~i~0 99), 109031#(= main_~i~0 102), 109030#(= main_~i~0 101), 109033#(= main_~i~0 104), 109032#(= main_~i~0 103), 109034#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:52:41,959 INFO L134 CoverageAnalysis]: Checked inductivity of 22155 backedges. 0 proven. 22155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:41,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 108 states [2018-04-13 15:52:41,959 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2018-04-13 15:52:41,959 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=11238, Unknown=0, NotChecked=0, Total=11556 [2018-04-13 15:52:41,959 INFO L87 Difference]: Start difference. First operand 958 states and 959 transitions. Second operand 108 states. [2018-04-13 15:52:55,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:52:55,978 INFO L93 Difference]: Finished difference Result 967 states and 968 transitions. [2018-04-13 15:52:55,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-04-13 15:52:55,978 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 428 [2018-04-13 15:52:55,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:52:55,979 INFO L225 Difference]: With dead ends: 967 [2018-04-13 15:52:55,979 INFO L226 Difference]: Without dead ends: 967 [2018-04-13 15:52:55,979 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=318, Invalid=11238, Unknown=0, NotChecked=0, Total=11556 [2018-04-13 15:52:55,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2018-04-13 15:52:55,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 967. [2018-04-13 15:52:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2018-04-13 15:52:55,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 968 transitions. [2018-04-13 15:52:55,984 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 968 transitions. Word has length 428 [2018-04-13 15:52:55,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:52:55,985 INFO L459 AbstractCegarLoop]: Abstraction has 967 states and 968 transitions. [2018-04-13 15:52:55,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 108 states. [2018-04-13 15:52:55,985 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 968 transitions. [2018-04-13 15:52:55,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2018-04-13 15:52:55,985 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:52:55,986 INFO L355 BasicCegarLoop]: trace histogram [107, 107, 106, 106, 1, 1, 1, 1, 1, 1] [2018-04-13 15:52:55,986 INFO L408 AbstractCegarLoop]: === Iteration 107 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:52:55,986 INFO L82 PathProgramCache]: Analyzing trace with hash 189200298, now seen corresponding path program 106 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 108 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:52:55,988 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:52:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:52:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:52:58,420 INFO L134 CoverageAnalysis]: Checked inductivity of 22578 backedges. 0 proven. 22578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:58,435 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:52:58,435 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [108] total 108 [2018-04-13 15:52:58,435 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:52:58,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:58,435 INFO L182 omatonBuilderFactory]: Interpolants [110969#true, 110970#false, 110973#(= main_~i~0 0), 110975#(= main_~i~0 2), 110974#(= main_~i~0 1), 110977#(= main_~i~0 4), 110976#(= main_~i~0 3), 110979#(= main_~i~0 6), 110978#(= main_~i~0 5), 110981#(= main_~i~0 8), 110980#(= main_~i~0 7), 110983#(= main_~i~0 10), 110982#(= main_~i~0 9), 110985#(= main_~i~0 12), 110984#(= main_~i~0 11), 110987#(= main_~i~0 14), 110986#(= main_~i~0 13), 110989#(= main_~i~0 16), 110988#(= main_~i~0 15), 110991#(= main_~i~0 18), 110990#(= main_~i~0 17), 110993#(= main_~i~0 20), 110992#(= main_~i~0 19), 110995#(= main_~i~0 22), 110994#(= main_~i~0 21), 110997#(= main_~i~0 24), 110996#(= main_~i~0 23), 110999#(= main_~i~0 26), 110998#(= main_~i~0 25), 111001#(= main_~i~0 28), 111000#(= main_~i~0 27), 111003#(= main_~i~0 30), 111002#(= main_~i~0 29), 111005#(= main_~i~0 32), 111004#(= main_~i~0 31), 111007#(= main_~i~0 34), 111006#(= main_~i~0 33), 111009#(= main_~i~0 36), 111008#(= main_~i~0 35), 111011#(= main_~i~0 38), 111010#(= main_~i~0 37), 111013#(= main_~i~0 40), 111012#(= main_~i~0 39), 111015#(= main_~i~0 42), 111014#(= main_~i~0 41), 111017#(= main_~i~0 44), 111016#(= main_~i~0 43), 111019#(= main_~i~0 46), 111018#(= main_~i~0 45), 111021#(= main_~i~0 48), 111020#(= main_~i~0 47), 111023#(= main_~i~0 50), 111022#(= main_~i~0 49), 111025#(= main_~i~0 52), 111024#(= main_~i~0 51), 111027#(= main_~i~0 54), 111026#(= main_~i~0 53), 111029#(= main_~i~0 56), 111028#(= main_~i~0 55), 111031#(= main_~i~0 58), 111030#(= main_~i~0 57), 111033#(= main_~i~0 60), 111032#(= main_~i~0 59), 111035#(= main_~i~0 62), 111034#(= main_~i~0 61), 111037#(= main_~i~0 64), 111036#(= main_~i~0 63), 111039#(= main_~i~0 66), 111038#(= main_~i~0 65), 111041#(= main_~i~0 68), 111040#(= main_~i~0 67), 111043#(= main_~i~0 70), 111042#(= main_~i~0 69), 111045#(= main_~i~0 72), 111044#(= main_~i~0 71), 111047#(= main_~i~0 74), 111046#(= main_~i~0 73), 111049#(= main_~i~0 76), 111048#(= main_~i~0 75), 111051#(= main_~i~0 78), 111050#(= main_~i~0 77), 111053#(= main_~i~0 80), 111052#(= main_~i~0 79), 111055#(= main_~i~0 82), 111054#(= main_~i~0 81), 111057#(= main_~i~0 84), 111056#(= main_~i~0 83), 111059#(= main_~i~0 86), 111058#(= main_~i~0 85), 111061#(= main_~i~0 88), 111060#(= main_~i~0 87), 111063#(= main_~i~0 90), 111062#(= main_~i~0 89), 111065#(= main_~i~0 92), 111064#(= main_~i~0 91), 111067#(= main_~i~0 94), 111066#(= main_~i~0 93), 111069#(= main_~i~0 96), 111068#(= main_~i~0 95), 111071#(= main_~i~0 98), 111070#(= main_~i~0 97), 111073#(= main_~i~0 100), 111072#(= main_~i~0 99), 111075#(= main_~i~0 102), 111074#(= main_~i~0 101), 111077#(= main_~i~0 104), 111076#(= main_~i~0 103), 111079#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 111078#(= main_~i~0 105)] [2018-04-13 15:52:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 22578 backedges. 0 proven. 