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/array-examples/sanfoundry_24_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-408c70d-m [2018-04-13 14:00:30,600 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-13 14:00:30,601 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-13 14:00:30,611 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-13 14:00:30,611 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-13 14:00:30,612 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-13 14:00:30,613 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-13 14:00:30,615 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-13 14:00:30,616 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-13 14:00:30,617 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-13 14:00:30,617 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-13 14:00:30,618 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-13 14:00:30,618 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-13 14:00:30,619 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-13 14:00:30,620 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-13 14:00:30,621 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-13 14:00:30,623 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-13 14:00:30,624 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-13 14:00:30,625 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-13 14:00:30,626 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-13 14:00:30,627 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-13 14:00:30,627 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-13 14:00:30,628 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-13 14:00:30,628 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-13 14:00:30,629 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-13 14:00:30,630 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-13 14:00:30,630 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-13 14:00:30,631 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-13 14:00:30,631 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-13 14:00:30,631 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-13 14:00:30,632 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-13 14:00:30,632 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 14:00:30,642 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-13 14:00:30,642 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-13 14:00:30,643 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-13 14:00:30,643 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-13 14:00:30,643 INFO L133 SettingsManager]: * Use SBE=true [2018-04-13 14:00:30,643 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-13 14:00:30,643 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-13 14:00:30,643 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-13 14:00:30,643 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-13 14:00:30,644 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-13 14:00:30,644 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-13 14:00:30,644 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-13 14:00:30,644 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-13 14:00:30,644 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-13 14:00:30,644 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-13 14:00:30,644 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-13 14:00:30,645 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-13 14:00:30,645 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-13 14:00:30,645 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-13 14:00:30,645 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 14:00:30,645 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-13 14:00:30,645 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-04-13 14:00:30,645 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-04-13 14:00:30,645 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 14:00:30,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-13 14:00:30,684 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-13 14:00:30,687 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-13 14:00:30,688 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-13 14:00:30,689 INFO L276 PluginConnector]: CDTParser initialized [2018-04-13 14:00:30,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24_false-valid-deref.i [2018-04-13 14:00:31,010 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG79808d0c2 [2018-04-13 14:00:31,097 INFO L287 CDTParser]: IsIndexed: true [2018-04-13 14:00:31,097 INFO L288 CDTParser]: Found 1 translation units. [2018-04-13 14:00:31,098 INFO L168 CDTParser]: Scanning sanfoundry_24_false-valid-deref.i [2018-04-13 14:00:31,098 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-13 14:00:31,099 INFO L215 ultiparseSymbolTable]: [2018-04-13 14:00:31,099 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-13 14:00:31,099 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fsanfoundry____false_valid_deref_i__printOdd ('printOdd') in sanfoundry_24_false-valid-deref.i [2018-04-13 14:00:31,099 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in sanfoundry_24_false-valid-deref.i [2018-04-13 14:00:31,099 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fsanfoundry____false_valid_deref_i____VERIFIER_assert ('__VERIFIER_assert') in sanfoundry_24_false-valid-deref.i [2018-04-13 14:00:31,099 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fsanfoundry____false_valid_deref_i__printEven ('printEven') in sanfoundry_24_false-valid-deref.i [2018-04-13 14:00:31,099 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-13 14:00:31,099 INFO L233 ultiparseSymbolTable]: [2018-04-13 14:00:31,110 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG79808d0c2 [2018-04-13 14:00:31,115 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-13 14:00:31,116 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-13 14:00:31,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-13 14:00:31,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-13 14:00:31,121 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-13 14:00:31,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 02:00:31" (1/1) ... [2018-04-13 14:00:31,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dcbf392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 02:00:31, skipping insertion in model container [2018-04-13 14:00:31,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 02:00:31" (1/1) ... [2018-04-13 14:00:31,134 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 14:00:31,143 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 14:00:31,266 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 14:00:31,284 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 14:00:31,288 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 8 non ball SCCs. Number of states in SCCs 8. [2018-04-13 14:00:31,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 02:00:31 WrapperNode [2018-04-13 14:00:31,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-13 14:00:31,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-13 14:00:31,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-13 14:00:31,297 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-13 14:00:31,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 02:00:31" (1/1) ... [2018-04-13 14:00:31,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 02:00:31" (1/1) ... [2018-04-13 14:00:31,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 02:00:31" (1/1) ... [2018-04-13 14:00:31,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 02:00:31" (1/1) ... [2018-04-13 14:00:31,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 02:00:31" (1/1) ... [2018-04-13 14:00:31,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 02:00:31" (1/1) ... [2018-04-13 14:00:31,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 02:00:31" (1/1) ... [2018-04-13 14:00:31,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-13 14:00:31,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-13 14:00:31,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-13 14:00:31,325 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-13 14:00:31,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 02:00:31" (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 14:00:31,361 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-13 14:00:31,361 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-13 14:00:31,361 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fsanfoundry____false_valid_deref_i____VERIFIER_assert [2018-04-13 14:00:31,361 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fsanfoundry____false_valid_deref_i__printEven [2018-04-13 14:00:31,361 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fsanfoundry____false_valid_deref_i__printOdd [2018-04-13 14:00:31,361 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-13 14:00:31,362 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-13 14:00:31,362 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fsanfoundry____false_valid_deref_i____VERIFIER_assert [2018-04-13 14:00:31,362 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-13 14:00:31,362 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fsanfoundry____false_valid_deref_i__printEven [2018-04-13 14:00:31,362 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fsanfoundry____false_valid_deref_i__printOdd [2018-04-13 14:00:31,362 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-13 14:00:31,362 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-13 14:00:31,362 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-13 14:00:31,515 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-13 14:00:31,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 02:00:31 BoogieIcfgContainer [2018-04-13 14:00:31,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-13 14:00:31,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-13 14:00:31,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-13 14:00:31,518 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-13 14:00:31,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 02:00:31" (1/3) ... [2018-04-13 14:00:31,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a4919f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 02:00:31, skipping insertion in model container [2018-04-13 14:00:31,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 02:00:31" (2/3) ... [2018-04-13 14:00:31,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a4919f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 02:00:31, skipping insertion in model container [2018-04-13 14:00:31,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 02:00:31" (3/3) ... [2018-04-13 14:00:31,521 INFO L107 eAbstractionObserver]: Analyzing ICFG sanfoundry_24_false-valid-deref.i [2018-04-13 14:00:31,528 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-13 14:00:31,533 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-04-13 14:00:31,555 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-13 14:00:31,556 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-13 14:00:31,556 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-13 14:00:31,556 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-04-13 14:00:31,556 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-13 14:00:31,556 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-13 14:00:31,556 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-13 14:00:31,556 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-13 14:00:31,556 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-13 14:00:31,557 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-13 14:00:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-04-13 14:00:31,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-13 14:00:31,571 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:31,571 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:31,572 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:31,574 INFO L82 PathProgramCache]: Analyzing trace with hash 529392829, 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 14:00:31,591 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:31,632 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 14:00:31,651 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 14:00:31,651 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-13 14:00:31,651 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:31,652 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 14:00:31,652 INFO L182 omatonBuilderFactory]: Interpolants [49#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 45#true, 46#false] [2018-04-13 14:00:31,652 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 14:00:31,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-13 14:00:31,660 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-13 14:00:31,660 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-13 14:00:31,662 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2018-04-13 14:00:31,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:31,715 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2018-04-13 14:00:31,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-13 14:00:31,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-04-13 14:00:31,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:31,722 INFO L225 Difference]: With dead ends: 50 [2018-04-13 14:00:31,723 INFO L226 Difference]: Without dead ends: 41 [2018-04-13 14:00:31,724 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 14:00:31,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-13 14:00:31,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-04-13 14:00:31,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-13 14:00:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2018-04-13 14:00:31,753 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 8 [2018-04-13 14:00:31,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:31,753 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2018-04-13 14:00:31,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-13 14:00:31,753 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-04-13 14:00:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-13 14:00:31,754 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:31,754 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:31,754 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:31,754 INFO L82 PathProgramCache]: Analyzing trace with hash -406435754, 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 14:00:31,758 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:31,781 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 14:00:31,806 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:31,807 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-04-13 14:00:31,807 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:31,807 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 14:00:31,808 INFO L182 omatonBuilderFactory]: Interpolants [144#(= 0 main_~i~0), 145#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 140#true, 141#false] [2018-04-13 14:00:31,808 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 14:00:31,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-13 14:00:31,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-13 14:00:31,810 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-13 14:00:31,810 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 4 states. [2018-04-13 14:00:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:31,874 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-04-13 14:00:31,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-13 14:00:31,875 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-13 14:00:31,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:31,876 INFO L225 Difference]: With dead ends: 56 [2018-04-13 14:00:31,876 INFO L226 Difference]: Without dead ends: 56 [2018-04-13 14:00:31,877 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 14:00:31,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-04-13 14:00:31,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2018-04-13 14:00:31,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-13 14:00:31,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2018-04-13 14:00:31,883 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 13 [2018-04-13 14:00:31,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:31,883 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2018-04-13 14:00:31,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-13 14:00:31,883 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2018-04-13 14:00:31,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-13 14:00:31,884 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:31,884 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:31,884 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:31,885 INFO L82 PathProgramCache]: Analyzing trace with hash 2003385437, 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 14:00:31,888 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:31,926 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:31,926 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-04-13 14:00:31,926 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:31,926 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 14:00:31,927 INFO L182 omatonBuilderFactory]: Interpolants [256#true, 257#false, 260#(= 0 main_~i~0), 261#(= main_~i~0 1), 262#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:00:31,927 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:31,927 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 14:00:31,927 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 14:00:31,927 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-13 14:00:31,927 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 5 states. [2018-04-13 14:00:32,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:32,033 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2018-04-13 14:00:32,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-13 14:00:32,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-04-13 14:00:32,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:32,036 INFO L225 Difference]: With dead ends: 71 [2018-04-13 14:00:32,036 INFO L226 Difference]: Without dead ends: 71 [2018-04-13 14:00:32,036 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 14:00:32,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-13 14:00:32,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2018-04-13 14:00:32,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-13 14:00:32,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 83 transitions. [2018-04-13 14:00:32,043 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 83 transitions. Word has length 18 [2018-04-13 14:00:32,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:32,044 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 83 transitions. [2018-04-13 14:00:32,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 14:00:32,044 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2018-04-13 14:00:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-13 14:00:32,045 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:32,045 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:32,045 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:32,045 INFO L82 PathProgramCache]: Analyzing trace with hash -948915018, 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 14:00:32,050 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:32,102 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:32,126 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:32,127 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-04-13 14:00:32,127 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:32,127 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 14:00:32,127 INFO L182 omatonBuilderFactory]: Interpolants [402#true, 403#false, 406#(= 0 main_~i~0), 407#(= main_~i~0 1), 408#(= 2 main_~i~0), 409#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:00:32,127 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:32,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-13 14:00:32,128 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-13 14:00:32,128 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-04-13 14:00:32,128 INFO L87 Difference]: Start difference. First operand 68 states and 83 transitions. Second operand 6 states. [2018-04-13 14:00:32,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:32,280 INFO L93 Difference]: Finished difference Result 86 states and 106 transitions. [2018-04-13 14:00:32,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 14:00:32,281 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-04-13 14:00:32,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:32,281 INFO L225 Difference]: With dead ends: 86 [2018-04-13 14:00:32,281 INFO L226 Difference]: Without dead ends: 86 [2018-04-13 14:00:32,282 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 14:00:32,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-04-13 14:00:32,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2018-04-13 14:00:32,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-13 14:00:32,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 102 transitions. [2018-04-13 14:00:32,287 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 102 transitions. Word has length 23 [2018-04-13 14:00:32,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:32,288 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 102 transitions. [2018-04-13 14:00:32,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-13 14:00:32,288 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 102 transitions. [2018-04-13 14:00:32,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-13 14:00:32,289 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:32,289 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:32,289 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:32,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1053586435, 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 14:00:32,294 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:32,352 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:32,353 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-04-13 14:00:32,353 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:32,353 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 14:00:32,353 INFO L182 omatonBuilderFactory]: Interpolants [578#true, 579#false, 582#(= 0 main_~i~0), 583#(= main_~i~0 1), 584#(= 2 main_~i~0), 585#(= main_~i~0 3), 586#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:00:32,353 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:32,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-13 14:00:32,354 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-13 14:00:32,354 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-13 14:00:32,354 INFO L87 Difference]: Start difference. First operand 82 states and 102 transitions. Second operand 7 states. [2018-04-13 14:00:32,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:32,504 INFO L93 Difference]: Finished difference Result 101 states and 126 transitions. [2018-04-13 14:00:32,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-13 14:00:32,505 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-04-13 14:00:32,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:32,506 INFO L225 Difference]: With dead ends: 101 [2018-04-13 14:00:32,506 INFO L226 Difference]: Without dead ends: 101 [2018-04-13 14:00:32,507 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 14:00:32,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-04-13 14:00:32,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2018-04-13 14:00:32,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-04-13 14:00:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 121 transitions. [2018-04-13 14:00:32,514 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 121 transitions. Word has length 28 [2018-04-13 14:00:32,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:32,514 INFO L459 AbstractCegarLoop]: Abstraction has 96 states and 121 transitions. [2018-04-13 14:00:32,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-13 14:00:32,517 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 121 transitions. [2018-04-13 14:00:32,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-13 14:00:32,520 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:32,520 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:32,520 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:32,521 INFO L82 PathProgramCache]: Analyzing trace with hash -339269354, 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 14:00:32,524 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:32,568 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:32,590 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:32,590 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-04-13 14:00:32,590 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:32,590 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 14:00:32,590 INFO L182 omatonBuilderFactory]: Interpolants [784#true, 785#false, 788#(= 0 main_~i~0), 789#(= main_~i~0 1), 790#(= 2 main_~i~0), 791#(= main_~i~0 3), 792#(= main_~i~0 4), 793#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:00:32,591 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:32,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-13 14:00:32,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-13 14:00:32,591 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-04-13 14:00:32,592 INFO L87 Difference]: Start difference. First operand 96 states and 121 transitions. Second operand 8 states. [2018-04-13 14:00:32,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:32,809 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2018-04-13 14:00:32,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-13 14:00:32,810 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2018-04-13 14:00:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:32,811 INFO L225 Difference]: With dead ends: 116 [2018-04-13 14:00:32,811 INFO L226 Difference]: Without dead ends: 116 [2018-04-13 14:00:32,811 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 14:00:32,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-04-13 14:00:32,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 110. [2018-04-13 14:00:32,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-04-13 14:00:32,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2018-04-13 14:00:32,816 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 33 [2018-04-13 14:00:32,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:32,816 INFO L459 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2018-04-13 14:00:32,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-13 14:00:32,816 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2018-04-13 14:00:32,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-13 14:00:32,817 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:32,817 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:32,817 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:32,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2023150493, 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 14:00:32,819 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:32,874 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:32,874 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-04-13 14:00:32,874 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:32,875 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 14:00:32,875 INFO L182 omatonBuilderFactory]: Interpolants [1024#(= 0 main_~i~0), 1025#(= main_~i~0 1), 1026#(= 2 main_~i~0), 1027#(= main_~i~0 3), 1028#(= main_~i~0 4), 1029#(= main_~i~0 5), 1030#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 1020#true, 1021#false] [2018-04-13 14:00:32,875 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:32,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-13 14:00:32,875 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-13 14:00:32,875 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-04-13 14:00:32,876 INFO L87 Difference]: Start difference. First operand 110 states and 140 transitions. Second operand 9 states. [2018-04-13 14:00:33,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:33,134 INFO L93 Difference]: Finished difference Result 131 states and 166 transitions. [2018-04-13 14:00:33,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-13 14:00:33,134 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2018-04-13 14:00:33,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:33,135 INFO L225 Difference]: With dead ends: 131 [2018-04-13 14:00:33,135 INFO L226 Difference]: Without dead ends: 131 [2018-04-13 14:00:33,136 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 14:00:33,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-04-13 14:00:33,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 124. [2018-04-13 14:00:33,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-04-13 14:00:33,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 159 transitions. [2018-04-13 14:00:33,143 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 159 transitions. Word has length 38 [2018-04-13 14:00:33,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:33,143 INFO L459 AbstractCegarLoop]: Abstraction has 124 states and 159 transitions. [2018-04-13 14:00:33,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-13 14:00:33,144 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 159 transitions. [2018-04-13 14:00:33,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-13 14:00:33,145 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:33,145 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:33,145 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:33,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1822448266, 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 14:00:33,154 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:33,188 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:33,205 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:33,205 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-13 14:00:33,205 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:33,206 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 14:00:33,206 INFO L182 omatonBuilderFactory]: Interpolants [1296#(= main_~i~0 6), 1297#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 1286#true, 1287#false, 1290#(= 0 main_~i~0), 1291#(= main_~i~0 1), 1292#(= 2 main_~i~0), 1293#(= main_~i~0 3), 1294#(= main_~i~0 4), 1295#(= main_~i~0 5)] [2018-04-13 14:00:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:33,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-13 14:00:33,206 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-13 14:00:33,206 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-04-13 14:00:33,206 INFO L87 Difference]: Start difference. First operand 124 states and 159 transitions. Second operand 10 states. [2018-04-13 14:00:33,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:33,467 INFO L93 Difference]: Finished difference Result 146 states and 186 transitions. [2018-04-13 14:00:33,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-13 14:00:33,467 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2018-04-13 14:00:33,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:33,468 INFO L225 Difference]: With dead ends: 146 [2018-04-13 14:00:33,468 INFO L226 Difference]: Without dead ends: 146 [2018-04-13 14:00:33,469 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 14:00:33,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-04-13 14:00:33,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 138. [2018-04-13 14:00:33,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-04-13 14:00:33,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 178 transitions. [2018-04-13 14:00:33,479 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 178 transitions. Word has length 43 [2018-04-13 14:00:33,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:33,479 INFO L459 AbstractCegarLoop]: Abstraction has 138 states and 178 transitions. [2018-04-13 14:00:33,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-13 14:00:33,480 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2018-04-13 14:00:33,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-13 14:00:33,481 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:33,481 INFO L355 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:33,481 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:33,481 INFO L82 PathProgramCache]: Analyzing trace with hash 213717821, 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 14:00:33,484 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:33,521 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:33,538 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:33,539 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-04-13 14:00:33,539 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:33,539 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 14:00:33,539 INFO L182 omatonBuilderFactory]: Interpolants [1586#(= 0 main_~i~0), 1587#(= main_~i~0 1), 1588#(= 2 main_~i~0), 1589#(= main_~i~0 3), 1590#(= main_~i~0 4), 1591#(= main_~i~0 5), 1592#(= main_~i~0 6), 1593#(= main_~i~0 7), 1594#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 1582#true, 1583#false] [2018-04-13 14:00:33,539 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:33,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-13 14:00:33,540 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-13 14:00:33,540 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-04-13 14:00:33,540 INFO L87 Difference]: Start difference. First operand 138 states and 178 transitions. Second operand 11 states. [2018-04-13 14:00:33,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:33,935 INFO L93 Difference]: Finished difference Result 161 states and 206 transitions. [2018-04-13 14:00:33,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-13 14:00:33,936 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2018-04-13 14:00:33,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:33,937 INFO L225 Difference]: With dead ends: 161 [2018-04-13 14:00:33,937 INFO L226 Difference]: Without dead ends: 161 [2018-04-13 14:00:33,937 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 14:00:33,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-04-13 14:00:33,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 152. [2018-04-13 14:00:33,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-04-13 14:00:33,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 197 transitions. [2018-04-13 14:00:33,943 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 197 transitions. Word has length 48 [2018-04-13 14:00:33,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:33,944 INFO L459 AbstractCegarLoop]: Abstraction has 152 states and 197 transitions. [2018-04-13 14:00:33,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-13 14:00:33,944 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 197 transitions. [2018-04-13 14:00:33,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-13 14:00:33,945 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:33,945 INFO L355 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:33,945 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:33,945 INFO L82 PathProgramCache]: Analyzing trace with hash 961554902, 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 14:00:33,948 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:33,989 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:34,008 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:34,008 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-04-13 14:00:34,009 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:34,009 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 14:00:34,009 INFO L182 omatonBuilderFactory]: Interpolants [1920#(= main_~i~0 8), 1921#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 1908#true, 1909#false, 1912#(= 0 main_~i~0), 1913#(= main_~i~0 1), 1914#(= 2 main_~i~0), 1915#(= main_~i~0 3), 1916#(= main_~i~0 4), 1917#(= main_~i~0 5), 1918#(= main_~i~0 6), 1919#(= main_~i~0 7)] [2018-04-13 14:00:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:34,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-13 14:00:34,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-13 14:00:34,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-04-13 14:00:34,010 INFO L87 Difference]: Start difference. First operand 152 states and 197 transitions. Second operand 12 states. [2018-04-13 14:00:34,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:34,554 INFO L93 Difference]: Finished difference Result 176 states and 226 transitions. [2018-04-13 14:00:34,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-13 14:00:34,555 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2018-04-13 14:00:34,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:34,556 INFO L225 Difference]: With dead ends: 176 [2018-04-13 14:00:34,556 INFO L226 Difference]: Without dead ends: 176 [2018-04-13 14:00:34,556 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 14:00:34,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-04-13 14:00:34,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 166. [2018-04-13 14:00:34,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-04-13 14:00:34,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 216 transitions. [2018-04-13 14:00:34,568 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 216 transitions. Word has length 53 [2018-04-13 14:00:34,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:34,568 INFO L459 AbstractCegarLoop]: Abstraction has 166 states and 216 transitions. [2018-04-13 14:00:34,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-13 14:00:34,568 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 216 transitions. [2018-04-13 14:00:34,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-13 14:00:34,570 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:34,570 INFO L355 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:34,570 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:34,570 INFO L82 PathProgramCache]: Analyzing trace with hash -2142221603, 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) [2018-04-13 14:00:34,574 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 14:00:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:34,656 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:34,684 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:34,684 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-13 14:00:34,684 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:34,685 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 14:00:34,685 INFO L182 omatonBuilderFactory]: Interpolants [2272#(= main_~i~0 4), 2273#(= main_~i~0 5), 2274#(= main_~i~0 6), 2275#(= main_~i~0 7), 2276#(= main_~i~0 8), 2277#(= main_~i~0 9), 2278#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 2264#true, 2265#false, 2268#(= 0 main_~i~0), 2269#(= main_~i~0 1), 2270#(= 2 main_~i~0), 2271#(= main_~i~0 3)] [2018-04-13 14:00:34,685 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:34,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-13 14:00:34,686 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-13 14:00:34,686 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-04-13 14:00:34,686 INFO L87 Difference]: Start difference. First operand 166 states and 216 transitions. Second operand 13 states. [2018-04-13 14:00:35,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:35,234 INFO L93 Difference]: Finished difference Result 191 states and 246 transitions. [2018-04-13 14:00:35,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-13 14:00:35,234 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 58 [2018-04-13 14:00:35,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:35,235 INFO L225 Difference]: With dead ends: 191 [2018-04-13 14:00:35,235 INFO L226 Difference]: Without dead ends: 191 [2018-04-13 14:00:35,235 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 14:00:35,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-04-13 14:00:35,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 180. [2018-04-13 14:00:35,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-04-13 14:00:35,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 235 transitions. [2018-04-13 14:00:35,238 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 235 transitions. Word has length 58 [2018-04-13 14:00:35,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:35,243 INFO L459 AbstractCegarLoop]: Abstraction has 180 states and 235 transitions. [2018-04-13 14:00:35,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-13 14:00:35,244 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 235 transitions. [2018-04-13 14:00:35,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-13 14:00:35,245 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:35,245 INFO L355 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:35,245 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:35,245 INFO L82 PathProgramCache]: Analyzing trace with hash -181488074, 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 14:00:35,247 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:35,318 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:35,319 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-04-13 14:00:35,319 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:35,319 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 14:00:35,319 INFO L182 omatonBuilderFactory]: Interpolants [2656#(= 2 main_~i~0), 2657#(= main_~i~0 3), 2658#(= main_~i~0 4), 2659#(= main_~i~0 5), 2660#(= main_~i~0 6), 2661#(= main_~i~0 7), 2662#(= main_~i~0 8), 2663#(= main_~i~0 9), 2664#(= main_~i~0 10), 2665#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 2650#true, 2651#false, 2654#(= 0 main_~i~0), 2655#(= main_~i~0 1)] [2018-04-13 14:00:35,319 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:35,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-13 14:00:35,320 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-13 14:00:35,320 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2018-04-13 14:00:35,320 INFO L87 Difference]: Start difference. First operand 180 states and 235 transitions. Second operand 14 states. [2018-04-13 14:00:35,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:35,799 INFO L93 Difference]: Finished difference Result 206 states and 266 transitions. [2018-04-13 14:00:35,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-13 14:00:35,800 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 63 [2018-04-13 14:00:35,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:35,801 INFO L225 Difference]: With dead ends: 206 [2018-04-13 14:00:35,801 INFO L226 Difference]: Without dead ends: 206 [2018-04-13 14:00:35,801 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 14:00:35,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-04-13 14:00:35,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 194. [2018-04-13 14:00:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-04-13 14:00:35,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 254 transitions. [2018-04-13 14:00:35,807 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 254 transitions. Word has length 63 [2018-04-13 14:00:35,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:35,807 INFO L459 AbstractCegarLoop]: Abstraction has 194 states and 254 transitions. [2018-04-13 14:00:35,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-13 14:00:35,807 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 254 transitions. [2018-04-13 14:00:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-13 14:00:35,808 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:35,808 INFO L355 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:35,809 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:35,809 INFO L82 PathProgramCache]: Analyzing trace with hash 159021693, 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 14:00:35,816 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:35,916 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:35,917 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-13 14:00:35,917 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:35,917 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 14:00:35,917 INFO L182 omatonBuilderFactory]: Interpolants [3072#(= 2 main_~i~0), 3073#(= main_~i~0 3), 3074#(= main_~i~0 4), 3075#(= main_~i~0 5), 3076#(= main_~i~0 6), 3077#(= main_~i~0 7), 3078#(= main_~i~0 8), 