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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/list-properties/alternating_list_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 19:41:01,318 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 19:41:01,319 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 19:41:01,337 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 19:41:01,337 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 19:41:01,338 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 19:41:01,339 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 19:41:01,340 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 19:41:01,342 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 19:41:01,343 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 19:41:01,344 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 19:41:01,344 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 19:41:01,345 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 19:41:01,346 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 19:41:01,347 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 19:41:01,348 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 19:41:01,350 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 19:41:01,352 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 19:41:01,353 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 19:41:01,354 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 19:41:01,356 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 19:41:01,356 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 19:41:01,357 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 19:41:01,358 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 19:41:01,359 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 19:41:01,360 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 19:41:01,360 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 19:41:01,361 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 19:41:01,361 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 19:41:01,361 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 19:41:01,361 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 19:41:01,362 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 19:41:01,374 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 19:41:01,375 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 19:41:01,376 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 19:41:01,376 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 19:41:01,377 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 19:41:01,377 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 19:41:01,377 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 19:41:01,377 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 19:41:01,377 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 19:41:01,378 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 19:41:01,378 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 19:41:01,378 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 19:41:01,378 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 19:41:01,378 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 19:41:01,378 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 19:41:01,379 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 19:41:01,379 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 19:41:01,379 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 19:41:01,379 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 19:41:01,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 19:41:01,379 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 19:41:01,380 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 19:41:01,380 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 19:41:01,380 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 19:41:01,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 19:41:01,416 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 19:41:01,420 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 19:41:01,421 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 19:41:01,421 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 19:41:01,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/alternating_list_true-unreach-call_true-valid-memsafety.i [2018-02-04 19:41:01,583 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 19:41:01,584 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 19:41:01,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 19:41:01,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 19:41:01,590 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 19:41:01,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 07:41:01" (1/1) ... [2018-02-04 19:41:01,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bbec137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:41:01, skipping insertion in model container [2018-02-04 19:41:01,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 07:41:01" (1/1) ... [2018-02-04 19:41:01,608 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 19:41:01,639 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 19:41:01,730 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 19:41:01,746 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 19:41:01,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:41:01 WrapperNode [2018-02-04 19:41:01,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 19:41:01,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 19:41:01,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 19:41:01,754 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 19:41:01,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:41:01" (1/1) ... [2018-02-04 19:41:01,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:41:01" (1/1) ... [2018-02-04 19:41:01,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:41:01" (1/1) ... [2018-02-04 19:41:01,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:41:01" (1/1) ... [2018-02-04 19:41:01,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:41:01" (1/1) ... [2018-02-04 19:41:01,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:41:01" (1/1) ... [2018-02-04 19:41:01,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:41:01" (1/1) ... [2018-02-04 19:41:01,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 19:41:01,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 19:41:01,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 19:41:01,787 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 19:41:01,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:41:01" (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 [2018-02-04 19:41:01,829 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 19:41:01,830 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 19:41:01,830 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-02-04 19:41:01,830 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 19:41:01,830 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 19:41:01,830 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 19:41:01,830 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 19:41:01,830 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 19:41:01,830 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 19:41:01,831 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 19:41:01,831 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 19:41:01,831 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-04 19:41:01,831 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 19:41:01,831 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 19:41:01,831 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 19:41:01,831 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-02-04 19:41:01,831 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 19:41:01,831 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 19:41:01,832 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 19:41:02,172 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 19:41:02,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 07:41:02 BoogieIcfgContainer [2018-02-04 19:41:02,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 