22578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:52:58,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-04-13 15:52:58,436 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-04-13 15:52:58,437 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=11451, Unknown=0, NotChecked=0, Total=11772 [2018-04-13 15:52:58,437 INFO L87 Difference]: Start difference. First operand 967 states and 968 transitions. Second operand 109 states. [2018-04-13 15:53:12,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:53:12,843 INFO L93 Difference]: Finished difference Result 976 states and 977 transitions. [2018-04-13 15:53:12,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2018-04-13 15:53:12,844 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 432 [2018-04-13 15:53:12,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:53:12,844 INFO L225 Difference]: With dead ends: 976 [2018-04-13 15:53:12,844 INFO L226 Difference]: Without dead ends: 976 [2018-04-13 15:53:12,845 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=321, Invalid=11451, Unknown=0, NotChecked=0, Total=11772 [2018-04-13 15:53:12,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2018-04-13 15:53:12,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 976. [2018-04-13 15:53:12,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 976 states. [2018-04-13 15:53:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 977 transitions. [2018-04-13 15:53:12,847 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 977 transitions. Word has length 432 [2018-04-13 15:53:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:53:12,848 INFO L459 AbstractCegarLoop]: Abstraction has 976 states and 977 transitions. [2018-04-13 15:53:12,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-04-13 15:53:12,848 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 977 transitions. [2018-04-13 15:53:12,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2018-04-13 15:53:12,849 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:53:12,849 INFO L355 BasicCegarLoop]: trace histogram [108, 108, 107, 107, 1, 1, 1, 1, 1, 1] [2018-04-13 15:53:12,849 INFO L408 AbstractCegarLoop]: === Iteration 108 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:53:12,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1704347997, now seen corresponding path program 107 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 109 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:53:12,851 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:53:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:53:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:53:15,337 INFO L134 CoverageAnalysis]: Checked inductivity of 23005 backedges. 0 proven. 23005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:53:15,352 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:53:15,352 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [109] total 109 [2018-04-13 15:53:15,388 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:53:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:53:15,388 INFO L182 omatonBuilderFactory]: Interpolants [113033#false, 113032#true, 113037#(= main_~i~0 1), 113036#(= main_~i~0 0), 113039#(= main_~i~0 3), 113038#(= main_~i~0 2), 113041#(= main_~i~0 5), 113040#(= main_~i~0 4), 113043#(= main_~i~0 7), 113042#(= main_~i~0 6), 113045#(= main_~i~0 9), 113044#(= main_~i~0 8), 113047#(= main_~i~0 11), 113046#(= main_~i~0 10), 113049#(= main_~i~0 13), 113048#(= main_~i~0 12), 113051#(= main_~i~0 15), 113050#(= main_~i~0 14), 113053#(= main_~i~0 17), 113052#(= main_~i~0 16), 113055#(= main_~i~0 19), 113054#(= main_~i~0 18), 113057#(= main_~i~0 21), 113056#(= main_~i~0 20), 113059#(= main_~i~0 23), 113058#(= main_~i~0 22), 113061#(= main_~i~0 25), 113060#(= main_~i~0 24), 113063#(= main_~i~0 27), 113062#(= main_~i~0 26), 113065#(= main_~i~0 29), 113064#(= main_~i~0 28), 113067#(= main_~i~0 31), 113066#(= main_~i~0 30), 113069#(= main_~i~0 33), 113068#(= main_~i~0 32), 113071#(= main_~i~0 35), 113070#(= main_~i~0 34), 113073#(= main_~i~0 37), 113072#(= main_~i~0 36), 113075#(= main_~i~0 39), 113074#(= main_~i~0 38), 113077#(= main_~i~0 41), 113076#(= main_~i~0 40), 113079#(= main_~i~0 43), 113078#(= main_~i~0 42), 113081#(= main_~i~0 45), 113080#(= main_~i~0 44), 113083#(= main_~i~0 47), 113082#(= main_~i~0 46), 113085#(= main_~i~0 49), 113084#(= main_~i~0 48), 113087#(= main_~i~0 51), 113086#(= main_~i~0 50), 113089#(= main_~i~0 53), 113088#(= main_~i~0 52), 113091#(= main_~i~0 55), 113090#(= main_~i~0 54), 113093#(= main_~i~0 57), 113092#(= main_~i~0 56), 113095#(= main_~i~0 59), 113094#(= main_~i~0 58), 113097#(= main_~i~0 61), 113096#(= main_~i~0 60), 113099#(= main_~i~0 63), 113098#(= main_~i~0 62), 113101#(= main_~i~0 65), 113100#(= main_~i~0 64), 113103#(= main_~i~0 67), 113102#(= main_~i~0 66), 113105#(= main_~i~0 69), 113104#(= main_~i~0 68), 113107#(= main_~i~0 71), 113106#(= main_~i~0 70), 113109#(= main_~i~0 73), 113108#(= main_~i~0 72), 113111#(= main_~i~0 75), 113110#(= main_~i~0 74), 113113#(= main_~i~0 77), 113112#(= main_~i~0 76), 113115#(= main_~i~0 79), 113114#(= main_~i~0 78), 113117#(= main_~i~0 81), 113116#(= main_~i~0 80), 113119#(= main_~i~0 83), 113118#(= main_~i~0 82), 113121#(= main_~i~0 85), 113120#(= main_~i~0 84), 113123#(= main_~i~0 87), 113122#(= main_~i~0 86), 113125#(= main_~i~0 89), 113124#(= main_~i~0 88), 113127#(= main_~i~0 91), 113126#(= main_~i~0 90), 113129#(= main_~i~0 93), 113128#(= main_~i~0 92), 113131#(= main_~i~0 95), 113130#(= main_~i~0 94), 113133#(= main_~i~0 97), 113132#(= main_~i~0 96), 113135#(= main_~i~0 99), 113134#(= main_~i~0 98), 113137#(= main_~i~0 101), 113136#(= main_~i~0 100), 113139#(= main_~i~0 103), 113138#(= main_~i~0 102), 113141#(= main_~i~0 105), 113140#(= main_~i~0 104), 113143#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 113142#(= main_~i~0 106)] [2018-04-13 15:53:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 23005 backedges. 0 proven. 23005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:53:15,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 110 states [2018-04-13 15:53:15,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2018-04-13 15:53:15,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=11666, Unknown=0, NotChecked=0, Total=11990 [2018-04-13 15:53:15,389 INFO L87 Difference]: Start difference. First operand 976 states and 977 transitions. Second operand 110 states. [2018-04-13 15:53:29,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:53:29,799 INFO L93 Difference]: Finished difference Result 985 states and 986 transitions. [2018-04-13 15:53:29,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-04-13 15:53:29,800 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 436 [2018-04-13 15:53:29,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:53:29,800 INFO L225 Difference]: With dead ends: 985 [2018-04-13 15:53:29,800 INFO L226 Difference]: Without dead ends: 985 [2018-04-13 15:53:29,800 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=324, Invalid=11666, Unknown=0, NotChecked=0, Total=11990 [2018-04-13 15:53:29,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2018-04-13 15:53:29,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 985. [2018-04-13 15:53:29,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 985 states. [2018-04-13 15:53:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 986 transitions. [2018-04-13 15:53:29,803 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 986 transitions. Word has length 436 [2018-04-13 15:53:29,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:53:29,803 INFO L459 AbstractCegarLoop]: Abstraction has 985 states and 986 transitions. [2018-04-13 15:53:29,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 110 states. [2018-04-13 15:53:29,803 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 986 transitions. [2018-04-13 15:53:29,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2018-04-13 15:53:29,804 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:53:29,804 INFO L355 BasicCegarLoop]: trace histogram [109, 109, 108, 108, 1, 1, 1, 1, 1, 1] [2018-04-13 15:53:29,804 INFO L408 AbstractCegarLoop]: === Iteration 109 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:53:29,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1269977372, now seen corresponding path program 108 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:53:29,807 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:53:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:53:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:53:32,325 INFO L134 CoverageAnalysis]: Checked inductivity of 23436 backedges. 