3079#(= main_~i~0 9), 3080#(= main_~i~0 10), 3081#(= main_~i~0 11), 3082#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 3066#true, 3067#false, 3070#(= 0 main_~i~0), 3071#(= main_~i~0 1)] [2018-04-13 14:00:35,917 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:35,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-13 14:00:35,918 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-13 14:00:35,918 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-04-13 14:00:35,918 INFO L87 Difference]: Start difference. First operand 194 states and 254 transitions. Second operand 15 states. [2018-04-13 14:00:36,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:36,621 INFO L93 Difference]: Finished difference Result 221 states and 286 transitions. [2018-04-13 14:00:36,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-13 14:00:36,621 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 68 [2018-04-13 14:00:36,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:36,622 INFO L225 Difference]: With dead ends: 221 [2018-04-13 14:00:36,622 INFO L226 Difference]: Without dead ends: 221 [2018-04-13 14:00:36,622 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 14:00:36,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-04-13 14:00:36,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 208. [2018-04-13 14:00:36,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-04-13 14:00:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 273 transitions. [2018-04-13 14:00:36,627 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 273 transitions. Word has length 68 [2018-04-13 14:00:36,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:36,627 INFO L459 AbstractCegarLoop]: Abstraction has 208 states and 273 transitions. [2018-04-13 14:00:36,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-13 14:00:36,627 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 273 transitions. [2018-04-13 14:00:36,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-13 14:00:36,628 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:36,629 INFO L355 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:36,629 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:36,629 INFO L82 PathProgramCache]: Analyzing trace with hash -619623786, 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 14:00:36,636 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:36,734 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:36,734 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-13 14:00:36,734 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:36,735 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 14:00:36,735 INFO L182 omatonBuilderFactory]: Interpolants [3520#(= main_~i~0 4), 3521#(= main_~i~0 5), 3522#(= main_~i~0 6), 3523#(= main_~i~0 7), 3524#(= main_~i~0 8), 3525#(= main_~i~0 9), 3526#(= main_~i~0 10), 3527#(= main_~i~0 11), 3528#(= main_~i~0 12), 3529#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 3512#true, 3513#false, 3516#(= 0 main_~i~0), 3517#(= main_~i~0 1), 3518#(= 2 main_~i~0), 3519#(= main_~i~0 3)] [2018-04-13 14:00:36,735 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:36,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-13 14:00:36,735 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-13 14:00:36,735 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2018-04-13 14:00:36,735 INFO L87 Difference]: Start difference. First operand 208 states and 273 transitions. Second operand 16 states. [2018-04-13 14:00:37,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:37,358 INFO L93 Difference]: Finished difference Result 236 states and 306 transitions. [2018-04-13 14:00:37,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-13 14:00:37,358 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2018-04-13 14:00:37,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:37,359 INFO L225 Difference]: With dead ends: 236 [2018-04-13 14:00:37,359 INFO L226 Difference]: Without dead ends: 236 [2018-04-13 14:00:37,359 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 14:00:37,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-04-13 14:00:37,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 222. [2018-04-13 14:00:37,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-04-13 14:00:37,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 292 transitions. [2018-04-13 14:00:37,362 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 292 transitions. Word has length 73 [2018-04-13 14:00:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:37,363 INFO L459 AbstractCegarLoop]: Abstraction has 222 states and 292 transitions. [2018-04-13 14:00:37,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-13 14:00:37,363 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 292 transitions. [2018-04-13 14:00:37,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-13 14:00:37,364 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:37,364 INFO L355 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:37,364 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:37,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1310350819, 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 14:00:37,367 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:37,486 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:37,487 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-13 14:00:37,487 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:37,487 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 14:00:37,487 INFO L182 omatonBuilderFactory]: Interpolants [4000#(= main_~i~0 8), 4001#(= main_~i~0 9), 4002#(= main_~i~0 10), 4003#(= main_~i~0 11), 4004#(= main_~i~0 12), 4005#(= main_~i~0 13), 4006#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 3988#true, 3989#false, 3992#(= 0 main_~i~0), 3993#(= main_~i~0 1), 3994#(= 2 main_~i~0), 3995#(= main_~i~0 3), 3996#(= main_~i~0 4), 3997#(= main_~i~0 5), 3998#(= main_~i~0 6), 3999#(= main_~i~0 7)] [2018-04-13 14:00:37,487 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:37,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-13 14:00:37,487 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-13 14:00:37,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-04-13 14:00:37,488 INFO L87 Difference]: Start difference. First operand 222 states and 292 transitions. Second operand 17 states. [2018-04-13 14:00:38,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:38,329 INFO L93 Difference]: Finished difference Result 251 states and 326 transitions. [2018-04-13 14:00:38,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-13 14:00:38,330 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 78 [2018-04-13 14:00:38,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:38,330 INFO L225 Difference]: With dead ends: 251 [2018-04-13 14:00:38,331 INFO L226 Difference]: Without dead ends: 251 [2018-04-13 14:00:38,331 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 14:00:38,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-04-13 14:00:38,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 236. [2018-04-13 14:00:38,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2018-04-13 14:00:38,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 311 transitions. [2018-04-13 14:00:38,334 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 311 transitions. Word has length 78 [2018-04-13 14:00:38,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:38,334 INFO L459 AbstractCegarLoop]: Abstraction has 236 states and 311 transitions. [2018-04-13 14:00:38,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-13 14:00:38,334 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 311 transitions. [2018-04-13 14:00:38,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-13 14:00:38,335 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:38,336 INFO L355 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:38,336 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:38,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1536026358, 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 14:00:38,338 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:38,446 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:38,446 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-13 14:00:38,446 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:38,447 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 14:00:38,447 INFO L182 omatonBuilderFactory]: Interpolants [4512#(= main_~i~0 14), 4513#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 4494#true, 4495#false, 4498#(= 0 main_~i~0), 4499#(= main_~i~0 1), 4500#(= 2 main_~i~0), 4501#(= main_~i~0 3), 4502#(= main_~i~0 4), 4503#(= main_~i~0 5), 4504#(= main_~i~0 6), 4505#(= main_~i~0 7), 4506#(= main_~i~0 8), 4507#(= main_~i~0 9), 4508#(= main_~i~0 10), 4509#(= main_~i~0 11), 4510#(= main_~i~0 12), 4511#(= main_~i~0 13)] [2018-04-13 14:00:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:38,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-13 14:00:38,448 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-13 14:00:38,448 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-04-13 14:00:38,448 INFO L87 Difference]: Start difference. First operand 236 states and 311 transitions. Second operand 18 states. [2018-04-13 14:00:39,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:39,227 INFO L93 Difference]: Finished difference Result 266 states and 346 transitions. [2018-04-13 14:00:39,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-13 14:00:39,227 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 83 [2018-04-13 14:00:39,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:39,228 INFO L225 Difference]: With dead ends: 266 [2018-04-13 14:00:39,228 INFO L226 Difference]: Without dead ends: 266 [2018-04-13 14:00:39,228 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-04-13 14:00:39,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-04-13 14:00:39,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 250. [2018-04-13 14:00:39,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-04-13 14:00:39,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 330 transitions. [2018-04-13 14:00:39,233 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 330 transitions. Word has length 83 [2018-04-13 14:00:39,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:39,233 INFO L459 AbstractCegarLoop]: Abstraction has 250 states and 330 transitions. [2018-04-13 14:00:39,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-13 14:00:39,233 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 330 transitions. [2018-04-13 14:00:39,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-13 14:00:39,235 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:39,235 INFO L355 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:39,235 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:39,235 INFO L82 PathProgramCache]: Analyzing trace with hash -155467331, 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 14:00:39,238 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:39,327 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:39,343 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:39,343 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-13 14:00:39,343 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:39,343 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 14:00:39,343 INFO L182 omatonBuilderFactory]: Interpolants [5030#true, 5031#false, 5034#(= 0 main_~i~0), 5035#(= main_~i~0 1), 5036#(= 2 main_~i~0), 5037#(= main_~i~0 3), 5038#(= main_~i~0 4), 5039#(= main_~i~0 5), 5040#(= main_~i~0 6), 5041#(= main_~i~0 7), 5042#(= main_~i~0 8), 5043#(= main_~i~0 9), 5044#(= main_~i~0 10), 5045#(= main_~i~0 11), 5046#(= main_~i~0 12), 5047#(= main_~i~0 13), 5048#(= main_~i~0 14), 5049#(= main_~i~0 15), 5050#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:00:39,344 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:39,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-13 14:00:39,344 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-13 14:00:39,344 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2018-04-13 14:00:39,344 INFO L87 Difference]: Start difference. First operand 250 states and 330 transitions. Second operand 19 states. [2018-04-13 14:00:40,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:40,265 INFO L93 Difference]: Finished difference Result 281 states and 366 transitions. [2018-04-13 14:00:40,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-13 14:00:40,265 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 88 [2018-04-13 14:00:40,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:40,266 INFO L225 Difference]: With dead ends: 281 [2018-04-13 14:00:40,266 INFO L226 Difference]: Without dead ends: 281 [2018-04-13 14:00:40,266 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 14:00:40,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2018-04-13 14:00:40,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 264. [2018-04-13 14:00:40,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-04-13 14:00:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 349 transitions. [2018-04-13 14:00:40,270 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 349 transitions. Word has length 88 [2018-04-13 14:00:40,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:40,271 INFO L459 AbstractCegarLoop]: Abstraction has 264 states and 349 transitions. [2018-04-13 14:00:40,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-13 14:00:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 349 transitions. [2018-04-13 14:00:40,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-04-13 14:00:40,272 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:40,272 INFO L355 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:40,272 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:40,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1548055722, 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 14:00:40,276 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:40,404 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:40,404 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-13 14:00:40,404 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:40,404 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 14:00:40,404 INFO L182 omatonBuilderFactory]: Interpolants [5600#(= 0 main_~i~0), 5601#(= main_~i~0 1), 5602#(= 2 main_~i~0), 5603#(= main_~i~0 3), 5604#(= main_~i~0 4), 5605#(= main_~i~0 5), 5606#(= main_~i~0 6), 5607#(= main_~i~0 7), 5608#(= main_~i~0 8), 5609#(= main_~i~0 9), 5610#(= main_~i~0 10), 5611#(= main_~i~0 11), 5612#(= main_~i~0 12), 5613#(= main_~i~0 13), 5614#(= main_~i~0 14), 5615#(= main_~i~0 15), 5616#(= main_~i~0 16), 5617#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 5596#true, 5597#false] [2018-04-13 14:00:40,405 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:40,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-13 14:00:40,405 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-13 14:00:40,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2018-04-13 14:00:40,405 INFO L87 Difference]: Start difference. First operand 264 states and 349 transitions. Second operand 20 states. [2018-04-13 14:00:41,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:41,649 INFO L93 Difference]: Finished difference Result 296 states and 386 transitions. [2018-04-13 14:00:41,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-13 14:00:41,649 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 93 [2018-04-13 14:00:41,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:41,650 INFO L225 Difference]: With dead ends: 296 [2018-04-13 14:00:41,650 INFO L226 Difference]: Without dead ends: 296 [2018-04-13 14:00:41,650 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 14:00:41,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2018-04-13 14:00:41,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 278. [2018-04-13 14:00:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-04-13 14:00:41,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 368 transitions. [2018-04-13 14:00:41,654 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 368 transitions. Word has length 93 [2018-04-13 14:00:41,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:41,654 INFO L459 AbstractCegarLoop]: Abstraction has 278 states and 368 transitions. [2018-04-13 14:00:41,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-13 14:00:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 368 transitions. [2018-04-13 14:00:41,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-04-13 14:00:41,655 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:41,655 INFO L355 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:41,655 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:41,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1755765085, 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 14:00:41,660 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:41,793 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:41,812 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:41,812 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-13 14:00:41,812 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:41,813 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 14:00:41,813 INFO L182 omatonBuilderFactory]: Interpolants [6208#(= main_~i~0 12), 6209#(= main_~i~0 13), 6210#(= main_~i~0 14), 6211#(= main_~i~0 15), 6212#(= main_~i~0 16), 6213#(= main_~i~0 17), 6214#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 6192#true, 6193#false, 6196#(= 0 main_~i~0), 6197#(= main_~i~0 1), 6198#(= 2 main_~i~0), 6199#(= main_~i~0 3), 6200#(= main_~i~0 4), 6201#(= main_~i~0 5), 6202#(= main_~i~0 6), 6203#(= main_~i~0 7), 6204#(= main_~i~0 8), 6205#(= main_~i~0 9), 6206#(= main_~i~0 10), 6207#(= main_~i~0 11)] [2018-04-13 14:00:41,813 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:41,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-13 14:00:41,813 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-13 14:00:41,814 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2018-04-13 14:00:41,814 INFO L87 Difference]: Start difference. First operand 278 states and 368 transitions. Second operand 21 states. [2018-04-13 14:00:42,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:42,951 INFO L93 Difference]: Finished difference Result 311 states and 406 transitions. [2018-04-13 14:00:42,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-13 14:00:42,951 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 98 [2018-04-13 14:00:42,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:42,952 INFO L225 Difference]: With dead ends: 311 [2018-04-13 14:00:42,952 INFO L226 Difference]: Without dead ends: 311 [2018-04-13 14:00:42,953 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2018-04-13 14:00:42,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2018-04-13 14:00:42,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 292. [2018-04-13 14:00:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2018-04-13 14:00:42,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 387 transitions. [2018-04-13 14:00:42,957 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 387 transitions. Word has length 98 [2018-04-13 14:00:42,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:42,958 INFO L459 AbstractCegarLoop]: Abstraction has 292 states and 387 transitions. [2018-04-13 14:00:42,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-13 14:00:42,958 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 387 transitions. [2018-04-13 14:00:42,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-04-13 14:00:42,959 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:42,959 INFO L355 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:42,959 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:42,959 INFO L82 PathProgramCache]: Analyzing trace with hash -47368266, 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 14:00:42,964 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:43,136 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:43,155 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:43,155 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 14:00:43,155 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:43,155 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 14:00:43,155 INFO L182 omatonBuilderFactory]: Interpolants [6818#true, 6819#false, 6822#(= 0 main_~i~0), 6823#(= main_~i~0 1), 6824#(= 2 main_~i~0), 6825#(= main_~i~0 3), 6826#(= main_~i~0 4), 6827#(= main_~i~0 5), 6828#(= main_~i~0 6), 6829#(= main_~i~0 7), 6830#(= main_~i~0 8), 6831#(= main_~i~0 9), 6832#(= main_~i~0 10), 6833#(= main_~i~0 11), 6834#(= main_~i~0 12), 6835#(= main_~i~0 13), 6836#(= main_~i~0 14), 6837#(= main_~i~0 15), 6838#(= main_~i~0 16), 6839#(= main_~i~0 17), 6840#(= main_~i~0 18), 6841#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:00:43,156 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:43,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-13 14:00:43,156 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-13 14:00:43,156 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2018-04-13 14:00:43,156 INFO L87 Difference]: Start difference. First operand 292 states and 387 transitions. Second operand 22 states. [2018-04-13 14:00:44,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:44,474 INFO L93 Difference]: Finished difference Result 326 states and 426 transitions. [2018-04-13 14:00:44,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-13 14:00:44,474 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 103 [2018-04-13 14:00:44,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:44,475 INFO L225 Difference]: With dead ends: 326 [2018-04-13 14:00:44,475 INFO L226 Difference]: Without dead ends: 326 [2018-04-13 14:00:44,475 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2018-04-13 14:00:44,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2018-04-13 14:00:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 306. [2018-04-13 14:00:44,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2018-04-13 14:00:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 406 transitions. [2018-04-13 14:00:44,478 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 406 transitions. Word has length 103 [2018-04-13 14:00:44,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:44,479 INFO L459 AbstractCegarLoop]: Abstraction has 306 states and 406 transitions. [2018-04-13 14:00:44,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-13 14:00:44,479 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 406 transitions. [2018-04-13 14:00:44,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-04-13 14:00:44,479 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:44,480 INFO L355 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:44,480 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:44,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1271982333, 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 14:00:44,486 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:44,634 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:44,634 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-13 14:00:44,634 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:44,635 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 14:00:44,635 INFO L182 omatonBuilderFactory]: Interpolants [7488#(= main_~i~0 10), 7489#(= main_~i~0 11), 7490#(= main_~i~0 12), 7491#(= main_~i~0 13), 7492#(= main_~i~0 14), 7493#(= main_~i~0 15), 7494#(= main_~i~0 16), 7495#(= main_~i~0 17), 7496#(= main_~i~0 18), 7497#(= main_~i~0 19), 7498#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 7474#true, 7475#false, 7478#(= 0 main_~i~0), 7479#(= main_~i~0 1), 7480#(= 2 main_~i~0), 7481#(= main_~i~0 3), 7482#(= main_~i~0 4), 7483#(= main_~i~0 5), 7484#(= main_~i~0 6), 7485#(= main_~i~0 7), 7486#(= main_~i~0 8), 7487#(= main_~i~0 9)] [2018-04-13 14:00:44,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:44,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-13 14:00:44,635 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-13 14:00:44,635 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2018-04-13 14:00:44,636 INFO L87 Difference]: Start difference. First operand 306 states and 406 transitions. Second operand 23 states. [2018-04-13 14:00:46,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:46,019 INFO L93 Difference]: Finished difference Result 341 states and 446 transitions. [2018-04-13 14:00:46,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-13 14:00:46,019 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 108 [2018-04-13 14:00:46,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:46,020 INFO L225 Difference]: With dead ends: 341 [2018-04-13 14:00:46,020 INFO L226 Difference]: Without dead ends: 341 [2018-04-13 14:00:46,020 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 14:00:46,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2018-04-13 14:00:46,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 320. [2018-04-13 14:00:46,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2018-04-13 14:00:46,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 425 transitions. [2018-04-13 14:00:46,024 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 425 transitions. Word has length 108 [2018-04-13 14:00:46,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:46,024 INFO L459 AbstractCegarLoop]: Abstraction has 320 states and 425 transitions. [2018-04-13 14:00:46,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-13 14:00:46,024 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 425 transitions. [2018-04-13 14:00:46,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-04-13 14:00:46,025 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:46,025 INFO L355 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:46,025 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:46,025 INFO L82 PathProgramCache]: Analyzing trace with hash 771484694, 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 14:00:46,030 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:46,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 1113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:46,203 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:46,203 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-13 14:00:46,203 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:46,203 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 14:00:46,203 INFO L182 omatonBuilderFactory]: Interpolants [8160#true, 8161#false, 8164#(= 0 main_~i~0), 8165#(= main_~i~0 1), 8166#(= 2 main_~i~0), 8167#(= main_~i~0 3), 8168#(= main_~i~0 4), 8169#(= main_~i~0 5), 8170#(= main_~i~0 6), 8171#(= main_~i~0 7), 8172#(= main_~i~0 8), 8173#(= main_~i~0 9), 8174#(= main_~i~0 10), 8175#(= main_~i~0 11), 8176#(= main_~i~0 12), 8177#(= main_~i~0 13), 8178#(= main_~i~0 14), 8179#(= main_~i~0 15), 8180#(= main_~i~0 16), 8181#(= main_~i~0 17), 8182#(= main_~i~0 18), 8183#(= main_~i~0 19), 8184#(= main_~i~0 20), 8185#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:00:46,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 1113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:46,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-13 14:00:46,204 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-13 14:00:46,204 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2018-04-13 14:00:46,204 INFO L87 Difference]: Start difference. First operand 320 states and 425 transitions. Second operand 24 states. [2018-04-13 14:00:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:47,702 INFO L93 Difference]: Finished difference Result 356 states and 466 transitions. [2018-04-13 14:00:47,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-13 14:00:47,702 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 113 [2018-04-13 14:00:47,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:47,703 INFO L225 Difference]: With dead ends: 356 [2018-04-13 14:00:47,703 INFO L226 Difference]: Without dead ends: 356 [2018-04-13 14:00:47,704 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 14:00:47,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-04-13 14:00:47,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 334. [2018-04-13 14:00:47,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-04-13 14:00:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 444 transitions. [2018-04-13 14:00:47,709 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 444 transitions. Word has length 113 [2018-04-13 14:00:47,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:47,710 INFO L459 AbstractCegarLoop]: Abstraction has 334 states and 444 transitions. [2018-04-13 14:00:47,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-13 14:00:47,710 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 444 transitions. [2018-04-13 14:00:47,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-04-13 14:00:47,711 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:47,711 INFO L355 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:47,711 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:47,711 INFO L82 PathProgramCache]: Analyzing trace with hash 937685149, 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 14:00:47,715 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:47,904 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:47,904 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-13 14:00:47,904 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:47,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:47,904 INFO L182 omatonBuilderFactory]: Interpolants [8896#(= main_~i~0 16), 8897#(= main_~i~0 17), 8898#(= main_~i~0 18), 8899#(= main_~i~0 19), 8900#(= main_~i~0 20), 8901#(= main_~i~0 21), 8902#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 8876#true, 8877#false, 8880#(= 0 main_~i~0), 8881#(= main_~i~0 1), 8882#(= 2 main_~i~0), 8883#(= main_~i~0 3), 8884#(= main_~i~0 4), 8885#(= main_~i~0 5), 8886#(= main_~i~0 6), 8887#(= main_~i~0 7), 8888#(= main_~i~0 8), 8889#(= main_~i~0 9), 8890#(= main_~i~0 10), 8891#(= main_~i~0 11), 8892#(= main_~i~0 12), 8893#(= main_~i~0 13), 8894#(= main_~i~0 14), 8895#(= main_~i~0 15)] [2018-04-13 14:00:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:47,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-13 14:00:47,905 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-13 14:00:47,905 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2018-04-13 14:00:47,905 INFO L87 Difference]: Start difference. First operand 334 states and 444 transitions. Second operand 25 states. [2018-04-13 14:00:49,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:49,563 INFO L93 Difference]: Finished difference Result 371 states and 486 transitions. [2018-04-13 14:00:49,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-13 14:00:49,564 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 118 [2018-04-13 14:00:49,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:49,565 INFO L225 Difference]: With dead ends: 371 [2018-04-13 14:00:49,565 INFO L226 Difference]: Without dead ends: 371 [2018-04-13 14:00:49,565 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 14:00:49,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-04-13 14:00:49,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 348. [2018-04-13 14:00:49,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-04-13 14:00:49,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 463 transitions. [2018-04-13 14:00:49,570 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 463 transitions. Word has length 118 [2018-04-13 14:00:49,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:49,570 INFO L459 AbstractCegarLoop]: Abstraction has 348 states and 463 transitions. [2018-04-13 14:00:49,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-13 14:00:49,570 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 463 transitions. [2018-04-13 14:00:49,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-04-13 14:00:49,571 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:49,571 INFO L355 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:49,571 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:49,571 INFO L82 PathProgramCache]: Analyzing trace with hash -658724746, 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 14:00:49,577 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:49,796 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:49,796 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-13 14:00:49,796 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:49,796 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 14:00:49,796 INFO L182 omatonBuilderFactory]: Interpolants [9622#true, 9623#false, 9626#(= 0 main_~i~0), 9627#(= main_~i~0 1), 9628#(= 2 main_~i~0), 9629#(= main_~i~0 3), 9630#(= main_~i~0 4), 9631#(= main_~i~0 5), 9632#(= main_~i~0 6), 9633#(= main_~i~0 7), 9634#(= main_~i~0 8), 9635#(= main_~i~0 9), 9636#(= main_~i~0 10), 9637#(= main_~i~0 11), 9638#(= main_~i~0 12), 9639#(= main_~i~0 13), 9640#(= main_~i~0 14), 9641#(= main_~i~0 15), 9642#(= main_~i~0 16), 9643#(= main_~i~0 17), 9644#(= main_~i~0 18), 9645#(= main_~i~0 19), 9646#(= main_~i~0 20), 9647#(= main_~i~0 21), 9648#(= main_~i~0 22), 9649#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:00:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:49,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-13 14:00:49,797 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-13 14:00:49,797 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2018-04-13 14:00:49,797 INFO L87 Difference]: Start difference. First operand 348 states and 463 transitions. Second operand 26 states. [2018-04-13 14:00:51,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:51,614 INFO L93 Difference]: Finished difference Result 386 states and 506 transitions. [2018-04-13 14:00:51,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 14:00:51,614 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 123 [2018-04-13 14:00:51,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:51,615 INFO L225 Difference]: With dead ends: 386 [2018-04-13 14:00:51,615 INFO L226 Difference]: Without dead ends: 386 [2018-04-13 14:00:51,615 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 14:00:51,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2018-04-13 14:00:51,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 362. [2018-04-13 14:00:51,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2018-04-13 14:00:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 482 transitions. [2018-04-13 14:00:51,619 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 482 transitions. Word has length 123 [2018-04-13 14:00:51,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:51,619 INFO L459 AbstractCegarLoop]: Abstraction has 362 states and 482 transitions. [2018-04-13 14:00:51,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-13 14:00:51,620 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 482 transitions. [2018-04-13 14:00:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-04-13 14:00:51,620 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:51,620 INFO L355 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:51,620 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:51,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1207308227, 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 14:00:51,623 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:51,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:51,812 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:51,812 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 14:00:51,812 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:51,812 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 14:00:51,812 INFO L182 omatonBuilderFactory]: Interpolants [10398#true, 10399#false, 10402#(= 0 main_~i~0), 10403#(= main_~i~0 1), 10404#(= 2 main_~i~0), 10405#(= main_~i~0 3), 10406#(= main_~i~0 4), 10407#(= main_~i~0 5), 10408#(= main_~i~0 6), 10409#(= main_~i~0 7), 10410#(= main_~i~0 8), 10411#(= main_~i~0 9), 10412#(= main_~i~0 10), 10413#(= main_~i~0 11), 10414#(= main_~i~0 12), 10415#(= main_~i~0 13), 10416#(= main_~i~0 14), 10417#(= main_~i~0 15), 10418#(= main_~i~0 16), 10419#(= main_~i~0 17), 10420#(= main_~i~0 18), 10421#(= main_~i~0 19), 10422#(= main_~i~0 20), 10423#(= main_~i~0 21), 10424#(= main_~i~0 22), 10425#(= main_~i~0 23), 10426#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:00:51,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:51,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 14:00:51,813 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 14:00:51,813 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2018-04-13 14:00:51,813 INFO L87 Difference]: Start difference. First operand 362 states and 482 transitions. Second operand 27 states. [2018-04-13 14:00:53,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:53,752 INFO L93 Difference]: Finished difference Result 401 states and 526 transitions. [2018-04-13 14:00:53,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-13 14:00:53,753 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 128 [2018-04-13 14:00:53,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:53,753 INFO L225 Difference]: With dead ends: 401 [2018-04-13 14:00:53,754 INFO L226 Difference]: Without dead ends: 401 [2018-04-13 14:00:53,754 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 14:00:53,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2018-04-13 14:00:53,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 376. [2018-04-13 14:00:53,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-04-13 14:00:53,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 501 transitions. [2018-04-13 14:00:53,759 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 501 transitions. Word has length 128 [2018-04-13 14:00:53,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:53,760 INFO L459 AbstractCegarLoop]: Abstraction has 376 states and 501 transitions. [2018-04-13 14:00:53,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 14:00:53,760 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 501 transitions. [2018-04-13 14:00:53,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-04-13 14:00:53,761 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:53,761 INFO L355 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:53,761 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:53,762 INFO L82 PathProgramCache]: Analyzing trace with hash -595235626, 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 14:00:53,765 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:53,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:54,003 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:54,003 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-13 14:00:54,003 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:54,003 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 14:00:54,003 INFO L182 omatonBuilderFactory]: Interpolants [11204#true, 11205#false, 11208#(= 0 main_~i~0), 11209#(= main_~i~0 1), 11210#(= 2 main_~i~0), 11211#(= main_~i~0 3), 11212#(= main_~i~0 4), 11213#(= main_~i~0 5), 11214#(= main_~i~0 6), 11215#(= main_~i~0 7), 11216#(= main_~i~0 8), 11217#(= main_~i~0 9), 11218#(= main_~i~0 10), 11219#(= main_~i~0 11), 11220#(= main_~i~0 12), 11221#(= main_~i~0 13), 11222#(= main_~i~0 14), 11223#(= main_~i~0 15), 11224#(= main_~i~0 16), 11225#(= main_~i~0 17), 11226#(= main_~i~0 18), 11227#(= main_~i~0 19), 11228#(= main_~i~0 20), 11229#(= main_~i~0 21), 11230#(= main_~i~0 22), 11231#(= main_~i~0 23), 11232#(= main_~i~0 24), 11233#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:00:54,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:54,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-13 14:00:54,004 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-13 14:00:54,004 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2018-04-13 14:00:54,004 INFO L87 Difference]: Start difference. First operand 376 states and 501 transitions. Second operand 28 states. [2018-04-13 14:00:56,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:56,059 INFO L93 Difference]: Finished difference Result 416 states and 546 transitions. [2018-04-13 14:00:56,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 14:00:56,059 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 133 [2018-04-13 14:00:56,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:56,060 INFO L225 Difference]: With dead ends: 416 [2018-04-13 14:00:56,060 INFO L226 Difference]: Without dead ends: 416 [2018-04-13 14:00:56,060 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2018-04-13 14:00:56,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2018-04-13 14:00:56,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 390. [2018-04-13 14:00:56,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2018-04-13 14:00:56,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 520 transitions. [2018-04-13 14:00:56,064 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 520 transitions. Word has length 133 [2018-04-13 14:00:56,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:56,064 INFO L459 AbstractCegarLoop]: Abstraction has 390 states and 520 transitions. [2018-04-13 14:00:56,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-13 14:00:56,064 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 520 transitions. [2018-04-13 14:00:56,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-04-13 14:00:56,065 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:56,065 INFO L355 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:56,065 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:56,065 INFO L82 PathProgramCache]: Analyzing trace with hash -353572899, 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 14:00:56,069 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:56,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 1703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:56,284 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:56,284 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-13 14:00:56,284 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:56,284 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 14:00:56,284 INFO L182 omatonBuilderFactory]: Interpolants [12040#true, 12041#false, 12044#(= 0 main_~i~0), 12045#(= main_~i~0 1), 12046#(= 2 main_~i~0), 12047#(= main_~i~0 3), 12048#(= main_~i~0 4), 12049#(= main_~i~0 5), 12050#(= main_~i~0 6), 12051#(= main_~i~0 7), 12052#(= main_~i~0 8), 12053#(= main_~i~0 9), 12054#(= main_~i~0 10), 12055#(= main_~i~0 11), 12056#(= main_~i~0 12), 12057#(= main_~i~0 13), 12058#(= main_~i~0 14), 12059#(= main_~i~0 15), 12060#(= main_~i~0 16), 12061#(= main_~i~0 17), 12062#(= main_~i~0 18), 12063#(= main_~i~0 19), 12064#(= main_~i~0 20), 12065#(= main_~i~0 21), 12066#(= main_~i~0 22), 12067#(= main_~i~0 23), 12068#(= main_~i~0 24), 12069#(= main_~i~0 25), 12070#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:00:56,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 1703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:56,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-13 14:00:56,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-13 14:00:56,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2018-04-13 14:00:56,285 INFO L87 Difference]: Start difference. First operand 390 states and 520 transitions. Second operand 29 states. [2018-04-13 14:00:58,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:00:58,589 INFO L93 Difference]: Finished difference Result 431 states and 566 transitions. [2018-04-13 14:00:58,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 14:00:58,590 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 138 [2018-04-13 14:00:58,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:00:58,590 INFO L225 Difference]: With dead ends: 431 [2018-04-13 14:00:58,591 INFO L226 Difference]: Without dead ends: 431 [2018-04-13 14:00:58,591 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 14:00:58,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2018-04-13 14:00:58,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 404. [2018-04-13 14:00:58,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2018-04-13 14:00:58,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 539 transitions. [2018-04-13 14:00:58,595 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 539 transitions. Word has length 138 [2018-04-13 14:00:58,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:00:58,595 INFO L459 AbstractCegarLoop]: Abstraction has 404 states and 539 transitions. [2018-04-13 14:00:58,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-13 14:00:58,595 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 539 transitions. [2018-04-13 14:00:58,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-04-13 14:00:58,596 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:00:58,596 INFO L355 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 1, 1, 1, 1, 1, 1] [2018-04-13 14:00:58,596 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:00:58,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1259587274, 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 14:00:58,599 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:00:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:00:58,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 0 proven. 