19:41:02,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 19:41:02,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 19:41:02,176 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 19:41:02,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 07:41:01" (1/3) ... [2018-02-04 19:41:02,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a78b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 07:41:02, skipping insertion in model container [2018-02-04 19:41:02,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:41:01" (2/3) ... [2018-02-04 19:41:02,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a78b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 07:41:02, skipping insertion in model container [2018-02-04 19:41:02,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 07:41:02" (3/3) ... [2018-02-04 19:41:02,180 INFO L107 eAbstractionObserver]: Analyzing ICFG alternating_list_true-unreach-call_true-valid-memsafety.i [2018-02-04 19:41:02,188 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 19:41:02,194 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 27 error locations. [2018-02-04 19:41:02,228 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 19:41:02,228 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 19:41:02,228 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 19:41:02,228 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 19:41:02,228 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 19:41:02,229 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 19:41:02,229 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 19:41:02,229 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 19:41:02,230 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 19:41:02,243 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2018-02-04 19:41:02,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-04 19:41:02,252 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:02,253 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:02,253 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:02,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1444354772, now seen corresponding path program 1 times [2018-02-04 19:41:02,259 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:02,260 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:02,303 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:02,303 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:02,303 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:02,337 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:02,364 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:02,365 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 19:41:02,366 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-04 19:41:02,374 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-04 19:41:02,374 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-04 19:41:02,376 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2018-02-04 19:41:02,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:02,466 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2018-02-04 19:41:02,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-04 19:41:02,467 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-02-04 19:41:02,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:02,473 INFO L225 Difference]: With dead ends: 81 [2018-02-04 19:41:02,474 INFO L226 Difference]: Without dead ends: 73 [2018-02-04 19:41:02,475 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-04 19:41:02,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-02-04 19:41:02,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-02-04 19:41:02,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-02-04 19:41:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2018-02-04 19:41:02,499 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 12 [2018-02-04 19:41:02,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:02,500 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2018-02-04 19:41:02,500 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-04 19:41:02,500 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2018-02-04 19:41:02,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 19:41:02,500 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:02,500 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:02,501 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:02,501 INFO L82 PathProgramCache]: Analyzing trace with hash 749299640, now seen corresponding path program 1 times [2018-02-04 19:41:02,501 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:02,501 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:02,502 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:02,502 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:02,502 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:02,511 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:02,551 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:02,551 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 19:41:02,552 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 19:41:02,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 19:41:02,553 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 19:41:02,553 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand 5 states. [2018-02-04 19:41:02,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:02,668 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2018-02-04 19:41:02,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 19:41:02,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 19:41:02,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:02,669 INFO L225 Difference]: With dead ends: 91 [2018-02-04 19:41:02,669 INFO L226 Difference]: Without dead ends: 91 [2018-02-04 19:41:02,670 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:41:02,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-02-04 19:41:02,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 77. [2018-02-04 19:41:02,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-02-04 19:41:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2018-02-04 19:41:02,674 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 14 [2018-02-04 19:41:02,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:02,674 INFO L432 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2018-02-04 19:41:02,674 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 19:41:02,674 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2018-02-04 19:41:02,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 19:41:02,674 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:02,674 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:02,674 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:02,675 INFO L82 PathProgramCache]: Analyzing trace with hash 749299641, now seen corresponding path program 1 times [2018-02-04 19:41:02,675 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:02,675 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:02,675 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:02,675 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:02,676 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:02,685 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:02,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:02,732 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:02,732 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 19:41:02,732 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 19:41:02,732 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 19:41:02,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 19:41:02,733 INFO L87 Difference]: Start difference. First operand 77 states and 88 transitions. Second operand 5 states. [2018-02-04 19:41:02,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:02,921 INFO L93 Difference]: Finished difference Result 102 states and 110 transitions. [2018-02-04 19:41:02,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 19:41:02,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 19:41:02,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:02,922 INFO L225 Difference]: With dead ends: 102 [2018-02-04 19:41:02,922 INFO L226 Difference]: Without dead ends: 102 [2018-02-04 19:41:02,922 