0 proven. 23436 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:53:32,341 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:53:32,341 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [110] total 110 [2018-04-13 15:53:32,341 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:53:32,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:53:32,341 INFO L182 omatonBuilderFactory]: Interpolants [115201#(= main_~i~0 83), 115200#(= main_~i~0 82), 115203#(= main_~i~0 85), 115202#(= main_~i~0 84), 115205#(= main_~i~0 87), 115204#(= main_~i~0 86), 115207#(= main_~i~0 89), 115206#(= main_~i~0 88), 115209#(= main_~i~0 91), 115208#(= main_~i~0 90), 115211#(= main_~i~0 93), 115210#(= main_~i~0 92), 115213#(= main_~i~0 95), 115212#(= main_~i~0 94), 115215#(= main_~i~0 97), 115214#(= main_~i~0 96), 115217#(= main_~i~0 99), 115216#(= main_~i~0 98), 115219#(= main_~i~0 101), 115218#(= main_~i~0 100), 115221#(= main_~i~0 103), 115220#(= main_~i~0 102), 115223#(= main_~i~0 105), 115222#(= main_~i~0 104), 115225#(= main_~i~0 107), 115224#(= main_~i~0 106), 115226#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 115115#false, 115114#true, 115119#(= main_~i~0 1), 115118#(= main_~i~0 0), 115121#(= main_~i~0 3), 115120#(= main_~i~0 2), 115123#(= main_~i~0 5), 115122#(= main_~i~0 4), 115125#(= main_~i~0 7), 115124#(= main_~i~0 6), 115127#(= main_~i~0 9), 115126#(= main_~i~0 8), 115129#(= main_~i~0 11), 115128#(= main_~i~0 10), 115131#(= main_~i~0 13), 115130#(= main_~i~0 12), 115133#(= main_~i~0 15), 115132#(= main_~i~0 14), 115135#(= main_~i~0 17), 115134#(= main_~i~0 16), 115137#(= main_~i~0 19), 115136#(= main_~i~0 18), 115139#(= main_~i~0 21), 115138#(= main_~i~0 20), 115141#(= main_~i~0 23), 115140#(= main_~i~0 22), 115143#(= main_~i~0 25), 115142#(= main_~i~0 24), 115145#(= main_~i~0 27), 115144#(= main_~i~0 26), 115147#(= main_~i~0 29), 115146#(= main_~i~0 28), 115149#(= main_~i~0 31), 115148#(= main_~i~0 30), 115151#(= main_~i~0 33), 115150#(= main_~i~0 32), 115153#(= main_~i~0 35), 115152#(= main_~i~0 34), 115155#(= main_~i~0 37), 115154#(= main_~i~0 36), 115157#(= main_~i~0 39), 115156#(= main_~i~0 38), 115159#(= main_~i~0 41), 115158#(= main_~i~0 40), 115161#(= main_~i~0 43), 115160#(= main_~i~0 42), 115163#(= main_~i~0 45), 115162#(= main_~i~0 44), 115165#(= main_~i~0 47), 115164#(= main_~i~0 46), 115167#(= main_~i~0 49), 115166#(= main_~i~0 48), 115169#(= main_~i~0 51), 115168#(= main_~i~0 50), 115171#(= main_~i~0 53), 115170#(= main_~i~0 52), 115173#(= main_~i~0 55), 115172#(= main_~i~0 54), 115175#(= main_~i~0 57), 115174#(= main_~i~0 56), 115177#(= main_~i~0 59), 115176#(= main_~i~0 58), 115179#(= main_~i~0 61), 115178#(= main_~i~0 60), 115181#(= main_~i~0 63), 115180#(= main_~i~0 62), 115183#(= main_~i~0 65), 115182#(= main_~i~0 64), 115185#(= main_~i~0 67), 115184#(= main_~i~0 66), 115187#(= main_~i~0 69), 115186#(= main_~i~0 68), 115189#(= main_~i~0 71), 115188#(= main_~i~0 70), 115191#(= main_~i~0 73), 115190#(= main_~i~0 72), 115193#(= main_~i~0 75), 115192#(= main_~i~0 74), 115195#(= main_~i~0 77), 115194#(= main_~i~0 76), 115197#(= main_~i~0 79), 115196#(= main_~i~0 78), 115199#(= main_~i~0 81), 115198#(= main_~i~0 80)] [2018-04-13 15:53:32,342 INFO L134 CoverageAnalysis]: Checked inductivity of 23436 backedges. 0 proven. 23436 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:53:32,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 111 states [2018-04-13 15:53:32,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2018-04-13 15:53:32,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=11883, Unknown=0, NotChecked=0, Total=12210 [2018-04-13 15:53:32,343 INFO L87 Difference]: Start difference. First operand 985 states and 986 transitions. Second operand 111 states. [2018-04-13 15:53:46,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:53:46,978 INFO L93 Difference]: Finished difference Result 994 states and 995 transitions. [2018-04-13 15:53:46,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2018-04-13 15:53:46,979 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 440 [2018-04-13 15:53:46,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:53:46,979 INFO L225 Difference]: With dead ends: 994 [2018-04-13 15:53:46,979 INFO L226 Difference]: Without dead ends: 994 [2018-04-13 15:53:46,980 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=327, Invalid=11883, Unknown=0, NotChecked=0, Total=12210 [2018-04-13 15:53:46,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2018-04-13 15:53:46,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 994. [2018-04-13 15:53:46,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 994 states. [2018-04-13 15:53:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 995 transitions. [2018-04-13 15:53:46,982 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 995 transitions. Word has length 440 [2018-04-13 15:53:46,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:53:46,983 INFO L459 AbstractCegarLoop]: Abstraction has 994 states and 995 transitions. [2018-04-13 15:53:46,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 111 states. [2018-04-13 15:53:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 995 transitions. [2018-04-13 15:53:46,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2018-04-13 15:53:46,984 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:53:46,984 INFO L355 BasicCegarLoop]: trace histogram [110, 110, 109, 109, 1, 1, 1, 1, 1, 1] [2018-04-13 15:53:46,984 INFO L408 AbstractCegarLoop]: === Iteration 110 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:53:46,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1715009771, now seen corresponding path program 109 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 111 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 111 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:53:46,986 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:53:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:53:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:53:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 23871 backedges. 0 proven. 