1836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:58,819 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:00:58,819 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-13 14:00:58,819 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:00:58,819 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 14:00:58,819 INFO L182 omatonBuilderFactory]: Interpolants [12928#(= main_~i~0 18), 12929#(= main_~i~0 19), 12930#(= main_~i~0 20), 12931#(= main_~i~0 21), 12932#(= main_~i~0 22), 12933#(= main_~i~0 23), 12934#(= main_~i~0 24), 12935#(= main_~i~0 25), 12936#(= main_~i~0 26), 12937#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 12906#true, 12907#false, 12910#(= 0 main_~i~0), 12911#(= main_~i~0 1), 12912#(= 2 main_~i~0), 12913#(= main_~i~0 3), 12914#(= main_~i~0 4), 12915#(= main_~i~0 5), 12916#(= main_~i~0 6), 12917#(= main_~i~0 7), 12918#(= main_~i~0 8), 12919#(= main_~i~0 9), 12920#(= main_~i~0 10), 12921#(= main_~i~0 11), 12922#(= main_~i~0 12), 12923#(= main_~i~0 13), 12924#(= main_~i~0 14), 12925#(= main_~i~0 15), 12926#(= main_~i~0 16), 12927#(= main_~i~0 17)] [2018-04-13 14:00:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 0 proven. 1836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:00:58,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-13 14:00:58,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-13 14:00:58,820 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=786, Unknown=0, NotChecked=0, Total=870 [2018-04-13 14:00:58,820 INFO L87 Difference]: Start difference. First operand 404 states and 539 transitions. Second operand 30 states. [2018-04-13 14:01:01,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:01,337 INFO L93 Difference]: Finished difference Result 446 states and 586 transitions. [2018-04-13 14:01:01,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-13 14:01:01,337 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 143 [2018-04-13 14:01:01,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:01,338 INFO L225 Difference]: With dead ends: 446 [2018-04-13 14:01:01,338 INFO L226 Difference]: Without dead ends: 446 [2018-04-13 14:01:01,339 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 14:01:01,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2018-04-13 14:01:01,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 418. [2018-04-13 14:01:01,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2018-04-13 14:01:01,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 558 transitions. [2018-04-13 14:01:01,342 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 558 transitions. Word has length 143 [2018-04-13 14:01:01,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:01,342 INFO L459 AbstractCegarLoop]: Abstraction has 418 states and 558 transitions. [2018-04-13 14:01:01,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-13 14:01:01,343 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 558 transitions. [2018-04-13 14:01:01,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-04-13 14:01:01,343 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:01,343 INFO L355 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 28, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:01,343 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:01,344 INFO L82 PathProgramCache]: Analyzing trace with hash 582408061, 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 14:01:01,346 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:01,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:01,665 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:01,665 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-13 14:01:01,665 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:01,665 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 14:01:01,665 INFO L182 omatonBuilderFactory]: Interpolants [13824#(= main_~i~0 18), 13825#(= main_~i~0 19), 13826#(= main_~i~0 20), 13827#(= main_~i~0 21), 13828#(= main_~i~0 22), 13829#(= main_~i~0 23), 13830#(= main_~i~0 24), 13831#(= main_~i~0 25), 13832#(= main_~i~0 26), 13833#(= main_~i~0 27), 13834#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 13802#true, 13803#false, 13806#(= 0 main_~i~0), 13807#(= main_~i~0 1), 13808#(= 2 main_~i~0), 13809#(= main_~i~0 3), 13810#(= main_~i~0 4), 13811#(= main_~i~0 5), 13812#(= main_~i~0 6), 13813#(= main_~i~0 7), 13814#(= main_~i~0 8), 13815#(= main_~i~0 9), 13816#(= main_~i~0 10), 13817#(= main_~i~0 11), 13818#(= main_~i~0 12), 13819#(= main_~i~0 13), 13820#(= main_~i~0 14), 13821#(= main_~i~0 15), 13822#(= main_~i~0 16), 13823#(= main_~i~0 17)] [2018-04-13 14:01:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:01,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-13 14:01:01,666 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-13 14:01:01,666 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2018-04-13 14:01:01,666 INFO L87 Difference]: Start difference. First operand 418 states and 558 transitions. Second operand 31 states. [2018-04-13 14:01:04,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:04,621 INFO L93 Difference]: Finished difference Result 461 states and 606 transitions. [2018-04-13 14:01:04,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-13 14:01:04,622 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 148 [2018-04-13 14:01:04,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:04,623 INFO L225 Difference]: With dead ends: 461 [2018-04-13 14:01:04,623 INFO L226 Difference]: Without dead ends: 461 [2018-04-13 14:01:04,623 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 14:01:04,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2018-04-13 14:01:04,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 432. [2018-04-13 14:01:04,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-04-13 14:01:04,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 577 transitions. [2018-04-13 14:01:04,628 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 577 transitions. Word has length 148 [2018-04-13 14:01:04,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:04,628 INFO L459 AbstractCegarLoop]: Abstraction has 432 states and 577 transitions. [2018-04-13 14:01:04,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-13 14:01:04,628 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 577 transitions. [2018-04-13 14:01:04,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-04-13 14:01:04,629 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:04,629 INFO L355 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:04,629 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:04,629 INFO L82 PathProgramCache]: Analyzing trace with hash -637071978, 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 14:01:04,633 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:04,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:04,960 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:04,960 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-04-13 14:01:04,960 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:04,960 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 14:01:04,961 INFO L182 omatonBuilderFactory]: Interpolants [14728#true, 14729#false, 14732#(= 0 main_~i~0), 14733#(= main_~i~0 1), 14734#(= 2 main_~i~0), 14735#(= main_~i~0 3), 14736#(= main_~i~0 4), 14737#(= main_~i~0 5), 14738#(= main_~i~0 6), 14739#(= main_~i~0 7), 14740#(= main_~i~0 8), 14741#(= main_~i~0 9), 14742#(= main_~i~0 10), 14743#(= main_~i~0 11), 14744#(= main_~i~0 12), 14745#(= main_~i~0 13), 14746#(= main_~i~0 14), 14747#(= main_~i~0 15), 14748#(= main_~i~0 16), 14749#(= main_~i~0 17), 14750#(= main_~i~0 18), 14751#(= main_~i~0 19), 14752#(= main_~i~0 20), 14753#(= main_~i~0 21), 14754#(= main_~i~0 22), 14755#(= main_~i~0 23), 14756#(= main_~i~0 24), 14757#(= main_~i~0 25), 14758#(= main_~i~0 26), 14759#(= main_~i~0 27), 14760#(= main_~i~0 28), 14761#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:01:04,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:04,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-13 14:01:04,961 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-13 14:01:04,962 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=902, Unknown=0, NotChecked=0, Total=992 [2018-04-13 14:01:04,962 INFO L87 Difference]: Start difference. First operand 432 states and 577 transitions. Second operand 32 states. [2018-04-13 14:01:07,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:07,802 INFO L93 Difference]: Finished difference Result 476 states and 626 transitions. [2018-04-13 14:01:07,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-13 14:01:07,802 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 153 [2018-04-13 14:01:07,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:07,803 INFO L225 Difference]: With dead ends: 476 [2018-04-13 14:01:07,803 INFO L226 Difference]: Without dead ends: 476 [2018-04-13 14:01:07,803 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 14:01:07,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2018-04-13 14:01:07,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 446. [2018-04-13 14:01:07,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2018-04-13 14:01:07,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 596 transitions. [2018-04-13 14:01:07,807 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 596 transitions. Word has length 153 [2018-04-13 14:01:07,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:07,807 INFO L459 AbstractCegarLoop]: Abstraction has 446 states and 596 transitions. [2018-04-13 14:01:07,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-13 14:01:07,807 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 596 transitions. [2018-04-13 14:01:07,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-04-13 14:01:07,808 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:07,808 INFO L355 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 30, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:07,808 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:07,808 INFO L82 PathProgramCache]: Analyzing trace with hash -2062434531, 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 14:01:07,810 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:08,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 2265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:08,078 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:08,078 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-04-13 14:01:08,079 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:08,079 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 14:01:08,079 INFO L182 omatonBuilderFactory]: Interpolants [15684#true, 15685#false, 15688#(= 0 main_~i~0), 15689#(= main_~i~0 1), 15690#(= 2 main_~i~0), 15691#(= main_~i~0 3), 15692#(= main_~i~0 4), 15693#(= main_~i~0 5), 15694#(= main_~i~0 6), 15695#(= main_~i~0 7), 15696#(= main_~i~0 8), 15697#(= main_~i~0 9), 15698#(= main_~i~0 10), 15699#(= main_~i~0 11), 15700#(= main_~i~0 12), 15701#(= main_~i~0 13), 15702#(= main_~i~0 14), 15703#(= main_~i~0 15), 15704#(= main_~i~0 16), 15705#(= main_~i~0 17), 15706#(= main_~i~0 18), 15707#(= main_~i~0 19), 15708#(= main_~i~0 20), 15709#(= main_~i~0 21), 15710#(= main_~i~0 22), 15711#(= main_~i~0 23), 15712#(= main_~i~0 24), 15713#(= main_~i~0 25), 15714#(= main_~i~0 26), 15715#(= main_~i~0 27), 15716#(= main_~i~0 28), 15717#(= main_~i~0 29), 15718#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:01:08,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 2265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:08,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-13 14:01:08,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-13 14:01:08,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=963, Unknown=0, NotChecked=0, Total=1056 [2018-04-13 14:01:08,080 INFO L87 Difference]: Start difference. First operand 446 states and 596 transitions. Second operand 33 states. [2018-04-13 14:01:11,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:11,104 INFO L93 Difference]: Finished difference Result 491 states and 646 transitions. [2018-04-13 14:01:11,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-13 14:01:11,104 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 158 [2018-04-13 14:01:11,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:11,106 INFO L225 Difference]: With dead ends: 491 [2018-04-13 14:01:11,106 INFO L226 Difference]: Without dead ends: 491 [2018-04-13 14:01:11,107 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 14:01:11,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2018-04-13 14:01:11,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 460. [2018-04-13 14:01:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2018-04-13 14:01:11,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 615 transitions. [2018-04-13 14:01:11,112 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 615 transitions. Word has length 158 [2018-04-13 14:01:11,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:11,113 INFO L459 AbstractCegarLoop]: Abstraction has 460 states and 615 transitions. [2018-04-13 14:01:11,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-13 14:01:11,113 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 615 transitions. [2018-04-13 14:01:11,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-04-13 14:01:11,114 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:11,114 INFO L355 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:11,114 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:11,115 INFO L82 PathProgramCache]: Analyzing trace with hash 543943158, 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 14:01:11,118 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:11,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:11,462 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:11,462 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-04-13 14:01:11,462 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:11,463 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 14:01:11,463 INFO L182 omatonBuilderFactory]: Interpolants [16704#(= main_~i~0 30), 16705#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 16670#true, 16671#false, 16674#(= 0 main_~i~0), 16675#(= main_~i~0 1), 16676#(= 2 main_~i~0), 16677#(= main_~i~0 3), 16678#(= main_~i~0 4), 16679#(= main_~i~0 5), 16680#(= main_~i~0 6), 16681#(= main_~i~0 7), 16682#(= main_~i~0 8), 16683#(= main_~i~0 9), 16684#(= main_~i~0 10), 16685#(= main_~i~0 11), 16686#(= main_~i~0 12), 16687#(= main_~i~0 13), 16688#(= main_~i~0 14), 16689#(= main_~i~0 15), 16690#(= main_~i~0 16), 16691#(= main_~i~0 17), 16692#(= main_~i~0 18), 16693#(= main_~i~0 19), 16694#(= main_~i~0 20), 16695#(= main_~i~0 21), 16696#(= main_~i~0 22), 16697#(= main_~i~0 23), 16698#(= main_~i~0 24), 16699#(= main_~i~0 25), 16700#(= main_~i~0 26), 16701#(= main_~i~0 27), 16702#(= main_~i~0 28), 16703#(= main_~i~0 29)] [2018-04-13 14:01:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:11,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-13 14:01:11,464 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-13 14:01:11,464 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1026, Unknown=0, NotChecked=0, Total=1122 [2018-04-13 14:01:11,464 INFO L87 Difference]: Start difference. First operand 460 states and 615 transitions. Second operand 34 states. [2018-04-13 14:01:14,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:14,750 INFO L93 Difference]: Finished difference Result 506 states and 666 transitions. [2018-04-13 14:01:14,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-13 14:01:14,750 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 163 [2018-04-13 14:01:14,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:14,752 INFO L225 Difference]: With dead ends: 506 [2018-04-13 14:01:14,752 INFO L226 Difference]: Without dead ends: 506 [2018-04-13 14:01:14,752 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 14:01:14,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2018-04-13 14:01:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 474. [2018-04-13 14:01:14,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2018-04-13 14:01:14,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 634 transitions. [2018-04-13 14:01:14,756 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 634 transitions. Word has length 163 [2018-04-13 14:01:14,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:14,756 INFO L459 AbstractCegarLoop]: Abstraction has 474 states and 634 transitions. [2018-04-13 14:01:14,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-13 14:01:14,756 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 634 transitions. [2018-04-13 14:01:14,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-04-13 14:01:14,757 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:14,757 INFO L355 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:14,757 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:14,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1423466819, 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 14:01:14,760 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:15,131 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:15,131 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-13 14:01:15,132 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:15,132 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 14:01:15,132 INFO L182 omatonBuilderFactory]: Interpolants [17686#true, 17687#false, 17690#(= 0 main_~i~0), 17691#(= main_~i~0 1), 17692#(= 2 main_~i~0), 17693#(= main_~i~0 3), 17694#(= main_~i~0 4), 17695#(= main_~i~0 5), 17696#(= main_~i~0 6), 17697#(= main_~i~0 7), 17698#(= main_~i~0 8), 17699#(= main_~i~0 9), 17700#(= main_~i~0 10), 17701#(= main_~i~0 11), 17702#(= main_~i~0 12), 17703#(= main_~i~0 13), 17704#(= main_~i~0 14), 17705#(= main_~i~0 15), 17706#(= main_~i~0 16), 17707#(= main_~i~0 17), 17708#(= main_~i~0 18), 17709#(= main_~i~0 19), 17710#(= main_~i~0 20), 17711#(= main_~i~0 21), 17712#(= main_~i~0 22), 17713#(= main_~i~0 23), 17714#(= main_~i~0 24), 17715#(= main_~i~0 25), 17716#(= main_~i~0 26), 17717#(= main_~i~0 27), 17718#(= main_~i~0 28), 17719#(= main_~i~0 29), 17720#(= main_~i~0 30), 17721#(= main_~i~0 31), 17722#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:01:15,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:15,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-13 14:01:15,133 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-13 14:01:15,133 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1091, Unknown=0, NotChecked=0, Total=1190 [2018-04-13 14:01:15,133 INFO L87 Difference]: Start difference. First operand 474 states and 634 transitions. Second operand 35 states. [2018-04-13 14:01:18,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:18,524 INFO L93 Difference]: Finished difference Result 521 states and 686 transitions. [2018-04-13 14:01:18,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-13 14:01:18,524 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 168 [2018-04-13 14:01:18,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:18,525 INFO L225 Difference]: With dead ends: 521 [2018-04-13 14:01:18,526 INFO L226 Difference]: Without dead ends: 521 [2018-04-13 14:01:18,526 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=1091, Unknown=0, NotChecked=0, Total=1190 [2018-04-13 14:01:18,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2018-04-13 14:01:18,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 488. [2018-04-13 14:01:18,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-04-13 14:01:18,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 653 transitions. [2018-04-13 14:01:18,530 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 653 transitions. Word has length 168 [2018-04-13 14:01:18,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:18,530 INFO L459 AbstractCegarLoop]: Abstraction has 488 states and 653 transitions. [2018-04-13 14:01:18,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-13 14:01:18,530 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 653 transitions. [2018-04-13 14:01:18,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-04-13 14:01:18,531 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:18,531 INFO L355 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 33, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:18,531 INFO L408 AbstractCegarLoop]: === Iteration 34 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:18,531 INFO L82 PathProgramCache]: Analyzing trace with hash 422628950, 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 14:01:18,533 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:18,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 0 proven. 2739 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:18,903 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:18,903 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-04-13 14:01:18,903 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:18,903 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 14:01:18,903 INFO L182 omatonBuilderFactory]: Interpolants [18752#(= main_~i~0 16), 18753#(= main_~i~0 17), 18754#(= main_~i~0 18), 18755#(= main_~i~0 19), 18756#(= main_~i~0 20), 18757#(= main_~i~0 21), 18758#(= main_~i~0 22), 18759#(= main_~i~0 23), 18760#(= main_~i~0 24), 18761#(= main_~i~0 25), 18762#(= main_~i~0 26), 18763#(= main_~i~0 27), 18764#(= main_~i~0 28), 18765#(= main_~i~0 29), 18766#(= main_~i~0 30), 18767#(= main_~i~0 31), 18768#(= main_~i~0 32), 18769#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 18732#true, 18733#false, 18736#(= 0 main_~i~0), 18737#(= main_~i~0 1), 18738#(= 2 main_~i~0), 18739#(= main_~i~0 3), 18740#(= main_~i~0 4), 18741#(= main_~i~0 5), 18742#(= main_~i~0 6), 18743#(= main_~i~0 7), 18744#(= main_~i~0 8), 18745#(= main_~i~0 9), 18746#(= main_~i~0 10), 18747#(= main_~i~0 11), 18748#(= main_~i~0 12), 18749#(= main_~i~0 13), 18750#(= main_~i~0 14), 18751#(= main_~i~0 15)] [2018-04-13 14:01:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 0 proven. 2739 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:18,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-13 14:01:18,904 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-13 14:01:18,904 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=1158, Unknown=0, NotChecked=0, Total=1260 [2018-04-13 14:01:18,904 INFO L87 Difference]: Start difference. First operand 488 states and 653 transitions. Second operand 36 states. [2018-04-13 14:01:22,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:22,486 INFO L93 Difference]: Finished difference Result 536 states and 706 transitions. [2018-04-13 14:01:22,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-13 14:01:22,486 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 173 [2018-04-13 14:01:22,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:22,487 INFO L225 Difference]: With dead ends: 536 [2018-04-13 14:01:22,487 INFO L226 Difference]: Without dead ends: 536 [2018-04-13 14:01:22,488 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=1158, Unknown=0, NotChecked=0, Total=1260 [2018-04-13 14:01:22,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-04-13 14:01:22,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 502. [2018-04-13 14:01:22,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-04-13 14:01:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 672 transitions. [2018-04-13 14:01:22,492 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 672 transitions. Word has length 173 [2018-04-13 14:01:22,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:22,492 INFO L459 AbstractCegarLoop]: Abstraction has 502 states and 672 transitions. [2018-04-13 14:01:22,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-13 14:01:22,492 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 672 transitions. [2018-04-13 14:01:22,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-04-13 14:01:22,493 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:22,493 INFO L355 BasicCegarLoop]: trace histogram [35, 35, 34, 34, 34, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:22,493 INFO L408 AbstractCegarLoop]: === Iteration 35 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:22,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1101166173, 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 14:01:22,495 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:22,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2907 backedges. 0 proven. 2907 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:22,818 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:22,818 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-04-13 14:01:22,818 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:22,818 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 14:01:22,819 INFO L182 omatonBuilderFactory]: Interpolants [19840#(= main_~i~0 28), 19841#(= main_~i~0 29), 19842#(= main_~i~0 30), 19843#(= main_~i~0 31), 19844#(= main_~i~0 32), 19845#(= main_~i~0 33), 19846#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 19808#true, 19809#false, 19812#(= 0 main_~i~0), 19813#(= main_~i~0 1), 19814#(= 2 main_~i~0), 19815#(= main_~i~0 3), 19816#(= main_~i~0 4), 19817#(= main_~i~0 5), 19818#(= main_~i~0 6), 19819#(= main_~i~0 7), 19820#(= main_~i~0 8), 19821#(= main_~i~0 9), 19822#(= main_~i~0 10), 19823#(= main_~i~0 11), 19824#(= main_~i~0 12), 19825#(= main_~i~0 13), 19826#(= main_~i~0 14), 19827#(= main_~i~0 15), 19828#(= main_~i~0 16), 19829#(= main_~i~0 17), 19830#(= main_~i~0 18), 19831#(= main_~i~0 19), 19832#(= main_~i~0 20), 19833#(= main_~i~0 21), 19834#(= main_~i~0 22), 19835#(= main_~i~0 23), 19836#(= main_~i~0 24), 19837#(= main_~i~0 25), 19838#(= main_~i~0 26), 19839#(= main_~i~0 27)] [2018-04-13 14:01:22,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2907 backedges. 0 proven. 2907 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:22,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-13 14:01:22,819 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-13 14:01:22,819 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2018-04-13 14:01:22,819 INFO L87 Difference]: Start difference. First operand 502 states and 672 transitions. Second operand 37 states. [2018-04-13 14:01:26,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:26,630 INFO L93 Difference]: Finished difference Result 551 states and 726 transitions. [2018-04-13 14:01:26,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-13 14:01:26,630 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 178 [2018-04-13 14:01:26,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:26,631 INFO L225 Difference]: With dead ends: 551 [2018-04-13 14:01:26,631 INFO L226 Difference]: Without dead ends: 551 [2018-04-13 14:01:26,631 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2018-04-13 14:01:26,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2018-04-13 14:01:26,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 516. [2018-04-13 14:01:26,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2018-04-13 14:01:26,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 691 transitions. [2018-04-13 14:01:26,636 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 691 transitions. Word has length 178 [2018-04-13 14:01:26,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:26,636 INFO L459 AbstractCegarLoop]: Abstraction has 516 states and 691 transitions. [2018-04-13 14:01:26,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-13 14:01:26,636 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 691 transitions. [2018-04-13 14:01:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-04-13 14:01:26,637 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:26,637 INFO L355 BasicCegarLoop]: trace histogram [36, 36, 35, 35, 35, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:26,637 INFO L408 AbstractCegarLoop]: === Iteration 36 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:26,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1911274166, 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 14:01:26,640 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:27,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 0 proven. 3080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:27,058 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:27,058 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-04-13 14:01:27,058 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:27,059 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 14:01:27,059 INFO L182 omatonBuilderFactory]: Interpolants [20928#(= main_~i~0 10), 20929#(= main_~i~0 11), 20930#(= main_~i~0 12), 20931#(= main_~i~0 13), 20932#(= main_~i~0 14), 20933#(= main_~i~0 15), 20934#(= main_~i~0 16), 20935#(= main_~i~0 17), 20936#(= main_~i~0 18), 20937#(= main_~i~0 19), 20938#(= main_~i~0 20), 20939#(= main_~i~0 21), 20940#(= main_~i~0 22), 20941#(= main_~i~0 23), 20942#(= main_~i~0 24), 20943#(= main_~i~0 25), 20944#(= main_~i~0 26), 20945#(= main_~i~0 27), 20946#(= main_~i~0 28), 20947#(= main_~i~0 29), 20948#(= main_~i~0 30), 20949#(= main_~i~0 31), 20950#(= main_~i~0 32), 20951#(= main_~i~0 33), 20952#(= main_~i~0 34), 20953#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 20914#true, 20915#false, 20918#(= 0 main_~i~0), 20919#(= main_~i~0 1), 20920#(= 2 main_~i~0), 20921#(= main_~i~0 3), 20922#(= main_~i~0 4), 20923#(= main_~i~0 5), 20924#(= main_~i~0 6), 20925#(= main_~i~0 7), 20926#(= main_~i~0 8), 20927#(= main_~i~0 9)] [2018-04-13 14:01:27,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 0 proven. 3080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:27,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-04-13 14:01:27,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-04-13 14:01:27,060 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1298, Unknown=0, NotChecked=0, Total=1406 [2018-04-13 14:01:27,060 INFO L87 Difference]: Start difference. First operand 516 states and 691 transitions. Second operand 38 states. [2018-04-13 14:01:31,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:31,195 INFO L93 Difference]: Finished difference Result 566 states and 746 transitions. [2018-04-13 14:01:31,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-04-13 14:01:31,195 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 183 [2018-04-13 14:01:31,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:31,196 INFO L225 Difference]: With dead ends: 566 [2018-04-13 14:01:31,197 INFO L226 Difference]: Without dead ends: 566 [2018-04-13 14:01:31,197 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 14:01:31,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2018-04-13 14:01:31,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 530. [2018-04-13 14:01:31,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2018-04-13 14:01:31,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 710 transitions. [2018-04-13 14:01:31,201 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 710 transitions. Word has length 183 [2018-04-13 14:01:31,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:31,201 INFO L459 AbstractCegarLoop]: Abstraction has 530 states and 710 transitions. [2018-04-13 14:01:31,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-04-13 14:01:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 710 transitions. [2018-04-13 14:01:31,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-04-13 14:01:31,202 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:31,202 INFO L355 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:31,202 INFO L408 AbstractCegarLoop]: === Iteration 37 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:31,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1465104899, 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 14:01:31,205 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:31,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3258 backedges. 0 proven. 3258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:31,576 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:31,576 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-04-13 14:01:31,577 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:31,577 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 14:01:31,577 INFO L182 omatonBuilderFactory]: Interpolants [22080#(= main_~i~0 26), 22081#(= main_~i~0 27), 22082#(= main_~i~0 28), 22083#(= main_~i~0 29), 22084#(= main_~i~0 30), 22085#(= main_~i~0 31), 22086#(= main_~i~0 32), 22087#(= main_~i~0 33), 22088#(= main_~i~0 34), 22089#(= main_~i~0 35), 22090#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 22050#true, 22051#false, 22054#(= 0 main_~i~0), 22055#(= main_~i~0 1), 22056#(= 2 main_~i~0), 22057#(= main_~i~0 3), 22058#(= main_~i~0 4), 22059#(= main_~i~0 5), 22060#(= main_~i~0 6), 22061#(= main_~i~0 7), 22062#(= main_~i~0 8), 22063#(= main_~i~0 9), 22064#(= main_~i~0 10), 22065#(= main_~i~0 11), 22066#(= main_~i~0 12), 22067#(= main_~i~0 13), 22068#(= main_~i~0 14), 22069#(= main_~i~0 15), 22070#(= main_~i~0 16), 22071#(= main_~i~0 17), 22072#(= main_~i~0 18), 22073#(= main_~i~0 19), 22074#(= main_~i~0 20), 22075#(= main_~i~0 21), 22076#(= main_~i~0 22), 22077#(= main_~i~0 23), 22078#(= main_~i~0 24), 22079#(= main_~i~0 25)] [2018-04-13 14:01:31,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3258 backedges. 0 proven. 3258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:31,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-04-13 14:01:31,577 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-04-13 14:01:31,577 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1371, Unknown=0, NotChecked=0, Total=1482 [2018-04-13 14:01:31,578 INFO L87 Difference]: Start difference. First operand 530 states and 710 transitions. Second operand 39 states. [2018-04-13 14:01:35,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:35,865 INFO L93 Difference]: Finished difference Result 581 states and 766 transitions. [2018-04-13 14:01:35,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-13 14:01:35,865 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 188 [2018-04-13 14:01:35,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:35,866 INFO L225 Difference]: With dead ends: 581 [2018-04-13 14:01:35,866 INFO L226 Difference]: Without dead ends: 581 [2018-04-13 14:01:35,867 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 14:01:35,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2018-04-13 14:01:35,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 544. [2018-04-13 14:01:35,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2018-04-13 14:01:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 729 transitions. [2018-04-13 14:01:35,870 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 729 transitions. Word has length 188 [2018-04-13 14:01:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:35,870 INFO L459 AbstractCegarLoop]: Abstraction has 544 states and 729 transitions. [2018-04-13 14:01:35,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-04-13 14:01:35,871 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 729 transitions. [2018-04-13 14:01:35,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-04-13 14:01:35,872 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:35,872 INFO L355 BasicCegarLoop]: trace histogram [38, 38, 37, 37, 37, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:35,872 INFO L408 AbstractCegarLoop]: === Iteration 38 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:35,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1420996374, 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) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 14:01:35,874 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3441 backedges. 0 proven. 3441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:36,249 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:36,249 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-04-13 14:01:36,249 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:36,249 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 14:01:36,250 INFO L182 omatonBuilderFactory]: Interpolants [23232#(= main_~i~0 12), 23233#(= main_~i~0 13), 23234#(= main_~i~0 14), 23235#(= main_~i~0 15), 23236#(= main_~i~0 16), 23237#(= main_~i~0 17), 23238#(= main_~i~0 18), 23239#(= main_~i~0 19), 23240#(= main_~i~0 20), 23241#(= main_~i~0 21), 23242#(= main_~i~0 22), 23243#(= main_~i~0 23), 23244#(= main_~i~0 24), 23245#(= main_~i~0 25), 23246#(= main_~i~0 26), 23247#(= main_~i~0 27), 23248#(= main_~i~0 28), 23249#(= main_~i~0 29), 23250#(= main_~i~0 30), 23251#(= main_~i~0 31), 23252#(= main_~i~0 32), 23253#(= main_~i~0 33), 23254#(= main_~i~0 34), 23255#(= main_~i~0 35), 23256#(= main_~i~0 36), 23257#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 23216#true, 23217#false, 23220#(= 0 main_~i~0), 23221#(= main_~i~0 1), 23222#(= 2 main_~i~0), 23223#(= main_~i~0 3), 23224#(= main_~i~0 4), 23225#(= main_~i~0 5), 23226#(= main_~i~0 6), 23227#(= main_~i~0 7), 23228#(= main_~i~0 8), 23229#(= main_~i~0 9), 23230#(= main_~i~0 10), 23231#(= main_~i~0 11)] [2018-04-13 14:01:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3441 backedges. 0 proven. 3441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:36,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-13 14:01:36,250 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-13 14:01:36,250 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1446, Unknown=0, NotChecked=0, Total=1560 [2018-04-13 14:01:36,250 INFO L87 Difference]: Start difference. First operand 544 states and 729 transitions. Second operand 40 states. [2018-04-13 14:01:40,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:40,797 INFO L93 Difference]: Finished difference Result 596 states and 786 transitions. [2018-04-13 14:01:40,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-13 14:01:40,797 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 193 [2018-04-13 14:01:40,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:40,799 INFO L225 Difference]: With dead ends: 596 [2018-04-13 14:01:40,799 INFO L226 Difference]: Without dead ends: 596 [2018-04-13 14:01:40,799 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 14:01:40,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2018-04-13 14:01:40,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 558. [2018-04-13 14:01:40,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2018-04-13 14:01:40,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 748 transitions. [2018-04-13 14:01:40,805 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 748 transitions. Word has length 193 [2018-04-13 14:01:40,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:40,805 INFO L459 AbstractCegarLoop]: Abstraction has 558 states and 748 transitions. [2018-04-13 14:01:40,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-13 14:01:40,806 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 748 transitions. [2018-04-13 14:01:40,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-04-13 14:01:40,807 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:40,807 INFO L355 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:40,807 INFO L408 AbstractCegarLoop]: === Iteration 39 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:40,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1813049955, 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 14:01:40,810 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:41,187 INFO L134 CoverageAnalysis]: Checked inductivity of 3629 backedges. 0 proven. 3629 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:41,203 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:41,203 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-04-13 14:01:41,203 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:41,203 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 14:01:41,204 INFO L182 omatonBuilderFactory]: Interpolants [24448#(= main_~i~0 32), 24449#(= main_~i~0 33), 24450#(= main_~i~0 34), 24451#(= main_~i~0 35), 24452#(= main_~i~0 36), 24453#(= main_~i~0 37), 24454#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 24412#true, 24413#false, 24416#(= 0 main_~i~0), 24417#(= main_~i~0 1), 24418#(= 2 main_~i~0), 24419#(= main_~i~0 3), 24420#(= main_~i~0 4), 24421#(= main_~i~0 5), 24422#(= main_~i~0 6), 24423#(= main_~i~0 7), 24424#(= main_~i~0 8), 24425#(= main_~i~0 9), 24426#(= main_~i~0 10), 24427#(= main_~i~0 11), 24428#(= main_~i~0 12), 24429#(= main_~i~0 13), 24430#(= main_~i~0 14), 24431#(= main_~i~0 15), 24432#(= main_~i~0 16), 24433#(= main_~i~0 17), 24434#(= main_~i~0 18), 24435#(= main_~i~0 19), 24436#(= main_~i~0 20), 24437#(= main_~i~0 21), 24438#(= main_~i~0 22), 24439#(= main_~i~0 23), 24440#(= main_~i~0 24), 24441#(= main_~i~0 25), 24442#(= main_~i~0 26), 24443#(= main_~i~0 27), 24444#(= main_~i~0 28), 24445#(= main_~i~0 29), 24446#(= main_~i~0 30), 24447#(= main_~i~0 31)] [2018-04-13 14:01:41,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3629 backedges. 0 proven. 3629 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:41,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-04-13 14:01:41,204 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-04-13 14:01:41,204 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640 [2018-04-13 14:01:41,205 INFO L87 Difference]: Start difference. First operand 558 states and 748 transitions. Second operand 41 states. [2018-04-13 14:01:45,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:45,956 INFO L93 Difference]: Finished difference Result 611 states and 806 transitions. [2018-04-13 14:01:45,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-13 14:01:45,956 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 198 [2018-04-13 14:01:45,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:45,957 INFO L225 Difference]: With dead ends: 611 [2018-04-13 14:01:45,957 INFO L226 Difference]: Without dead ends: 611 [2018-04-13 14:01:45,958 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 14:01:45,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2018-04-13 14:01:45,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 572. [2018-04-13 14:01:45,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2018-04-13 14:01:45,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 767 transitions. [2018-04-13 14:01:45,962 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 767 transitions. Word has length 198 [2018-04-13 14:01:45,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:45,962 INFO L459 AbstractCegarLoop]: Abstraction has 572 states and 767 transitions. [2018-04-13 14:01:45,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-04-13 14:01:45,962 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 767 transitions. [2018-04-13 14:01:45,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-04-13 14:01:45,963 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:45,963 INFO L355 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:45,963 INFO L408 AbstractCegarLoop]: === Iteration 40 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:45,963 INFO L82 PathProgramCache]: Analyzing trace with hash -937710730, 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 14:01:45,965 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 0 proven. 