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:41:02,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-02-04 19:41:02,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 94. [2018-02-04 19:41:02,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-02-04 19:41:02,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 103 transitions. [2018-02-04 19:41:02,927 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 103 transitions. Word has length 14 [2018-02-04 19:41:02,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:02,927 INFO L432 AbstractCegarLoop]: Abstraction has 94 states and 103 transitions. [2018-02-04 19:41:02,927 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 19:41:02,927 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 103 transitions. [2018-02-04 19:41:02,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 19:41:02,928 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:02,928 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:02,928 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:02,928 INFO L82 PathProgramCache]: Analyzing trace with hash 129960215, now seen corresponding path program 1 times [2018-02-04 19:41:02,928 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:02,928 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:02,929 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:02,929 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:02,929 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:02,942 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:02,948 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:02,949 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:02,949 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:02,950 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:02,989 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:03,048 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~p~0.base Int)) (and (= 0 (select |c_old(#valid)| main_~p~0.base)) (= (store |c_old(#valid)| main_~p~0.base 0) |c_#valid|) (not (= 0 main_~p~0.base)))) is different from true [2018-02-04 19:41:03,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:03,053 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:03,053 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 19:41:03,054 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 19:41:03,054 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 19:41:03,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=32, Unknown=1, NotChecked=10, Total=56 [2018-02-04 19:41:03,054 INFO L87 Difference]: Start difference. First operand 94 states and 103 transitions. Second operand 8 states. [2018-02-04 19:41:03,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:03,307 INFO L93 Difference]: Finished difference Result 133 states and 146 transitions. [2018-02-04 19:41:03,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 19:41:03,309 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-02-04 19:41:03,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:03,310 INFO L225 Difference]: With dead ends: 133 [2018-02-04 19:41:03,310 INFO L226 Difference]: Without dead ends: 130 [2018-02-04 19:41:03,311 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=78, Unknown=2, NotChecked=18, Total=132 [2018-02-04 19:41:03,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-02-04 19:41:03,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 118. [2018-02-04 19:41:03,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-02-04 19:41:03,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 136 transitions. [2018-02-04 19:41:03,317 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 136 transitions. Word has length 25 [2018-02-04 19:41:03,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:03,318 INFO L432 AbstractCegarLoop]: Abstraction has 118 states and 136 transitions. [2018-02-04 19:41:03,318 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 19:41:03,318 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 136 transitions. [2018-02-04 19:41:03,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 19:41:03,318 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:03,319 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:03,319 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:03,319 INFO L82 PathProgramCache]: Analyzing trace with hash 130009866, now seen corresponding path program 1 times [2018-02-04 19:41:03,319 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:03,319 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:03,320 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,320 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:03,320 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:03,331 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:03,380 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:03,380 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 19:41:03,381 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 19:41:03,381 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 19:41:03,381 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 19:41:03,381 INFO L87 Difference]: Start difference. First operand 118 states and 136 transitions. Second operand 6 states. [2018-02-04 19:41:03,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:03,461 INFO L93 Difference]: Finished difference Result 129 states and 146 transitions. [2018-02-04 19:41:03,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 19:41:03,462 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-02-04 19:41:03,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:03,463 INFO L225 Difference]: With dead ends: 129 [2018-02-04 19:41:03,463 INFO L226 Difference]: Without dead ends: 129 [2018-02-04 19:41:03,463 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-02-04 19:41:03,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-02-04 19:41:03,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 120. [2018-02-04 19:41:03,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-02-04 19:41:03,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2018-02-04 19:41:03,469 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 25 [2018-02-04 19:41:03,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:03,469 INFO L432 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2018-02-04 19:41:03,469 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 19:41:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2018-02-04 19:41:03,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 19:41:03,470 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:03,470 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:03,470 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:03,471 INFO L82 PathProgramCache]: Analyzing trace with hash 130009867, now seen corresponding path program 1 times [2018-02-04 19:41:03,471 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:03,471 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:03,472 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,472 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:03,472 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:03,482 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:03,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:03,525 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:03,525 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 19:41:03,525 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 19:41:03,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 19:41:03,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 19:41:03,526 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 6 states. [2018-02-04 19:41:03,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:03,617 INFO L93 Difference]: Finished difference Result 127 states and 144 transitions. [2018-02-04 19:41:03,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 19:41:03,617 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-02-04 19:41:03,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:03,618 INFO L225 Difference]: With dead ends: 127 [2018-02-04 19:41:03,618 INFO L226 Difference]: Without dead ends: 127 [2018-02-04 19:41:03,618 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-02-04 