23871 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:53:49,577 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:53:49,577 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [111] total 111 [2018-04-13 15:53:49,577 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:53:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:53:49,578 INFO L182 omatonBuilderFactory]: Interpolants [117249#(= main_~i~0 30), 117248#(= main_~i~0 29), 117251#(= main_~i~0 32), 117250#(= main_~i~0 31), 117253#(= main_~i~0 34), 117252#(= main_~i~0 33), 117255#(= main_~i~0 36), 117254#(= main_~i~0 35), 117257#(= main_~i~0 38), 117256#(= main_~i~0 37), 117259#(= main_~i~0 40), 117258#(= main_~i~0 39), 117261#(= main_~i~0 42), 117260#(= main_~i~0 41), 117263#(= main_~i~0 44), 117262#(= main_~i~0 43), 117265#(= main_~i~0 46), 117264#(= main_~i~0 45), 117267#(= main_~i~0 48), 117266#(= main_~i~0 47), 117269#(= main_~i~0 50), 117268#(= main_~i~0 49), 117271#(= main_~i~0 52), 117270#(= main_~i~0 51), 117273#(= main_~i~0 54), 117272#(= main_~i~0 53), 117275#(= main_~i~0 56), 117274#(= main_~i~0 55), 117277#(= main_~i~0 58), 117276#(= main_~i~0 57), 117279#(= main_~i~0 60), 117278#(= main_~i~0 59), 117281#(= main_~i~0 62), 117280#(= main_~i~0 61), 117283#(= main_~i~0 64), 117282#(= main_~i~0 63), 117285#(= main_~i~0 66), 117284#(= main_~i~0 65), 117287#(= main_~i~0 68), 117286#(= main_~i~0 67), 117289#(= main_~i~0 70), 117288#(= main_~i~0 69), 117291#(= main_~i~0 72), 117290#(= main_~i~0 71), 117293#(= main_~i~0 74), 117292#(= main_~i~0 73), 117295#(= main_~i~0 76), 117294#(= main_~i~0 75), 117297#(= main_~i~0 78), 117296#(= main_~i~0 77), 117299#(= main_~i~0 80), 117298#(= main_~i~0 79), 117301#(= main_~i~0 82), 117300#(= main_~i~0 81), 117303#(= main_~i~0 84), 117302#(= main_~i~0 83), 117305#(= main_~i~0 86), 117304#(= main_~i~0 85), 117307#(= main_~i~0 88), 117306#(= main_~i~0 87), 117309#(= main_~i~0 90), 117308#(= main_~i~0 89), 117311#(= main_~i~0 92), 117310#(= main_~i~0 91), 117313#(= main_~i~0 94), 117312#(= main_~i~0 93), 117315#(= main_~i~0 96), 117314#(= main_~i~0 95), 117317#(= main_~i~0 98), 117316#(= main_~i~0 97), 117319#(= main_~i~0 100), 117318#(= main_~i~0 99), 117321#(= main_~i~0 102), 117320#(= main_~i~0 101), 117323#(= main_~i~0 104), 117322#(= main_~i~0 103), 117325#(= main_~i~0 106), 117324#(= main_~i~0 105), 117327#(= main_~i~0 108), 117326#(= main_~i~0 107), 117328#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 117215#true, 117216#false, 117219#(= main_~i~0 0), 117221#(= main_~i~0 2), 117220#(= main_~i~0 1), 117223#(= main_~i~0 4), 117222#(= main_~i~0 3), 117225#(= main_~i~0 6), 117224#(= main_~i~0 5), 117227#(= main_~i~0 8), 117226#(= main_~i~0 7), 117229#(= main_~i~0 10), 117228#(= main_~i~0 9), 117231#(= main_~i~0 12), 117230#(= main_~i~0 11), 117233#(= main_~i~0 14), 117232#(= main_~i~0 13), 117235#(= main_~i~0 16), 117234#(= main_~i~0 15), 117237#(= main_~i~0 18), 117236#(= main_~i~0 17), 117239#(= main_~i~0 20), 117238#(= main_~i~0 19), 117241#(= main_~i~0 22), 117240#(= main_~i~0 21), 117243#(= main_~i~0 24), 117242#(= main_~i~0 23), 117245#(= main_~i~0 26), 117244#(= main_~i~0 25), 117247#(= main_~i~0 28), 117246#(= main_~i~0 27)] [2018-04-13 15:53:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 23871 backedges. 0 proven. 23871 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:53:49,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-04-13 15:53:49,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-04-13 15:53:49,579 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=12102, Unknown=0, NotChecked=0, Total=12432 [2018-04-13 15:53:49,579 INFO L87 Difference]: Start difference. First operand 994 states and 995 transitions. Second operand 112 states. [2018-04-13 15:54:04,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:54:04,722 INFO L93 Difference]: Finished difference Result 1003 states and 1004 transitions. [2018-04-13 15:54:04,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-04-13 15:54:04,722 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 444 [2018-04-13 15:54:04,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:54:04,723 INFO L225 Difference]: With dead ends: 1003 [2018-04-13 15:54:04,723 INFO L226 Difference]: Without dead ends: 1003 [2018-04-13 15:54:04,723 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=330, Invalid=12102, Unknown=0, NotChecked=0, Total=12432 [2018-04-13 15:54:04,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2018-04-13 15:54:04,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2018-04-13 15:54:04,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2018-04-13 15:54:04,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1004 transitions. [2018-04-13 15:54:04,726 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1004 transitions. Word has length 444 [2018-04-13 15:54:04,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:54:04,726 INFO L459 AbstractCegarLoop]: Abstraction has 1003 states and 1004 transitions. [2018-04-13 15:54:04,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-04-13 15:54:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1004 transitions. [2018-04-13 15:54:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2018-04-13 15:54:04,727 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:54:04,727 INFO L355 BasicCegarLoop]: trace histogram [111, 111, 110, 110, 1, 1, 1, 1, 1, 1] [2018-04-13 15:54:04,727 INFO L408 AbstractCegarLoop]: === Iteration 111 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:54:04,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1037166450, now seen corresponding path program 110 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 112 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:54:04,729 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:54:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:54:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:54:07,314 INFO L134 CoverageAnalysis]: Checked inductivity of 24310 backedges. 0 proven. 24310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:54:07,329 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:54:07,329 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [112] total 112 [2018-04-13 15:54:07,330 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:54:07,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:54:07,330 INFO L182 omatonBuilderFactory]: Interpolants [119335#true, 119336#false, 119339#(= main_~i~0 0), 119341#(= main_~i~0 2), 119340#(= main_~i~0 1), 119343#(= main_~i~0 4), 119342#(= main_~i~0 3), 119345#(= main_~i~0 6), 119344#(= main_~i~0 5), 119347#(= main_~i~0 8), 119346#(= main_~i~0 7), 119349#(= main_~i~0 10), 119348#(= main_~i~0 9), 119351#(= main_~i~0 12), 119350#(= main_~i~0 11), 119353#(= main_~i~0 14), 119352#(= main_~i~0 13), 119355#(= main_~i~0 16), 119354#(= main_~i~0 15), 119357#(= main_~i~0 18), 119356#(= main_~i~0 17), 119359#(= main_~i~0 20), 119358#(= main_~i~0 19), 119361#(= main_~i~0 22), 119360#(= main_~i~0 21), 119363#(= main_~i~0 24), 119362#(= main_~i~0 23), 119365#(= main_~i~0 26), 119364#(= main_~i~0 25), 119367#(= main_~i~0 28), 119366#(= main_~i~0 27), 119369#(= main_~i~0 30), 