3822 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:46,378 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:46,378 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-04-13 14:01:46,378 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:46,378 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 14:01:46,378 INFO L182 omatonBuilderFactory]: Interpolants [25664#(= main_~i~0 22), 25665#(= main_~i~0 23), 25666#(= main_~i~0 24), 25667#(= main_~i~0 25), 25668#(= main_~i~0 26), 25669#(= main_~i~0 27), 25670#(= main_~i~0 28), 25671#(= main_~i~0 29), 25672#(= main_~i~0 30), 25673#(= main_~i~0 31), 25674#(= main_~i~0 32), 25675#(= main_~i~0 33), 25676#(= main_~i~0 34), 25677#(= main_~i~0 35), 25678#(= main_~i~0 36), 25679#(= main_~i~0 37), 25680#(= main_~i~0 38), 25681#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 25638#true, 25639#false, 25642#(= 0 main_~i~0), 25643#(= main_~i~0 1), 25644#(= 2 main_~i~0), 25645#(= main_~i~0 3), 25646#(= main_~i~0 4), 25647#(= main_~i~0 5), 25648#(= main_~i~0 6), 25649#(= main_~i~0 7), 25650#(= main_~i~0 8), 25651#(= main_~i~0 9), 25652#(= main_~i~0 10), 25653#(= main_~i~0 11), 25654#(= main_~i~0 12), 25655#(= main_~i~0 13), 25656#(= main_~i~0 14), 25657#(= main_~i~0 15), 25658#(= main_~i~0 16), 25659#(= main_~i~0 17), 25660#(= main_~i~0 18), 25661#(= main_~i~0 19), 25662#(= main_~i~0 20), 25663#(= main_~i~0 21)] [2018-04-13 14:01:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 0 proven. 3822 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:46,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-13 14:01:46,379 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-13 14:01:46,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1602, Unknown=0, NotChecked=0, Total=1722 [2018-04-13 14:01:46,379 INFO L87 Difference]: Start difference. First operand 572 states and 767 transitions. Second operand 42 states. [2018-04-13 14:01:51,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:51,369 INFO L93 Difference]: Finished difference Result 626 states and 826 transitions. [2018-04-13 14:01:51,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-13 14:01:51,369 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 203 [2018-04-13 14:01:51,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:51,371 INFO L225 Difference]: With dead ends: 626 [2018-04-13 14:01:51,371 INFO L226 Difference]: Without dead ends: 626 [2018-04-13 14:01:51,371 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 14:01:51,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2018-04-13 14:01:51,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 586. [2018-04-13 14:01:51,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2018-04-13 14:01:51,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 786 transitions. [2018-04-13 14:01:51,375 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 786 transitions. Word has length 203 [2018-04-13 14:01:51,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:51,375 INFO L459 AbstractCegarLoop]: Abstraction has 586 states and 786 transitions. [2018-04-13 14:01:51,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-13 14:01:51,375 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 786 transitions. [2018-04-13 14:01:51,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-04-13 14:01:51,376 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:51,376 INFO L355 BasicCegarLoop]: trace histogram [41, 41, 40, 40, 40, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:51,376 INFO L408 AbstractCegarLoop]: === Iteration 41 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:51,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1433088707, 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 14:01:51,379 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4020 backedges. 0 proven. 4020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:51,844 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:51,844 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-04-13 14:01:51,844 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:51,844 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 14:01:51,845 INFO L182 omatonBuilderFactory]: Interpolants [26894#true, 26895#false, 26898#(= 0 main_~i~0), 26899#(= main_~i~0 1), 26900#(= 2 main_~i~0), 26901#(= main_~i~0 3), 26902#(= main_~i~0 4), 26903#(= main_~i~0 5), 26904#(= main_~i~0 6), 26905#(= main_~i~0 7), 26906#(= main_~i~0 8), 26907#(= main_~i~0 9), 26908#(= main_~i~0 10), 26909#(= main_~i~0 11), 26910#(= main_~i~0 12), 26911#(= main_~i~0 13), 26912#(= main_~i~0 14), 26913#(= main_~i~0 15), 26914#(= main_~i~0 16), 26915#(= main_~i~0 17), 26916#(= main_~i~0 18), 26917#(= main_~i~0 19), 26918#(= main_~i~0 20), 26919#(= main_~i~0 21), 26920#(= main_~i~0 22), 26921#(= main_~i~0 23), 26922#(= main_~i~0 24), 26923#(= main_~i~0 25), 26924#(= main_~i~0 26), 26925#(= main_~i~0 27), 26926#(= main_~i~0 28), 26927#(= main_~i~0 29), 26928#(= main_~i~0 30), 26929#(= main_~i~0 31), 26930#(= main_~i~0 32), 26931#(= main_~i~0 33), 26932#(= main_~i~0 34), 26933#(= main_~i~0 35), 26934#(= main_~i~0 36), 26935#(= main_~i~0 37), 26936#(= main_~i~0 38), 26937#(= main_~i~0 39), 26938#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:01:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4020 backedges. 0 proven. 4020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:51,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-13 14:01:51,845 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-13 14:01:51,845 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1683, Unknown=0, NotChecked=0, Total=1806 [2018-04-13 14:01:51,845 INFO L87 Difference]: Start difference. First operand 586 states and 786 transitions. Second operand 43 states. [2018-04-13 14:01:57,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:01:57,064 INFO L93 Difference]: Finished difference Result 641 states and 846 transitions. [2018-04-13 14:01:57,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-04-13 14:01:57,064 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 208 [2018-04-13 14:01:57,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:01:57,066 INFO L225 Difference]: With dead ends: 641 [2018-04-13 14:01:57,066 INFO L226 Difference]: Without dead ends: 641 [2018-04-13 14:01:57,066 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=1683, Unknown=0, NotChecked=0, Total=1806 [2018-04-13 14:01:57,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2018-04-13 14:01:57,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 600. [2018-04-13 14:01:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2018-04-13 14:01:57,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 805 transitions. [2018-04-13 14:01:57,073 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 805 transitions. Word has length 208 [2018-04-13 14:01:57,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:01:57,074 INFO L459 AbstractCegarLoop]: Abstraction has 600 states and 805 transitions. [2018-04-13 14:01:57,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-13 14:01:57,074 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 805 transitions. [2018-04-13 14:01:57,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-04-13 14:01:57,075 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:01:57,075 INFO L355 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 41, 1, 1, 1, 1, 1, 1] [2018-04-13 14:01:57,075 INFO L408 AbstractCegarLoop]: === Iteration 42 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:01:57,075 INFO L82 PathProgramCache]: Analyzing trace with hash 255635414, 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 14:01:57,077 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:01:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:01:57,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4223 backedges. 0 proven. 4223 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:57,517 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:01:57,517 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-04-13 14:01:57,517 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:01:57,517 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 14:01:57,517 INFO L182 omatonBuilderFactory]: Interpolants [28224#(= main_~i~0 40), 28225#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 28180#true, 28181#false, 28184#(= 0 main_~i~0), 28185#(= main_~i~0 1), 28186#(= 2 main_~i~0), 28187#(= main_~i~0 3), 28188#(= main_~i~0 4), 28189#(= main_~i~0 5), 28190#(= main_~i~0 6), 28191#(= main_~i~0 7), 28192#(= main_~i~0 8), 28193#(= main_~i~0 9), 28194#(= main_~i~0 10), 28195#(= main_~i~0 11), 28196#(= main_~i~0 12), 28197#(= main_~i~0 13), 28198#(= main_~i~0 14), 28199#(= main_~i~0 15), 28200#(= main_~i~0 16), 28201#(= main_~i~0 17), 28202#(= main_~i~0 18), 28203#(= main_~i~0 19), 28204#(= main_~i~0 20), 28205#(= main_~i~0 21), 28206#(= main_~i~0 22), 28207#(= main_~i~0 23), 28208#(= main_~i~0 24), 28209#(= main_~i~0 25), 28210#(= main_~i~0 26), 28211#(= main_~i~0 27), 28212#(= main_~i~0 28), 28213#(= main_~i~0 29), 28214#(= main_~i~0 30), 28215#(= main_~i~0 31), 28216#(= main_~i~0 32), 28217#(= main_~i~0 33), 28218#(= main_~i~0 34), 28219#(= main_~i~0 35), 28220#(= main_~i~0 36), 28221#(= main_~i~0 37), 28222#(= main_~i~0 38), 28223#(= main_~i~0 39)] [2018-04-13 14:01:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4223 backedges. 0 proven. 4223 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:01:57,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-04-13 14:01:57,518 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-04-13 14:01:57,518 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1766, Unknown=0, NotChecked=0, Total=1892 [2018-04-13 14:01:57,518 INFO L87 Difference]: Start difference. First operand 600 states and 805 transitions. Second operand 44 states. [2018-04-13 14:02:03,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:02:03,390 INFO L93 Difference]: Finished difference Result 656 states and 866 transitions. [2018-04-13 14:02:03,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-13 14:02:03,390 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 213 [2018-04-13 14:02:03,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:02:03,391 INFO L225 Difference]: With dead ends: 656 [2018-04-13 14:02:03,391 INFO L226 Difference]: Without dead ends: 656 [2018-04-13 14:02:03,392 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 14:02:03,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2018-04-13 14:02:03,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 614. [2018-04-13 14:02:03,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2018-04-13 14:02:03,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 824 transitions. [2018-04-13 14:02:03,396 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 824 transitions. Word has length 213 [2018-04-13 14:02:03,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:02:03,396 INFO L459 AbstractCegarLoop]: Abstraction has 614 states and 824 transitions. [2018-04-13 14:02:03,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-04-13 14:02:03,396 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 824 transitions. [2018-04-13 14:02:03,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-04-13 14:02:03,398 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:02:03,398 INFO L355 BasicCegarLoop]: trace histogram [43, 43, 42, 42, 42, 1, 1, 1, 1, 1, 1] [2018-04-13 14:02:03,398 INFO L408 AbstractCegarLoop]: === Iteration 43 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:02:03,398 INFO L82 PathProgramCache]: Analyzing trace with hash 658998493, 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 14:02:03,401 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:02:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:03,875 INFO L134 CoverageAnalysis]: Checked inductivity of 4431 backedges. 0 proven. 4431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:03,891 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:02:03,891 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-04-13 14:02:03,891 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:02:03,892 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 14:02:03,892 INFO L182 omatonBuilderFactory]: Interpolants [29504#(= main_~i~0 4), 29505#(= main_~i~0 5), 29506#(= main_~i~0 6), 29507#(= main_~i~0 7), 29508#(= main_~i~0 8), 29509#(= main_~i~0 9), 29510#(= main_~i~0 10), 29511#(= main_~i~0 11), 29512#(= main_~i~0 12), 29513#(= main_~i~0 13), 29514#(= main_~i~0 14), 29515#(= main_~i~0 15), 29516#(= main_~i~0 16), 29517#(= main_~i~0 17), 29518#(= main_~i~0 18), 29519#(= main_~i~0 19), 29520#(= main_~i~0 20), 29521#(= main_~i~0 21), 29522#(= main_~i~0 22), 29523#(= main_~i~0 23), 29524#(= main_~i~0 24), 29525#(= main_~i~0 25), 29526#(= main_~i~0 26), 29527#(= main_~i~0 27), 29528#(= main_~i~0 28), 29529#(= main_~i~0 29), 29530#(= main_~i~0 30), 29531#(= main_~i~0 31), 29532#(= main_~i~0 32), 29533#(= main_~i~0 33), 29534#(= main_~i~0 34), 29535#(= main_~i~0 35), 29536#(= main_~i~0 36), 29537#(= main_~i~0 37), 29538#(= main_~i~0 38), 29539#(= main_~i~0 39), 29540#(= main_~i~0 40), 29541#(= main_~i~0 41), 29542#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 29496#true, 29497#false, 29500#(= 0 main_~i~0), 29501#(= main_~i~0 1), 29502#(= 2 main_~i~0), 29503#(= main_~i~0 3)] [2018-04-13 14:02:03,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4431 backedges. 0 proven. 4431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:03,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-04-13 14:02:03,892 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-04-13 14:02:03,893 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1851, Unknown=0, NotChecked=0, Total=1980 [2018-04-13 14:02:03,893 INFO L87 Difference]: Start difference. First operand 614 states and 824 transitions. Second operand 45 states. [2018-04-13 14:02:09,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:02:09,708 INFO L93 Difference]: Finished difference Result 671 states and 886 transitions. [2018-04-13 14:02:09,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-13 14:02:09,709 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 218 [2018-04-13 14:02:09,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:02:09,710 INFO L225 Difference]: With dead ends: 671 [2018-04-13 14:02:09,710 INFO L226 Difference]: Without dead ends: 671 [2018-04-13 14:02:09,710 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 14:02:09,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2018-04-13 14:02:09,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 628. [2018-04-13 14:02:09,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2018-04-13 14:02:09,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 843 transitions. [2018-04-13 14:02:09,716 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 843 transitions. Word has length 218 [2018-04-13 14:02:09,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:02:09,716 INFO L459 AbstractCegarLoop]: Abstraction has 628 states and 843 transitions. [2018-04-13 14:02:09,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-04-13 14:02:09,716 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 843 transitions. [2018-04-13 14:02:09,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-04-13 14:02:09,717 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:02:09,717 INFO L355 BasicCegarLoop]: trace histogram [44, 44, 43, 43, 43, 1, 1, 1, 1, 1, 1] [2018-04-13 14:02:09,717 INFO L408 AbstractCegarLoop]: === Iteration 44 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:02:09,718 INFO L82 PathProgramCache]: Analyzing trace with hash 162249782, 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 14:02:09,720 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:02:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:10,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4644 backedges. 0 proven. 4644 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:10,214 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:02:10,215 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-04-13 14:02:10,215 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:02:10,215 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 14:02:10,215 INFO L182 omatonBuilderFactory]: Interpolants [30848#(= 2 main_~i~0), 30849#(= main_~i~0 3), 30850#(= main_~i~0 4), 30851#(= main_~i~0 5), 30852#(= main_~i~0 6), 30853#(= main_~i~0 7), 30854#(= main_~i~0 8), 30855#(= main_~i~0 9), 30856#(= main_~i~0 10), 30857#(= main_~i~0 11), 30858#(= main_~i~0 12), 30859#(= main_~i~0 13), 30860#(= main_~i~0 14), 30861#(= main_~i~0 15), 30862#(= main_~i~0 16), 30863#(= main_~i~0 17), 30864#(= main_~i~0 18), 30865#(= main_~i~0 19), 30866#(= main_~i~0 20), 30867#(= main_~i~0 21), 30868#(= main_~i~0 22), 30869#(= main_~i~0 23), 30870#(= main_~i~0 24), 30871#(= main_~i~0 25), 30872#(= main_~i~0 26), 30873#(= main_~i~0 27), 30874#(= main_~i~0 28), 30875#(= main_~i~0 29), 30876#(= main_~i~0 30), 30877#(= main_~i~0 31), 30878#(= main_~i~0 32), 30879#(= main_~i~0 33), 30880#(= main_~i~0 34), 30881#(= main_~i~0 35), 30882#(= main_~i~0 36), 30883#(= main_~i~0 37), 30884#(= main_~i~0 38), 30885#(= main_~i~0 39), 30886#(= main_~i~0 40), 30887#(= main_~i~0 41), 30888#(= main_~i~0 42), 30889#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 30842#true, 30843#false, 30846#(= 0 main_~i~0), 30847#(= main_~i~0 1)] [2018-04-13 14:02:10,215 INFO L134 CoverageAnalysis]: Checked inductivity of 4644 backedges. 0 proven. 4644 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:10,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-04-13 14:02:10,215 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-04-13 14:02:10,216 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1938, Unknown=0, NotChecked=0, Total=2070 [2018-04-13 14:02:10,216 INFO L87 Difference]: Start difference. First operand 628 states and 843 transitions. Second operand 46 states. [2018-04-13 14:02:16,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:02:16,299 INFO L93 Difference]: Finished difference Result 686 states and 906 transitions. [2018-04-13 14:02:16,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-04-13 14:02:16,300 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 223 [2018-04-13 14:02:16,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:02:16,301 INFO L225 Difference]: With dead ends: 686 [2018-04-13 14:02:16,301 INFO L226 Difference]: Without dead ends: 686 [2018-04-13 14:02:16,301 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 14:02:16,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-04-13 14:02:16,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 642. [2018-04-13 14:02:16,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2018-04-13 14:02:16,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 862 transitions. [2018-04-13 14:02:16,305 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 862 transitions. Word has length 223 [2018-04-13 14:02:16,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:02:16,305 INFO L459 AbstractCegarLoop]: Abstraction has 642 states and 862 transitions. [2018-04-13 14:02:16,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-04-13 14:02:16,305 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 862 transitions. [2018-04-13 14:02:16,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-04-13 14:02:16,306 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:02:16,306 INFO L355 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 1, 1, 1, 1, 1, 1] [2018-04-13 14:02:16,306 INFO L408 AbstractCegarLoop]: === Iteration 45 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:02:16,307 INFO L82 PathProgramCache]: Analyzing trace with hash 2016490621, 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 14:02:16,309 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:02:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4862 backedges. 0 proven. 4862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:16,931 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:02:16,931 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2018-04-13 14:02:16,931 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:02:16,931 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 14:02:16,932 INFO L182 omatonBuilderFactory]: Interpolants [32256#(= main_~i~0 34), 32257#(= main_~i~0 35), 32258#(= main_~i~0 36), 32259#(= main_~i~0 37), 32260#(= main_~i~0 38), 32261#(= main_~i~0 39), 32262#(= main_~i~0 40), 32263#(= main_~i~0 41), 32264#(= main_~i~0 42), 32265#(= main_~i~0 43), 32266#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 32218#true, 32219#false, 32222#(= 0 main_~i~0), 32223#(= main_~i~0 1), 32224#(= 2 main_~i~0), 32225#(= main_~i~0 3), 32226#(= main_~i~0 4), 32227#(= main_~i~0 5), 32228#(= main_~i~0 6), 32229#(= main_~i~0 7), 32230#(= main_~i~0 8), 32231#(= main_~i~0 9), 32232#(= main_~i~0 10), 32233#(= main_~i~0 11), 32234#(= main_~i~0 12), 32235#(= main_~i~0 13), 32236#(= main_~i~0 14), 32237#(= main_~i~0 15), 32238#(= main_~i~0 16), 32239#(= main_~i~0 17), 32240#(= main_~i~0 18), 32241#(= main_~i~0 19), 32242#(= main_~i~0 20), 32243#(= main_~i~0 21), 32244#(= main_~i~0 22), 32245#(= main_~i~0 23), 32246#(= main_~i~0 24), 32247#(= main_~i~0 25), 32248#(= main_~i~0 26), 32249#(= main_~i~0 27), 32250#(= main_~i~0 28), 32251#(= main_~i~0 29), 32252#(= main_~i~0 30), 32253#(= main_~i~0 31), 32254#(= main_~i~0 32), 32255#(= main_~i~0 33)] [2018-04-13 14:02:16,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4862 backedges. 0 proven. 4862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:16,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-04-13 14:02:16,932 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-04-13 14:02:16,932 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=2027, Unknown=0, NotChecked=0, Total=2162 [2018-04-13 14:02:16,932 INFO L87 Difference]: Start difference. First operand 642 states and 862 transitions. Second operand 47 states. [2018-04-13 14:02:23,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:02:23,301 INFO L93 Difference]: Finished difference Result 701 states and 926 transitions. [2018-04-13 14:02:23,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-13 14:02:23,302 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 228 [2018-04-13 14:02:23,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:02:23,303 INFO L225 Difference]: With dead ends: 701 [2018-04-13 14:02:23,303 INFO L226 Difference]: Without dead ends: 701 [2018-04-13 14:02:23,303 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=2027, Unknown=0, NotChecked=0, Total=2162 [2018-04-13 14:02:23,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2018-04-13 14:02:23,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 656. [2018-04-13 14:02:23,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2018-04-13 14:02:23,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 881 transitions. [2018-04-13 14:02:23,308 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 881 transitions. Word has length 228 [2018-04-13 14:02:23,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:02:23,308 INFO L459 AbstractCegarLoop]: Abstraction has 656 states and 881 transitions. [2018-04-13 14:02:23,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-04-13 14:02:23,308 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 881 transitions. [2018-04-13 14:02:23,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-04-13 14:02:23,309 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:02:23,309 INFO L355 BasicCegarLoop]: trace histogram [46, 46, 45, 45, 45, 1, 1, 1, 1, 1, 1] [2018-04-13 14:02:23,309 INFO L408 AbstractCegarLoop]: === Iteration 46 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:02:23,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1820405610, 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 14:02:23,313 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:02:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 5085 backedges. 0 proven. 5085 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:23,998 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:02:23,998 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-04-13 14:02:23,998 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:02:23,998 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 14:02:23,998 INFO L182 omatonBuilderFactory]: Interpolants [33664#(= main_~i~0 36), 33665#(= main_~i~0 37), 33666#(= main_~i~0 38), 33667#(= main_~i~0 39), 33668#(= main_~i~0 40), 33669#(= main_~i~0 41), 33670#(= main_~i~0 42), 33671#(= main_~i~0 43), 33672#(= main_~i~0 44), 33673#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 33624#true, 33625#false, 33628#(= 0 main_~i~0), 33629#(= main_~i~0 1), 33630#(= 2 main_~i~0), 33631#(= main_~i~0 3), 33632#(= main_~i~0 4), 33633#(= main_~i~0 5), 33634#(= main_~i~0 6), 33635#(= main_~i~0 7), 33636#(= main_~i~0 8), 33637#(= main_~i~0 9), 33638#(= main_~i~0 10), 33639#(= main_~i~0 11), 33640#(= main_~i~0 12), 33641#(= main_~i~0 13), 33642#(= main_~i~0 14), 33643#(= main_~i~0 15), 33644#(= main_~i~0 16), 33645#(= main_~i~0 17), 33646#(= main_~i~0 18), 33647#(= main_~i~0 19), 33648#(= main_~i~0 20), 33649#(= main_~i~0 21), 33650#(= main_~i~0 22), 33651#(= main_~i~0 23), 33652#(= main_~i~0 24), 33653#(= main_~i~0 25), 33654#(= main_~i~0 26), 33655#(= main_~i~0 27), 33656#(= main_~i~0 28), 33657#(= main_~i~0 29), 33658#(= main_~i~0 30), 33659#(= main_~i~0 31), 33660#(= main_~i~0 32), 33661#(= main_~i~0 33), 33662#(= main_~i~0 34), 33663#(= main_~i~0 35)] [2018-04-13 14:02:23,999 INFO L134 CoverageAnalysis]: Checked inductivity of 5085 backedges. 0 proven. 5085 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:23,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-04-13 14:02:23,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-04-13 14:02:23,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=2118, Unknown=0, NotChecked=0, Total=2256 [2018-04-13 14:02:23,999 INFO L87 Difference]: Start difference. First operand 656 states and 881 transitions. Second operand 48 states. [2018-04-13 14:02:30,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:02:30,631 INFO L93 Difference]: Finished difference Result 716 states and 946 transitions. [2018-04-13 14:02:30,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-13 14:02:30,631 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 233 [2018-04-13 14:02:30,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:02:30,633 INFO L225 Difference]: With dead ends: 716 [2018-04-13 14:02:30,633 INFO L226 Difference]: Without dead ends: 716 [2018-04-13 14:02:30,633 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 14:02:30,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2018-04-13 14:02:30,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 670. [2018-04-13 14:02:30,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2018-04-13 14:02:30,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 900 transitions. [2018-04-13 14:02:30,637 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 900 transitions. Word has length 233 [2018-04-13 14:02:30,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:02:30,638 INFO L459 AbstractCegarLoop]: Abstraction has 670 states and 900 transitions. [2018-04-13 14:02:30,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-04-13 14:02:30,638 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 900 transitions. [2018-04-13 14:02:30,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-04-13 14:02:30,640 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:02:30,640 INFO L355 BasicCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1, 1] [2018-04-13 14:02:30,640 INFO L408 AbstractCegarLoop]: === Iteration 47 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:02:30,640 INFO L82 PathProgramCache]: Analyzing trace with hash -553919459, 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 14:02:30,645 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:02:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:31,167 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:31,184 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:02:31,184 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2018-04-13 14:02:31,184 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:02:31,184 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 14:02:31,184 INFO L182 omatonBuilderFactory]: Interpolants [35072#(= main_~i~0 8), 35073#(= main_~i~0 9), 35074#(= main_~i~0 10), 35075#(= main_~i~0 11), 35076#(= main_~i~0 12), 35077#(= main_~i~0 13), 35078#(= main_~i~0 14), 35079#(= main_~i~0 15), 35080#(= main_~i~0 16), 35081#(= main_~i~0 17), 35082#(= main_~i~0 18), 35083#(= main_~i~0 19), 35084#(= main_~i~0 20), 35085#(= main_~i~0 21), 35086#(= main_~i~0 22), 35087#(= main_~i~0 23), 35088#(= main_~i~0 24), 35089#(= main_~i~0 25), 35090#(= main_~i~0 26), 35091#(= main_~i~0 27), 35092#(= main_~i~0 28), 35093#(= main_~i~0 29), 35094#(= main_~i~0 30), 35095#(= main_~i~0 31), 35096#(= main_~i~0 32), 35097#(= main_~i~0 33), 35098#(= main_~i~0 34), 35099#(= main_~i~0 35), 35100#(= main_~i~0 36), 35101#(= main_~i~0 37), 35102#(= main_~i~0 38), 35103#(= main_~i~0 39), 35104#(= main_~i~0 40), 35105#(= main_~i~0 41), 35106#(= main_~i~0 42), 35107#(= main_~i~0 43), 35108#(= main_~i~0 44), 35109#(= main_~i~0 45), 35110#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 35060#true, 35061#false, 35064#(= 0 main_~i~0), 35065#(= main_~i~0 1), 35066#(= 2 main_~i~0), 35067#(= main_~i~0 3), 35068#(= main_~i~0 4), 35069#(= main_~i~0 5), 35070#(= main_~i~0 6), 35071#(= main_~i~0 7)] [2018-04-13 14:02:31,184 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:31,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-04-13 14:02:31,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-04-13 14:02:31,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=2211, Unknown=0, NotChecked=0, Total=2352 [2018-04-13 14:02:31,185 INFO L87 Difference]: Start difference. First operand 670 states and 900 transitions. Second operand 49 states. [2018-04-13 14:02:38,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:02:38,025 INFO L93 Difference]: Finished difference Result 731 states and 966 transitions. [2018-04-13 14:02:38,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-04-13 14:02:38,025 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 238 [2018-04-13 14:02:38,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:02:38,027 INFO L225 Difference]: With dead ends: 731 [2018-04-13 14:02:38,027 INFO L226 Difference]: Without dead ends: 731 [2018-04-13 14:02:38,027 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=2211, Unknown=0, NotChecked=0, Total=2352 [2018-04-13 14:02:38,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2018-04-13 14:02:38,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 684. [2018-04-13 14:02:38,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2018-04-13 14:02:38,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 919 transitions. [2018-04-13 14:02:38,032 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 919 transitions. Word has length 238 [2018-04-13 14:02:38,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:02:38,032 INFO L459 AbstractCegarLoop]: Abstraction has 684 states and 919 transitions. [2018-04-13 14:02:38,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-04-13 14:02:38,032 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 919 transitions. [2018-04-13 14:02:38,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-04-13 14:02:38,033 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:02:38,033 INFO L355 BasicCegarLoop]: trace histogram [48, 48, 47, 47, 47, 1, 1, 1, 1, 1, 1] [2018-04-13 14:02:38,033 INFO L408 AbstractCegarLoop]: === Iteration 48 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:02:38,033 INFO L82 PathProgramCache]: Analyzing trace with hash -448008970, 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 14:02:38,035 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:02:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:38,603 INFO L134 CoverageAnalysis]: Checked inductivity of 5546 backedges. 0 proven. 5546 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:38,621 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:02:38,621 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-04-13 14:02:38,621 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:02:38,621 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 14:02:38,622 INFO L182 omatonBuilderFactory]: Interpolants [36526#true, 36527#false, 36530#(= 0 main_~i~0), 36531#(= main_~i~0 1), 36532#(= 2 main_~i~0), 36533#(= main_~i~0 3), 36534#(= main_~i~0 4), 36535#(= main_~i~0 5), 36536#(= main_~i~0 6), 36537#(= main_~i~0 7), 36538#(= main_~i~0 8), 36539#(= main_~i~0 9), 36540#(= main_~i~0 10), 36541#(= main_~i~0 11), 36542#(= main_~i~0 12), 36543#(= main_~i~0 13), 36544#(= main_~i~0 14), 36545#(= main_~i~0 15), 36546#(= main_~i~0 16), 36547#(= main_~i~0 17), 36548#(= main_~i~0 18), 36549#(= main_~i~0 19), 36550#(= main_~i~0 20), 36551#(= main_~i~0 21), 36552#(= main_~i~0 22), 36553#(= main_~i~0 23), 36554#(= main_~i~0 24), 36555#(= main_~i~0 25), 36556#(= main_~i~0 26), 36557#(= main_~i~0 27), 36558#(= main_~i~0 28), 36559#(= main_~i~0 29), 36560#(= main_~i~0 30), 36561#(= main_~i~0 31), 36562#(= main_~i~0 32), 36563#(= main_~i~0 33), 36564#(= main_~i~0 34), 36565#(= main_~i~0 35), 36566#(= main_~i~0 36), 36567#(= main_~i~0 37), 36568#(= main_~i~0 38), 36569#(= main_~i~0 39), 36570#(= main_~i~0 40), 36571#(= main_~i~0 41), 36572#(= main_~i~0 42), 36573#(= main_~i~0 43), 36574#(= main_~i~0 44), 36575#(= main_~i~0 45), 36576#(= main_~i~0 46), 36577#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:02:38,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5546 backedges. 0 proven. 5546 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:38,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-04-13 14:02:38,622 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-04-13 14:02:38,622 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=2306, Unknown=0, NotChecked=0, Total=2450 [2018-04-13 14:02:38,622 INFO L87 Difference]: Start difference. First operand 684 states and 919 transitions. Second operand 50 states. [2018-04-13 14:02:45,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:02:45,834 INFO L93 Difference]: Finished difference Result 746 states and 986 transitions. [2018-04-13 14:02:45,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-04-13 14:02:45,834 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 243 [2018-04-13 14:02:45,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:02:45,836 INFO L225 Difference]: With dead ends: 746 [2018-04-13 14:02:45,836 INFO L226 Difference]: Without dead ends: 746 [2018-04-13 14:02:45,836 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 14:02:45,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-04-13 14:02:45,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 698. [2018-04-13 14:02:45,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698 states. [2018-04-13 14:02:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 938 transitions. [2018-04-13 14:02:45,840 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 938 transitions. Word has length 243 [2018-04-13 14:02:45,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:02:45,840 INFO L459 AbstractCegarLoop]: Abstraction has 698 states and 938 transitions. [2018-04-13 14:02:45,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-04-13 14:02:45,840 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 938 transitions. [2018-04-13 14:02:45,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-04-13 14:02:45,841 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:02:45,841 INFO L355 BasicCegarLoop]: trace histogram [49, 49, 48, 48, 48, 1, 1, 1, 1, 1, 1] [2018-04-13 14:02:45,842 INFO L408 AbstractCegarLoop]: === Iteration 49 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:02:45,842 INFO L82 PathProgramCache]: Analyzing trace with hash 282164157, 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 14:02:45,847 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:02:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:46,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5784 backedges. 0 proven. 5784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:46,429 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:02:46,429 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2018-04-13 14:02:46,429 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:02:46,429 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 14:02:46,430 INFO L182 omatonBuilderFactory]: Interpolants [38022#true, 38023#false, 38026#(= 0 main_~i~0), 38027#(= main_~i~0 1), 38028#(= 2 main_~i~0), 38029#(= main_~i~0 3), 38030#(= main_~i~0 4), 38031#(= main_~i~0 5), 38032#(= main_~i~0 6), 38033#(= main_~i~0 7), 38034#(= main_~i~0 8), 38035#(= main_~i~0 9), 38036#(= main_~i~0 10), 38037#(= main_~i~0 11), 38038#(= main_~i~0 12), 38039#(= main_~i~0 13), 38040#(= main_~i~0 14), 38041#(= main_~i~0 15), 38042#(= main_~i~0 16), 38043#(= main_~i~0 17), 38044#(= main_~i~0 18), 38045#(= main_~i~0 19), 38046#(= main_~i~0 20), 38047#(= main_~i~0 21), 38048#(= main_~i~0 22), 38049#(= main_~i~0 23), 38050#(= main_~i~0 24), 38051#(= main_~i~0 25), 38052#(= main_~i~0 26), 38053#(= main_~i~0 27), 38054#(= main_~i~0 28), 38055#(= main_~i~0 29), 38056#(= main_~i~0 30), 38057#(= main_~i~0 31), 38058#(= main_~i~0 32), 38059#(= main_~i~0 33), 38060#(= main_~i~0 34), 38061#(= main_~i~0 35), 38062#(= main_~i~0 36), 38063#(= main_~i~0 37), 38064#(= main_~i~0 38), 38065#(= main_~i~0 39), 38066#(= main_~i~0 40), 38067#(= main_~i~0 41), 38068#(= main_~i~0 42), 38069#(= main_~i~0 43), 38070#(= main_~i~0 44), 38071#(= main_~i~0 45), 38072#(= main_~i~0 46), 38073#(= main_~i~0 47), 38074#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:02:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5784 backedges. 0 proven. 5784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:46,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-04-13 14:02:46,430 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-04-13 14:02:46,430 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=2403, Unknown=0, NotChecked=0, Total=2550 [2018-04-13 14:02:46,430 INFO L87 Difference]: Start difference. First operand 698 states and 938 transitions. Second operand 51 states. [2018-04-13 14:02:53,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:02:53,915 INFO L93 Difference]: Finished difference Result 761 states and 1006 transitions. [2018-04-13 14:02:53,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-13 14:02:53,942 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 248 [2018-04-13 14:02:53,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:02:53,944 INFO L225 Difference]: With dead ends: 761 [2018-04-13 14:02:53,944 INFO L226 Difference]: Without dead ends: 761 [2018-04-13 14:02:53,944 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=2403, Unknown=0, NotChecked=0, Total=2550 [2018-04-13 14:02:53,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2018-04-13 14:02:53,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 712. [2018-04-13 14:02:53,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2018-04-13 14:02:53,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 957 transitions. [2018-04-13 14:02:53,949 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 957 transitions. Word has length 248 [2018-04-13 14:02:53,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:02:53,949 INFO L459 AbstractCegarLoop]: Abstraction has 712 states and 957 transitions. [2018-04-13 14:02:53,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-04-13 14:02:53,949 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 957 transitions. [2018-04-13 14:02:53,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-04-13 14:02:53,950 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:02:53,950 INFO L355 BasicCegarLoop]: trace histogram [50, 50, 49, 49, 49, 1, 1, 1, 1, 1, 1] [2018-04-13 14:02:53,950 INFO L408 AbstractCegarLoop]: === Iteration 50 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:02:53,950 INFO L82 PathProgramCache]: Analyzing trace with hash -198635178, 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 14:02:53,952 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:02:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:02:54,555 INFO L134 CoverageAnalysis]: Checked inductivity of 6027 backedges. 0 proven. 6027 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:54,573 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:02:54,573 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2018-04-13 14:02:54,573 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:02:54,573 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 14:02:54,574 INFO L182 omatonBuilderFactory]: Interpolants [39552#(= 0 main_~i~0), 39553#(= main_~i~0 1), 39554#(= 2 main_~i~0), 39555#(= main_~i~0 3), 39556#(= main_~i~0 4), 39557#(= main_~i~0 5), 39558#(= main_~i~0 6), 39559#(= main_~i~0 7), 39560#(= main_~i~0 8), 39561#(= main_~i~0 9), 39562#(= main_~i~0 10), 39563#(= main_~i~0 11), 39564#(= main_~i~0 12), 39565#(= main_~i~0 13), 39566#(= main_~i~0 14), 39567#(= main_~i~0 15), 39568#(= main_~i~0 16), 39569#(= main_~i~0 17), 39570#(= main_~i~0 18), 39571#(= main_~i~0 19), 39572#(= main_~i~0 20), 39573#(= main_~i~0 21), 39574#(= main_~i~0 22), 39575#(= main_~i~0 23), 39576#(= main_~i~0 24), 39577#(= main_~i~0 25), 39578#(= main_~i~0 26), 39579#(= main_~i~0 27), 39580#(= main_~i~0 28), 39581#(= main_~i~0 29), 39582#(= main_~i~0 30), 39583#(= main_~i~0 31), 39584#(= main_~i~0 32), 39585#(= main_~i~0 33), 39586#(= main_~i~0 34), 39587#(= main_~i~0 35), 39588#(= main_~i~0 36), 39589#(= main_~i~0 37), 39590#(= main_~i~0 38), 39591#(= main_~i~0 39), 39592#(= main_~i~0 40), 39593#(= main_~i~0 41), 39594#(= main_~i~0 42), 39595#(= main_~i~0 43), 39596#(= main_~i~0 44), 39597#(= main_~i~0 45), 39598#(= main_~i~0 46), 39599#(= main_~i~0 47), 39600#(= main_~i~0 48), 39601#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 39548#true, 39549#false] [2018-04-13 14:02:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 6027 backedges. 0 proven. 6027 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:02:54,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-13 14:02:54,574 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-13 14:02:54,574 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=2502, Unknown=0, NotChecked=0, Total=2652 [2018-04-13 14:02:54,574 INFO L87 Difference]: Start difference. First operand 712 states and 957 transitions. Second operand 52 states. [2018-04-13 14:03:02,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:03:02,756 INFO L93 Difference]: Finished difference Result 776 states and 1026 transitions. [2018-04-13 14:03:02,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-04-13 14:03:02,757 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 253 [2018-04-13 14:03:02,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:03:02,758 INFO L225 Difference]: With dead ends: 776 [2018-04-13 14:03:02,758 INFO L226 Difference]: Without dead ends: 776 [2018-04-13 14:03:02,758 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 14:03:02,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2018-04-13 14:03:02,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 726. [2018-04-13 14:03:02,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2018-04-13 14:03:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 976 transitions. [2018-04-13 14:03:02,763 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 976 transitions. Word has length 253 [2018-04-13 14:03:02,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:03:02,763 INFO L459 AbstractCegarLoop]: Abstraction has 726 states and 976 transitions. [2018-04-13 14:03:02,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-13 14:03:02,763 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 976 transitions. [2018-04-13 14:03:02,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-04-13 14:03:02,764 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:03:02,764 INFO L355 BasicCegarLoop]: trace histogram [51, 51, 50, 50, 50, 1, 1, 1, 1, 1, 1] [2018-04-13 14:03:02,765 INFO L408 AbstractCegarLoop]: === Iteration 51 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:03:02,765 INFO L82 PathProgramCache]: Analyzing trace with hash -698608803, 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 14:03:02,768 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:03:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:03,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6275 backedges. 0 proven. 