19:41:03,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-02-04 19:41:03,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 119. [2018-02-04 19:41:03,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-02-04 19:41:03,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2018-02-04 19:41:03,622 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 25 [2018-02-04 19:41:03,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:03,622 INFO L432 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2018-02-04 19:41:03,622 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 19:41:03,622 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2018-02-04 19:41:03,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 19:41:03,623 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:03,623 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:03,623 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:03,623 INFO L82 PathProgramCache]: Analyzing trace with hash 825919103, now seen corresponding path program 1 times [2018-02-04 19:41:03,623 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:03,623 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:03,623 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,624 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:03,624 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:03,631 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:03,648 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:03,648 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 19:41:03,649 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 19:41:03,649 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 19:41:03,649 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 19:41:03,649 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 3 states. [2018-02-04 19:41:03,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:03,654 INFO L93 Difference]: Finished difference Result 175 states and 197 transitions. [2018-02-04 19:41:03,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 19:41:03,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-02-04 19:41:03,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:03,655 INFO L225 Difference]: With dead ends: 175 [2018-02-04 19:41:03,655 INFO L226 Difference]: Without dead ends: 175 [2018-02-04 19:41:03,656 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 19:41:03,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-02-04 19:41:03,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 135. [2018-02-04 19:41:03,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-02-04 19:41:03,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 161 transitions. [2018-02-04 19:41:03,662 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 161 transitions. Word has length 25 [2018-02-04 19:41:03,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:03,662 INFO L432 AbstractCegarLoop]: Abstraction has 135 states and 161 transitions. [2018-02-04 19:41:03,662 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 19:41:03,662 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 161 transitions. [2018-02-04 19:41:03,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 19:41:03,663 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:03,663 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:03,663 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:03,663 INFO L82 PathProgramCache]: Analyzing trace with hash 245290165, now seen corresponding path program 1 times [2018-02-04 19:41:03,663 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:03,663 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:03,664 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,664 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:03,664 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:03,672 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:03,703 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:03,703 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 19:41:03,703 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 19:41:03,703 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 19:41:03,703 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 19:41:03,703 INFO L87 Difference]: Start difference. First operand 135 states and 161 transitions. Second operand 6 states. [2018-02-04 19:41:03,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:03,797 INFO L93 Difference]: Finished difference Result 139 states and 152 transitions. [2018-02-04 19:41:03,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 19:41:03,797 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-02-04 19:41:03,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:03,798 INFO L225 Difference]: With dead ends: 139 [2018-02-04 19:41:03,798 INFO L226 Difference]: Without dead ends: 139 [2018-02-04 19:41:03,798 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-02-04 19:41:03,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-02-04 19:41:03,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 115. [2018-02-04 19:41:03,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-02-04 19:41:03,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 129 transitions. [2018-02-04 19:41:03,801 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 129 transitions. Word has length 25 [2018-02-04 19:41:03,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:03,801 INFO L432 AbstractCegarLoop]: Abstraction has 115 states and 129 transitions. [2018-02-04 19:41:03,801 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 19:41:03,801 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 129 transitions. [2018-02-04 19:41:03,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-04 19:41:03,802 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:03,802 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:03,802 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:03,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1978391014, now seen corresponding path program 1 times [2018-02-04 19:41:03,802 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:03,802 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:03,803 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,803 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:03,803 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:03,810 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:03,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:03,849 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:03,849 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 19:41:03,849 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 19:41:03,850 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 19:41:03,850 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:41:03,850 INFO L87 Difference]: Start difference. First operand 115 states and 129 transitions. Second operand 7 states. [2018-02-04 19:41:03,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:03,965 INFO L93 Difference]: Finished difference Result 115 states and 129 transitions. [2018-02-04 19:41:03,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 19:41:03,966 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-02-04 19:41:03,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:03,966 INFO L225 Difference]: With dead ends: 115 [2018-02-04 19:41:03,967 INFO L226 Difference]: Without dead ends: 115 [2018-02-04 19:41:03,967 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-02-04 19:41:03,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-02-04 19:41:03,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 112. [2018-02-04 19:41:03,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-02-04 19:41:03,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 126 transitions. [2018-02-04 19:41:03,970 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 126 transitions. Word has length 26 [2018-02-04 19:41:03,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:03,971 INFO L432 AbstractCegarLoop]: Abstraction has 112 states and 126 transitions. [2018-02-04 19:41:03,971 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 19:41:03,971 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 126 transitions. [2018-02-04 