119368#(= main_~i~0 29), 119371#(= main_~i~0 32), 119370#(= main_~i~0 31), 119373#(= main_~i~0 34), 119372#(= main_~i~0 33), 119375#(= main_~i~0 36), 119374#(= main_~i~0 35), 119377#(= main_~i~0 38), 119376#(= main_~i~0 37), 119379#(= main_~i~0 40), 119378#(= main_~i~0 39), 119381#(= main_~i~0 42), 119380#(= main_~i~0 41), 119383#(= main_~i~0 44), 119382#(= main_~i~0 43), 119385#(= main_~i~0 46), 119384#(= main_~i~0 45), 119387#(= main_~i~0 48), 119386#(= main_~i~0 47), 119389#(= main_~i~0 50), 119388#(= main_~i~0 49), 119391#(= main_~i~0 52), 119390#(= main_~i~0 51), 119393#(= main_~i~0 54), 119392#(= main_~i~0 53), 119395#(= main_~i~0 56), 119394#(= main_~i~0 55), 119397#(= main_~i~0 58), 119396#(= main_~i~0 57), 119399#(= main_~i~0 60), 119398#(= main_~i~0 59), 119401#(= main_~i~0 62), 119400#(= main_~i~0 61), 119403#(= main_~i~0 64), 119402#(= main_~i~0 63), 119405#(= main_~i~0 66), 119404#(= main_~i~0 65), 119407#(= main_~i~0 68), 119406#(= main_~i~0 67), 119409#(= main_~i~0 70), 119408#(= main_~i~0 69), 119411#(= main_~i~0 72), 119410#(= main_~i~0 71), 119413#(= main_~i~0 74), 119412#(= main_~i~0 73), 119415#(= main_~i~0 76), 119414#(= main_~i~0 75), 119417#(= main_~i~0 78), 119416#(= main_~i~0 77), 119419#(= main_~i~0 80), 119418#(= main_~i~0 79), 119421#(= main_~i~0 82), 119420#(= main_~i~0 81), 119423#(= main_~i~0 84), 119422#(= main_~i~0 83), 119425#(= main_~i~0 86), 119424#(= main_~i~0 85), 119427#(= main_~i~0 88), 119426#(= main_~i~0 87), 119429#(= main_~i~0 90), 119428#(= main_~i~0 89), 119431#(= main_~i~0 92), 119430#(= main_~i~0 91), 119433#(= main_~i~0 94), 119432#(= main_~i~0 93), 119435#(= main_~i~0 96), 119434#(= main_~i~0 95), 119437#(= main_~i~0 98), 119436#(= main_~i~0 97), 119439#(= main_~i~0 100), 119438#(= main_~i~0 99), 119441#(= main_~i~0 102), 119440#(= main_~i~0 101), 119443#(= main_~i~0 104), 119442#(= main_~i~0 103), 119445#(= main_~i~0 106), 119444#(= main_~i~0 105), 119447#(= main_~i~0 108), 119446#(= main_~i~0 107), 119449#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 119448#(= main_~i~0 109)] [2018-04-13 15:54:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 24310 backedges. 0 proven. 24310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:54:07,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 113 states [2018-04-13 15:54:07,331 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2018-04-13 15:54:07,331 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=12323, Unknown=0, NotChecked=0, Total=12656 [2018-04-13 15:54:07,331 INFO L87 Difference]: Start difference. First operand 1003 states and 1004 transitions. Second operand 113 states. [2018-04-13 15:54:22,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:54:22,589 INFO L93 Difference]: Finished difference Result 1012 states and 1013 transitions. [2018-04-13 15:54:22,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2018-04-13 15:54:22,589 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 448 [2018-04-13 15:54:22,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:54:22,589 INFO L225 Difference]: With dead ends: 1012 [2018-04-13 15:54:22,589 INFO L226 Difference]: Without dead ends: 1012 [2018-04-13 15:54:22,590 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=333, Invalid=12323, Unknown=0, NotChecked=0, Total=12656 [2018-04-13 15:54:22,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2018-04-13 15:54:22,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2018-04-13 15:54:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1012 states. [2018-04-13 15:54:22,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1013 transitions. [2018-04-13 15:54:22,592 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1013 transitions. Word has length 448 [2018-04-13 15:54:22,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:54:22,592 INFO L459 AbstractCegarLoop]: Abstraction has 1012 states and 1013 transitions. [2018-04-13 15:54:22,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 113 states. [2018-04-13 15:54:22,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1013 transitions. [2018-04-13 15:54:22,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2018-04-13 15:54:22,593 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:54:22,594 INFO L355 BasicCegarLoop]: trace histogram [112, 112, 111, 111, 1, 1, 1, 1, 1, 1] [2018-04-13 15:54:22,594 INFO L408 AbstractCegarLoop]: === Iteration 112 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:54:22,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1431160199, now seen corresponding path program 111 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 113 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 113 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:54:22,596 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:54:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:54:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:54:25,268 INFO L134 CoverageAnalysis]: Checked inductivity of 24753 backedges. 0 proven. 24753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:54:25,283 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:54:25,283 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [113] total 113 [2018-04-13 15:54:25,283 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:54:25,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:54:25,284 INFO L182 omatonBuilderFactory]: Interpolants [121475#false, 121474#true, 121479#(= main_~i~0 1), 121478#(= main_~i~0 0), 121481#(= main_~i~0 3), 121480#(= main_~i~0 2), 121483#(= main_~i~0 5), 121482#(= main_~i~0 4), 121485#(= main_~i~0 7), 121484#(= main_~i~0 6), 121487#(= main_~i~0 9), 121486#(= main_~i~0 8), 121489#(= main_~i~0 11), 121488#(= main_~i~0 10), 121491#(= main_~i~0 13), 121490#(= main_~i~0 12), 121493#(= main_~i~0 15), 121492#(= main_~i~0 14), 121495#(= main_~i~0 17), 121494#(= main_~i~0 16), 121497#(= main_~i~0 19), 121496#(= main_~i~0 18), 121499#(= main_~i~0 21), 121498#(= main_~i~0 20), 121501#(= main_~i~0 23), 121500#(= main_~i~0 22), 121503#(= main_~i~0 25), 121502#(= main_~i~0 24), 121505#(= main_~i~0 27), 121504#(= main_~i~0 26), 121507#(= main_~i~0 29), 121506#(= main_~i~0 28), 121509#(= main_~i~0 31), 121508#(= main_~i~0 30), 121511#(= main_~i~0 33), 121510#(= main_~i~0 32), 121513#(= main_~i~0 35), 121512#(= main_~i~0 34), 121515#(= main_~i~0 37), 121514#(= main_~i~0 36), 121517#(= main_~i~0 39), 121516#(= main_~i~0 38), 121519#(= main_~i~0 41), 121518#(= main_~i~0 40), 121521#(= main_~i~0 43), 121520#(= main_~i~0 42), 121523#(= main_~i~0 45), 121522#(= main_~i~0 44), 121525#(= main_~i~0 47), 121524#(= main_~i~0 46), 121527#(= main_~i~0 49), 121526#(= main_~i~0 48), 121529#(= main_~i~0 51), 121528#(= main_~i~0 50), 121531#(= main_~i~0 53), 121530#(= main_~i~0 52), 121533#(= main_~i~0 55), 121532#(= main_~i~0 54), 121535#(= main_~i~0 57), 121534#(= main_~i~0 56), 121537#(= main_~i~0 59), 121536#(= main_~i~0 58), 121539#(= main_~i~0 61), 121538#(= main_~i~0 60), 121541#(= main_~i~0 63), 121540#(= main_~i~0 62), 121543#(= main_~i~0 65), 121542#(= main_~i~0 64), 