6275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:03:03,417 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:03:03,417 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2018-04-13 14:03:03,417 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:03:03,418 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 14:03:03,418 INFO L182 omatonBuilderFactory]: Interpolants [41104#true, 41105#false, 41108#(= 0 main_~i~0), 41109#(= main_~i~0 1), 41110#(= 2 main_~i~0), 41111#(= main_~i~0 3), 41112#(= main_~i~0 4), 41113#(= main_~i~0 5), 41114#(= main_~i~0 6), 41115#(= main_~i~0 7), 41116#(= main_~i~0 8), 41117#(= main_~i~0 9), 41118#(= main_~i~0 10), 41119#(= main_~i~0 11), 41120#(= main_~i~0 12), 41121#(= main_~i~0 13), 41122#(= main_~i~0 14), 41123#(= main_~i~0 15), 41124#(= main_~i~0 16), 41125#(= main_~i~0 17), 41126#(= main_~i~0 18), 41127#(= main_~i~0 19), 41128#(= main_~i~0 20), 41129#(= main_~i~0 21), 41130#(= main_~i~0 22), 41131#(= main_~i~0 23), 41132#(= main_~i~0 24), 41133#(= main_~i~0 25), 41134#(= main_~i~0 26), 41135#(= main_~i~0 27), 41136#(= main_~i~0 28), 41137#(= main_~i~0 29), 41138#(= main_~i~0 30), 41139#(= main_~i~0 31), 41140#(= main_~i~0 32), 41141#(= main_~i~0 33), 41142#(= main_~i~0 34), 41143#(= main_~i~0 35), 41144#(= main_~i~0 36), 41145#(= main_~i~0 37), 41146#(= main_~i~0 38), 41147#(= main_~i~0 39), 41148#(= main_~i~0 40), 41149#(= main_~i~0 41), 41150#(= main_~i~0 42), 41151#(= main_~i~0 43), 41152#(= main_~i~0 44), 41153#(= main_~i~0 45), 41154#(= main_~i~0 46), 41155#(= main_~i~0 47), 41156#(= main_~i~0 48), 41157#(= main_~i~0 49), 41158#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:03:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6275 backedges. 0 proven. 6275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:03:03,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-04-13 14:03:03,418 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-04-13 14:03:03,418 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=2603, Unknown=0, NotChecked=0, Total=2756 [2018-04-13 14:03:03,418 INFO L87 Difference]: Start difference. First operand 726 states and 976 transitions. Second operand 53 states. [2018-04-13 14:03:11,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:03:11,629 INFO L93 Difference]: Finished difference Result 791 states and 1046 transitions. [2018-04-13 14:03:11,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-04-13 14:03:11,629 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 258 [2018-04-13 14:03:11,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:03:11,631 INFO L225 Difference]: With dead ends: 791 [2018-04-13 14:03:11,631 INFO L226 Difference]: Without dead ends: 791 [2018-04-13 14:03:11,631 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 14:03:11,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2018-04-13 14:03:11,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 740. [2018-04-13 14:03:11,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2018-04-13 14:03:11,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 995 transitions. [2018-04-13 14:03:11,636 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 995 transitions. Word has length 258 [2018-04-13 14:03:11,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:03:11,636 INFO L459 AbstractCegarLoop]: Abstraction has 740 states and 995 transitions. [2018-04-13 14:03:11,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-04-13 14:03:11,636 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 995 transitions. [2018-04-13 14:03:11,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-04-13 14:03:11,637 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:03:11,637 INFO L355 BasicCegarLoop]: trace histogram [52, 52, 51, 51, 51, 1, 1, 1, 1, 1, 1] [2018-04-13 14:03:11,638 INFO L408 AbstractCegarLoop]: === Iteration 52 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:03:11,638 INFO L82 PathProgramCache]: Analyzing trace with hash -777241162, 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 14:03:11,640 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:03:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:12,305 INFO L134 CoverageAnalysis]: Checked inductivity of 6528 backedges. 0 proven. 6528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:03:12,321 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:03:12,321 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2018-04-13 14:03:12,321 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:03:12,322 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 14:03:12,322 INFO L182 omatonBuilderFactory]: Interpolants [42690#true, 42691#false, 42694#(= 0 main_~i~0), 42695#(= main_~i~0 1), 42696#(= 2 main_~i~0), 42697#(= main_~i~0 3), 42698#(= main_~i~0 4), 42699#(= main_~i~0 5), 42700#(= main_~i~0 6), 42701#(= main_~i~0 7), 42702#(= main_~i~0 8), 42703#(= main_~i~0 9), 42704#(= main_~i~0 10), 42705#(= main_~i~0 11), 42706#(= main_~i~0 12), 42707#(= main_~i~0 13), 42708#(= main_~i~0 14), 42709#(= main_~i~0 15), 42710#(= main_~i~0 16), 42711#(= main_~i~0 17), 42712#(= main_~i~0 18), 42713#(= main_~i~0 19), 42714#(= main_~i~0 20), 42715#(= main_~i~0 21), 42716#(= main_~i~0 22), 42717#(= main_~i~0 23), 42718#(= main_~i~0 24), 42719#(= main_~i~0 25), 42720#(= main_~i~0 26), 42721#(= main_~i~0 27), 42722#(= main_~i~0 28), 42723#(= main_~i~0 29), 42724#(= main_~i~0 30), 42725#(= main_~i~0 31), 42726#(= main_~i~0 32), 42727#(= main_~i~0 33), 42728#(= main_~i~0 34), 42729#(= main_~i~0 35), 42730#(= main_~i~0 36), 42731#(= main_~i~0 37), 42732#(= main_~i~0 38), 42733#(= main_~i~0 39), 42734#(= main_~i~0 40), 42735#(= main_~i~0 41), 42736#(= main_~i~0 42), 42737#(= main_~i~0 43), 42738#(= main_~i~0 44), 42739#(= main_~i~0 45), 42740#(= main_~i~0 46), 42741#(= main_~i~0 47), 42742#(= main_~i~0 48), 42743#(= main_~i~0 49), 42744#(= main_~i~0 50), 42745#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:03:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 6528 backedges. 0 proven. 6528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:03:12,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-04-13 14:03:12,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-04-13 14:03:12,322 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=2706, Unknown=0, NotChecked=0, Total=2862 [2018-04-13 14:03:12,322 INFO L87 Difference]: Start difference. First operand 740 states and 995 transitions. Second operand 54 states. [2018-04-13 14:03:20,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:03:20,858 INFO L93 Difference]: Finished difference Result 806 states and 1066 transitions. [2018-04-13 14:03:20,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-13 14:03:20,859 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 263 [2018-04-13 14:03:20,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:03:20,860 INFO L225 Difference]: With dead ends: 806 [2018-04-13 14:03:20,860 INFO L226 Difference]: Without dead ends: 806 [2018-04-13 14:03:20,860 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 14:03:20,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-04-13 14:03:20,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 754. [2018-04-13 14:03:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2018-04-13 14:03:20,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1014 transitions. [2018-04-13 14:03:20,867 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1014 transitions. Word has length 263 [2018-04-13 14:03:20,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:03:20,867 INFO L459 AbstractCegarLoop]: Abstraction has 754 states and 1014 transitions. [2018-04-13 14:03:20,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-04-13 14:03:20,867 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1014 transitions. [2018-04-13 14:03:20,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-04-13 14:03:20,868 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:03:20,869 INFO L355 BasicCegarLoop]: trace histogram [53, 53, 52, 52, 52, 1, 1, 1, 1, 1, 1] [2018-04-13 14:03:20,869 INFO L408 AbstractCegarLoop]: === Iteration 53 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:03:20,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1413111043, 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) [2018-04-13 14:03:20,871 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-13 14:03:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:21,546 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 14:03:21,562 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:03:21,562 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-04-13 14:03:21,562 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:03:21,562 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 14:03:21,562 INFO L182 omatonBuilderFactory]: Interpolants [44306#true, 44307#false, 44310#(= 0 main_~i~0), 44311#(= main_~i~0 1), 44312#(= 2 main_~i~0), 44313#(= main_~i~0 3), 44314#(= main_~i~0 4), 44315#(= main_~i~0 5), 44316#(= main_~i~0 6), 44317#(= main_~i~0 7), 44318#(= main_~i~0 8), 44319#(= main_~i~0 9), 44320#(= main_~i~0 10), 44321#(= main_~i~0 11), 44322#(= main_~i~0 12), 44323#(= main_~i~0 13), 44324#(= main_~i~0 14), 44325#(= main_~i~0 15), 44326#(= main_~i~0 16), 44327#(= main_~i~0 17), 44328#(= main_~i~0 18), 44329#(= main_~i~0 19), 44330#(= main_~i~0 20), 44331#(= main_~i~0 21), 44332#(= main_~i~0 22), 44333#(= main_~i~0 23), 44334#(= main_~i~0 24), 44335#(= main_~i~0 25), 44336#(= main_~i~0 26), 44337#(= main_~i~0 27), 44338#(= main_~i~0 28), 44339#(= main_~i~0 29), 44340#(= main_~i~0 30), 44341#(= main_~i~0 31), 44342#(= main_~i~0 32), 44343#(= main_~i~0 33), 44344#(= main_~i~0 34), 44345#(= main_~i~0 35), 44346#(= main_~i~0 36), 44347#(= main_~i~0 37), 44348#(= main_~i~0 38), 44349#(= main_~i~0 39), 44350#(= main_~i~0 40), 44351#(= main_~i~0 41), 44352#(= main_~i~0 42), 44353#(= main_~i~0 43), 44354#(= main_~i~0 44), 44355#(= main_~i~0 45), 44356#(= main_~i~0 46), 44357#(= main_~i~0 47), 44358#(= main_~i~0 48), 44359#(= main_~i~0 49), 44360#(= main_~i~0 50), 44361#(= main_~i~0 51), 44362#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:03:21,563 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 14:03:21,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-04-13 14:03:21,563 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-04-13 14:03:21,563 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=2811, Unknown=0, NotChecked=0, Total=2970 [2018-04-13 14:03:21,563 INFO L87 Difference]: Start difference. First operand 754 states and 1014 transitions. Second operand 55 states. [2018-04-13 14:03:30,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:03:30,407 INFO L93 Difference]: Finished difference Result 821 states and 1086 transitions. [2018-04-13 14:03:30,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-04-13 14:03:30,407 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 268 [2018-04-13 14:03:30,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:03:30,409 INFO L225 Difference]: With dead ends: 821 [2018-04-13 14:03:30,409 INFO L226 Difference]: Without dead ends: 821 [2018-04-13 14:03:30,409 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 14:03:30,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2018-04-13 14:03:30,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 768. [2018-04-13 14:03:30,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2018-04-13 14:03:30,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1033 transitions. [2018-04-13 14:03:30,414 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1033 transitions. Word has length 268 [2018-04-13 14:03:30,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:03:30,414 INFO L459 AbstractCegarLoop]: Abstraction has 768 states and 1033 transitions. [2018-04-13 14:03:30,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-04-13 14:03:30,415 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1033 transitions. [2018-04-13 14:03:30,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-04-13 14:03:30,416 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:03:30,416 INFO L355 BasicCegarLoop]: trace histogram [54, 54, 53, 53, 53, 1, 1, 1, 1, 1, 1] [2018-04-13 14:03:30,416 INFO L408 AbstractCegarLoop]: === Iteration 54 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:03:30,416 INFO L82 PathProgramCache]: Analyzing trace with hash 199979542, 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 14:03:30,418 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:03:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:31,133 INFO L134 CoverageAnalysis]: Checked inductivity of 7049 backedges. 0 proven. 7049 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:03:31,150 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:03:31,150 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-04-13 14:03:31,150 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:03:31,150 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 14:03:31,151 INFO L182 omatonBuilderFactory]: Interpolants [45952#true, 45953#false, 45956#(= 0 main_~i~0), 45957#(= main_~i~0 1), 45958#(= 2 main_~i~0), 45959#(= main_~i~0 3), 45960#(= main_~i~0 4), 45961#(= main_~i~0 5), 45962#(= main_~i~0 6), 45963#(= main_~i~0 7), 45964#(= main_~i~0 8), 45965#(= main_~i~0 9), 45966#(= main_~i~0 10), 45967#(= main_~i~0 11), 45968#(= main_~i~0 12), 45969#(= main_~i~0 13), 45970#(= main_~i~0 14), 45971#(= main_~i~0 15), 45972#(= main_~i~0 16), 45973#(= main_~i~0 17), 45974#(= main_~i~0 18), 45975#(= main_~i~0 19), 45976#(= main_~i~0 20), 45977#(= main_~i~0 21), 45978#(= main_~i~0 22), 45979#(= main_~i~0 23), 45980#(= main_~i~0 24), 45981#(= main_~i~0 25), 45982#(= main_~i~0 26), 45983#(= main_~i~0 27), 45984#(= main_~i~0 28), 45985#(= main_~i~0 29), 45986#(= main_~i~0 30), 45987#(= main_~i~0 31), 45988#(= main_~i~0 32), 45989#(= main_~i~0 33), 45990#(= main_~i~0 34), 45991#(= main_~i~0 35), 45992#(= main_~i~0 36), 45993#(= main_~i~0 37), 45994#(= main_~i~0 38), 45995#(= main_~i~0 39), 45996#(= main_~i~0 40), 45997#(= main_~i~0 41), 45998#(= main_~i~0 42), 45999#(= main_~i~0 43), 46000#(= main_~i~0 44), 46001#(= main_~i~0 45), 46002#(= main_~i~0 46), 46003#(= main_~i~0 47), 46004#(= main_~i~0 48), 46005#(= main_~i~0 49), 46006#(= main_~i~0 50), 46007#(= main_~i~0 51), 46008#(= main_~i~0 52), 46009#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:03:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 7049 backedges. 0 proven. 7049 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:03:31,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-04-13 14:03:31,151 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-04-13 14:03:31,151 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=2918, Unknown=0, NotChecked=0, Total=3080 [2018-04-13 14:03:31,151 INFO L87 Difference]: Start difference. First operand 768 states and 1033 transitions. Second operand 56 states. [2018-04-13 14:03:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:03:40,413 INFO L93 Difference]: Finished difference Result 836 states and 1106 transitions. [2018-04-13 14:03:40,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-04-13 14:03:40,413 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 273 [2018-04-13 14:03:40,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:03:40,415 INFO L225 Difference]: With dead ends: 836 [2018-04-13 14:03:40,415 INFO L226 Difference]: Without dead ends: 836 [2018-04-13 14:03:40,415 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 14:03:40,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2018-04-13 14:03:40,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 782. [2018-04-13 14:03:40,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2018-04-13 14:03:40,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1052 transitions. [2018-04-13 14:03:40,420 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1052 transitions. Word has length 273 [2018-04-13 14:03:40,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:03:40,420 INFO L459 AbstractCegarLoop]: Abstraction has 782 states and 1052 transitions. [2018-04-13 14:03:40,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-04-13 14:03:40,420 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1052 transitions. [2018-04-13 14:03:40,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-04-13 14:03:40,421 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:03:40,421 INFO L355 BasicCegarLoop]: trace histogram [55, 55, 54, 54, 54, 1, 1, 1, 1, 1, 1] [2018-04-13 14:03:40,421 INFO L408 AbstractCegarLoop]: === Iteration 55 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:03:40,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1622682269, 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 14:03:40,424 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:03:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 7317 backedges. 0 proven. 7317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:03:41,154 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:03:41,155 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2018-04-13 14:03:41,155 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:03:41,155 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 14:03:41,155 INFO L182 omatonBuilderFactory]: Interpolants [47628#true, 47629#false, 47632#(= 0 main_~i~0), 47633#(= main_~i~0 1), 47634#(= 2 main_~i~0), 47635#(= main_~i~0 3), 47636#(= main_~i~0 4), 47637#(= main_~i~0 5), 47638#(= main_~i~0 6), 47639#(= main_~i~0 7), 47640#(= main_~i~0 8), 47641#(= main_~i~0 9), 47642#(= main_~i~0 10), 47643#(= main_~i~0 11), 47644#(= main_~i~0 12), 47645#(= main_~i~0 13), 47646#(= main_~i~0 14), 47647#(= main_~i~0 15), 47648#(= main_~i~0 16), 47649#(= main_~i~0 17), 47650#(= main_~i~0 18), 47651#(= main_~i~0 19), 47652#(= main_~i~0 20), 47653#(= main_~i~0 21), 47654#(= main_~i~0 22), 47655#(= main_~i~0 23), 47656#(= main_~i~0 24), 47657#(= main_~i~0 25), 47658#(= main_~i~0 26), 47659#(= main_~i~0 27), 47660#(= main_~i~0 28), 47661#(= main_~i~0 29), 47662#(= main_~i~0 30), 47663#(= main_~i~0 31), 47664#(= main_~i~0 32), 47665#(= main_~i~0 33), 47666#(= main_~i~0 34), 47667#(= main_~i~0 35), 47668#(= main_~i~0 36), 47669#(= main_~i~0 37), 47670#(= main_~i~0 38), 47671#(= main_~i~0 39), 47672#(= main_~i~0 40), 47673#(= main_~i~0 41), 47674#(= main_~i~0 42), 47675#(= main_~i~0 43), 47676#(= main_~i~0 44), 47677#(= main_~i~0 45), 47678#(= main_~i~0 46), 47679#(= main_~i~0 47), 47680#(= main_~i~0 48), 47681#(= main_~i~0 49), 47682#(= main_~i~0 50), 47683#(= main_~i~0 51), 47684#(= main_~i~0 52), 47685#(= main_~i~0 53), 47686#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:03:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 7317 backedges. 0 proven. 7317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:03:41,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-04-13 14:03:41,156 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-04-13 14:03:41,156 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=3027, Unknown=0, NotChecked=0, Total=3192 [2018-04-13 14:03:41,156 INFO L87 Difference]: Start difference. First operand 782 states and 1052 transitions. Second operand 57 states. [2018-04-13 14:03:50,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:03:50,631 INFO L93 Difference]: Finished difference Result 851 states and 1126 transitions. [2018-04-13 14:03:50,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-04-13 14:03:50,632 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 278 [2018-04-13 14:03:50,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:03:50,633 INFO L225 Difference]: With dead ends: 851 [2018-04-13 14:03:50,633 INFO L226 Difference]: Without dead ends: 851 [2018-04-13 14:03:50,633 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 14:03:50,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2018-04-13 14:03:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 796. [2018-04-13 14:03:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2018-04-13 14:03:50,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1071 transitions. [2018-04-13 14:03:50,638 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1071 transitions. Word has length 278 [2018-04-13 14:03:50,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:03:50,638 INFO L459 AbstractCegarLoop]: Abstraction has 796 states and 1071 transitions. [2018-04-13 14:03:50,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-04-13 14:03:50,639 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1071 transitions. [2018-04-13 14:03:50,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-04-13 14:03:50,640 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:03:50,640 INFO L355 BasicCegarLoop]: trace histogram [56, 56, 55, 55, 55, 1, 1, 1, 1, 1, 1] [2018-04-13 14:03:50,640 INFO L408 AbstractCegarLoop]: === Iteration 56 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:03:50,640 INFO L82 PathProgramCache]: Analyzing trace with hash 226274934, 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 14:03:50,645 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:03:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:03:51,402 INFO L134 CoverageAnalysis]: Checked inductivity of 7590 backedges. 0 proven. 7590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:03:51,418 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:03:51,418 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-04-13 14:03:51,418 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:03:51,419 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 14:03:51,419 INFO L182 omatonBuilderFactory]: Interpolants [49334#true, 49335#false, 49338#(= 0 main_~i~0), 49339#(= main_~i~0 1), 49340#(= 2 main_~i~0), 49341#(= main_~i~0 3), 49342#(= main_~i~0 4), 49343#(= main_~i~0 5), 49344#(= main_~i~0 6), 49345#(= main_~i~0 7), 49346#(= main_~i~0 8), 49347#(= main_~i~0 9), 49348#(= main_~i~0 10), 49349#(= main_~i~0 11), 49350#(= main_~i~0 12), 49351#(= main_~i~0 13), 49352#(= main_~i~0 14), 49353#(= main_~i~0 15), 49354#(= main_~i~0 16), 49355#(= main_~i~0 17), 49356#(= main_~i~0 18), 49357#(= main_~i~0 19), 49358#(= main_~i~0 20), 49359#(= main_~i~0 21), 49360#(= main_~i~0 22), 49361#(= main_~i~0 23), 49362#(= main_~i~0 24), 49363#(= main_~i~0 25), 49364#(= main_~i~0 26), 49365#(= main_~i~0 27), 49366#(= main_~i~0 28), 49367#(= main_~i~0 29), 49368#(= main_~i~0 30), 49369#(= main_~i~0 31), 49370#(= main_~i~0 32), 49371#(= main_~i~0 33), 49372#(= main_~i~0 34), 49373#(= main_~i~0 35), 49374#(= main_~i~0 36), 49375#(= main_~i~0 37), 49376#(= main_~i~0 38), 49377#(= main_~i~0 39), 49378#(= main_~i~0 40), 49379#(= main_~i~0 41), 49380#(= main_~i~0 42), 49381#(= main_~i~0 43), 49382#(= main_~i~0 44), 49383#(= main_~i~0 45), 49384#(= main_~i~0 46), 49385#(= main_~i~0 47), 49386#(= main_~i~0 48), 49387#(= main_~i~0 49), 49388#(= main_~i~0 50), 49389#(= main_~i~0 51), 49390#(= main_~i~0 52), 49391#(= main_~i~0 53), 49392#(= main_~i~0 54), 49393#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:03:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 7590 backedges. 0 proven. 7590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:03:51,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-04-13 14:03:51,419 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-04-13 14:03:51,419 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=3138, Unknown=0, NotChecked=0, Total=3306 [2018-04-13 14:03:51,420 INFO L87 Difference]: Start difference. First operand 796 states and 1071 transitions. Second operand 58 states. [2018-04-13 14:04:01,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:04:01,283 INFO L93 Difference]: Finished difference Result 866 states and 1146 transitions. [2018-04-13 14:04:01,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-04-13 14:04:01,283 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 283 [2018-04-13 14:04:01,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:04:01,285 INFO L225 Difference]: With dead ends: 866 [2018-04-13 14:04:01,285 INFO L226 Difference]: Without dead ends: 866 [2018-04-13 14:04:01,285 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 14:04:01,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2018-04-13 14:04:01,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 810. [2018-04-13 14:04:01,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2018-04-13 14:04:01,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1090 transitions. [2018-04-13 14:04:01,290 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1090 transitions. Word has length 283 [2018-04-13 14:04:01,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:04:01,290 INFO L459 AbstractCegarLoop]: Abstraction has 810 states and 1090 transitions. [2018-04-13 14:04:01,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-04-13 14:04:01,290 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1090 transitions. [2018-04-13 14:04:01,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-04-13 14:04:01,292 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:04:01,292 INFO L355 BasicCegarLoop]: trace histogram [57, 57, 56, 56, 56, 1, 1, 1, 1, 1, 1] [2018-04-13 14:04:01,292 INFO L408 AbstractCegarLoop]: === Iteration 57 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:04:01,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1201821123, 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 14:04:01,294 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:04:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:04:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:04:02,422 INFO L134 CoverageAnalysis]: Checked inductivity of 7868 backedges. 0 proven. 7868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:04:02,438 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:04:02,439 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2018-04-13 14:04:02,439 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:04:02,439 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 14:04:02,439 INFO L182 omatonBuilderFactory]: Interpolants [51074#(= 0 main_~i~0), 51075#(= main_~i~0 1), 51076#(= 2 main_~i~0), 51077#(= main_~i~0 3), 51078#(= main_~i~0 4), 51079#(= main_~i~0 5), 51080#(= main_~i~0 6), 51081#(= main_~i~0 7), 51082#(= main_~i~0 8), 51083#(= main_~i~0 9), 51084#(= main_~i~0 10), 51085#(= main_~i~0 11), 51086#(= main_~i~0 12), 51087#(= main_~i~0 13), 51088#(= main_~i~0 14), 51089#(= main_~i~0 15), 51090#(= main_~i~0 16), 51091#(= main_~i~0 17), 51092#(= main_~i~0 18), 51093#(= main_~i~0 19), 51094#(= main_~i~0 20), 51095#(= main_~i~0 21), 51096#(= main_~i~0 22), 51097#(= main_~i~0 23), 51098#(= main_~i~0 24), 51099#(= main_~i~0 25), 51100#(= main_~i~0 26), 51101#(= main_~i~0 27), 51102#(= main_~i~0 28), 51103#(= main_~i~0 29), 51104#(= main_~i~0 30), 51105#(= main_~i~0 31), 51106#(= main_~i~0 32), 51107#(= main_~i~0 33), 51108#(= main_~i~0 34), 51109#(= main_~i~0 35), 51110#(= main_~i~0 36), 51111#(= main_~i~0 37), 51112#(= main_~i~0 38), 51113#(= main_~i~0 39), 51114#(= main_~i~0 40), 51115#(= main_~i~0 41), 51116#(= main_~i~0 42), 51117#(= main_~i~0 43), 51118#(= main_~i~0 44), 51119#(= main_~i~0 45), 51120#(= main_~i~0 46), 51121#(= main_~i~0 47), 51122#(= main_~i~0 48), 51123#(= main_~i~0 49), 51124#(= main_~i~0 50), 51125#(= main_~i~0 51), 51126#(= main_~i~0 52), 51127#(= main_~i~0 53), 51128#(= main_~i~0 54), 51129#(= main_~i~0 55), 51130#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 51070#true, 51071#false] [2018-04-13 14:04:02,439 INFO L134 CoverageAnalysis]: Checked inductivity of 7868 backedges. 0 proven. 7868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:04:02,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-04-13 14:04:02,440 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-04-13 14:04:02,440 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=3251, Unknown=0, NotChecked=0, Total=3422 [2018-04-13 14:04:02,440 INFO L87 Difference]: Start difference. First operand 810 states and 1090 transitions. Second operand 59 states. [2018-04-13 14:04:12,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:04:12,661 INFO L93 Difference]: Finished difference Result 881 states and 1166 transitions. [2018-04-13 14:04:12,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-04-13 14:04:12,661 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 288 [2018-04-13 14:04:12,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:04:12,663 INFO L225 Difference]: With dead ends: 881 [2018-04-13 14:04:12,663 INFO L226 Difference]: Without dead ends: 881 [2018-04-13 14:04:12,663 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=171, Invalid=3251, Unknown=0, NotChecked=0, Total=3422 [2018-04-13 14:04:12,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2018-04-13 14:04:12,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 824. [2018-04-13 14:04:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2018-04-13 14:04:12,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1109 transitions. [2018-04-13 14:04:12,668 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1109 transitions. Word has length 288 [2018-04-13 14:04:12,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:04:12,668 INFO L459 AbstractCegarLoop]: Abstraction has 824 states and 1109 transitions. [2018-04-13 14:04:12,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-04-13 14:04:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1109 transitions. [2018-04-13 14:04:12,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2018-04-13 14:04:12,670 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:04:12,670 INFO L355 BasicCegarLoop]: trace histogram [58, 58, 57, 57, 57, 1, 1, 1, 1, 1, 1] [2018-04-13 14:04:12,670 INFO L408 AbstractCegarLoop]: === Iteration 58 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:04:12,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2104881878, 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 14:04:12,672 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:04:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:04:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:04:13,484 INFO L134 CoverageAnalysis]: Checked inductivity of 8151 backedges. 0 proven. 8151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:04:13,501 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:04:13,501 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2018-04-13 14:04:13,501 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:04:13,501 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 14:04:13,502 INFO L182 omatonBuilderFactory]: Interpolants [52864#(= main_~i~0 24), 52865#(= main_~i~0 25), 52866#(= main_~i~0 26), 52867#(= main_~i~0 27), 52868#(= main_~i~0 28), 52869#(= main_~i~0 29), 52870#(= main_~i~0 30), 52871#(= main_~i~0 31), 52872#(= main_~i~0 32), 52873#(= main_~i~0 33), 52874#(= main_~i~0 34), 52875#(= main_~i~0 35), 52876#(= main_~i~0 36), 52877#(= main_~i~0 37), 52878#(= main_~i~0 38), 52879#(= main_~i~0 39), 52880#(= main_~i~0 40), 52881#(= main_~i~0 41), 52882#(= main_~i~0 42), 52883#(= main_~i~0 43), 52884#(= main_~i~0 44), 52885#(= main_~i~0 45), 52886#(= main_~i~0 46), 52887#(= main_~i~0 47), 52888#(= main_~i~0 48), 52889#(= main_~i~0 49), 52890#(= main_~i~0 50), 52891#(= main_~i~0 51), 52892#(= main_~i~0 52), 52893#(= main_~i~0 53), 52894#(= main_~i~0 54), 52895#(= main_~i~0 55), 52896#(= main_~i~0 56), 52897#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 52836#true, 52837#false, 52840#(= 0 main_~i~0), 52841#(= main_~i~0 1), 52842#(= 2 main_~i~0), 52843#(= main_~i~0 3), 52844#(= main_~i~0 4), 52845#(= main_~i~0 5), 52846#(= main_~i~0 6), 52847#(= main_~i~0 7), 52848#(= main_~i~0 8), 52849#(= main_~i~0 9), 52850#(= main_~i~0 10), 52851#(= main_~i~0 11), 52852#(= main_~i~0 12), 52853#(= main_~i~0 13), 52854#(= main_~i~0 14), 52855#(= main_~i~0 15), 52856#(= main_~i~0 16), 52857#(= main_~i~0 17), 52858#(= main_~i~0 18), 52859#(= main_~i~0 19), 52860#(= main_~i~0 20), 52861#(= main_~i~0 21), 52862#(= main_~i~0 22), 52863#(= main_~i~0 23)] [2018-04-13 14:04:13,502 INFO L134 CoverageAnalysis]: Checked inductivity of 8151 backedges. 0 proven. 8151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:04:13,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-04-13 14:04:13,502 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-04-13 14:04:13,503 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=3366, Unknown=0, NotChecked=0, Total=3540 [2018-04-13 14:04:13,503 INFO L87 Difference]: Start difference. First operand 824 states and 1109 transitions. Second operand 60 states. [2018-04-13 14:04:24,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:04:24,025 INFO L93 Difference]: Finished difference Result 896 states and 1186 transitions. [2018-04-13 14:04:24,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-04-13 14:04:24,025 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 293 [2018-04-13 14:04:24,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:04:24,027 INFO L225 Difference]: With dead ends: 896 [2018-04-13 14:04:24,027 INFO L226 Difference]: Without dead ends: 896 [2018-04-13 14:04:24,027 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=174, Invalid=3366, Unknown=0, NotChecked=0, Total=3540 [2018-04-13 14:04:24,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2018-04-13 14:04:24,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 838. [2018-04-13 14:04:24,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2018-04-13 14:04:24,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1128 transitions. [2018-04-13 14:04:24,031 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1128 transitions. Word has length 293 [2018-04-13 14:04:24,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:04:24,032 INFO L459 AbstractCegarLoop]: Abstraction has 838 states and 1128 transitions. [2018-04-13 14:04:24,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-04-13 14:04:24,032 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1128 transitions. [2018-04-13 14:04:24,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-04-13 14:04:24,033 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:04:24,033 INFO L355 BasicCegarLoop]: trace histogram [59, 59, 58, 58, 58, 1, 1, 1, 1, 1, 1] [2018-04-13 14:04:24,033 INFO L408 AbstractCegarLoop]: === Iteration 59 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:04:24,033 INFO L82 PathProgramCache]: Analyzing trace with hash 157295069, 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 14:04:24,036 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:04:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:04:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:04:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 8439 backedges. 0 proven. 8439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:04:24,884 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:04:24,884 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2018-04-13 14:04:24,884 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:04:24,884 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 14:04:24,885 INFO L182 omatonBuilderFactory]: Interpolants [54656#(= main_~i~0 20), 54657#(= main_~i~0 21), 54658#(= main_~i~0 22), 54659#(= main_~i~0 23), 54660#(= main_~i~0 24), 54661#(= main_~i~0 25), 54662#(= main_~i~0 26), 54663#(= main_~i~0 27), 54664#(= main_~i~0 28), 54665#(= main_~i~0 29), 54666#(= main_~i~0 30), 54667#(= main_~i~0 31), 54668#(= main_~i~0 32), 54669#(= main_~i~0 33), 54670#(= main_~i~0 34), 54671#(= main_~i~0 35), 54672#(= main_~i~0 36), 54673#(= main_~i~0 37), 54674#(= main_~i~0 38), 54675#(= main_~i~0 39), 54676#(= main_~i~0 40), 54677#(= main_~i~0 41), 54678#(= main_~i~0 42), 54679#(= main_~i~0 43), 54680#(= main_~i~0 44), 54681#(= main_~i~0 45), 54682#(= main_~i~0 46), 54683#(= main_~i~0 47), 54684#(= main_~i~0 48), 54685#(= main_~i~0 49), 54686#(= main_~i~0 50), 54687#(= main_~i~0 51), 54688#(= main_~i~0 52), 54689#(= main_~i~0 53), 54690#(= main_~i~0 54), 54691#(= main_~i~0 55), 54692#(= main_~i~0 56), 54693#(= main_~i~0 57), 54694#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 54632#true, 54633#false, 54636#(= 0 main_~i~0), 54637#(= main_~i~0 1), 54638#(= 2 main_~i~0), 54639#(= main_~i~0 3), 54640#(= main_~i~0 4), 54641#(= main_~i~0 5), 54642#(= main_~i~0 6), 54643#(= main_~i~0 7), 54644#(= main_~i~0 8), 54645#(= main_~i~0 9), 54646#(= main_~i~0 10), 54647#(= main_~i~0 11), 54648#(= main_~i~0 12), 54649#(= main_~i~0 13), 54650#(= main_~i~0 14), 54651#(= main_~i~0 15), 54652#(= main_~i~0 16), 54653#(= main_~i~0 17), 54654#(= main_~i~0 18), 54655#(= main_~i~0 19)] [2018-04-13 14:04:24,885 INFO L134 CoverageAnalysis]: Checked inductivity of 8439 backedges. 0 proven. 8439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:04:24,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-04-13 14:04:24,885 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-04-13 14:04:24,885 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=3483, Unknown=0, NotChecked=0, Total=3660 [2018-04-13 14:04:24,886 INFO L87 Difference]: Start difference. First operand 838 states and 1128 transitions. Second operand 61 states. [2018-04-13 14:04:35,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:04:35,894 INFO L93 Difference]: Finished difference Result 911 states and 1206 transitions. [2018-04-13 14:04:35,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-04-13 14:04:35,894 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 298 [2018-04-13 14:04:35,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:04:35,895 INFO L225 Difference]: With dead ends: 911 [2018-04-13 14:04:35,896 INFO L226 Difference]: Without dead ends: 911 [2018-04-13 14:04:35,896 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 14:04:35,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2018-04-13 14:04:35,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 852. [2018-04-13 14:04:35,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 852 states. [2018-04-13 14:04:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1147 transitions. [2018-04-13 14:04:35,900 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1147 transitions. Word has length 298 [2018-04-13 14:04:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:04:35,901 INFO L459 AbstractCegarLoop]: Abstraction has 852 states and 1147 transitions. [2018-04-13 14:04:35,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-04-13 14:04:35,901 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1147 transitions. [2018-04-13 14:04:35,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-04-13 14:04:35,902 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:04:35,902 INFO L355 BasicCegarLoop]: trace histogram [60, 60, 59, 59, 59, 1, 1, 1, 1, 1, 1] [2018-04-13 14:04:35,902 INFO L408 AbstractCegarLoop]: === Iteration 60 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:04:35,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1620230346, 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 14:04:35,904 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:04:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:04:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:04:36,758 INFO L134 CoverageAnalysis]: Checked inductivity of 8732 backedges. 0 proven. 8732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:04:36,776 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:04:36,776 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2018-04-13 14:04:36,777 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:04:36,777 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 14:04:36,777 INFO L182 omatonBuilderFactory]: Interpolants [56458#true, 56459#false, 56462#(= 0 main_~i~0), 56463#(= main_~i~0 1), 56464#(= 2 main_~i~0), 56465#(= main_~i~0 3), 56466#(= main_~i~0 4), 56467#(= main_~i~0 5), 56468#(= main_~i~0 6), 56469#(= main_~i~0 7), 56470#(= main_~i~0 8), 56471#(= main_~i~0 9), 56472#(= main_~i~0 10), 56473#(= main_~i~0 11), 56474#(= main_~i~0 12), 56475#(= main_~i~0 13), 56476#(= main_~i~0 14), 56477#(= main_~i~0 15), 56478#(= main_~i~0 16), 56479#(= main_~i~0 17), 56480#(= main_~i~0 18), 56481#(= main_~i~0 19), 56482#(= main_~i~0 20), 56483#(= main_~i~0 21), 56484#(= main_~i~0 22), 56485#(= main_~i~0 23), 56486#(= main_~i~0 24), 56487#(= main_~i~0 25), 56488#(= main_~i~0 26), 56489#(= main_~i~0 27), 56490#(= main_~i~0 28), 56491#(= main_~i~0 29), 56492#(= main_~i~0 30), 56493#(= main_~i~0 31), 56494#(= main_~i~0 32), 56495#(= main_~i~0 33), 56496#(= main_~i~0 34), 56497#(= main_~i~0 35), 56498#(= main_~i~0 36), 56499#(= main_~i~0 37), 56500#(= main_~i~0 38), 56501#(= main_~i~0 39), 56502#(= main_~i~0 40), 56503#(= main_~i~0 41), 56504#(= main_~i~0 42), 56505#(= main_~i~0 43), 56506#(= main_~i~0 44), 56507#(= main_~i~0 45), 56508#(= main_~i~0 46), 56509#(= main_~i~0 47), 56510#(= main_~i~0 48), 56511#(= main_~i~0 49), 56512#(= main_~i~0 50), 56513#(= main_~i~0 51), 56514#(= main_~i~0 52), 56515#(= main_~i~0 53), 56516#(= main_~i~0 54), 56517#(= main_~i~0 55), 56518#(= main_~i~0 56), 56519#(= main_~i~0 57), 56520#(= main_~i~0 58), 56521#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:04:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 8732 backedges. 0 proven. 8732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:04:36,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-04-13 14:04:36,777 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-04-13 14:04:36,778 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=3602, Unknown=0, NotChecked=0, Total=3782 [2018-04-13 14:04:36,778 INFO L87 Difference]: Start difference. First operand 852 states and 1147 transitions. Second operand 62 states. [2018-04-13 14:04:48,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:04:48,020 INFO L93 Difference]: Finished difference Result 926 states and 1226 transitions. [2018-04-13 14:04:48,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-04-13 14:04:48,020 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 303 [2018-04-13 14:04:48,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:04:48,021 INFO L225 Difference]: With dead ends: 926 [2018-04-13 14:04:48,021 INFO L226 Difference]: Without dead ends: 926 [2018-04-13 14:04:48,021 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=180, Invalid=3602, Unknown=0, NotChecked=0, Total=3782 [2018-04-13 14:04:48,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2018-04-13 14:04:48,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 866. [2018-04-13 14:04:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2018-04-13 14:04:48,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1166 transitions. [2018-04-13 14:04:48,026 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1166 transitions. Word has length 303 [2018-04-13 14:04:48,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:04:48,026 INFO L459 AbstractCegarLoop]: Abstraction has 866 states and 1166 transitions. [2018-04-13 14:04:48,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-04-13 14:04:48,026 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1166 transitions. [2018-04-13 14:04:48,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-04-13 14:04:48,027 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:04:48,027 INFO L355 BasicCegarLoop]: trace histogram [61, 61, 60, 60, 60, 1, 1, 1, 1, 1, 1] [2018-04-13 14:04:48,028 INFO L408 AbstractCegarLoop]: === Iteration 61 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:04:48,028 INFO L82 PathProgramCache]: Analyzing trace with hash -571895427, 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 14:04:48,030 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:04:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:04:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:04:48,915 INFO L134 CoverageAnalysis]: Checked inductivity of 9030 backedges. 0 proven. 9030 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:04:48,932 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:04:48,932 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2018-04-13 14:04:48,932 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:04:48,932 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 14:04:48,932 INFO L182 omatonBuilderFactory]: Interpolants [58368#(= main_~i~0 50), 58369#(= main_~i~0 51), 58370#(= main_~i~0 52), 58371#(= main_~i~0 53), 58372#(= main_~i~0 54), 58373#(= main_~i~0 55), 58374#(= main_~i~0 56), 58375#(= main_~i~0 57), 58376#(= main_~i~0 58), 58377#(= main_~i~0 59), 58378#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 58314#true, 58315#false, 58318#(= 0 main_~i~0), 58319#(= main_~i~0 1), 58320#(= 2 main_~i~0), 58321#(= main_~i~0 3), 58322#(= main_~i~0 4), 58323#(= main_~i~0 5), 58324#(= main_~i~0 6), 58325#(= main_~i~0 7), 58326#(= main_~i~0 8), 58327#(= main_~i~0 9), 58328#(= main_~i~0 10), 58329#(= main_~i~0 11), 58330#(= main_~i~0 12), 58331#(= main_~i~0 13), 58332#(= main_~i~0 14), 58333#(= main_~i~0 15), 58334#(= main_~i~0 16), 58335#(= main_~i~0 17), 58336#(= main_~i~0 18), 58337#(= main_~i~0 19), 58338#(= main_~i~0 20), 58339#(= main_~i~0 21), 58340#(= main_~i~0 22), 58341#(= main_~i~0 23), 58342#(= main_~i~0 24), 58343#(= main_~i~0 25), 58344#(= main_~i~0 26), 58345#(= main_~i~0 27), 58346#(= main_~i~0 28), 58347#(= main_~i~0 29), 58348#(= main_~i~0 30), 58349#(= main_~i~0 31), 58350#(= main_~i~0 32), 58351#(= main_~i~0 33), 58352#(= main_~i~0 34), 58353#(= main_~i~0 35), 58354#(= main_~i~0 36), 58355#(= main_~i~0 37), 58356#(= main_~i~0 38), 58357#(= main_~i~0 39), 58358#(= main_~i~0 40), 58359#(= main_~i~0 41), 58360#(= main_~i~0 42), 58361#(= main_~i~0 43), 58362#(= main_~i~0 44), 58363#(= main_~i~0 45), 58364#(= main_~i~0 46), 58365#(= main_~i~0 47), 58366#(= main_~i~0 48), 58367#(= main_~i~0 49)] [2018-04-13 14:04:48,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9030 backedges. 