121545#(= main_~i~0 67), 121544#(= main_~i~0 66), 121547#(= main_~i~0 69), 121546#(= main_~i~0 68), 121549#(= main_~i~0 71), 121548#(= main_~i~0 70), 121551#(= main_~i~0 73), 121550#(= main_~i~0 72), 121553#(= main_~i~0 75), 121552#(= main_~i~0 74), 121555#(= main_~i~0 77), 121554#(= main_~i~0 76), 121557#(= main_~i~0 79), 121556#(= main_~i~0 78), 121559#(= main_~i~0 81), 121558#(= main_~i~0 80), 121561#(= main_~i~0 83), 121560#(= main_~i~0 82), 121563#(= main_~i~0 85), 121562#(= main_~i~0 84), 121565#(= main_~i~0 87), 121564#(= main_~i~0 86), 121567#(= main_~i~0 89), 121566#(= main_~i~0 88), 121569#(= main_~i~0 91), 121568#(= main_~i~0 90), 121571#(= main_~i~0 93), 121570#(= main_~i~0 92), 121573#(= main_~i~0 95), 121572#(= main_~i~0 94), 121575#(= main_~i~0 97), 121574#(= main_~i~0 96), 121577#(= main_~i~0 99), 121576#(= main_~i~0 98), 121579#(= main_~i~0 101), 121578#(= main_~i~0 100), 121581#(= main_~i~0 103), 121580#(= main_~i~0 102), 121583#(= main_~i~0 105), 121582#(= main_~i~0 104), 121585#(= main_~i~0 107), 121584#(= main_~i~0 106), 121587#(= main_~i~0 109), 121586#(= main_~i~0 108), 121589#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 121588#(= main_~i~0 110)] [2018-04-13 15:54:25,284 INFO L134 CoverageAnalysis]: Checked inductivity of 24753 backedges. 0 proven. 24753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:54:25,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 114 states [2018-04-13 15:54:25,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2018-04-13 15:54:25,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=12546, Unknown=0, NotChecked=0, Total=12882 [2018-04-13 15:54:25,285 INFO L87 Difference]: Start difference. First operand 1012 states and 1013 transitions. Second operand 114 states. [2018-04-13 15:54:40,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:54:40,810 INFO L93 Difference]: Finished difference Result 1021 states and 1022 transitions. [2018-04-13 15:54:40,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-04-13 15:54:40,810 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 452 [2018-04-13 15:54:40,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:54:40,811 INFO L225 Difference]: With dead ends: 1021 [2018-04-13 15:54:40,811 INFO L226 Difference]: Without dead ends: 1021 [2018-04-13 15:54:40,811 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=336, Invalid=12546, Unknown=0, NotChecked=0, Total=12882 [2018-04-13 15:54:40,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2018-04-13 15:54:40,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2018-04-13 15:54:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2018-04-13 15:54:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1022 transitions. [2018-04-13 15:54:40,814 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1022 transitions. Word has length 452 [2018-04-13 15:54:40,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:54:40,814 INFO L459 AbstractCegarLoop]: Abstraction has 1021 states and 1022 transitions. [2018-04-13 15:54:40,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 114 states. [2018-04-13 15:54:40,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1022 transitions. [2018-04-13 15:54:40,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2018-04-13 15:54:40,815 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:54:40,815 INFO L355 BasicCegarLoop]: trace histogram [113, 113, 112, 112, 1, 1, 1, 1, 1, 1] [2018-04-13 15:54:40,815 INFO L408 AbstractCegarLoop]: === Iteration 113 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:54:40,815 INFO L82 PathProgramCache]: Analyzing trace with hash -965980672, now seen corresponding path program 112 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 114 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:54:40,818 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:54:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:54:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:54:43,648 INFO L134 CoverageAnalysis]: Checked inductivity of 25200 backedges. 0 proven. 25200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:54:43,664 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:54:43,664 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [114] total 114 [2018-04-13 15:54:43,664 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:54:43,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:54:43,664 INFO L182 omatonBuilderFactory]: Interpolants [123649#(= main_~i~0 13), 123648#(= main_~i~0 12), 123651#(= main_~i~0 15), 123650#(= main_~i~0 14), 123653#(= main_~i~0 17), 123652#(= main_~i~0 16), 123655#(= main_~i~0 19), 123654#(= main_~i~0 18), 123657#(= main_~i~0 21), 123656#(= main_~i~0 20), 123659#(= main_~i~0 23), 123658#(= main_~i~0 22), 123661#(= main_~i~0 25), 123660#(= main_~i~0 24), 123663#(= main_~i~0 27), 123662#(= main_~i~0 26), 123665#(= main_~i~0 29), 123664#(= main_~i~0 28), 123667#(= main_~i~0 31), 123666#(= main_~i~0 30), 123669#(= main_~i~0 33), 123668#(= main_~i~0 32), 123671#(= main_~i~0 35), 123670#(= main_~i~0 34), 123673#(= main_~i~0 37), 123672#(= main_~i~0 36), 123675#(= main_~i~0 39), 123674#(= main_~i~0 38), 123677#(= main_~i~0 41), 123676#(= main_~i~0 40), 123679#(= main_~i~0 43), 123678#(= main_~i~0 42), 123681#(= main_~i~0 45), 123680#(= main_~i~0 44), 123683#(= main_~i~0 47), 123682#(= main_~i~0 46), 123685#(= main_~i~0 49), 123684#(= main_~i~0 48), 123687#(= main_~i~0 51), 123686#(= main_~i~0 50), 123689#(= main_~i~0 53), 123688#(= main_~i~0 52), 123691#(= main_~i~0 55), 123690#(= main_~i~0 54), 123693#(= main_~i~0 57), 123692#(= main_~i~0 56), 123695#(= main_~i~0 59), 123694#(= main_~i~0 58), 123697#(= main_~i~0 61), 123696#(= main_~i~0 60), 123699#(= main_~i~0 63), 123698#(= main_~i~0 62), 123701#(= main_~i~0 65), 123700#(= main_~i~0 64), 123703#(= main_~i~0 67), 123702#(= main_~i~0 66), 123705#(= main_~i~0 69), 123704#(= main_~i~0 68), 123707#(= main_~i~0 71), 123706#(= main_~i~0 70), 123709#(= main_~i~0 73), 123708#(= main_~i~0 72), 123711#(= main_~i~0 75), 123710#(= main_~i~0 74), 123713#(= main_~i~0 77), 123712#(= main_~i~0 76), 123715#(= main_~i~0 79), 123714#(= main_~i~0 78), 123717#(= main_~i~0 81), 123716#(= main_~i~0 80), 123719#(= main_~i~0 83), 123718#(= main_~i~0 82), 123721#(= main_~i~0 85), 123720#(= main_~i~0 84), 123723#(= main_~i~0 87), 123722#(= main_~i~0 86), 123725#(= main_~i~0 89), 123724#(= main_~i~0 88), 123727#(= main_~i~0 91), 123726#(= main_~i~0 90), 123729#(= main_~i~0 93), 123728#(= main_~i~0 92), 123731#(= main_~i~0 95), 123730#(= main_~i~0 94), 123733#(= main_~i~0 97), 123732#(= main_~i~0 96), 123735#(= main_~i~0 99), 123734#(= main_~i~0 98), 123737#(= main_~i~0 101), 123736#(= main_~i~0 100), 123739#(= main_~i~0 103), 123738#(= main_~i~0 102), 123741#(= main_~i~0 105), 123740#(= main_~i~0 104), 123743#(= main_~i~0 107), 123742#(= main_~i~0 106), 123745#(= main_~i~0 109), 123744#(= main_~i~0 108), 123747#(= main_~i~0 111), 123746#(= main_~i~0 110), 123748#(and (<= 0 main_~i~0) (< main_~i~0 1024)), 123633#false, 123632#true, 123637#(= main_~i~0 1), 123636#(= main_~i~0 0), 123639#(= main_~i~0 3), 123638#(= main_~i~0 2), 123641#(= main_~i~0 5), 123640#(= main_~i~0 4), 123643#(= main_~i~0 7), 123642#(= main_~i~0 6), 123645#(= main_~i~0 9), 123644#(= main_~i~0 8), 123647#(= main_~i~0 11), 123646#(= main_~i~0 10)] [2018-04-13 15:54:43,665 INFO L134 CoverageAnalysis]: Checked inductivity of 25200 backedges. 0 proven. 25200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:54:43,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 115 states [2018-04-13 15:54:43,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2018-04-13 15:54:43,666 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=339, Invalid=12771, Unknown=0, NotChecked=0, Total=13110 [2018-04-13 15:54:43,666 INFO L87 Difference]: Start difference. First operand 1021 states and 1022 transitions. Second operand 115 states. [2018-04-13 15:54:59,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:54:59,488 INFO L93 Difference]: Finished difference Result 1030 states and 1031 transitions. [2018-04-13 15:54:59,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2018-04-13 15:54:59,516 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 456 [2018-04-13 15:54:59,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:54:59,516 INFO L225 Difference]: With dead ends: 1030 [2018-04-13 15:54:59,516 INFO L226 Difference]: Without dead ends: 1030 [2018-04-13 15:54:59,517 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=339, Invalid=12771, Unknown=0, NotChecked=0, Total=13110 [2018-04-13 15:54:59,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2018-04-13 15:54:59,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2018-04-13 15:54:59,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1030 states. [2018-04-13 15:54:59,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1031 transitions. [2018-04-13 15:54:59,520 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1031 transitions. Word has length 456 [2018-04-13 15:54:59,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:54:59,520 INFO L459 AbstractCegarLoop]: Abstraction has 1030 states and 1031 transitions. [2018-04-13 15:54:59,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 115 states. [2018-04-13 15:54:59,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1031 transitions. [2018-04-13 15:54:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2018-04-13 15:54:59,521 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:54:59,521 INFO L355 BasicCegarLoop]: trace histogram [114, 114, 113, 113, 1, 1, 1, 1, 1, 1] [2018-04-13 15:54:59,521 INFO L408 AbstractCegarLoop]: === Iteration 114 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:54:59,521 INFO L82 PathProgramCache]: Analyzing trace with hash -72355335, now seen corresponding path program 113 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 115 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 115 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:54:59,523 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:54:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:55:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 15:55:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 25651 backedges. 0 proven. 25651 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:55:02,489 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 15:55:02,489 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [115] total 115 [2018-04-13 15:55:02,489 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 15:55:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:55:02,490 INFO L182 omatonBuilderFactory]: Interpolants [125809#true, 125810#false, 125813#(= main_~i~0 0), 125815#(= main_~i~0 2), 125814#(= main_~i~0 1), 125817#(= main_~i~0 4), 125816#(= main_~i~0 3), 125819#(= main_~i~0 6), 125818#(= main_~i~0 5), 125821#(= main_~i~0 8), 125820#(= main_~i~0 7), 125823#(= main_~i~0 10), 125822#(= main_~i~0 9), 125825#(= main_~i~0 12), 125824#(= main_~i~0 11), 125827#(= main_~i~0 14), 125826#(= main_~i~0 13), 125829#(= main_~i~0 16), 125828#(= main_~i~0 15), 125831#(= main_~i~0 18), 125830#(= main_~i~0 17), 125833#(= main_~i~0 20), 125832#(= main_~i~0 19), 125835#(= main_~i~0 22), 125834#(= main_~i~0 21), 125837#(= main_~i~0 24), 125836#(= main_~i~0 23), 125839#(= main_~i~0 26), 125838#(= main_~i~0 25), 125841#(= main_~i~0 28), 125840#(= main_~i~0 27), 125843#(= main_~i~0 30), 125842#(= main_~i~0 29), 125845#(= main_~i~0 32), 125844#(= main_~i~0 31), 125847#(= main_~i~0 34), 125846#(= main_~i~0 33), 125849#(= main_~i~0 36), 125848#(= main_~i~0 35), 125851#(= main_~i~0 38), 125850#(= main_~i~0 37), 125853#(= main_~i~0 40), 125852#(= main_~i~0 39), 125855#(= main_~i~0 42), 125854#(= main_~i~0 41), 125857#(= main_~i~0 44), 125856#(= main_~i~0 43), 125859#(= main_~i~0 46), 125858#(= main_~i~0 45), 125861#(= main_~i~0 48), 125860#(= main_~i~0 47), 125863#(= main_~i~0 50), 125862#(= main_~i~0 49), 125865#(= main_~i~0 52), 125864#(= main_~i~0 51), 125867#(= main_~i~0 54), 125866#(= main_~i~0 53), 125869#(= main_~i~0 56), 125868#(= main_~i~0 55), 125871#(= main_~i~0 58), 125870#(= main_~i~0 57), 125873#(= main_~i~0 60), 125872#(= main_~i~0 59), 125875#(= main_~i~0 62), 125874#(= main_~i~0 61), 125877#(= main_~i~0 64), 125876#(= main_~i~0 63), 125879#(= main_~i~0 66), 125878#(= main_~i~0 65), 125881#(= main_~i~0 68), 125880#(= main_~i~0 67), 125883#(= main_~i~0 70), 125882#(= main_~i~0 69), 125885#(= main_~i~0 72), 125884#(= main_~i~0 71), 125887#(= main_~i~0 74), 125886#(= main_~i~0 73), 125889#(= main_~i~0 76), 125888#(= main_~i~0 75), 125891#(= main_~i~0 78), 125890#(= main_~i~0 77), 125893#(= main_~i~0 80), 125892#(= main_~i~0 79), 125895#(= main_~i~0 82), 125894#(= main_~i~0 81), 125897#(= main_~i~0 84), 125896#(= main_~i~0 83), 125899#(= main_~i~0 86), 125898#(= main_~i~0 85), 125901#(= main_~i~0 88), 125900#(= main_~i~0 87), 125903#(= main_~i~0 90), 125902#(= main_~i~0 89), 125905#(= main_~i~0 92), 125904#(= main_~i~0 91), 125907#(= main_~i~0 94), 125906#(= main_~i~0 93), 125909#(= main_~i~0 96), 125908#(= main_~i~0 95), 125911#(= main_~i~0 98), 125910#(= main_~i~0 97), 125913#(= main_~i~0 100), 125912#(= main_~i~0 99), 125915#(= main_~i~0 102), 125914#(= main_~i~0 101), 125917#(= main_~i~0 104), 125916#(= main_~i~0 103), 125919#(= main_~i~0 106), 125918#(= main_~i~0 105), 125921#(= main_~i~0 108), 125920#(= main_~i~0 107), 125923#(= main_~i~0 110), 125922#(= main_~i~0 109), 125925#(= main_~i~0 112), 125924#(= main_~i~0 111), 125926#(and (<= 0 main_~i~0) (< main_~i~0 1024))] [2018-04-13 15:55:02,491 INFO L134 CoverageAnalysis]: Checked inductivity of 25651 backedges. 0 proven. 