0 proven. 9030 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:04:48,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-04-13 14:04:48,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-04-13 14:04:48,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=3723, Unknown=0, NotChecked=0, Total=3906 [2018-04-13 14:04:48,933 INFO L87 Difference]: Start difference. First operand 866 states and 1166 transitions. Second operand 63 states. [2018-04-13 14:05:00,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:05:00,630 INFO L93 Difference]: Finished difference Result 941 states and 1246 transitions. [2018-04-13 14:05:00,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-04-13 14:05:00,630 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 308 [2018-04-13 14:05:00,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:05:00,631 INFO L225 Difference]: With dead ends: 941 [2018-04-13 14:05:00,631 INFO L226 Difference]: Without dead ends: 941 [2018-04-13 14:05:00,632 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 14:05:00,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2018-04-13 14:05:00,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 880. [2018-04-13 14:05:00,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2018-04-13 14:05:00,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1185 transitions. [2018-04-13 14:05:00,636 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1185 transitions. Word has length 308 [2018-04-13 14:05:00,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:05:00,636 INFO L459 AbstractCegarLoop]: Abstraction has 880 states and 1185 transitions. [2018-04-13 14:05:00,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-04-13 14:05:00,636 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1185 transitions. [2018-04-13 14:05:00,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-04-13 14:05:00,638 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:05:00,638 INFO L355 BasicCegarLoop]: trace histogram [62, 62, 61, 61, 61, 1, 1, 1, 1, 1, 1] [2018-04-13 14:05:00,638 INFO L408 AbstractCegarLoop]: === Iteration 62 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:05:00,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1283943530, 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 14:05:00,640 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:05:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:05:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:05:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 9333 backedges. 0 proven. 9333 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:05:01,833 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:05:01,834 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2018-04-13 14:05:01,834 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:05:01,834 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 14:05:01,834 INFO L182 omatonBuilderFactory]: Interpolants [60200#true, 60201#false, 60204#(= 0 main_~i~0), 60205#(= main_~i~0 1), 60206#(= 2 main_~i~0), 60207#(= main_~i~0 3), 60208#(= main_~i~0 4), 60209#(= main_~i~0 5), 60210#(= main_~i~0 6), 60211#(= main_~i~0 7), 60212#(= main_~i~0 8), 60213#(= main_~i~0 9), 60214#(= main_~i~0 10), 60215#(= main_~i~0 11), 60216#(= main_~i~0 12), 60217#(= main_~i~0 13), 60218#(= main_~i~0 14), 60219#(= main_~i~0 15), 60220#(= main_~i~0 16), 60221#(= main_~i~0 17), 60222#(= main_~i~0 18), 60223#(= main_~i~0 19), 60224#(= main_~i~0 20), 60225#(= main_~i~0 21), 60226#(= main_~i~0 22), 60227#(= main_~i~0 23), 60228#(= main_~i~0 24), 60229#(= main_~i~0 25), 60230#(= main_~i~0 26), 60231#(= main_~i~0 27), 60232#(= main_~i~0 28), 60233#(= main_~i~0 29), 60234#(= main_~i~0 30), 60235#(= main_~i~0 31), 60236#(= main_~i~0 32), 60237#(= main_~i~0 33), 60238#(= main_~i~0 34), 60239#(= main_~i~0 35), 60240#(= main_~i~0 36), 60241#(= main_~i~0 37), 60242#(= main_~i~0 38), 60243#(= main_~i~0 39), 60244#(= main_~i~0 40), 60245#(= main_~i~0 41), 60246#(= main_~i~0 42), 60247#(= main_~i~0 43), 60248#(= main_~i~0 44), 60249#(= main_~i~0 45), 60250#(= main_~i~0 46), 60251#(= main_~i~0 47), 60252#(= main_~i~0 48), 60253#(= main_~i~0 49), 60254#(= main_~i~0 50), 60255#(= main_~i~0 51), 60256#(= main_~i~0 52), 60257#(= main_~i~0 53), 60258#(= main_~i~0 54), 60259#(= main_~i~0 55), 60260#(= main_~i~0 56), 60261#(= main_~i~0 57), 60262#(= main_~i~0 58), 60263#(= main_~i~0 59), 60264#(= main_~i~0 60), 60265#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:05:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 9333 backedges. 0 proven. 9333 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:05:01,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-13 14:05:01,835 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-13 14:05:01,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=3846, Unknown=0, NotChecked=0, Total=4032 [2018-04-13 14:05:01,835 INFO L87 Difference]: Start difference. First operand 880 states and 1185 transitions. Second operand 64 states. [2018-04-13 14:05:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:05:13,940 INFO L93 Difference]: Finished difference Result 956 states and 1266 transitions. [2018-04-13 14:05:13,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-04-13 14:05:13,940 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 313 [2018-04-13 14:05:13,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:05:13,941 INFO L225 Difference]: With dead ends: 956 [2018-04-13 14:05:13,942 INFO L226 Difference]: Without dead ends: 956 [2018-04-13 14:05:13,942 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=186, Invalid=3846, Unknown=0, NotChecked=0, Total=4032 [2018-04-13 14:05:13,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2018-04-13 14:05:13,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 894. [2018-04-13 14:05:13,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2018-04-13 14:05:13,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1204 transitions. [2018-04-13 14:05:13,947 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1204 transitions. Word has length 313 [2018-04-13 14:05:13,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:05:13,947 INFO L459 AbstractCegarLoop]: Abstraction has 894 states and 1204 transitions. [2018-04-13 14:05:13,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-13 14:05:13,948 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1204 transitions. [2018-04-13 14:05:13,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-04-13 14:05:13,949 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:05:13,949 INFO L355 BasicCegarLoop]: trace histogram [63, 63, 62, 62, 62, 1, 1, 1, 1, 1, 1] [2018-04-13 14:05:13,949 INFO L408 AbstractCegarLoop]: === Iteration 63 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:05:13,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1817970403, 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 14:05:13,951 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:05:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:05:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:05:14,889 INFO L134 CoverageAnalysis]: Checked inductivity of 9641 backedges. 0 proven. 9641 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:05:14,905 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:05:14,906 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-04-13 14:05:14,906 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:05:14,906 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 14:05:14,906 INFO L182 omatonBuilderFactory]: Interpolants [62116#true, 62117#false, 62120#(= 0 main_~i~0), 62121#(= main_~i~0 1), 62122#(= 2 main_~i~0), 62123#(= main_~i~0 3), 62124#(= main_~i~0 4), 62125#(= main_~i~0 5), 62126#(= main_~i~0 6), 62127#(= main_~i~0 7), 62128#(= main_~i~0 8), 62129#(= main_~i~0 9), 62130#(= main_~i~0 10), 62131#(= main_~i~0 11), 62132#(= main_~i~0 12), 62133#(= main_~i~0 13), 62134#(= main_~i~0 14), 62135#(= main_~i~0 15), 62136#(= main_~i~0 16), 62137#(= main_~i~0 17), 62138#(= main_~i~0 18), 62139#(= main_~i~0 19), 62140#(= main_~i~0 20), 62141#(= main_~i~0 21), 62142#(= main_~i~0 22), 62143#(= main_~i~0 23), 62144#(= main_~i~0 24), 62145#(= main_~i~0 25), 62146#(= main_~i~0 26), 62147#(= main_~i~0 27), 62148#(= main_~i~0 28), 62149#(= main_~i~0 29), 62150#(= main_~i~0 30), 62151#(= main_~i~0 31), 62152#(= main_~i~0 32), 62153#(= main_~i~0 33), 62154#(= main_~i~0 34), 62155#(= main_~i~0 35), 62156#(= main_~i~0 36), 62157#(= main_~i~0 37), 62158#(= main_~i~0 38), 62159#(= main_~i~0 39), 62160#(= main_~i~0 40), 62161#(= main_~i~0 41), 62162#(= main_~i~0 42), 62163#(= main_~i~0 43), 62164#(= main_~i~0 44), 62165#(= main_~i~0 45), 62166#(= main_~i~0 46), 62167#(= main_~i~0 47), 62168#(= main_~i~0 48), 62169#(= main_~i~0 49), 62170#(= main_~i~0 50), 62171#(= main_~i~0 51), 62172#(= main_~i~0 52), 62173#(= main_~i~0 53), 62174#(= main_~i~0 54), 62175#(= main_~i~0 55), 62176#(= main_~i~0 56), 62177#(= main_~i~0 57), 62178#(= main_~i~0 58), 62179#(= main_~i~0 59), 62180#(= main_~i~0 60), 62181#(= main_~i~0 61), 62182#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:05:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 9641 backedges. 0 proven. 9641 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:05:14,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-04-13 14:05:14,907 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-04-13 14:05:14,907 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=3971, Unknown=0, NotChecked=0, Total=4160 [2018-04-13 14:05:14,907 INFO L87 Difference]: Start difference. First operand 894 states and 1204 transitions. Second operand 65 states. [2018-04-13 14:05:27,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:05:27,358 INFO L93 Difference]: Finished difference Result 971 states and 1286 transitions. [2018-04-13 14:05:27,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-04-13 14:05:27,358 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 318 [2018-04-13 14:05:27,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:05:27,359 INFO L225 Difference]: With dead ends: 971 [2018-04-13 14:05:27,360 INFO L226 Difference]: Without dead ends: 971 [2018-04-13 14:05:27,360 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 14:05:27,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2018-04-13 14:05:27,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 908. [2018-04-13 14:05:27,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2018-04-13 14:05:27,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1223 transitions. [2018-04-13 14:05:27,368 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1223 transitions. Word has length 318 [2018-04-13 14:05:27,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:05:27,368 INFO L459 AbstractCegarLoop]: Abstraction has 908 states and 1223 transitions. [2018-04-13 14:05:27,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-04-13 14:05:27,368 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1223 transitions. [2018-04-13 14:05:27,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2018-04-13 14:05:27,369 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:05:27,369 INFO L355 BasicCegarLoop]: trace histogram [64, 64, 63, 63, 63, 1, 1, 1, 1, 1, 1] [2018-04-13 14:05:27,369 INFO L408 AbstractCegarLoop]: === Iteration 64 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:05:27,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1445851126, 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 14:05:27,373 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:05:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:05:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:05:28,339 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:05:28,356 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:05:28,356 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-04-13 14:05:28,356 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:05:28,356 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 14:05:28,356 INFO L182 omatonBuilderFactory]: Interpolants [64128#(= main_~i~0 62), 64129#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 64062#true, 64063#false, 64066#(= 0 main_~i~0), 64067#(= main_~i~0 1), 64068#(= 2 main_~i~0), 64069#(= main_~i~0 3), 64070#(= main_~i~0 4), 64071#(= main_~i~0 5), 64072#(= main_~i~0 6), 64073#(= main_~i~0 7), 64074#(= main_~i~0 8), 64075#(= main_~i~0 9), 64076#(= main_~i~0 10), 64077#(= main_~i~0 11), 64078#(= main_~i~0 12), 64079#(= main_~i~0 13), 64080#(= main_~i~0 14), 64081#(= main_~i~0 15), 64082#(= main_~i~0 16), 64083#(= main_~i~0 17), 64084#(= main_~i~0 18), 64085#(= main_~i~0 19), 64086#(= main_~i~0 20), 64087#(= main_~i~0 21), 64088#(= main_~i~0 22), 64089#(= main_~i~0 23), 64090#(= main_~i~0 24), 64091#(= main_~i~0 25), 64092#(= main_~i~0 26), 64093#(= main_~i~0 27), 64094#(= main_~i~0 28), 64095#(= main_~i~0 29), 64096#(= main_~i~0 30), 64097#(= main_~i~0 31), 64098#(= main_~i~0 32), 64099#(= main_~i~0 33), 64100#(= main_~i~0 34), 64101#(= main_~i~0 35), 64102#(= main_~i~0 36), 64103#(= main_~i~0 37), 64104#(= main_~i~0 38), 64105#(= main_~i~0 39), 64106#(= main_~i~0 40), 64107#(= main_~i~0 41), 64108#(= main_~i~0 42), 64109#(= main_~i~0 43), 64110#(= main_~i~0 44), 64111#(= main_~i~0 45), 64112#(= main_~i~0 46), 64113#(= main_~i~0 47), 64114#(= main_~i~0 48), 64115#(= main_~i~0 49), 64116#(= main_~i~0 50), 64117#(= main_~i~0 51), 64118#(= main_~i~0 52), 64119#(= main_~i~0 53), 64120#(= main_~i~0 54), 64121#(= main_~i~0 55), 64122#(= main_~i~0 56), 64123#(= main_~i~0 57), 64124#(= main_~i~0 58), 64125#(= main_~i~0 59), 64126#(= main_~i~0 60), 64127#(= main_~i~0 61)] [2018-04-13 14:05:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:05:28,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-04-13 14:05:28,357 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-04-13 14:05:28,357 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=4098, Unknown=0, NotChecked=0, Total=4290 [2018-04-13 14:05:28,357 INFO L87 Difference]: Start difference. First operand 908 states and 1223 transitions. Second operand 66 states. [2018-04-13 14:05:41,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:05:41,272 INFO L93 Difference]: Finished difference Result 986 states and 1306 transitions. [2018-04-13 14:05:41,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-04-13 14:05:41,272 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 323 [2018-04-13 14:05:41,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:05:41,273 INFO L225 Difference]: With dead ends: 986 [2018-04-13 14:05:41,274 INFO L226 Difference]: Without dead ends: 986 [2018-04-13 14:05:41,274 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 14:05:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2018-04-13 14:05:41,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 922. [2018-04-13 14:05:41,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2018-04-13 14:05:41,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1242 transitions. [2018-04-13 14:05:41,279 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1242 transitions. Word has length 323 [2018-04-13 14:05:41,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:05:41,280 INFO L459 AbstractCegarLoop]: Abstraction has 922 states and 1242 transitions. [2018-04-13 14:05:41,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-04-13 14:05:41,280 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1242 transitions. [2018-04-13 14:05:41,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-04-13 14:05:41,281 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:05:41,281 INFO L355 BasicCegarLoop]: trace histogram [65, 65, 64, 64, 64, 1, 1, 1, 1, 1, 1] [2018-04-13 14:05:41,281 INFO L408 AbstractCegarLoop]: === Iteration 65 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:05:41,282 INFO L82 PathProgramCache]: Analyzing trace with hash -71739203, 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 14:05:41,284 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:05:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:05:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:05:42,331 INFO L134 CoverageAnalysis]: Checked inductivity of 10272 backedges. 0 proven. 10272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:05:42,347 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:05:42,347 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-04-13 14:05:42,347 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:05:42,347 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 14:05:42,347 INFO L182 omatonBuilderFactory]: Interpolants [66049#(= main_~i~0 7), 66048#(= main_~i~0 6), 66051#(= main_~i~0 9), 66050#(= main_~i~0 8), 66053#(= main_~i~0 11), 66052#(= main_~i~0 10), 66055#(= main_~i~0 13), 66054#(= main_~i~0 12), 66057#(= main_~i~0 15), 66056#(= main_~i~0 14), 66059#(= main_~i~0 17), 66058#(= main_~i~0 16), 66061#(= main_~i~0 19), 66060#(= main_~i~0 18), 66063#(= main_~i~0 21), 66062#(= main_~i~0 20), 66065#(= main_~i~0 23), 66064#(= main_~i~0 22), 66067#(= main_~i~0 25), 66066#(= main_~i~0 24), 66069#(= main_~i~0 27), 66068#(= main_~i~0 26), 66071#(= main_~i~0 29), 66070#(= main_~i~0 28), 66073#(= main_~i~0 31), 66072#(= main_~i~0 30), 66075#(= main_~i~0 33), 66074#(= main_~i~0 32), 66077#(= main_~i~0 35), 66076#(= main_~i~0 34), 66079#(= main_~i~0 37), 66078#(= main_~i~0 36), 66081#(= main_~i~0 39), 66080#(= main_~i~0 38), 66083#(= main_~i~0 41), 66082#(= main_~i~0 40), 66085#(= main_~i~0 43), 66084#(= main_~i~0 42), 66087#(= main_~i~0 45), 66086#(= main_~i~0 44), 66089#(= main_~i~0 47), 66088#(= main_~i~0 46), 66091#(= main_~i~0 49), 66090#(= main_~i~0 48), 66093#(= main_~i~0 51), 66092#(= main_~i~0 50), 66095#(= main_~i~0 53), 66094#(= main_~i~0 52), 66097#(= main_~i~0 55), 66096#(= main_~i~0 54), 66099#(= main_~i~0 57), 66098#(= main_~i~0 56), 66101#(= main_~i~0 59), 66100#(= main_~i~0 58), 66103#(= main_~i~0 61), 66102#(= main_~i~0 60), 66105#(= main_~i~0 63), 66104#(= main_~i~0 62), 66106#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 66039#false, 66038#true, 66043#(= main_~i~0 1), 66042#(= 0 main_~i~0), 66045#(= main_~i~0 3), 66044#(= 2 main_~i~0), 66047#(= main_~i~0 5), 66046#(= main_~i~0 4)] [2018-04-13 14:05:42,348 INFO L134 CoverageAnalysis]: Checked inductivity of 10272 backedges. 0 proven. 10272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:05:42,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-04-13 14:05:42,348 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-04-13 14:05:42,348 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=4227, Unknown=0, NotChecked=0, Total=4422 [2018-04-13 14:05:42,348 INFO L87 Difference]: Start difference. First operand 922 states and 1242 transitions. Second operand 67 states. [2018-04-13 14:05:55,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:05:55,735 INFO L93 Difference]: Finished difference Result 1001 states and 1326 transitions. [2018-04-13 14:05:55,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-04-13 14:05:55,735 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 328 [2018-04-13 14:05:55,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:05:55,736 INFO L225 Difference]: With dead ends: 1001 [2018-04-13 14:05:55,736 INFO L226 Difference]: Without dead ends: 1001 [2018-04-13 14:05:55,737 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=195, Invalid=4227, Unknown=0, NotChecked=0, Total=4422 [2018-04-13 14:05:55,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2018-04-13 14:05:55,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 936. [2018-04-13 14:05:55,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2018-04-13 14:05:55,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1261 transitions. [2018-04-13 14:05:55,745 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1261 transitions. Word has length 328 [2018-04-13 14:05:55,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:05:55,746 INFO L459 AbstractCegarLoop]: Abstraction has 936 states and 1261 transitions. [2018-04-13 14:05:55,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-04-13 14:05:55,746 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1261 transitions. [2018-04-13 14:05:55,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2018-04-13 14:05:55,748 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:05:55,748 INFO L355 BasicCegarLoop]: trace histogram [66, 66, 65, 65, 65, 1, 1, 1, 1, 1, 1] [2018-04-13 14:05:55,748 INFO L408 AbstractCegarLoop]: === Iteration 66 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:05:55,749 INFO L82 PathProgramCache]: Analyzing trace with hash -526166954, 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 14:05:55,751 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:05:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:05:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:05:56,779 INFO L134 CoverageAnalysis]: Checked inductivity of 10595 backedges. 0 proven. 10595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:05:56,795 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:05:56,795 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2018-04-13 14:05:56,796 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:05:56,796 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 14:05:56,796 INFO L182 omatonBuilderFactory]: Interpolants [68097#(= main_~i~0 49), 68096#(= main_~i~0 48), 68099#(= main_~i~0 51), 68098#(= main_~i~0 50), 68101#(= main_~i~0 53), 68100#(= main_~i~0 52), 68103#(= main_~i~0 55), 68102#(= main_~i~0 54), 68105#(= main_~i~0 57), 68104#(= main_~i~0 56), 68107#(= main_~i~0 59), 68106#(= main_~i~0 58), 68109#(= main_~i~0 61), 68108#(= main_~i~0 60), 68111#(= main_~i~0 63), 68110#(= main_~i~0 62), 68113#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 68112#(= main_~i~0 64), 68045#false, 68044#true, 68049#(= main_~i~0 1), 68048#(= 0 main_~i~0), 68051#(= main_~i~0 3), 68050#(= 2 main_~i~0), 68053#(= main_~i~0 5), 68052#(= main_~i~0 4), 68055#(= main_~i~0 7), 68054#(= main_~i~0 6), 68057#(= main_~i~0 9), 68056#(= main_~i~0 8), 68059#(= main_~i~0 11), 68058#(= main_~i~0 10), 68061#(= main_~i~0 13), 68060#(= main_~i~0 12), 68063#(= main_~i~0 15), 68062#(= main_~i~0 14), 68065#(= main_~i~0 17), 68064#(= main_~i~0 16), 68067#(= main_~i~0 19), 68066#(= main_~i~0 18), 68069#(= main_~i~0 21), 68068#(= main_~i~0 20), 68071#(= main_~i~0 23), 68070#(= main_~i~0 22), 68073#(= main_~i~0 25), 68072#(= main_~i~0 24), 68075#(= main_~i~0 27), 68074#(= main_~i~0 26), 68077#(= main_~i~0 29), 68076#(= main_~i~0 28), 68079#(= main_~i~0 31), 68078#(= main_~i~0 30), 68081#(= main_~i~0 33), 68080#(= main_~i~0 32), 68083#(= main_~i~0 35), 68082#(= main_~i~0 34), 68085#(= main_~i~0 37), 68084#(= main_~i~0 36), 68087#(= main_~i~0 39), 68086#(= main_~i~0 38), 68089#(= main_~i~0 41), 68088#(= main_~i~0 40), 68091#(= main_~i~0 43), 68090#(= main_~i~0 42), 68093#(= main_~i~0 45), 68092#(= main_~i~0 44), 68095#(= main_~i~0 47), 68094#(= main_~i~0 46)] [2018-04-13 14:05:56,796 INFO L134 CoverageAnalysis]: Checked inductivity of 10595 backedges. 0 proven. 10595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:05:56,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-04-13 14:05:56,796 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-04-13 14:05:56,797 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=4358, Unknown=0, NotChecked=0, Total=4556 [2018-04-13 14:05:56,797 INFO L87 Difference]: Start difference. First operand 936 states and 1261 transitions. Second operand 68 states. [2018-04-13 14:06:10,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:06:10,827 INFO L93 Difference]: Finished difference Result 1016 states and 1346 transitions. [2018-04-13 14:06:10,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-13 14:06:10,828 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 333 [2018-04-13 14:06:10,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:06:10,830 INFO L225 Difference]: With dead ends: 1016 [2018-04-13 14:06:10,830 INFO L226 Difference]: Without dead ends: 1016 [2018-04-13 14:06:10,831 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=198, Invalid=4358, Unknown=0, NotChecked=0, Total=4556 [2018-04-13 14:06:10,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2018-04-13 14:06:10,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 950. [2018-04-13 14:06:10,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 950 states. [2018-04-13 14:06:10,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1280 transitions. [2018-04-13 14:06:10,840 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1280 transitions. Word has length 333 [2018-04-13 14:06:10,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:06:10,841 INFO L459 AbstractCegarLoop]: Abstraction has 950 states and 1280 transitions. [2018-04-13 14:06:10,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-04-13 14:06:10,841 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1280 transitions. [2018-04-13 14:06:10,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-04-13 14:06:10,847 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:06:10,848 INFO L355 BasicCegarLoop]: trace histogram [67, 67, 66, 66, 66, 1, 1, 1, 1, 1, 1] [2018-04-13 14:06:10,848 INFO L408 AbstractCegarLoop]: === Iteration 67 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:06:10,848 INFO L82 PathProgramCache]: Analyzing trace with hash -86790051, 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 14:06:10,852 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:06:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:06:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:06:11,919 INFO L134 CoverageAnalysis]: Checked inductivity of 10923 backedges. 0 proven. 10923 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:06:11,935 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:06:11,935 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-04-13 14:06:11,935 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:06:11,935 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 14:06:11,935 INFO L182 omatonBuilderFactory]: Interpolants [70145#(= main_~i~0 61), 70144#(= main_~i~0 60), 70147#(= main_~i~0 63), 70146#(= main_~i~0 62), 70149#(= main_~i~0 65), 70148#(= main_~i~0 64), 70150#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 70081#false, 70080#true, 70085#(= main_~i~0 1), 70084#(= 0 main_~i~0), 70087#(= main_~i~0 3), 70086#(= 2 main_~i~0), 70089#(= main_~i~0 5), 70088#(= main_~i~0 4), 70091#(= main_~i~0 7), 70090#(= main_~i~0 6), 70093#(= main_~i~0 9), 70092#(= main_~i~0 8), 70095#(= main_~i~0 11), 70094#(= main_~i~0 10), 70097#(= main_~i~0 13), 70096#(= main_~i~0 12), 70099#(= main_~i~0 15), 70098#(= main_~i~0 14), 70101#(= main_~i~0 17), 70100#(= main_~i~0 16), 70103#(= main_~i~0 19), 70102#(= main_~i~0 18), 70105#(= main_~i~0 21), 70104#(= main_~i~0 20), 70107#(= main_~i~0 23), 70106#(= main_~i~0 22), 70109#(= main_~i~0 25), 70108#(= main_~i~0 24), 70111#(= main_~i~0 27), 70110#(= main_~i~0 26), 70113#(= main_~i~0 29), 70112#(= main_~i~0 28), 70115#(= main_~i~0 31), 70114#(= main_~i~0 30), 70117#(= main_~i~0 33), 70116#(= main_~i~0 32), 70119#(= main_~i~0 35), 70118#(= main_~i~0 34), 70121#(= main_~i~0 37), 70120#(= main_~i~0 36), 70123#(= main_~i~0 39), 70122#(= main_~i~0 38), 70125#(= main_~i~0 41), 70124#(= main_~i~0 40), 70127#(= main_~i~0 43), 70126#(= main_~i~0 42), 70129#(= main_~i~0 45), 70128#(= main_~i~0 44), 70131#(= main_~i~0 47), 70130#(= main_~i~0 46), 70133#(= main_~i~0 49), 70132#(= main_~i~0 48), 70135#(= main_~i~0 51), 70134#(= main_~i~0 50), 70137#(= main_~i~0 53), 70136#(= main_~i~0 52), 70139#(= main_~i~0 55), 70138#(= main_~i~0 54), 70141#(= main_~i~0 57), 70140#(= main_~i~0 56), 70143#(= main_~i~0 59), 70142#(= main_~i~0 58)] [2018-04-13 14:06:11,936 INFO L134 CoverageAnalysis]: Checked inductivity of 10923 backedges. 0 proven. 10923 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:06:11,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-04-13 14:06:11,936 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-04-13 14:06:11,936 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=4491, Unknown=0, NotChecked=0, Total=4692 [2018-04-13 14:06:11,936 INFO L87 Difference]: Start difference. First operand 950 states and 1280 transitions. Second operand 69 states. [2018-04-13 14:06:26,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:06:26,181 INFO L93 Difference]: Finished difference Result 1031 states and 1366 transitions. [2018-04-13 14:06:26,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-04-13 14:06:26,181 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 338 [2018-04-13 14:06:26,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:06:26,183 INFO L225 Difference]: With dead ends: 1031 [2018-04-13 14:06:26,183 INFO L226 Difference]: Without dead ends: 1031 [2018-04-13 14:06:26,183 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=201, Invalid=4491, Unknown=0, NotChecked=0, Total=4692 [2018-04-13 14:06:26,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2018-04-13 14:06:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 964. [2018-04-13 14:06:26,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2018-04-13 14:06:26,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1299 transitions. [2018-04-13 14:06:26,188 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1299 transitions. Word has length 338 [2018-04-13 14:06:26,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:06:26,188 INFO L459 AbstractCegarLoop]: Abstraction has 964 states and 1299 transitions. [2018-04-13 14:06:26,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-04-13 14:06:26,188 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1299 transitions. [2018-04-13 14:06:26,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-04-13 14:06:26,190 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:06:26,190 INFO L355 BasicCegarLoop]: trace histogram [68, 68, 67, 67, 67, 1, 1, 1, 1, 1, 1] [2018-04-13 14:06:26,190 INFO L408 AbstractCegarLoop]: === Iteration 68 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:06:26,190 INFO L82 PathProgramCache]: Analyzing trace with hash -932265802, 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 14:06:26,192 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:06:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:06:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:06:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 11256 backedges. 0 proven. 11256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:06:27,419 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:06:27,419 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-04-13 14:06:27,419 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:06:27,420 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 14:06:27,420 INFO L182 omatonBuilderFactory]: Interpolants [72193#(= main_~i~0 43), 72192#(= main_~i~0 42), 72195#(= main_~i~0 45), 72194#(= main_~i~0 44), 72197#(= main_~i~0 47), 72196#(= main_~i~0 46), 72199#(= main_~i~0 49), 72198#(= main_~i~0 48), 72201#(= main_~i~0 51), 72200#(= main_~i~0 50), 72203#(= main_~i~0 53), 72202#(= main_~i~0 52), 72205#(= main_~i~0 55), 72204#(= main_~i~0 54), 72207#(= main_~i~0 57), 72206#(= main_~i~0 56), 72209#(= main_~i~0 59), 72208#(= main_~i~0 58), 72211#(= main_~i~0 61), 72210#(= main_~i~0 60), 72213#(= main_~i~0 63), 72212#(= main_~i~0 62), 72215#(= main_~i~0 65), 72214#(= main_~i~0 64), 72217#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 72216#(= main_~i~0 66), 72147#false, 72146#true, 72151#(= main_~i~0 1), 72150#(= 0 main_~i~0), 72153#(= main_~i~0 3), 72152#(= 2 main_~i~0), 72155#(= main_~i~0 5), 72154#(= main_~i~0 4), 72157#(= main_~i~0 7), 72156#(= main_~i~0 6), 72159#(= main_~i~0 9), 72158#(= main_~i~0 8), 72161#(= main_~i~0 11), 72160#(= main_~i~0 10), 72163#(= main_~i~0 13), 72162#(= main_~i~0 12), 72165#(= main_~i~0 15), 72164#(= main_~i~0 14), 72167#(= main_~i~0 17), 72166#(= main_~i~0 16), 72169#(= main_~i~0 19), 72168#(= main_~i~0 18), 72171#(= main_~i~0 21), 72170#(= main_~i~0 20), 72173#(= main_~i~0 23), 72172#(= main_~i~0 22), 72175#(= main_~i~0 25), 72174#(= main_~i~0 24), 72177#(= main_~i~0 27), 72176#(= main_~i~0 26), 72179#(= main_~i~0 29), 72178#(= main_~i~0 28), 72181#(= main_~i~0 31), 72180#(= main_~i~0 30), 72183#(= main_~i~0 33), 72182#(= main_~i~0 32), 72185#(= main_~i~0 35), 72184#(= main_~i~0 34), 72187#(= main_~i~0 37), 72186#(= main_~i~0 36), 72189#(= main_~i~0 39), 72188#(= main_~i~0 38), 72191#(= main_~i~0 41), 72190#(= main_~i~0 40)] [2018-04-13 14:06:27,420 INFO L134 CoverageAnalysis]: Checked inductivity of 11256 backedges. 0 proven. 11256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:06:27,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-04-13 14:06:27,420 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-04-13 14:06:27,420 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=4626, Unknown=0, NotChecked=0, Total=4830 [2018-04-13 14:06:27,420 INFO L87 Difference]: Start difference. First operand 964 states and 1299 transitions. Second operand 70 states. [2018-04-13 14:06:41,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:06:41,886 INFO L93 Difference]: Finished difference Result 1046 states and 1386 transitions. [2018-04-13 14:06:41,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-04-13 14:06:41,886 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 343 [2018-04-13 14:06:41,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:06:41,887 INFO L225 Difference]: With dead ends: 1046 [2018-04-13 14:06:41,887 INFO L226 Difference]: Without dead ends: 1046 [2018-04-13 14:06:41,888 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 14:06:41,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2018-04-13 14:06:41,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 978. [2018-04-13 14:06:41,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2018-04-13 14:06:41,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1318 transitions. [2018-04-13 14:06:41,901 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1318 transitions. Word has length 343 [2018-04-13 14:06:41,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:06:41,902 INFO L459 AbstractCegarLoop]: Abstraction has 978 states and 1318 transitions. [2018-04-13 14:06:41,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-04-13 14:06:41,902 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1318 transitions. [2018-04-13 14:06:41,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-04-13 14:06:41,904 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:06:41,905 INFO L355 BasicCegarLoop]: trace histogram [69, 69, 68, 68, 68, 1, 1, 1, 1, 1, 1] [2018-04-13 14:06:41,905 INFO L408 AbstractCegarLoop]: === Iteration 69 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:06:41,905 INFO L82 PathProgramCache]: Analyzing trace with hash 689766397, 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 14:06:41,913 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:06:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:06:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:06:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:06:43,056 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:06:43,056 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2018-04-13 14:06:43,056 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:06:43,057 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 14:06:43,057 INFO L182 omatonBuilderFactory]: Interpolants [74243#false, 74242#true, 74247#(= main_~i~0 1), 74246#(= 0 main_~i~0), 74249#(= main_~i~0 3), 74248#(= 2 main_~i~0), 74251#(= main_~i~0 5), 74250#(= main_~i~0 4), 74253#(= main_~i~0 7), 74252#(= main_~i~0 6), 74255#(= main_~i~0 9), 74254#(= main_~i~0 8), 74257#(= main_~i~0 11), 74256#(= main_~i~0 10), 74259#(= main_~i~0 13), 74258#(= main_~i~0 12), 74261#(= main_~i~0 15), 74260#(= main_~i~0 14), 74263#(= main_~i~0 17), 74262#(= main_~i~0 16), 74265#(= main_~i~0 19), 74264#(= main_~i~0 18), 74267#(= main_~i~0 21), 74266#(= main_~i~0 20), 74269#(= main_~i~0 23), 74268#(= main_~i~0 22), 74271#(= main_~i~0 25), 74270#(= main_~i~0 24), 74273#(= main_~i~0 27), 74272#(= main_~i~0 26), 74275#(= main_~i~0 29), 74274#(= main_~i~0 28), 74277#(= main_~i~0 31), 74276#(= main_~i~0 30), 74279#(= main_~i~0 33), 74278#(= main_~i~0 32), 74281#(= main_~i~0 35), 74280#(= main_~i~0 34), 74283#(= main_~i~0 37), 74282#(= main_~i~0 36), 74285#(= main_~i~0 39), 74284#(= main_~i~0 38), 74287#(= main_~i~0 41), 74286#(= main_~i~0 40), 74289#(= main_~i~0 43), 74288#(= main_~i~0 42), 74291#(= main_~i~0 45), 74290#(= main_~i~0 44), 74293#(= main_~i~0 47), 74292#(= main_~i~0 46), 74295#(= main_~i~0 49), 74294#(= main_~i~0 48), 74297#(= main_~i~0 51), 74296#(= main_~i~0 50), 74299#(= main_~i~0 53), 74298#(= main_~i~0 52), 74301#(= main_~i~0 55), 74300#(= main_~i~0 54), 74303#(= main_~i~0 57), 74302#(= main_~i~0 56), 74305#(= main_~i~0 59), 74304#(= main_~i~0 58), 74307#(= main_~i~0 61), 74306#(= main_~i~0 60), 74309#(= main_~i~0 63), 74308#(= main_~i~0 62), 74311#(= main_~i~0 65), 74310#(= main_~i~0 64), 74313#(= main_~i~0 67), 74312#(= main_~i~0 66), 74314#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:06:43,057 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:06:43,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-04-13 14:06:43,057 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-04-13 14:06:43,057 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=4763, Unknown=0, NotChecked=0, Total=4970 [2018-04-13 14:06:43,058 INFO L87 Difference]: Start difference. First operand 978 states and 1318 transitions. Second operand 71 states. [2018-04-13 14:06:58,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:06:58,016 INFO L93 Difference]: Finished difference Result 1061 states and 1406 transitions. [2018-04-13 14:06:58,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-04-13 14:06:58,016 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 348 [2018-04-13 14:06:58,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:06:58,017 INFO L225 Difference]: With dead ends: 1061 [2018-04-13 14:06:58,017 INFO L226 Difference]: Without dead ends: 1061 [2018-04-13 14:06:58,018 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=207, Invalid=4763, Unknown=0, NotChecked=0, Total=4970 [2018-04-13 14:06:58,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2018-04-13 14:06:58,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 992. [2018-04-13 14:06:58,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2018-04-13 14:06:58,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1337 transitions. [2018-04-13 14:06:58,023 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1337 transitions. Word has length 348 [2018-04-13 14:06:58,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:06:58,023 INFO L459 AbstractCegarLoop]: Abstraction has 992 states and 1337 transitions. [2018-04-13 14:06:58,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-04-13 14:06:58,023 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1337 transitions. [2018-04-13 14:06:58,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-04-13 14:06:58,024 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:06:58,024 INFO L355 BasicCegarLoop]: trace histogram [70, 70, 69, 69, 69, 1, 1, 1, 1, 1, 1] [2018-04-13 14:06:58,025 INFO L408 AbstractCegarLoop]: === Iteration 70 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:06:58,025 INFO L82 PathProgramCache]: Analyzing trace with hash -5884650, 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 14:06:58,027 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:06:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:06:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:06:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 11937 backedges. 0 proven. 11937 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:06:59,217 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:06:59,217 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2018-04-13 14:06:59,217 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:06:59,217 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 14:06:59,218 INFO L182 omatonBuilderFactory]: Interpolants [76417#(= main_~i~0 45), 76416#(= main_~i~0 44), 76419#(= main_~i~0 47), 76418#(= main_~i~0 46), 76421#(= main_~i~0 49), 76420#(= main_~i~0 48), 76423#(= main_~i~0 51), 76422#(= main_~i~0 50), 76425#(= main_~i~0 53), 76424#(= main_~i~0 52), 76427#(= main_~i~0 55), 76426#(= main_~i~0 54), 76429#(= main_~i~0 57), 76428#(= main_~i~0 56), 76431#(= main_~i~0 59), 76430#(= main_~i~0 58), 76433#(= main_~i~0 61), 76432#(= main_~i~0 60), 76435#(= main_~i~0 63), 76434#(= main_~i~0 62), 76437#(= main_~i~0 65), 76436#(= main_~i~0 64), 76439#(= main_~i~0 67), 76438#(= main_~i~0 66), 76441#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 76440#(= main_~i~0 68), 76369#false, 76368#true, 76373#(= main_~i~0 1), 76372#(= 0 main_~i~0), 76375#(= main_~i~0 3), 76374#(= 2 main_~i~0), 76377#(= main_~i~0 5), 76376#(= main_~i~0 4), 76379#(= main_~i~0 7), 76378#(= main_~i~0 6), 76381#(= main_~i~0 9), 76380#(= main_~i~0 8), 76383#(= main_~i~0 11), 76382#(= main_~i~0 10), 76385#(= main_~i~0 13), 76384#(= main_~i~0 12), 76387#(= main_~i~0 15), 76386#(= main_~i~0 14), 76389#(= main_~i~0 17), 76388#(= main_~i~0 16), 76391#(= main_~i~0 19), 76390#(= main_~i~0 18), 76393#(= main_~i~0 21), 76392#(= main_~i~0 20), 76395#(= main_~i~0 23), 76394#(= main_~i~0 22), 76397#(= main_~i~0 25), 76396#(= main_~i~0 24), 76399#(= main_~i~0 27), 76398#(= main_~i~0 26), 76401#(= main_~i~0 29), 76400#(= main_~i~0 28), 76403#(= main_~i~0 31), 76402#(= main_~i~0 30), 76405#(= main_~i~0 33), 76404#(= main_~i~0 32), 76407#(= main_~i~0 35), 76406#(= main_~i~0 34), 76409#(= main_~i~0 37), 76408#(= main_~i~0 36), 76411#(= main_~i~0 39), 76410#(= main_~i~0 38), 76413#(= main_~i~0 41), 76412#(= main_~i~0 40), 76415#(= main_~i~0 43), 76414#(= main_~i~0 42)] [2018-04-13 14:06:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 11937 backedges. 0 proven. 11937 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:06:59,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-04-13 14:06:59,218 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-04-13 14:06:59,218 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=4902, Unknown=0, NotChecked=0, Total=5112 [2018-04-13 14:06:59,219 INFO L87 Difference]: Start difference. First operand 992 states and 1337 transitions. Second operand 72 states. [2018-04-13 14:07:15,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:07:15,051 INFO L93 Difference]: Finished difference Result 1076 states and 1426 transitions. [2018-04-13 14:07:15,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-04-13 14:07:15,051 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 353 [2018-04-13 14:07:15,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:07:15,052 INFO L225 Difference]: With dead ends: 1076 [2018-04-13 14:07:15,052 INFO L226 Difference]: Without dead ends: 1076 [2018-04-13 14:07:15,053 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=210, Invalid=4902, Unknown=0, NotChecked=0, Total=5112 [2018-04-13 14:07:15,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2018-04-13 14:07:15,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1006. [2018-04-13 14:07:15,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2018-04-13 14:07:15,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1356 transitions. [2018-04-13 14:07:15,060 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1356 transitions. Word has length 353 [2018-04-13 14:07:15,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:07:15,061 INFO L459 AbstractCegarLoop]: Abstraction has 1006 states and 1356 transitions. [2018-04-13 14:07:15,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-04-13 14:07:15,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1356 transitions. [2018-04-13 14:07:15,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-04-13 14:07:15,063 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:07:15,064 INFO L355 BasicCegarLoop]: trace histogram [71, 71, 70, 70, 70, 1, 1, 1, 1, 1, 1] [2018-04-13 14:07:15,064 INFO L408 AbstractCegarLoop]: === Iteration 71 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:07:15,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1916749725, 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 14:07:15,066 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:07:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:07:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:07:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 12285 backedges. 0 proven. 12285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:07:16,330 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:07:16,330 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2018-04-13 14:07:16,330 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:07:16,330 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 14:07:16,330 INFO L182 omatonBuilderFactory]: Interpolants [78593#(= main_~i~0 65), 78592#(= main_~i~0 64), 78595#(= main_~i~0 67), 78594#(= main_~i~0 66), 78597#(= main_~i~0 69), 78596#(= main_~i~0 68), 78598#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 78525#false, 78524#true, 78529#(= main_~i~0 1), 78528#(= 0 main_~i~0), 78531#(= main_~i~0 3), 78530#(= 2 main_~i~0), 78533#(= main_~i~0 5), 78532#(= main_~i~0 4), 78535#(= main_~i~0 7), 78534#(= main_~i~0 6), 78537#(= main_~i~0 9), 78536#(= main_~i~0 8), 78539#(= main_~i~0 11), 78538#(= main_~i~0 10), 78541#(= main_~i~0 13), 78540#(= main_~i~0 12), 78543#(= main_~i~0 15), 78542#(= main_~i~0 14), 78545#(= main_~i~0 17), 78544#(= main_~i~0 16), 78547#(= main_~i~0 19), 78546#(= main_~i~0 18), 78549#(= main_~i~0 21), 78548#(= main_~i~0 20), 78551#(= main_~i~0 23), 78550#(= main_~i~0 22), 78553#(= main_~i~0 25), 78552#(= main_~i~0 24), 78555#(= main_~i~0 27), 78554#(= main_~i~0 26), 78557#(= main_~i~0 29), 78556#(= main_~i~0 28), 78559#(= main_~i~0 31), 78558#(= main_~i~0 30), 78561#(= main_~i~0 33), 78560#(= main_~i~0 32), 78563#(= main_~i~0 35), 78562#(= main_~i~0 34), 78565#(= main_~i~0 37), 78564#(= main_~i~0 36), 78567#(= main_~i~0 39), 78566#(= main_~i~0 38), 78569#(= main_~i~0 41), 78568#(= main_~i~0 40), 78571#(= main_~i~0 43), 78570#(= main_~i~0 42), 78573#(= main_~i~0 45), 78572#(= main_~i~0 44), 78575#(= main_~i~0 47), 78574#(= main_~i~0 46), 78577#(= main_~i~0 49), 78576#(= main_~i~0 48), 78579#(= main_~i~0 51), 78578#(= main_~i~0 50), 78581#(= main_~i~0 53), 78580#(= main_~i~0 52), 78583#(= main_~i~0 55), 78582#(= main_~i~0 54), 78585#(= main_~i~0 57), 78584#(= main_~i~0 56), 78587#(= main_~i~0 59), 78586#(= main_~i~0 58), 78589#(= main_~i~0 61), 78588#(= main_~i~0 60), 78591#(= main_~i~0 63), 78590#(= main_~i~0 62)] [2018-04-13 14:07:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 12285 backedges. 0 proven. 12285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:07:16,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-04-13 14:07:16,331 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-04-13 14:07:16,331 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=5043, Unknown=0, NotChecked=0, Total=5256 [2018-04-13 14:07:16,331 INFO L87 Difference]: Start difference. First operand 1006 states and 1356 transitions. Second operand 73 states. [2018-04-13 14:07:32,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:07:32,330 INFO L93 Difference]: Finished difference Result 1091 states and 1446 transitions. [2018-04-13 14:07:32,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-04-13 14:07:32,331 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 358 [2018-04-13 14:07:32,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:07:32,332 INFO L225 Difference]: With dead ends: 1091 [2018-04-13 14:07:32,332 INFO L226 Difference]: Without dead ends: 1091 [2018-04-13 14:07:32,332 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=213, Invalid=5043, Unknown=0, NotChecked=0, Total=5256 [2018-04-13 14:07:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2018-04-13 14:07:32,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1020. [2018-04-13 14:07:32,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1020 states. [2018-04-13 14:07:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1375 transitions. [2018-04-13 14:07:32,338 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1375 transitions. Word has length 358 [2018-04-13 14:07:32,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:07:32,338 INFO L459 AbstractCegarLoop]: Abstraction has 1020 states and 1375 transitions. [2018-04-13 14:07:32,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-04-13 14:07:32,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1375 transitions. [2018-04-13 14:07:32,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2018-04-13 14:07:32,340 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:07:32,341 INFO L355 BasicCegarLoop]: trace histogram [72, 72, 71, 71, 71, 1, 1, 1, 1, 1, 1] [2018-04-13 14:07:32,341 INFO L408 AbstractCegarLoop]: === Iteration 72 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:07:32,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1423946102, 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 14:07:32,343 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:07:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:07:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:07:33,591 INFO L134 CoverageAnalysis]: Checked inductivity of 12638 backedges. 0 proven. 12638 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:07:33,608 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:07:33,609 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-04-13 14:07:33,609 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:07:33,609 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 14:07:33,609 INFO L182 omatonBuilderFactory]: Interpolants [80769#(= main_~i~0 55), 80768#(= main_~i~0 54), 80771#(= main_~i~0 57), 80770#(= main_~i~0 56), 80773#(= main_~i~0 59), 80772#(= main_~i~0 58), 80775#(= main_~i~0 61), 80774#(= main_~i~0 60), 80777#(= main_~i~0 63), 80776#(= main_~i~0 62), 80779#(= main_~i~0 65), 80778#(= main_~i~0 64), 80781#(= main_~i~0 67), 80780#(= main_~i~0 66), 80783#(= main_~i~0 69), 80782#(= main_~i~0 68), 80785#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 80784#(= main_~i~0 70), 80711#false, 80710#true, 80715#(= main_~i~0 1), 80714#(= 0 main_~i~0), 80717#(= main_~i~0 3), 80716#(= 2 main_~i~0), 80719#(= main_~i~0 5), 80718#(= main_~i~0 4), 80721#(= main_~i~0 7), 80720#(= main_~i~0 6), 80723#(= main_~i~0 9), 80722#(= main_~i~0 8), 80725#(= main_~i~0 11), 80724#(= main_~i~0 10), 80727#(= main_~i~0 13), 80726#(= main_~i~0 12), 80729#(= main_~i~0 15), 80728#(= main_~i~0 14), 80731#(= main_~i~0 17), 80730#(= main_~i~0 16), 80733#(= main_~i~0 19), 80732#(= main_~i~0 18), 80735#(= main_~i~0 21), 80734#(= main_~i~0 20), 80737#(= main_~i~0 23), 80736#(= main_~i~0 22), 80739#(= main_~i~0 25), 80738#(= main_~i~0 24), 80741#(= main_~i~0 27), 80740#(= main_~i~0 26), 80743#(= main_~i~0 29), 80742#(= main_~i~0 28), 80745#(= main_~i~0 31), 80744#(= main_~i~0 30), 80747#(= main_~i~0 33), 80746#(= main_~i~0 32), 80749#(= main_~i~0 35), 80748#(= main_~i~0 34), 80751#(= main_~i~0 37), 80750#(= main_~i~0 36), 80753#(= main_~i~0 39), 80752#(= main_~i~0 38), 80755#(= main_~i~0 41), 80754#(= main_~i~0 40), 80757#(= main_~i~0 43), 80756#(= main_~i~0 42), 80759#(= main_~i~0 45), 80758#(= main_~i~0 44), 80761#(= main_~i~0 47), 80760#(= main_~i~0 46), 80763#(= main_~i~0 49), 80762#(= main_~i~0 48), 80765#(= main_~i~0 51), 80764#(= main_~i~0 50), 80767#(= main_~i~0 53), 80766#(= main_~i~0 52)] [2018-04-13 14:07:33,609 INFO L134 CoverageAnalysis]: Checked inductivity of 12638 backedges. 0 proven. 12638 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:07:33,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-04-13 14:07:33,610 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-04-13 14:07:33,610 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=5186, Unknown=0, NotChecked=0, Total=5402 [2018-04-13 14:07:33,610 INFO L87 Difference]: Start difference. First operand 1020 states and 1375 transitions. Second operand 74 states. [2018-04-13 14:07:49,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:07:49,971 INFO L93 Difference]: Finished difference Result 1106 states and 1466 transitions. [2018-04-13 14:07:49,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-04-13 14:07:49,971 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 363 [2018-04-13 14:07:49,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:07:49,972 INFO L225 Difference]: With dead ends: 1106 [2018-04-13 14:07:49,972 INFO L226 Difference]: Without dead ends: 1106 [2018-04-13 14:07:49,973 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=216, Invalid=5186, Unknown=0, NotChecked=0, Total=5402 [2018-04-13 14:07:49,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-04-13 14:07:49,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1034. [2018-04-13 14:07:49,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-04-13 14:07:49,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1394 transitions. [2018-04-13 14:07:49,982 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1394 transitions. Word has length 363 [2018-04-13 14:07:49,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:07:49,982 INFO L459 AbstractCegarLoop]: Abstraction has 1034 states and 1394 transitions. [2018-04-13 14:07:49,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-04-13 14:07:49,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1394 transitions. [2018-04-13 14:07:49,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-04-13 14:07:49,992 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:07:49,992 INFO L355 BasicCegarLoop]: trace histogram [73, 73, 72, 72, 72, 1, 1, 1, 1, 1, 1] [2018-04-13 14:07:49,992 INFO L408 AbstractCegarLoop]: === Iteration 73 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:07:49,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1251702979, 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 14:07:49,994 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:07:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:07:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:07:51,280 INFO L134 CoverageAnalysis]: Checked inductivity of 12996 backedges. 0 proven. 12996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:07:51,297 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:07:51,297 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2018-04-13 14:07:51,297 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:07:51,297 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 14:07:51,297 INFO L182 omatonBuilderFactory]: Interpolants [82945#(= main_~i~0 15), 82944#(= main_~i~0 14), 82947#(= main_~i~0 17), 82946#(= main_~i~0 16), 82949#(= main_~i~0 19), 82948#(= main_~i~0 18), 82951#(= main_~i~0 21), 82950#(= main_~i~0 20), 82953#(= main_~i~0 23), 82952#(= main_~i~0 22), 82955#(= main_~i~0 25), 82954#(= main_~i~0 24), 82957#(= main_~i~0 27), 82956#(= main_~i~0 26), 82959#(= main_~i~0 29), 82958#(= main_~i~0 28), 82961#(= main_~i~0 31), 82960#(= main_~i~0 30), 82963#(= main_~i~0 33), 82962#(= main_~i~0 32), 82965#(= main_~i~0 35), 82964#(= main_~i~0 34), 82967#(= main_~i~0 37), 82966#(= main_~i~0 36), 82969#(= main_~i~0 39), 82968#(= main_~i~0 38), 82971#(= main_~i~0 41), 82970#(= main_~i~0 40), 82973#(= main_~i~0 43), 82972#(= main_~i~0 42), 82975#(= main_~i~0 45), 82974#(= main_~i~0 44), 82977#(= main_~i~0 47), 82976#(= main_~i~0 46), 82979#(= main_~i~0 49), 82978#(= main_~i~0 48), 82981#(= main_~i~0 51), 82980#(= main_~i~0 50), 82983#(= main_~i~0 53), 82982#(= main_~i~0 52), 82985#(= main_~i~0 55), 82984#(= main_~i~0 54), 82987#(= main_~i~0 57), 82986#(= main_~i~0 56), 82989#(= main_~i~0 59), 82988#(= main_~i~0 58), 82991#(= main_~i~0 61), 82990#(= main_~i~0 60), 82993#(= main_~i~0 63), 82992#(= main_~i~0 62), 82995#(= main_~i~0 65), 82994#(= main_~i~0 64), 82997#(= main_~i~0 67), 82996#(= main_~i~0 66), 82999#(= main_~i~0 69), 82998#(= main_~i~0 68), 83001#(= main_~i~0 71), 83000#(= main_~i~0 70), 83002#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 82927#false, 82926#true, 82931#(= main_~i~0 1), 82930#(= 0 main_~i~0), 82933#(= main_~i~0 3), 82932#(= 2 main_~i~0), 82935#(= main_~i~0 5), 82934#(= main_~i~0 4), 82937#(= main_~i~0 7), 82936#(= main_~i~0 6), 82939#(= main_~i~0 9), 82938#(= main_~i~0 8), 82941#(= main_~i~0 11), 82940#(= main_~i~0 10), 82943#(= main_~i~0 13), 82942#(= main_~i~0 12)] [2018-04-13 14:07:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 12996 backedges. 0 proven. 12996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:07:51,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 75 states [2018-04-13 14:07:51,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2018-04-13 14:07:51,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=5331, Unknown=0, NotChecked=0, Total=5550 [2018-04-13 14:07:51,298 INFO L87 Difference]: Start difference. First operand 1034 states and 1394 transitions. Second operand 75 states. [2018-04-13 14:08:08,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:08:08,237 INFO L93 Difference]: Finished difference Result 1121 states and 1486 transitions. [2018-04-13 14:08:08,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-04-13 14:08:08,238 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 368 [2018-04-13 14:08:08,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:08:08,239 INFO L225 Difference]: With dead ends: 1121 [2018-04-13 14:08:08,239 INFO L226 Difference]: Without dead ends: 1121 [2018-04-13 14:08:08,239 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=219, Invalid=5331, Unknown=0, NotChecked=0, Total=5550 [2018-04-13 14:08:08,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2018-04-13 14:08:08,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1048. [2018-04-13 14:08:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2018-04-13 14:08:08,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1413 transitions. [2018-04-13 14:08:08,245 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1413 transitions. Word has length 368 [2018-04-13 14:08:08,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:08:08,245 INFO L459 AbstractCegarLoop]: Abstraction has 1048 states and 1413 transitions. [2018-04-13 14:08:08,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 75 states. [2018-04-13 14:08:08,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1413 transitions. [2018-04-13 14:08:08,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2018-04-13 14:08:08,247 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:08:08,247 INFO L355 BasicCegarLoop]: trace histogram [74, 74, 73, 73, 73, 1, 1, 1, 1, 1, 1] [2018-04-13 14:08:08,247 INFO L408 AbstractCegarLoop]: === Iteration 74 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:08:08,248 INFO L82 PathProgramCache]: Analyzing trace with hash -751749674, 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 14:08:08,250 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:08:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:08:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:08:09,547 INFO L134 CoverageAnalysis]: Checked inductivity of 13359 backedges. 0 proven. 13359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:08:09,564 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:08:09,564 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2018-04-13 14:08:09,564 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:08:09,565 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 14:08:09,565 INFO L182 omatonBuilderFactory]: Interpolants [85249#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 85248#(= main_~i~0 72), 85173#false, 85172#true, 85177#(= main_~i~0 1), 85176#(= 0 main_~i~0), 85179#(= main_~i~0 3), 85178#(= 2 main_~i~0), 85181#(= main_~i~0 5), 85180#(= main_~i~0 4), 85183#(= main_~i~0 7), 85182#(= main_~i~0 6), 85185#(= main_~i~0 9), 85184#(= main_~i~0 8), 85187#(= main_~i~0 11), 85186#(= main_~i~0 10), 85189#(= main_~i~0 13), 85188#(= main_~i~0 12), 85191#(= main_~i~0 15), 85190#(= main_~i~0 14), 85193#(= main_~i~0 17), 85192#(= main_~i~0 16), 85195#(= main_~i~0 19), 85194#(= main_~i~0 18), 85197#(= main_~i~0 21), 85196#(= main_~i~0 20), 85199#(= main_~i~0 23), 85198#(= main_~i~0 22), 85201#(= main_~i~0 25), 85200#(= main_~i~0 24), 85203#(= main_~i~0 27), 85202#(= main_~i~0 26), 85205#(= main_~i~0 29), 85204#(= main_~i~0 28), 85207#(= main_~i~0 31), 85206#(= main_~i~0 30), 85209#(= main_~i~0 33), 85208#(= main_~i~0 32), 85211#(= main_~i~0 35), 85210#(= main_~i~0 34), 85213#(= main_~i~0 37), 85212#(= main_~i~0 36), 85215#(= main_~i~0 39), 85214#(= main_~i~0 38), 85217#(= main_~i~0 41), 85216#(= main_~i~0 40), 85219#(= main_~i~0 43), 85218#(= main_~i~0 42), 85221#(= main_~i~0 45), 85220#(= main_~i~0 44), 85223#(= main_~i~0 47), 85222#(= main_~i~0 46), 85225#(= main_~i~0 49), 85224#(= main_~i~0 48), 85227#(= main_~i~0 51), 85226#(= main_~i~0 50), 85229#(= main_~i~0 53), 85228#(= main_~i~0 52), 85231#(= main_~i~0 55), 85230#(= main_~i~0 54), 85233#(= main_~i~0 57), 85232#(= main_~i~0 56), 85235#(= main_~i~0 59), 85234#(= main_~i~0 58), 85237#(= main_~i~0 61), 85236#(= main_~i~0 60), 85239#(= main_~i~0 63), 85238#(= main_~i~0 62), 85241#(= main_~i~0 65), 85240#(= main_~i~0 64), 85243#(= main_~i~0 67), 85242#(= main_~i~0 66), 85245#(= main_~i~0 69), 85244#(= main_~i~0 68), 85247#(= main_~i~0 71), 85246#(= main_~i~0 70)] [2018-04-13 14:08:09,565 INFO L134 CoverageAnalysis]: Checked inductivity of 13359 backedges. 0 proven. 13359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:08:09,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-04-13 14:08:09,566 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-04-13 14:08:09,566 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=5478, Unknown=0, NotChecked=0, Total=5700 [2018-04-13 14:08:09,566 INFO L87 Difference]: Start difference. First operand 1048 states and 1413 transitions. Second operand 76 states. [2018-04-13 14:08:26,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:08:26,830 INFO L93 Difference]: Finished difference Result 1136 states and 1506 transitions. [2018-04-13 14:08:26,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-04-13 14:08:26,830 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 373 [2018-04-13 14:08:26,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:08:26,831 INFO L225 Difference]: With dead ends: 1136 [2018-04-13 14:08:26,831 INFO L226 Difference]: Without dead ends: 1136 [2018-04-13 14:08:26,831 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=222, Invalid=5478, Unknown=0, NotChecked=0, Total=5700 [2018-04-13 14:08:26,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2018-04-13 14:08:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1062. [2018-04-13 14:08:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2018-04-13 14:08:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1432 transitions. [2018-04-13 14:08:26,839 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1432 transitions. Word has length 373 [2018-04-13 14:08:26,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:08:26,840 INFO L459 AbstractCegarLoop]: Abstraction has 1062 states and 1432 transitions. [2018-04-13 14:08:26,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-04-13 14:08:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1432 transitions. [2018-04-13 14:08:26,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2018-04-13 14:08:26,842 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:08:26,842 INFO L355 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 74, 1, 1, 1, 1, 1, 1] [2018-04-13 14:08:26,842 INFO L408 AbstractCegarLoop]: === Iteration 75 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:08:26,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1698086621, 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 14:08:26,844 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:08:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:08:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:08:28,147 INFO L134 CoverageAnalysis]: Checked inductivity of 13727 backedges. 0 proven. 13727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:08:28,163 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:08:28,164 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2018-04-13 14:08:28,164 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:08:28,164 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 14:08:28,164 INFO L182 omatonBuilderFactory]: Interpolants [87449#false, 87448#true, 87453#(= main_~i~0 1), 87452#(= 0 main_~i~0), 87455#(= main_~i~0 3), 87454#(= 2 main_~i~0), 87457#(= main_~i~0 5), 87456#(= main_~i~0 4), 87459#(= main_~i~0 7), 87458#(= main_~i~0 6), 87461#(= main_~i~0 9), 87460#(= main_~i~0 8), 87463#(= main_~i~0 11), 87462#(= main_~i~0 10), 87465#(= main_~i~0 13), 87464#(= main_~i~0 12), 87467#(= main_~i~0 15), 87466#(= main_~i~0 14), 87469#(= main_~i~0 17), 87468#(= main_~i~0 16), 87471#(= main_~i~0 19), 87470#(= main_~i~0 18), 87473#(= main_~i~0 21), 87472#(= main_~i~0 20), 87475#(= main_~i~0 23), 87474#(= main_~i~0 22), 87477#(= main_~i~0 25), 87476#(= main_~i~0 24), 87479#(= main_~i~0 27), 87478#(= main_~i~0 26), 87481#(= main_~i~0 29), 87480#(= main_~i~0 28), 87483#(= main_~i~0 31), 87482#(= main_~i~0 30), 87485#(= main_~i~0 33), 87484#(= main_~i~0 32), 87487#(= main_~i~0 35), 87486#(= main_~i~0 34), 87489#(= main_~i~0 37), 87488#(= main_~i~0 36), 87491#(= main_~i~0 39), 87490#(= main_~i~0 38), 87493#(= main_~i~0 41), 87492#(= main_~i~0 40), 87495#(= main_~i~0 43), 87494#(= main_~i~0 42), 87497#(= main_~i~0 45), 87496#(= main_~i~0 44), 87499#(= main_~i~0 47), 87498#(= main_~i~0 46), 87501#(= main_~i~0 49), 87500#(= main_~i~0 48), 87503#(= main_~i~0 51), 87502#(= main_~i~0 50), 87505#(= main_~i~0 53), 87504#(= main_~i~0 52), 87507#(= main_~i~0 55), 87506#(= main_~i~0 54), 87509#(= main_~i~0 57), 87508#(= main_~i~0 56), 87511#(= main_~i~0 59), 87510#(= main_~i~0 58), 87513#(= main_~i~0 61), 87512#(= main_~i~0 60), 87515#(= main_~i~0 63), 87514#(= main_~i~0 62), 87517#(= main_~i~0 65), 87516#(= main_~i~0 64), 87519#(= main_~i~0 67), 87518#(= main_~i~0 66), 87521#(= main_~i~0 69), 87520#(= main_~i~0 68), 87523#(= main_~i~0 71), 87522#(= main_~i~0 70), 87525#(= main_~i~0 73), 87524#(= main_~i~0 72), 87526#(and (< main_~i~0 100000) (<= 0 main_~i~0))] [2018-04-13 14:08:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 13727 backedges. 0 proven. 13727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:08:28,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-04-13 14:08:28,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-04-13 14:08:28,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=5627, Unknown=0, NotChecked=0, Total=5852 [2018-04-13 14:08:28,165 INFO L87 Difference]: Start difference. First operand 1062 states and 1432 transitions. Second operand 77 states. [2018-04-13 14:08:46,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:08:46,017 INFO L93 Difference]: Finished difference Result 1151 states and 1526 transitions. [2018-04-13 14:08:46,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-04-13 14:08:46,018 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 378 [2018-04-13 14:08:46,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:08:46,019 INFO L225 Difference]: With dead ends: 1151 [2018-04-13 14:08:46,019 INFO L226 Difference]: Without dead ends: 1151 [2018-04-13 14:08:46,019 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 14:08:46,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2018-04-13 14:08:46,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1076. [2018-04-13 14:08:46,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1076 states. [2018-04-13 14:08:46,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1451 transitions. [2018-04-13 14:08:46,024 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1451 transitions. Word has length 378 [2018-04-13 14:08:46,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:08:46,025 INFO L459 AbstractCegarLoop]: Abstraction has 1076 states and 1451 transitions. [2018-04-13 14:08:46,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-04-13 14:08:46,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1451 transitions. [2018-04-13 14:08:46,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2018-04-13 14:08:46,026 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:08:46,026 INFO L355 BasicCegarLoop]: trace histogram [76, 76, 75, 75, 75, 1, 1, 1, 1, 1, 1] [2018-04-13 14:08:46,026 INFO L408 AbstractCegarLoop]: === Iteration 76 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:08:46,027 INFO L82 PathProgramCache]: Analyzing trace with hash 573620790, 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 14:08:46,029 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:08:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:08:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:08:47,337 INFO L134 CoverageAnalysis]: Checked inductivity of 14100 backedges. 0 proven. 14100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:08:47,352 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:08:47,352 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2018-04-13 14:08:47,352 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:08:47,353 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 14:08:47,353 INFO L182 omatonBuilderFactory]: Interpolants [89755#false, 89754#true, 89759#(= main_~i~0 1), 89758#(= 0 main_~i~0), 89761#(= main_~i~0 3), 89760#(= 2 main_~i~0), 89763#(= main_~i~0 5), 89762#(= main_~i~0 4), 89765#(= main_~i~0 7), 89764#(= main_~i~0 6), 89767#(= main_~i~0 9), 89766#(= main_~i~0 8), 89769#(= main_~i~0 11), 89768#(= main_~i~0 10), 89771#(= main_~i~0 13), 89770#(= main_~i~0 12), 89773#(= main_~i~0 15), 89772#(= main_~i~0 14), 89775#(= main_~i~0 17), 89774#(= main_~i~0 16), 89777#(= main_~i~0 19), 89776#(= main_~i~0 18), 89779#(= main_~i~0 21), 89778#(= main_~i~0 20), 89781#(= main_~i~0 23), 89780#(= main_~i~0 22), 89783#(= main_~i~0 25), 89782#(= main_~i~0 24), 89785#(= main_~i~0 27), 89784#(= main_~i~0 26), 89787#(= main_~i~0 29), 89786#(= main_~i~0 28), 89789#(= main_~i~0 31), 89788#(= main_~i~0 30), 89791#(= main_~i~0 33), 89790#(= main_~i~0 32), 89793#(= main_~i~0 35), 89792#(= main_~i~0 34), 89795#(= main_~i~0 37), 89794#(= main_~i~0 36), 89797#(= main_~i~0 39), 89796#(= main_~i~0 38), 89799#(= main_~i~0 41), 89798#(= main_~i~0 40), 89801#(= main_~i~0 43), 89800#(= main_~i~0 42), 89803#(= main_~i~0 45), 89802#(= main_~i~0 44), 89805#(= main_~i~0 47), 89804#(= main_~i~0 46), 89807#(= main_~i~0 49), 89806#(= main_~i~0 48), 89809#(= main_~i~0 51), 89808#(= main_~i~0 50), 89811#(= main_~i~0 53), 89810#(= main_~i~0 52), 89813#(= main_~i~0 55), 89812#(= main_~i~0 54), 89815#(= main_~i~0 57), 89814#(= main_~i~0 56), 89817#(= main_~i~0 59), 89816#(= main_~i~0 58), 89819#(= main_~i~0 61), 89818#(= main_~i~0 60), 89821#(= main_~i~0 63), 89820#(= main_~i~0 62), 89823#(= main_~i~0 65), 89822#(= main_~i~0 64), 89825#(= main_~i~0 67), 89824#(= main_~i~0 66), 89827#(= main_~i~0 69), 89826#(= main_~i~0 68), 89829#(= main_~i~0 71), 89828#(= main_~i~0 70), 89831#(= main_~i~0 73), 89830#(= main_~i~0 72), 89833#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 89832#(= main_~i~0 74)] [2018-04-13 14:08:47,353 INFO L134 CoverageAnalysis]: Checked inductivity of 14100 backedges. 0 proven. 14100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:08:47,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-04-13 14:08:47,353 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-04-13 14:08:47,354 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=5778, Unknown=0, NotChecked=0, Total=6006 [2018-04-13 14:08:47,354 INFO L87 Difference]: Start difference. First operand 1076 states and 1451 transitions. Second operand 78 states. [2018-04-13 14:09:05,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:09:05,805 INFO L93 Difference]: Finished difference Result 1166 states and 1546 transitions. [2018-04-13 14:09:05,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-04-13 14:09:05,806 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 383 [2018-04-13 14:09:05,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:09:05,807 INFO L225 Difference]: With dead ends: 1166 [2018-04-13 14:09:05,807 INFO L226 Difference]: Without dead ends: 1166 [2018-04-13 14:09:05,807 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 14:09:05,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2018-04-13 14:09:05,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1090. [2018-04-13 14:09:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2018-04-13 14:09:05,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1470 transitions. [2018-04-13 14:09:05,813 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1470 transitions. Word has length 383 [2018-04-13 14:09:05,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:09:05,814 INFO L459 AbstractCegarLoop]: Abstraction has 1090 states and 1470 transitions. [2018-04-13 14:09:05,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-04-13 14:09:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1470 transitions. [2018-04-13 14:09:05,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2018-04-13 14:09:05,815 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:09:05,816 INFO L355 BasicCegarLoop]: trace histogram [77, 77, 76, 76, 76, 1, 1, 1, 1, 1, 1] [2018-04-13 14:09:05,816 INFO L408 AbstractCegarLoop]: === Iteration 77 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:09:05,816 INFO L82 PathProgramCache]: Analyzing trace with hash 668987005, 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 14:09:05,818 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:09:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:09:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:09:07,191 INFO L134 CoverageAnalysis]: Checked inductivity of 14478 backedges. 0 proven. 14478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:09:07,207 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:09:07,207 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2018-04-13 14:09:07,207 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:09:07,207 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 14:09:07,208 INFO L182 omatonBuilderFactory]: Interpolants [92161#(= main_~i~0 67), 92160#(= main_~i~0 66), 92163#(= main_~i~0 69), 92162#(= main_~i~0 68), 92165#(= main_~i~0 71), 92164#(= main_~i~0 70), 92167#(= main_~i~0 73), 92166#(= main_~i~0 72), 92169#(= main_~i~0 75), 92168#(= main_~i~0 74), 92170#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 92091#false, 92090#true, 92095#(= main_~i~0 1), 92094#(= 0 main_~i~0), 92097#(= main_~i~0 3), 92096#(= 2 main_~i~0), 92099#(= main_~i~0 5), 92098#(= main_~i~0 4), 92101#(= main_~i~0 7), 92100#(= main_~i~0 6), 92103#(= main_~i~0 9), 92102#(= main_~i~0 8), 92105#(= main_~i~0 11), 92104#(= main_~i~0 10), 92107#(= main_~i~0 13), 92106#(= main_~i~0 12), 92109#(= main_~i~0 15), 92108#(= main_~i~0 14), 92111#(= main_~i~0 17), 92110#(= main_~i~0 16), 92113#(= main_~i~0 19), 92112#(= main_~i~0 18), 92115#(= main_~i~0 21), 92114#(= main_~i~0 20), 92117#(= main_~i~0 23), 92116#(= main_~i~0 22), 92119#(= main_~i~0 25), 92118#(= main_~i~0 24), 92121#(= main_~i~0 27), 92120#(= main_~i~0 26), 92123#(= main_~i~0 29), 92122#(= main_~i~0 28), 92125#(= main_~i~0 31), 92124#(= main_~i~0 30), 92127#(= main_~i~0 33), 92126#(= main_~i~0 32), 92129#(= main_~i~0 35), 92128#(= main_~i~0 34), 92131#(= main_~i~0 37), 92130#(= main_~i~0 36), 92133#(= main_~i~0 39), 92132#(= main_~i~0 38), 92135#(= main_~i~0 41), 92134#(= main_~i~0 40), 92137#(= main_~i~0 43), 92136#(= main_~i~0 42), 92139#(= main_~i~0 45), 92138#(= main_~i~0 44), 92141#(= main_~i~0 47), 92140#(= main_~i~0 46), 92143#(= main_~i~0 49), 92142#(= main_~i~0 48), 92145#(= main_~i~0 51), 92144#(= main_~i~0 50), 92147#(= main_~i~0 53), 92146#(= main_~i~0 52), 92149#(= main_~i~0 55), 92148#(= main_~i~0 54), 92151#(= main_~i~0 57), 92150#(= main_~i~0 56), 92153#(= main_~i~0 59), 92152#(= main_~i~0 58), 92155#(= main_~i~0 61), 92154#(= main_~i~0 60), 92157#(= main_~i~0 63), 92156#(= main_~i~0 62), 92159#(= main_~i~0 65), 92158#(= main_~i~0 64)] [2018-04-13 14:09:07,208 INFO L134 CoverageAnalysis]: Checked inductivity of 14478 backedges. 0 proven. 14478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:09:07,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-04-13 14:09:07,208 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-04-13 14:09:07,209 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=5931, Unknown=0, NotChecked=0, Total=6162 [2018-04-13 14:09:07,209 INFO L87 Difference]: Start difference. First operand 1090 states and 1470 transitions. Second operand 79 states. [2018-04-13 14:09:25,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:09:25,923 INFO L93 Difference]: Finished difference Result 1181 states and 1566 transitions. [2018-04-13 14:09:25,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-04-13 14:09:25,924 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 388 [2018-04-13 14:09:25,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:09:25,925 INFO L225 Difference]: With dead ends: 1181 [2018-04-13 14:09:25,925 INFO L226 Difference]: Without dead ends: 1181 [2018-04-13 14:09:25,925 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=231, Invalid=5931, Unknown=0, NotChecked=0, Total=6162 [2018-04-13 14:09:25,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2018-04-13 14:09:25,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1104. [2018-04-13 14:09:25,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1104 states. [2018-04-13 14:09:25,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1489 transitions. [2018-04-13 14:09:25,931 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1489 transitions. Word has length 388 [2018-04-13 14:09:25,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:09:25,931 INFO L459 AbstractCegarLoop]: Abstraction has 1104 states and 1489 transitions. [2018-04-13 14:09:25,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-04-13 14:09:25,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1489 transitions. [2018-04-13 14:09:25,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-04-13 14:09:25,932 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:09:25,933 INFO L355 BasicCegarLoop]: trace histogram [78, 78, 77, 77, 77, 1, 1, 1, 1, 1, 1] [2018-04-13 14:09:25,933 INFO L408 AbstractCegarLoop]: === Iteration 78 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:09:25,933 INFO L82 PathProgramCache]: Analyzing trace with hash -436971882, 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 14:09:25,935 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:09:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:09:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:09:27,325 INFO L134 CoverageAnalysis]: Checked inductivity of 14861 backedges. 0 proven. 14861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:09:27,341 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:09:27,341 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-04-13 14:09:27,341 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:09:27,342 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 14:09:27,342 INFO L182 omatonBuilderFactory]: Interpolants [94465#(= main_~i~0 5), 94464#(= main_~i~0 4), 94467#(= main_~i~0 7), 94466#(= main_~i~0 6), 94469#(= main_~i~0 9), 94468#(= main_~i~0 8), 94471#(= main_~i~0 11), 94470#(= main_~i~0 10), 94473#(= main_~i~0 13), 94472#(= main_~i~0 12), 94475#(= main_~i~0 15), 94474#(= main_~i~0 14), 94477#(= main_~i~0 17), 94476#(= main_~i~0 16), 94479#(= main_~i~0 19), 94478#(= main_~i~0 18), 94481#(= main_~i~0 21), 94480#(= main_~i~0 20), 94483#(= main_~i~0 23), 94482#(= main_~i~0 22), 94485#(= main_~i~0 25), 94484#(= main_~i~0 24), 94487#(= main_~i~0 27), 94486#(= main_~i~0 26), 94489#(= main_~i~0 29), 94488#(= main_~i~0 28), 94491#(= main_~i~0 31), 94490#(= main_~i~0 30), 94493#(= main_~i~0 33), 94492#(= main_~i~0 32), 94495#(= main_~i~0 35), 94494#(= main_~i~0 34), 94497#(= main_~i~0 37), 94496#(= main_~i~0 36), 94499#(= main_~i~0 39), 94498#(= main_~i~0 38), 94501#(= main_~i~0 41), 94500#(= main_~i~0 40), 94503#(= main_~i~0 43), 94502#(= main_~i~0 42), 94505#(= main_~i~0 45), 94504#(= main_~i~0 44), 94507#(= main_~i~0 47), 94506#(= main_~i~0 46), 94509#(= main_~i~0 49), 94508#(= main_~i~0 48), 94511#(= main_~i~0 51), 94510#(= main_~i~0 50), 94513#(= main_~i~0 53), 94512#(= main_~i~0 52), 94515#(= main_~i~0 55), 94514#(= main_~i~0 54), 94517#(= main_~i~0 57), 94516#(= main_~i~0 56), 94519#(= main_~i~0 59), 94518#(= main_~i~0 58), 94521#(= main_~i~0 61), 94520#(= main_~i~0 60), 94523#(= main_~i~0 63), 94522#(= main_~i~0 62), 94525#(= main_~i~0 65), 94524#(= main_~i~0 64), 94527#(= main_~i~0 67), 94526#(= main_~i~0 66), 94529#(= main_~i~0 69), 94528#(= main_~i~0 68), 94531#(= main_~i~0 71), 94530#(= main_~i~0 70), 94533#(= main_~i~0 73), 94532#(= main_~i~0 72), 94535#(= main_~i~0 75), 94534#(= main_~i~0 74), 94537#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 94536#(= main_~i~0 76), 94457#false, 94456#true, 94461#(= main_~i~0 1), 94460#(= 0 main_~i~0), 94463#(= main_~i~0 3), 94462#(= 2 main_~i~0)] [2018-04-13 14:09:27,342 INFO L134 CoverageAnalysis]: Checked inductivity of 14861 backedges. 0 proven. 14861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:09:27,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-04-13 14:09:27,343 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-04-13 14:09:27,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=6086, Unknown=0, NotChecked=0, Total=6320 [2018-04-13 14:09:27,343 INFO L87 Difference]: Start difference. First operand 1104 states and 1489 transitions. Second operand 80 states. [2018-04-13 14:09:46,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:09:46,462 INFO L93 Difference]: Finished difference Result 1196 states and 1586 transitions. [2018-04-13 14:09:46,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-04-13 14:09:46,462 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 393 [2018-04-13 14:09:46,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:09:46,463 INFO L225 Difference]: With dead ends: 1196 [2018-04-13 14:09:46,463 INFO L226 Difference]: Without dead ends: 1196 [2018-04-13 14:09:46,464 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 14:09:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2018-04-13 14:09:46,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1118. [2018-04-13 14:09:46,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1118 states. [2018-04-13 14:09:46,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1508 transitions. [2018-04-13 14:09:46,469 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1508 transitions. Word has length 393 [2018-04-13 14:09:46,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:09:46,470 INFO L459 AbstractCegarLoop]: Abstraction has 1118 states and 1508 transitions. [2018-04-13 14:09:46,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-04-13 14:09:46,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1508 transitions. [2018-04-13 14:09:46,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2018-04-13 14:09:46,471 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:09:46,471 INFO L355 BasicCegarLoop]: trace histogram [79, 79, 78, 78, 78, 1, 1, 1, 1, 1, 1] [2018-04-13 14:09:46,471 INFO L408 AbstractCegarLoop]: === Iteration 79 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:09:46,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1997149725, 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 14:09:46,474 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:09:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:09:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:09:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 15249 backedges. 0 proven. 15249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:09:47,923 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:09:47,923 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2018-04-13 14:09:47,923 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:09:47,923 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 14:09:47,923 INFO L182 omatonBuilderFactory]: Interpolants [96897#(= main_~i~0 41), 96896#(= main_~i~0 40), 96899#(= main_~i~0 43), 96898#(= main_~i~0 42), 96901#(= main_~i~0 45), 96900#(= main_~i~0 44), 96903#(= main_~i~0 47), 96902#(= main_~i~0 46), 96905#(= main_~i~0 49), 96904#(= main_~i~0 48), 96907#(= main_~i~0 51), 96906#(= main_~i~0 50), 96909#(= main_~i~0 53), 96908#(= main_~i~0 52), 96911#(= main_~i~0 55), 96910#(= main_~i~0 54), 96913#(= main_~i~0 57), 96912#(= main_~i~0 56), 96915#(= main_~i~0 59), 96914#(= main_~i~0 58), 96917#(= main_~i~0 61), 96916#(= main_~i~0 60), 96919#(= main_~i~0 63), 96918#(= main_~i~0 62), 96921#(= main_~i~0 65), 96920#(= main_~i~0 64), 96923#(= main_~i~0 67), 96922#(= main_~i~0 66), 96925#(= main_~i~0 69), 96924#(= main_~i~0 68), 96927#(= main_~i~0 71), 96926#(= main_~i~0 70), 96929#(= main_~i~0 73), 96928#(= main_~i~0 72), 96931#(= main_~i~0 75), 96930#(= main_~i~0 74), 96933#(= main_~i~0 77), 96932#(= main_~i~0 76), 96934#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 96853#false, 96852#true, 96857#(= main_~i~0 1), 96856#(= 0 main_~i~0), 96859#(= main_~i~0 3), 96858#(= 2 main_~i~0), 96861#(= main_~i~0 5), 96860#(= main_~i~0 4), 96863#(= main_~i~0 7), 96862#(= main_~i~0 6), 96865#(= main_~i~0 9), 96864#(= main_~i~0 8), 96867#(= main_~i~0 11), 96866#(= main_~i~0 10), 96869#(= main_~i~0 13), 96868#(= main_~i~0 12), 96871#(= main_~i~0 15), 96870#(= main_~i~0 14), 96873#(= main_~i~0 17), 96872#(= main_~i~0 16), 96875#(= main_~i~0 19), 96874#(= main_~i~0 18), 96877#(= main_~i~0 21), 96876#(= main_~i~0 20), 96879#(= main_~i~0 23), 96878#(= main_~i~0 22), 96881#(= main_~i~0 25), 96880#(= main_~i~0 24), 96883#(= main_~i~0 27), 96882#(= main_~i~0 26), 96885#(= main_~i~0 29), 96884#(= main_~i~0 28), 96887#(= main_~i~0 31), 96886#(= main_~i~0 30), 96889#(= main_~i~0 33), 96888#(= main_~i~0 32), 96891#(= main_~i~0 35), 96890#(= main_~i~0 34), 96893#(= main_~i~0 37), 96892#(= main_~i~0 36), 96895#(= main_~i~0 39), 96894#(= main_~i~0 38)] [2018-04-13 14:09:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 15249 backedges. 0 proven. 15249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:09:47,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-04-13 14:09:47,924 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-04-13 14:09:47,924 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=6243, Unknown=0, NotChecked=0, Total=6480 [2018-04-13 14:09:47,924 INFO L87 Difference]: Start difference. First operand 1118 states and 1508 transitions. Second operand 81 states. [2018-04-13 14:10:08,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:10:08,025 INFO L93 Difference]: Finished difference Result 1211 states and 1606 transitions. [2018-04-13 14:10:08,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-04-13 14:10:08,026 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 398 [2018-04-13 14:10:08,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:10:08,027 INFO L225 Difference]: With dead ends: 1211 [2018-04-13 14:10:08,027 INFO L226 Difference]: Without dead ends: 1211 [2018-04-13 14:10:08,027 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=237, Invalid=6243, Unknown=0, NotChecked=0, Total=6480 [2018-04-13 14:10:08,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2018-04-13 14:10:08,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1132. [2018-04-13 14:10:08,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1132 states. [2018-04-13 14:10:08,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1527 transitions. [2018-04-13 14:10:08,034 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1527 transitions. Word has length 398 [2018-04-13 14:10:08,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:10:08,034 INFO L459 AbstractCegarLoop]: Abstraction has 1132 states and 1527 transitions. [2018-04-13 14:10:08,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-04-13 14:10:08,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1527 transitions. [2018-04-13 14:10:08,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-04-13 14:10:08,036 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:10:08,036 INFO L355 BasicCegarLoop]: trace histogram [80, 80, 79, 79, 79, 1, 1, 1, 1, 1, 1] [2018-04-13 14:10:08,036 INFO L408 AbstractCegarLoop]: === Iteration 80 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:10:08,036 INFO L82 PathProgramCache]: Analyzing trace with hash 521270006, 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 14:10:08,038 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:10:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:10:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:10:09,541 INFO L134 CoverageAnalysis]: Checked inductivity of 15642 backedges. 0 proven. 