25651 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 15:55:02,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 116 states [2018-04-13 15:55:02,491 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2018-04-13 15:55:02,491 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=12998, Unknown=0, NotChecked=0, Total=13340 [2018-04-13 15:55:02,491 INFO L87 Difference]: Start difference. First operand 1030 states and 1031 transitions. Second operand 116 states. [2018-04-13 15:55:18,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 15:55:18,583 INFO L93 Difference]: Finished difference Result 1039 states and 1040 transitions. [2018-04-13 15:55:18,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2018-04-13 15:55:18,584 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 460 [2018-04-13 15:55:18,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 15:55:18,584 INFO L225 Difference]: With dead ends: 1039 [2018-04-13 15:55:18,584 INFO L226 Difference]: Without dead ends: 1039 [2018-04-13 15:55:18,585 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=342, Invalid=12998, Unknown=0, NotChecked=0, Total=13340 [2018-04-13 15:55:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2018-04-13 15:55:18,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2018-04-13 15:55:18,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2018-04-13 15:55:18,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1040 transitions. [2018-04-13 15:55:18,587 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1040 transitions. Word has length 460 [2018-04-13 15:55:18,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 15:55:18,587 INFO L459 AbstractCegarLoop]: Abstraction has 1039 states and 1040 transitions. [2018-04-13 15:55:18,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 116 states. [2018-04-13 15:55:18,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1040 transitions. [2018-04-13 15:55:18,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2018-04-13 15:55:18,589 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 15:55:18,589 INFO L355 BasicCegarLoop]: trace histogram [115, 115, 114, 114, 1, 1, 1, 1, 1, 1] [2018-04-13 15:55:18,589 INFO L408 AbstractCegarLoop]: === Iteration 115 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 15:55:18,589 INFO L82 PathProgramCache]: Analyzing trace with hash -568397454, now seen corresponding path program 114 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 116 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 116 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 15:55:18,591 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 15:55:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-04-13 15:55:20,576 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-13 15:55:20,579 WARN L197 ceAbstractionStarter]: Timeout [2018-04-13 15:55:20,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 03:55:20 BoogieIcfgContainer [2018-04-13 15:55:20,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-13 15:55:20,580 INFO L168 Benchmark]: Toolchain (without parser) took 751435.85 ms. Allocated memory was 404.8 MB in the beginning and 1.1 GB in the end (delta: 700.4 MB). Free memory was 342.8 MB in the beginning and 819.6 MB in the end (delta: -476.8 MB). Peak memory consumption was 223.6 MB. Max. memory is 5.3 GB. [2018-04-13 15:55:20,581 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 404.8 MB. Free memory is still 362.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-13 15:55:20,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.30 ms. Allocated memory is still 404.8 MB. Free memory was 342.8 MB in the beginning and 334.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-04-13 15:55:20,581 INFO L168 Benchmark]: Boogie Preprocessor took 19.22 ms. Allocated memory is still 404.8 MB. Free memory was 334.8 MB in the beginning and 332.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-13 15:55:20,581 INFO L168 Benchmark]: RCFGBuilder took 200.75 ms. Allocated memory was 404.8 MB in the beginning and 591.9 MB in the end (delta: 187.2 MB). Free memory was 332.2 MB in the beginning and 559.9 MB in the end (delta: -227.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 5.3 GB. [2018-04-13 15:55:20,582 INFO L168 Benchmark]: TraceAbstraction took 751055.78 ms. Allocated memory was 591.9 MB in the beginning and 1.1 GB in the end (delta: 513.3 MB). Free memory was 559.9 MB in the beginning and 819.6 MB in the end (delta: -259.7 MB). Peak memory consumption was 253.6 MB. Max. memory is 5.3 GB. [2018-04-13 15:55:20,583 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 404.8 MB. Free memory is still 362.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 157.30 ms. Allocated memory is still 404.8 MB. Free memory was 342.8 MB in the beginning and 334.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 19.22 ms. Allocated memory is still 404.8 MB. Free memory was 334.8 MB in the beginning and 332.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 200.75 ms. Allocated memory was 404.8 MB in the beginning and 591.9 MB in the end (delta: 187.2 MB). Free memory was 332.2 MB in the beginning and 559.9 MB in the end (delta: -227.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 751055.78 ms. Allocated memory was 591.9 MB in the beginning and 1.1 GB in the end (delta: 513.3 MB). Free memory was 559.9 MB in the beginning and 819.6 MB in the end (delta: -259.7 MB). Peak memory consumption was 253.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 15]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 15). Cancelled while BasicCegarLoop was analyzing trace of length 465 with TraceHistMax 115, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateComparison was comparing new predicate (quantifier-free) to 99 known predicates. - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 13). Cancelled while BasicCegarLoop was analyzing trace of length 465 with TraceHistMax 115, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateComparison was comparing new predicate (quantifier-free) to 99 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 2 error locations. TIMEOUT Result, 751.0s OverallTime, 115 OverallIterations, 115 TraceHistogramMax, 633.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13919 SDtfs, 38221 SDslu, 982869 SDs, 0 SdLazy, 3440402 SolverSat, 14814 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 504.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6897 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 6555 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 101.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1039occurred in iteration=114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/981179 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 114 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.7s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 106.8s InterpolantComputationTime, 26676 NumberOfCodeBlocks, 26676 NumberOfCodeBlocksAsserted, 114 NumberOfCheckSat, 26562 ConstructedInterpolants, 0 QuantifiedInterpolants, 24598806 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 114 InterpolantComputations, 1 PerfectInterpolantSequences, 0/981179 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array3_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-13_15-55-20-588.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array3_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-13_15-55-20-588.csv Completed graceful shutdown