15642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:10:09,558 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:10:09,558 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-04-13 14:10:09,558 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:10:09,558 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 14:10:09,558 INFO L182 omatonBuilderFactory]: Interpolants [99329#(= main_~i~0 47), 99328#(= main_~i~0 46), 99331#(= main_~i~0 49), 99330#(= main_~i~0 48), 99333#(= main_~i~0 51), 99332#(= main_~i~0 50), 99335#(= main_~i~0 53), 99334#(= main_~i~0 52), 99337#(= main_~i~0 55), 99336#(= main_~i~0 54), 99339#(= main_~i~0 57), 99338#(= main_~i~0 56), 99341#(= main_~i~0 59), 99340#(= main_~i~0 58), 99343#(= main_~i~0 61), 99342#(= main_~i~0 60), 99345#(= main_~i~0 63), 99344#(= main_~i~0 62), 99347#(= main_~i~0 65), 99346#(= main_~i~0 64), 99349#(= main_~i~0 67), 99348#(= main_~i~0 66), 99351#(= main_~i~0 69), 99350#(= main_~i~0 68), 99353#(= main_~i~0 71), 99352#(= main_~i~0 70), 99355#(= main_~i~0 73), 99354#(= main_~i~0 72), 99357#(= main_~i~0 75), 99356#(= main_~i~0 74), 99359#(= main_~i~0 77), 99358#(= main_~i~0 76), 99361#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 99360#(= main_~i~0 78), 99279#false, 99278#true, 99283#(= main_~i~0 1), 99282#(= 0 main_~i~0), 99285#(= main_~i~0 3), 99284#(= 2 main_~i~0), 99287#(= main_~i~0 5), 99286#(= main_~i~0 4), 99289#(= main_~i~0 7), 99288#(= main_~i~0 6), 99291#(= main_~i~0 9), 99290#(= main_~i~0 8), 99293#(= main_~i~0 11), 99292#(= main_~i~0 10), 99295#(= main_~i~0 13), 99294#(= main_~i~0 12), 99297#(= main_~i~0 15), 99296#(= main_~i~0 14), 99299#(= main_~i~0 17), 99298#(= main_~i~0 16), 99301#(= main_~i~0 19), 99300#(= main_~i~0 18), 99303#(= main_~i~0 21), 99302#(= main_~i~0 20), 99305#(= main_~i~0 23), 99304#(= main_~i~0 22), 99307#(= main_~i~0 25), 99306#(= main_~i~0 24), 99309#(= main_~i~0 27), 99308#(= main_~i~0 26), 99311#(= main_~i~0 29), 99310#(= main_~i~0 28), 99313#(= main_~i~0 31), 99312#(= main_~i~0 30), 99315#(= main_~i~0 33), 99314#(= main_~i~0 32), 99317#(= main_~i~0 35), 99316#(= main_~i~0 34), 99319#(= main_~i~0 37), 99318#(= main_~i~0 36), 99321#(= main_~i~0 39), 99320#(= main_~i~0 38), 99323#(= main_~i~0 41), 99322#(= main_~i~0 40), 99325#(= main_~i~0 43), 99324#(= main_~i~0 42), 99327#(= main_~i~0 45), 99326#(= main_~i~0 44)] [2018-04-13 14:10:09,559 INFO L134 CoverageAnalysis]: Checked inductivity of 15642 backedges. 0 proven. 15642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:10:09,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-04-13 14:10:09,559 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-04-13 14:10:09,559 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=6402, Unknown=0, NotChecked=0, Total=6642 [2018-04-13 14:10:09,559 INFO L87 Difference]: Start difference. First operand 1132 states and 1527 transitions. Second operand 82 states. [2018-04-13 14:10:29,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:10:29,822 INFO L93 Difference]: Finished difference Result 1226 states and 1626 transitions. [2018-04-13 14:10:29,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-04-13 14:10:29,822 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 403 [2018-04-13 14:10:29,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:10:29,823 INFO L225 Difference]: With dead ends: 1226 [2018-04-13 14:10:29,823 INFO L226 Difference]: Without dead ends: 1226 [2018-04-13 14:10:29,824 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=240, Invalid=6402, Unknown=0, NotChecked=0, Total=6642 [2018-04-13 14:10:29,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2018-04-13 14:10:29,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1146. [2018-04-13 14:10:29,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1146 states. [2018-04-13 14:10:29,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1546 transitions. [2018-04-13 14:10:29,834 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1546 transitions. Word has length 403 [2018-04-13 14:10:29,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:10:29,834 INFO L459 AbstractCegarLoop]: Abstraction has 1146 states and 1546 transitions. [2018-04-13 14:10:29,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-04-13 14:10:29,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1546 transitions. [2018-04-13 14:10:29,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-04-13 14:10:29,836 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:10:29,836 INFO L355 BasicCegarLoop]: trace histogram [81, 81, 80, 80, 80, 1, 1, 1, 1, 1, 1] [2018-04-13 14:10:29,836 INFO L408 AbstractCegarLoop]: === Iteration 81 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:10:29,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1071592893, 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 14:10:29,838 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:10:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:10:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:10:31,369 INFO L134 CoverageAnalysis]: Checked inductivity of 16040 backedges. 0 proven. 16040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:10:31,385 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:10:31,386 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2018-04-13 14:10:31,386 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:10:31,386 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 14:10:31,386 INFO L182 omatonBuilderFactory]: Interpolants [101761#(= main_~i~0 23), 101760#(= main_~i~0 22), 101763#(= main_~i~0 25), 101762#(= main_~i~0 24), 101765#(= main_~i~0 27), 101764#(= main_~i~0 26), 101767#(= main_~i~0 29), 101766#(= main_~i~0 28), 101769#(= main_~i~0 31), 101768#(= main_~i~0 30), 101771#(= main_~i~0 33), 101770#(= main_~i~0 32), 101773#(= main_~i~0 35), 101772#(= main_~i~0 34), 101775#(= main_~i~0 37), 101774#(= main_~i~0 36), 101777#(= main_~i~0 39), 101776#(= main_~i~0 38), 101779#(= main_~i~0 41), 101778#(= main_~i~0 40), 101781#(= main_~i~0 43), 101780#(= main_~i~0 42), 101783#(= main_~i~0 45), 101782#(= main_~i~0 44), 101785#(= main_~i~0 47), 101784#(= main_~i~0 46), 101787#(= main_~i~0 49), 101786#(= main_~i~0 48), 101789#(= main_~i~0 51), 101788#(= main_~i~0 50), 101791#(= main_~i~0 53), 101790#(= main_~i~0 52), 101793#(= main_~i~0 55), 101792#(= main_~i~0 54), 101795#(= main_~i~0 57), 101794#(= main_~i~0 56), 101797#(= main_~i~0 59), 101796#(= main_~i~0 58), 101799#(= main_~i~0 61), 101798#(= main_~i~0 60), 101801#(= main_~i~0 63), 101800#(= main_~i~0 62), 101803#(= main_~i~0 65), 101802#(= main_~i~0 64), 101805#(= main_~i~0 67), 101804#(= main_~i~0 66), 101807#(= main_~i~0 69), 101806#(= main_~i~0 68), 101809#(= main_~i~0 71), 101808#(= main_~i~0 70), 101811#(= main_~i~0 73), 101810#(= main_~i~0 72), 101813#(= main_~i~0 75), 101812#(= main_~i~0 74), 101815#(= main_~i~0 77), 101814#(= main_~i~0 76), 101817#(= main_~i~0 79), 101816#(= main_~i~0 78), 101818#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 101735#false, 101734#true, 101739#(= main_~i~0 1), 101738#(= 0 main_~i~0), 101741#(= main_~i~0 3), 101740#(= 2 main_~i~0), 101743#(= main_~i~0 5), 101742#(= main_~i~0 4), 101745#(= main_~i~0 7), 101744#(= main_~i~0 6), 101747#(= main_~i~0 9), 101746#(= main_~i~0 8), 101749#(= main_~i~0 11), 101748#(= main_~i~0 10), 101751#(= main_~i~0 13), 101750#(= main_~i~0 12), 101753#(= main_~i~0 15), 101752#(= main_~i~0 14), 101755#(= main_~i~0 17), 101754#(= main_~i~0 16), 101757#(= main_~i~0 19), 101756#(= main_~i~0 18), 101759#(= main_~i~0 21), 101758#(= main_~i~0 20)] [2018-04-13 14:10:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 16040 backedges. 0 proven. 16040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:10:31,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-04-13 14:10:31,387 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-04-13 14:10:31,387 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=6563, Unknown=0, NotChecked=0, Total=6806 [2018-04-13 14:10:31,387 INFO L87 Difference]: Start difference. First operand 1146 states and 1546 transitions. Second operand 83 states. [2018-04-13 14:10:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:10:52,164 INFO L93 Difference]: Finished difference Result 1241 states and 1646 transitions. [2018-04-13 14:10:52,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-04-13 14:10:52,191 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 408 [2018-04-13 14:10:52,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:10:52,193 INFO L225 Difference]: With dead ends: 1241 [2018-04-13 14:10:52,193 INFO L226 Difference]: Without dead ends: 1241 [2018-04-13 14:10:52,193 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=243, Invalid=6563, Unknown=0, NotChecked=0, Total=6806 [2018-04-13 14:10:52,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2018-04-13 14:10:52,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1160. [2018-04-13 14:10:52,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1160 states. [2018-04-13 14:10:52,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1565 transitions. [2018-04-13 14:10:52,198 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1565 transitions. Word has length 408 [2018-04-13 14:10:52,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:10:52,198 INFO L459 AbstractCegarLoop]: Abstraction has 1160 states and 1565 transitions. [2018-04-13 14:10:52,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-04-13 14:10:52,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1565 transitions. [2018-04-13 14:10:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-04-13 14:10:52,200 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:10:52,200 INFO L355 BasicCegarLoop]: trace histogram [82, 82, 81, 81, 81, 1, 1, 1, 1, 1, 1] [2018-04-13 14:10:52,200 INFO L408 AbstractCegarLoop]: === Iteration 82 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:10:52,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1969252522, 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 14:10:52,203 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:10:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:10:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:10:53,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16443 backedges. 0 proven. 16443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:10:53,755 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:10:53,755 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-04-13 14:10:53,755 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:10:53,755 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 14:10:53,755 INFO L182 omatonBuilderFactory]: Interpolants [104221#false, 104220#true, 104225#(= main_~i~0 1), 104224#(= 0 main_~i~0), 104227#(= main_~i~0 3), 104226#(= 2 main_~i~0), 104229#(= main_~i~0 5), 104228#(= main_~i~0 4), 104231#(= main_~i~0 7), 104230#(= main_~i~0 6), 104233#(= main_~i~0 9), 104232#(= main_~i~0 8), 104235#(= main_~i~0 11), 104234#(= main_~i~0 10), 104237#(= main_~i~0 13), 104236#(= main_~i~0 12), 104239#(= main_~i~0 15), 104238#(= main_~i~0 14), 104241#(= main_~i~0 17), 104240#(= main_~i~0 16), 104243#(= main_~i~0 19), 104242#(= main_~i~0 18), 104245#(= main_~i~0 21), 104244#(= main_~i~0 20), 104247#(= main_~i~0 23), 104246#(= main_~i~0 22), 104249#(= main_~i~0 25), 104248#(= main_~i~0 24), 104251#(= main_~i~0 27), 104250#(= main_~i~0 26), 104253#(= main_~i~0 29), 104252#(= main_~i~0 28), 104255#(= main_~i~0 31), 104254#(= main_~i~0 30), 104257#(= main_~i~0 33), 104256#(= main_~i~0 32), 104259#(= main_~i~0 35), 104258#(= main_~i~0 34), 104261#(= main_~i~0 37), 104260#(= main_~i~0 36), 104263#(= main_~i~0 39), 104262#(= main_~i~0 38), 104265#(= main_~i~0 41), 104264#(= main_~i~0 40), 104267#(= main_~i~0 43), 104266#(= main_~i~0 42), 104269#(= main_~i~0 45), 104268#(= main_~i~0 44), 104271#(= main_~i~0 47), 104270#(= main_~i~0 46), 104273#(= main_~i~0 49), 104272#(= main_~i~0 48), 104275#(= main_~i~0 51), 104274#(= main_~i~0 50), 104277#(= main_~i~0 53), 104276#(= main_~i~0 52), 104279#(= main_~i~0 55), 104278#(= main_~i~0 54), 104281#(= main_~i~0 57), 104280#(= main_~i~0 56), 104283#(= main_~i~0 59), 104282#(= main_~i~0 58), 104285#(= main_~i~0 61), 104284#(= main_~i~0 60), 104287#(= main_~i~0 63), 104286#(= main_~i~0 62), 104289#(= main_~i~0 65), 104288#(= main_~i~0 64), 104291#(= main_~i~0 67), 104290#(= main_~i~0 66), 104293#(= main_~i~0 69), 104292#(= main_~i~0 68), 104295#(= main_~i~0 71), 104294#(= main_~i~0 70), 104297#(= main_~i~0 73), 104296#(= main_~i~0 72), 104299#(= main_~i~0 75), 104298#(= main_~i~0 74), 104301#(= main_~i~0 77), 104300#(= main_~i~0 76), 104303#(= main_~i~0 79), 104302#(= main_~i~0 78), 104305#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 104304#(= main_~i~0 80)] [2018-04-13 14:10:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 16443 backedges. 0 proven. 16443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:10:53,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-04-13 14:10:53,756 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-04-13 14:10:53,756 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=6726, Unknown=0, NotChecked=0, Total=6972 [2018-04-13 14:10:53,756 INFO L87 Difference]: Start difference. First operand 1160 states and 1565 transitions. Second operand 84 states. [2018-04-13 14:11:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:11:15,322 INFO L93 Difference]: Finished difference Result 1256 states and 1666 transitions. [2018-04-13 14:11:15,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-04-13 14:11:15,323 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 413 [2018-04-13 14:11:15,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:11:15,324 INFO L225 Difference]: With dead ends: 1256 [2018-04-13 14:11:15,324 INFO L226 Difference]: Without dead ends: 1256 [2018-04-13 14:11:15,324 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 14:11:15,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2018-04-13 14:11:15,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1174. [2018-04-13 14:11:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2018-04-13 14:11:15,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1584 transitions. [2018-04-13 14:11:15,329 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1584 transitions. Word has length 413 [2018-04-13 14:11:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:11:15,330 INFO L459 AbstractCegarLoop]: Abstraction has 1174 states and 1584 transitions. [2018-04-13 14:11:15,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-04-13 14:11:15,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1584 transitions. [2018-04-13 14:11:15,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2018-04-13 14:11:15,331 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:11:15,331 INFO L355 BasicCegarLoop]: trace histogram [83, 83, 82, 82, 82, 1, 1, 1, 1, 1, 1] [2018-04-13 14:11:15,331 INFO L408 AbstractCegarLoop]: === Iteration 83 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:11:15,331 INFO L82 PathProgramCache]: Analyzing trace with hash -2096542371, 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 14:11:15,334 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:11:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:11:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:11:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 16851 backedges. 0 proven. 16851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:11:16,989 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:11:16,990 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2018-04-13 14:11:16,990 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:11:16,990 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 14:11:16,990 INFO L182 omatonBuilderFactory]: Interpolants [106753#(= main_~i~0 13), 106752#(= main_~i~0 12), 106755#(= main_~i~0 15), 106754#(= main_~i~0 14), 106757#(= main_~i~0 17), 106756#(= main_~i~0 16), 106759#(= main_~i~0 19), 106758#(= main_~i~0 18), 106761#(= main_~i~0 21), 106760#(= main_~i~0 20), 106763#(= main_~i~0 23), 106762#(= main_~i~0 22), 106765#(= main_~i~0 25), 106764#(= main_~i~0 24), 106767#(= main_~i~0 27), 106766#(= main_~i~0 26), 106769#(= main_~i~0 29), 106768#(= main_~i~0 28), 106771#(= main_~i~0 31), 106770#(= main_~i~0 30), 106773#(= main_~i~0 33), 106772#(= main_~i~0 32), 106775#(= main_~i~0 35), 106774#(= main_~i~0 34), 106777#(= main_~i~0 37), 106776#(= main_~i~0 36), 106779#(= main_~i~0 39), 106778#(= main_~i~0 38), 106781#(= main_~i~0 41), 106780#(= main_~i~0 40), 106783#(= main_~i~0 43), 106782#(= main_~i~0 42), 106785#(= main_~i~0 45), 106784#(= main_~i~0 44), 106787#(= main_~i~0 47), 106786#(= main_~i~0 46), 106789#(= main_~i~0 49), 106788#(= main_~i~0 48), 106791#(= main_~i~0 51), 106790#(= main_~i~0 50), 106793#(= main_~i~0 53), 106792#(= main_~i~0 52), 106795#(= main_~i~0 55), 106794#(= main_~i~0 54), 106797#(= main_~i~0 57), 106796#(= main_~i~0 56), 106799#(= main_~i~0 59), 106798#(= main_~i~0 58), 106801#(= main_~i~0 61), 106800#(= main_~i~0 60), 106803#(= main_~i~0 63), 106802#(= main_~i~0 62), 106805#(= main_~i~0 65), 106804#(= main_~i~0 64), 106807#(= main_~i~0 67), 106806#(= main_~i~0 66), 106809#(= main_~i~0 69), 106808#(= main_~i~0 68), 106811#(= main_~i~0 71), 106810#(= main_~i~0 70), 106813#(= main_~i~0 73), 106812#(= main_~i~0 72), 106815#(= main_~i~0 75), 106814#(= main_~i~0 74), 106817#(= main_~i~0 77), 106816#(= main_~i~0 76), 106819#(= main_~i~0 79), 106818#(= main_~i~0 78), 106821#(= main_~i~0 81), 106820#(= main_~i~0 80), 106822#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 106737#false, 106736#true, 106741#(= main_~i~0 1), 106740#(= 0 main_~i~0), 106743#(= main_~i~0 3), 106742#(= 2 main_~i~0), 106745#(= main_~i~0 5), 106744#(= main_~i~0 4), 106747#(= main_~i~0 7), 106746#(= main_~i~0 6), 106749#(= main_~i~0 9), 106748#(= main_~i~0 8), 106751#(= main_~i~0 11), 106750#(= main_~i~0 10)] [2018-04-13 14:11:16,991 INFO L134 CoverageAnalysis]: Checked inductivity of 16851 backedges. 0 proven. 16851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:11:16,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-04-13 14:11:16,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-04-13 14:11:16,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=6891, Unknown=0, NotChecked=0, Total=7140 [2018-04-13 14:11:16,991 INFO L87 Difference]: Start difference. First operand 1174 states and 1584 transitions. Second operand 85 states. [2018-04-13 14:11:38,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:11:38,660 INFO L93 Difference]: Finished difference Result 1271 states and 1686 transitions. [2018-04-13 14:11:38,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-04-13 14:11:38,661 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 418 [2018-04-13 14:11:38,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:11:38,661 INFO L225 Difference]: With dead ends: 1271 [2018-04-13 14:11:38,661 INFO L226 Difference]: Without dead ends: 1271 [2018-04-13 14:11:38,662 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 14:11:38,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2018-04-13 14:11:38,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1188. [2018-04-13 14:11:38,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1188 states. [2018-04-13 14:11:38,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1603 transitions. [2018-04-13 14:11:38,668 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1603 transitions. Word has length 418 [2018-04-13 14:11:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:11:38,668 INFO L459 AbstractCegarLoop]: Abstraction has 1188 states and 1603 transitions. [2018-04-13 14:11:38,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-04-13 14:11:38,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1603 transitions. [2018-04-13 14:11:38,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2018-04-13 14:11:38,669 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:11:38,670 INFO L355 BasicCegarLoop]: trace histogram [84, 84, 83, 83, 83, 1, 1, 1, 1, 1, 1] [2018-04-13 14:11:38,670 INFO L408 AbstractCegarLoop]: === Iteration 84 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:11:38,670 INFO L82 PathProgramCache]: Analyzing trace with hash 36914102, 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 14:11:38,672 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:11:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:11:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:11:40,334 INFO L134 CoverageAnalysis]: Checked inductivity of 17264 backedges. 0 proven. 17264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:11:40,351 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:11:40,351 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2018-04-13 14:11:40,351 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:11:40,351 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 14:11:40,352 INFO L182 omatonBuilderFactory]: Interpolants [109313#(= main_~i~0 27), 109312#(= main_~i~0 26), 109315#(= main_~i~0 29), 109314#(= main_~i~0 28), 109317#(= main_~i~0 31), 109316#(= main_~i~0 30), 109319#(= main_~i~0 33), 109318#(= main_~i~0 32), 109321#(= main_~i~0 35), 109320#(= main_~i~0 34), 109323#(= main_~i~0 37), 109322#(= main_~i~0 36), 109325#(= main_~i~0 39), 109324#(= main_~i~0 38), 109327#(= main_~i~0 41), 109326#(= main_~i~0 40), 109329#(= main_~i~0 43), 109328#(= main_~i~0 42), 109331#(= main_~i~0 45), 109330#(= main_~i~0 44), 109333#(= main_~i~0 47), 109332#(= main_~i~0 46), 109335#(= main_~i~0 49), 109334#(= main_~i~0 48), 109337#(= main_~i~0 51), 109336#(= main_~i~0 50), 109339#(= main_~i~0 53), 109338#(= main_~i~0 52), 109341#(= main_~i~0 55), 109340#(= main_~i~0 54), 109343#(= main_~i~0 57), 109342#(= main_~i~0 56), 109345#(= main_~i~0 59), 109344#(= main_~i~0 58), 109347#(= main_~i~0 61), 109346#(= main_~i~0 60), 109349#(= main_~i~0 63), 109348#(= main_~i~0 62), 109351#(= main_~i~0 65), 109350#(= main_~i~0 64), 109353#(= main_~i~0 67), 109352#(= main_~i~0 66), 109355#(= main_~i~0 69), 109354#(= main_~i~0 68), 109357#(= main_~i~0 71), 109356#(= main_~i~0 70), 109359#(= main_~i~0 73), 109358#(= main_~i~0 72), 109361#(= main_~i~0 75), 109360#(= main_~i~0 74), 109363#(= main_~i~0 77), 109362#(= main_~i~0 76), 109365#(= main_~i~0 79), 109364#(= main_~i~0 78), 109367#(= main_~i~0 81), 109366#(= main_~i~0 80), 109369#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 109368#(= main_~i~0 82), 109283#false, 109282#true, 109287#(= main_~i~0 1), 109286#(= 0 main_~i~0), 109289#(= main_~i~0 3), 109288#(= 2 main_~i~0), 109291#(= main_~i~0 5), 109290#(= main_~i~0 4), 109293#(= main_~i~0 7), 109292#(= main_~i~0 6), 109295#(= main_~i~0 9), 109294#(= main_~i~0 8), 109297#(= main_~i~0 11), 109296#(= main_~i~0 10), 109299#(= main_~i~0 13), 109298#(= main_~i~0 12), 109301#(= main_~i~0 15), 109300#(= main_~i~0 14), 109303#(= main_~i~0 17), 109302#(= main_~i~0 16), 109305#(= main_~i~0 19), 109304#(= main_~i~0 18), 109307#(= main_~i~0 21), 109306#(= main_~i~0 20), 109309#(= main_~i~0 23), 109308#(= main_~i~0 22), 109311#(= main_~i~0 25), 109310#(= main_~i~0 24)] [2018-04-13 14:11:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 17264 backedges. 0 proven. 17264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:11:40,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 86 states [2018-04-13 14:11:40,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2018-04-13 14:11:40,352 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=7058, Unknown=0, NotChecked=0, Total=7310 [2018-04-13 14:11:40,353 INFO L87 Difference]: Start difference. First operand 1188 states and 1603 transitions. Second operand 86 states. [2018-04-13 14:12:02,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:12:02,925 INFO L93 Difference]: Finished difference Result 1286 states and 1706 transitions. [2018-04-13 14:12:02,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-04-13 14:12:02,925 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 423 [2018-04-13 14:12:02,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:12:02,927 INFO L225 Difference]: With dead ends: 1286 [2018-04-13 14:12:02,927 INFO L226 Difference]: Without dead ends: 1286 [2018-04-13 14:12:02,927 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=252, Invalid=7058, Unknown=0, NotChecked=0, Total=7310 [2018-04-13 14:12:02,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2018-04-13 14:12:02,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1202. [2018-04-13 14:12:02,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1202 states. [2018-04-13 14:12:02,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1622 transitions. [2018-04-13 14:12:02,933 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1622 transitions. Word has length 423 [2018-04-13 14:12:02,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:12:02,933 INFO L459 AbstractCegarLoop]: Abstraction has 1202 states and 1622 transitions. [2018-04-13 14:12:02,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 86 states. [2018-04-13 14:12:02,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1622 transitions. [2018-04-13 14:12:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2018-04-13 14:12:02,934 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:12:02,935 INFO L355 BasicCegarLoop]: trace histogram [85, 85, 84, 84, 84, 1, 1, 1, 1, 1, 1] [2018-04-13 14:12:02,935 INFO L408 AbstractCegarLoop]: === Iteration 85 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:12:02,935 INFO L82 PathProgramCache]: Analyzing trace with hash -189637379, 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 14:12:02,937 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:12:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:12:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:12:04,589 INFO L134 CoverageAnalysis]: Checked inductivity of 17682 backedges. 0 proven. 17682 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:12:04,606 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:12:04,606 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [86] total 86 [2018-04-13 14:12:04,606 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:12:04,607 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 14:12:04,607 INFO L182 omatonBuilderFactory]: Interpolants [111873#(= main_~i~0 11), 111872#(= main_~i~0 10), 111875#(= main_~i~0 13), 111874#(= main_~i~0 12), 111877#(= main_~i~0 15), 111876#(= main_~i~0 14), 111879#(= main_~i~0 17), 111878#(= main_~i~0 16), 111881#(= main_~i~0 19), 111880#(= main_~i~0 18), 111883#(= main_~i~0 21), 111882#(= main_~i~0 20), 111885#(= main_~i~0 23), 111884#(= main_~i~0 22), 111887#(= main_~i~0 25), 111886#(= main_~i~0 24), 111889#(= main_~i~0 27), 111888#(= main_~i~0 26), 111891#(= main_~i~0 29), 111890#(= main_~i~0 28), 111893#(= main_~i~0 31), 111892#(= main_~i~0 30), 111895#(= main_~i~0 33), 111894#(= main_~i~0 32), 111897#(= main_~i~0 35), 111896#(= main_~i~0 34), 111899#(= main_~i~0 37), 111898#(= main_~i~0 36), 111901#(= main_~i~0 39), 111900#(= main_~i~0 38), 111903#(= main_~i~0 41), 111902#(= main_~i~0 40), 111905#(= main_~i~0 43), 111904#(= main_~i~0 42), 111907#(= main_~i~0 45), 111906#(= main_~i~0 44), 111909#(= main_~i~0 47), 111908#(= main_~i~0 46), 111911#(= main_~i~0 49), 111910#(= main_~i~0 48), 111913#(= main_~i~0 51), 111912#(= main_~i~0 50), 111915#(= main_~i~0 53), 111914#(= main_~i~0 52), 111917#(= main_~i~0 55), 111916#(= main_~i~0 54), 111919#(= main_~i~0 57), 111918#(= main_~i~0 56), 111921#(= main_~i~0 59), 111920#(= main_~i~0 58), 111923#(= main_~i~0 61), 111922#(= main_~i~0 60), 111925#(= main_~i~0 63), 111924#(= main_~i~0 62), 111927#(= main_~i~0 65), 111926#(= main_~i~0 64), 111929#(= main_~i~0 67), 111928#(= main_~i~0 66), 111931#(= main_~i~0 69), 111930#(= main_~i~0 68), 111933#(= main_~i~0 71), 111932#(= main_~i~0 70), 111935#(= main_~i~0 73), 111934#(= main_~i~0 72), 111937#(= main_~i~0 75), 111936#(= main_~i~0 74), 111939#(= main_~i~0 77), 111938#(= main_~i~0 76), 111941#(= main_~i~0 79), 111940#(= main_~i~0 78), 111943#(= main_~i~0 81), 111942#(= main_~i~0 80), 111945#(= main_~i~0 83), 111944#(= main_~i~0 82), 111946#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 111859#false, 111858#true, 111863#(= main_~i~0 1), 111862#(= 0 main_~i~0), 111865#(= main_~i~0 3), 111864#(= 2 main_~i~0), 111867#(= main_~i~0 5), 111866#(= main_~i~0 4), 111869#(= main_~i~0 7), 111868#(= main_~i~0 6), 111871#(= main_~i~0 9), 111870#(= main_~i~0 8)] [2018-04-13 14:12:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 17682 backedges. 0 proven. 17682 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:12:04,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-04-13 14:12:04,608 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-04-13 14:12:04,608 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=7227, Unknown=0, NotChecked=0, Total=7482 [2018-04-13 14:12:04,608 INFO L87 Difference]: Start difference. First operand 1202 states and 1622 transitions. Second operand 87 states. [2018-04-13 14:12:27,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:12:27,326 INFO L93 Difference]: Finished difference Result 1301 states and 1726 transitions. [2018-04-13 14:12:27,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-04-13 14:12:27,326 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 428 [2018-04-13 14:12:27,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:12:27,327 INFO L225 Difference]: With dead ends: 1301 [2018-04-13 14:12:27,327 INFO L226 Difference]: Without dead ends: 1301 [2018-04-13 14:12:27,328 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 14:12:27,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2018-04-13 14:12:27,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1216. [2018-04-13 14:12:27,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1216 states. [2018-04-13 14:12:27,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1641 transitions. [2018-04-13 14:12:27,338 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1641 transitions. Word has length 428 [2018-04-13 14:12:27,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:12:27,339 INFO L459 AbstractCegarLoop]: Abstraction has 1216 states and 1641 transitions. [2018-04-13 14:12:27,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-04-13 14:12:27,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1641 transitions. [2018-04-13 14:12:27,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2018-04-13 14:12:27,340 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:12:27,340 INFO L355 BasicCegarLoop]: trace histogram [86, 86, 85, 85, 85, 1, 1, 1, 1, 1, 1] [2018-04-13 14:12:27,341 INFO L408 AbstractCegarLoop]: === Iteration 86 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:12:27,341 INFO L82 PathProgramCache]: Analyzing trace with hash -605882346, 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 14:12:27,345 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:12:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:12:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:12:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 18105 backedges. 0 proven. 18105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:12:29,068 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:12:29,068 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2018-04-13 14:12:29,068 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:12:29,069 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 14:12:29,069 INFO L182 omatonBuilderFactory]: Interpolants [114465#false, 114464#true, 114469#(= main_~i~0 1), 114468#(= 0 main_~i~0), 114471#(= main_~i~0 3), 114470#(= 2 main_~i~0), 114473#(= main_~i~0 5), 114472#(= main_~i~0 4), 114475#(= main_~i~0 7), 114474#(= main_~i~0 6), 114477#(= main_~i~0 9), 114476#(= main_~i~0 8), 114479#(= main_~i~0 11), 114478#(= main_~i~0 10), 114481#(= main_~i~0 13), 114480#(= main_~i~0 12), 114483#(= main_~i~0 15), 114482#(= main_~i~0 14), 114485#(= main_~i~0 17), 114484#(= main_~i~0 16), 114487#(= main_~i~0 19), 114486#(= main_~i~0 18), 114489#(= main_~i~0 21), 114488#(= main_~i~0 20), 114491#(= main_~i~0 23), 114490#(= main_~i~0 22), 114493#(= main_~i~0 25), 114492#(= main_~i~0 24), 114495#(= main_~i~0 27), 114494#(= main_~i~0 26), 114497#(= main_~i~0 29), 114496#(= main_~i~0 28), 114499#(= main_~i~0 31), 114498#(= main_~i~0 30), 114501#(= main_~i~0 33), 114500#(= main_~i~0 32), 114503#(= main_~i~0 35), 114502#(= main_~i~0 34), 114505#(= main_~i~0 37), 114504#(= main_~i~0 36), 114507#(= main_~i~0 39), 114506#(= main_~i~0 38), 114509#(= main_~i~0 41), 114508#(= main_~i~0 40), 114511#(= main_~i~0 43), 114510#(= main_~i~0 42), 114513#(= main_~i~0 45), 114512#(= main_~i~0 44), 114515#(= main_~i~0 47), 114514#(= main_~i~0 46), 114517#(= main_~i~0 49), 114516#(= main_~i~0 48), 114519#(= main_~i~0 51), 114518#(= main_~i~0 50), 114521#(= main_~i~0 53), 114520#(= main_~i~0 52), 114523#(= main_~i~0 55), 114522#(= main_~i~0 54), 114525#(= main_~i~0 57), 114524#(= main_~i~0 56), 114527#(= main_~i~0 59), 114526#(= main_~i~0 58), 114529#(= main_~i~0 61), 114528#(= main_~i~0 60), 114531#(= main_~i~0 63), 114530#(= main_~i~0 62), 114533#(= main_~i~0 65), 114532#(= main_~i~0 64), 114535#(= main_~i~0 67), 114534#(= main_~i~0 66), 114537#(= main_~i~0 69), 114536#(= main_~i~0 68), 114539#(= main_~i~0 71), 114538#(= main_~i~0 70), 114541#(= main_~i~0 73), 114540#(= main_~i~0 72), 114543#(= main_~i~0 75), 114542#(= main_~i~0 74), 114545#(= main_~i~0 77), 114544#(= main_~i~0 76), 114547#(= main_~i~0 79), 114546#(= main_~i~0 78), 114549#(= main_~i~0 81), 114548#(= main_~i~0 80), 114551#(= main_~i~0 83), 114550#(= main_~i~0 82), 114553#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 114552#(= main_~i~0 84)] [2018-04-13 14:12:29,069 INFO L134 CoverageAnalysis]: Checked inductivity of 18105 backedges. 0 proven. 18105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:12:29,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-04-13 14:12:29,070 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-04-13 14:12:29,070 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=7398, Unknown=0, NotChecked=0, Total=7656 [2018-04-13 14:12:29,070 INFO L87 Difference]: Start difference. First operand 1216 states and 1641 transitions. Second operand 88 states. [2018-04-13 14:12:52,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 14:12:52,531 INFO L93 Difference]: Finished difference Result 1316 states and 1746 transitions. [2018-04-13 14:12:52,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-04-13 14:12:52,531 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 433 [2018-04-13 14:12:52,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 14:12:52,532 INFO L225 Difference]: With dead ends: 1316 [2018-04-13 14:12:52,532 INFO L226 Difference]: Without dead ends: 1316 [2018-04-13 14:12:52,532 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=258, Invalid=7398, Unknown=0, NotChecked=0, Total=7656 [2018-04-13 14:12:52,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2018-04-13 14:12:52,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1230. [2018-04-13 14:12:52,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1230 states. [2018-04-13 14:12:52,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1660 transitions. [2018-04-13 14:12:52,538 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1660 transitions. Word has length 433 [2018-04-13 14:12:52,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 14:12:52,539 INFO L459 AbstractCegarLoop]: Abstraction has 1230 states and 1660 transitions. [2018-04-13 14:12:52,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-04-13 14:12:52,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1660 transitions. [2018-04-13 14:12:52,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2018-04-13 14:12:52,540 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 14:12:52,541 INFO L355 BasicCegarLoop]: trace histogram [87, 87, 86, 86, 86, 1, 1, 1, 1, 1, 1] [2018-04-13 14:12:52,541 INFO L408 AbstractCegarLoop]: === Iteration 87 === [mainErr3AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-13 14:12:52,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1669045091, 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 14:12:52,543 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-13 14:12:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:12:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 14:12:54,291 INFO L134 CoverageAnalysis]: Checked inductivity of 18533 backedges. 0 proven. 18533 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:12:54,308 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 14:12:54,308 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [88] total 88 [2018-04-13 14:12:54,308 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-13 14:12:54,308 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 14:12:54,308 INFO L182 omatonBuilderFactory]: Interpolants [117121#(= main_~i~0 17), 117120#(= main_~i~0 16), 117123#(= main_~i~0 19), 117122#(= main_~i~0 18), 117125#(= main_~i~0 21), 117124#(= main_~i~0 20), 117127#(= main_~i~0 23), 117126#(= main_~i~0 22), 117129#(= main_~i~0 25), 117128#(= main_~i~0 24), 117131#(= main_~i~0 27), 117130#(= main_~i~0 26), 117133#(= main_~i~0 29), 117132#(= main_~i~0 28), 117135#(= main_~i~0 31), 117134#(= main_~i~0 30), 117137#(= main_~i~0 33), 117136#(= main_~i~0 32), 117139#(= main_~i~0 35), 117138#(= main_~i~0 34), 117141#(= main_~i~0 37), 117140#(= main_~i~0 36), 117143#(= main_~i~0 39), 117142#(= main_~i~0 38), 117145#(= main_~i~0 41), 117144#(= main_~i~0 40), 117147#(= main_~i~0 43), 117146#(= main_~i~0 42), 117149#(= main_~i~0 45), 117148#(= main_~i~0 44), 117151#(= main_~i~0 47), 117150#(= main_~i~0 46), 117153#(= main_~i~0 49), 117152#(= main_~i~0 48), 117155#(= main_~i~0 51), 117154#(= main_~i~0 50), 117157#(= main_~i~0 53), 117156#(= main_~i~0 52), 117159#(= main_~i~0 55), 117158#(= main_~i~0 54), 117161#(= main_~i~0 57), 117160#(= main_~i~0 56), 117163#(= main_~i~0 59), 117162#(= main_~i~0 58), 117165#(= main_~i~0 61), 117164#(= main_~i~0 60), 117167#(= main_~i~0 63), 117166#(= main_~i~0 62), 117169#(= main_~i~0 65), 117168#(= main_~i~0 64), 117171#(= main_~i~0 67), 117170#(= main_~i~0 66), 117173#(= main_~i~0 69), 117172#(= main_~i~0 68), 117175#(= main_~i~0 71), 117174#(= main_~i~0 70), 117177#(= main_~i~0 73), 117176#(= main_~i~0 72), 117179#(= main_~i~0 75), 117178#(= main_~i~0 74), 117181#(= main_~i~0 77), 117180#(= main_~i~0 76), 117183#(= main_~i~0 79), 117182#(= main_~i~0 78), 117185#(= main_~i~0 81), 117184#(= main_~i~0 80), 117187#(= main_~i~0 83), 117186#(= main_~i~0 82), 117189#(= main_~i~0 85), 117188#(= main_~i~0 84), 117190#(and (< main_~i~0 100000) (<= 0 main_~i~0)), 117101#false, 117100#true, 117105#(= main_~i~0 1), 117104#(= 0 main_~i~0), 117107#(= main_~i~0 3), 117106#(= 2 main_~i~0), 117109#(= main_~i~0 5), 117108#(= main_~i~0 4), 117111#(= main_~i~0 7), 117110#(= main_~i~0 6), 117113#(= main_~i~0 9), 117112#(= main_~i~0 8), 117115#(= main_~i~0 11), 117114#(= main_~i~0 10), 117117#(= main_~i~0 13), 117116#(= main_~i~0 12), 117119#(= main_~i~0 15), 117118#(= main_~i~0 14)] [2018-04-13 14:12:54,309 INFO L134 CoverageAnalysis]: Checked inductivity of 18533 backedges. 0 proven. 18533 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 14:12:54,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-04-13 14:12:54,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-04-13 14:12:54,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=7571, Unknown=0, NotChecked=0, Total=7832 [2018-04-13 14:12:54,310 INFO L87 Difference]: Start difference. First operand 1230 states and 1660 transitions. Second operand 89 states. Received shutdown request... [2018-04-13 14:13:04,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-13 14:13:04,768 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-13 14:13:04,771 WARN L197 ceAbstractionStarter]: Timeout [2018-04-13 14:13:04,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 02:13:04 BoogieIcfgContainer [2018-04-13 14:13:04,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-13 14:13:04,772 INFO L168 Benchmark]: Toolchain (without parser) took 753657.35 ms. Allocated memory was 404.2 MB in the beginning and 610.8 MB in the end (delta: 206.6 MB). Free memory was 341.2 MB in the beginning and 155.0 MB in the end (delta: 186.2 MB). Peak memory consumption was 392.8 MB. Max. memory is 5.3 GB. [2018-04-13 14:13:04,773 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 404.2 MB. Free memory is still 364.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-13 14:13:04,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.83 ms. Allocated memory is still 404.2 MB. Free memory was 341.2 MB in the beginning and 331.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. [2018-04-13 14:13:04,774 INFO L168 Benchmark]: Boogie Preprocessor took 27.74 ms. Allocated memory is still 404.2 MB. Free memory was 331.9 MB in the beginning and 329.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-13 14:13:04,774 INFO L168 Benchmark]: RCFGBuilder took 190.84 ms. Allocated memory was 404.2 MB in the beginning and 611.3 MB in the end (delta: 207.1 MB). Free memory was 329.3 MB in the beginning and 575.8 MB in the end (delta: -246.6 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-04-13 14:13:04,774 INFO L168 Benchmark]: TraceAbstraction took 753255.95 ms. Allocated memory was 611.3 MB in the beginning and 610.8 MB in the end (delta: -524.3 kB). Free memory was 575.8 MB in the beginning and 155.0 MB in the end (delta: 420.9 MB). Peak memory consumption was 420.4 MB. Max. memory is 5.3 GB. [2018-04-13 14:13:04,776 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 404.2 MB. Free memory is still 364.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 179.83 ms. Allocated memory is still 404.2 MB. Free memory was 341.2 MB in the beginning and 331.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.74 ms. Allocated memory is still 404.2 MB. Free memory was 331.9 MB in the beginning and 329.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 190.84 ms. Allocated memory was 404.2 MB in the beginning and 611.3 MB in the end (delta: 207.1 MB). Free memory was 329.3 MB in the beginning and 575.8 MB in the end (delta: -246.6 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 753255.95 ms. Allocated memory was 611.3 MB in the beginning and 610.8 MB in the end (delta: -524.3 kB). Free memory was 575.8 MB in the beginning and 155.0 MB in the end (delta: 420.9 MB). Peak memory consumption was 420.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 26]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 26). Cancelled while BasicCegarLoop was constructing difference of abstraction (1230states) and interpolant automaton (currently 44 states, 89 states before enhancement), while ReachableStatesComputation was computing reachable states (629 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 19). Cancelled while BasicCegarLoop was constructing difference of abstraction (1230states) and interpolant automaton (currently 44 states, 89 states before enhancement), while ReachableStatesComputation was computing reachable states (629 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 24]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 24). Cancelled while BasicCegarLoop was constructing difference of abstraction (1230states) and interpolant automaton (currently 44 states, 89 states before enhancement), while ReachableStatesComputation was computing reachable states (629 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 17]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 17). Cancelled while BasicCegarLoop was constructing difference of abstraction (1230states) and interpolant automaton (currently 44 states, 89 states before enhancement), while ReachableStatesComputation was computing reachable states (629 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 42 locations, 4 error locations. TIMEOUT Result, 753.2s OverallTime, 87 OverallIterations, 87 TraceHistogramMax, 695.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27535 SDtfs, 52899 SDslu, 743398 SDs, 0 SdLazy, 3388226 SolverSat, 17658 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 553.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4089 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 3828 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1230occurred in iteration=86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/541198 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 86 MinimizatonAttempts, 3741 StatesRemovedByMinimization, 86 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 51.6s InterpolantComputationTime, 19401 NumberOfCodeBlocks, 19401 NumberOfCodeBlocksAsserted, 87 NumberOfCheckSat, 19314 ConstructedInterpolants, 0 QuantifiedInterpolants, 17055480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 87 InterpolantComputations, 1 PerfectInterpolantSequences, 0/541198 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/sanfoundry_24_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-13_14-13-04-781.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sanfoundry_24_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-13_14-13-04-781.csv Completed graceful shutdown