19:41:03,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-04 19:41:03,972 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:03,972 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:03,972 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:03,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1978391015, now seen corresponding path program 1 times [2018-02-04 19:41:03,972 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:03,972 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:03,973 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,973 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:03,973 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:03,981 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:04,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:04,035 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:04,035 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 19:41:04,035 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 19:41:04,035 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 19:41:04,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:41:04,036 INFO L87 Difference]: Start difference. First operand 112 states and 126 transitions. Second operand 7 states. [2018-02-04 19:41:04,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:04,174 INFO L93 Difference]: Finished difference Result 126 states and 138 transitions. [2018-02-04 19:41:04,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 19:41:04,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-02-04 19:41:04,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:04,174 INFO L225 Difference]: With dead ends: 126 [2018-02-04 19:41:04,175 INFO L226 Difference]: Without dead ends: 126 [2018-02-04 19:41:04,175 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-02-04 19:41:04,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-02-04 19:41:04,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 99. [2018-02-04 19:41:04,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-02-04 19:41:04,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2018-02-04 19:41:04,178 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 26 [2018-02-04 19:41:04,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:04,178 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2018-02-04 19:41:04,178 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 19:41:04,178 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2018-02-04 19:41:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-04 19:41:04,179 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:04,179 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:04,179 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:04,179 INFO L82 PathProgramCache]: Analyzing trace with hash 385432044, now seen corresponding path program 1 times [2018-02-04 19:41:04,179 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:04,179 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:04,180 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:04,180 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:04,180 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:04,187 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:04,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:04,218 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:04,218 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 19:41:04,218 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 19:41:04,218 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 19:41:04,218 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:41:04,219 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 7 states. [2018-02-04 19:41:04,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:04,326 INFO L93 Difference]: Finished difference Result 120 states and 129 transitions. [2018-02-04 19:41:04,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 19:41:04,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-02-04 19:41:04,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:04,327 INFO L225 Difference]: With dead ends: 120 [2018-02-04 19:41:04,328 INFO L226 Difference]: Without dead ends: 111 [2018-02-04 19:41:04,328 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-02-04 19:41:04,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-02-04 19:41:04,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 94. [2018-02-04 19:41:04,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-02-04 19:41:04,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2018-02-04 19:41:04,330 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 27 [2018-02-04 19:41:04,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:04,330 INFO L432 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2018-02-04 19:41:04,331 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 19:41:04,331 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2018-02-04 19:41:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-02-04 19:41:04,331 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:04,332 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:04,335 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:04,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1053625897, now seen corresponding path program 1 times [2018-02-04 19:41:04,335 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:04,335 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:04,336 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:04,336 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:04,336 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:04,346 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:04,350 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:04,350 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:04,350 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:04,351 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:04,385 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:04,400 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:04,401 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:04,406 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,410 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-02-04 19:41:04,429 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-02-04 19:41:04,431 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:41:04,431 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,434 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,441 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,441 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2018-02-04 19:41:04,454 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:04,457 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:41:04,458 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,467 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:04,468 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:04,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:41:04,469 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,475 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,475 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:31 [2018-02-04 19:41:04,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-02-04 19:41:04,503 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:04,517 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:04,518 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,519 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2018-02-04 19:41:04,546 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:04,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 19:41:04,548 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,550 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,557 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:70, output treesize:30 [2018-02-04 19:41:04,572 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-02-04 19:41:04,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-02-04 19:41:04,574 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,575 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,582 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:04,582 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:21 [2018-02-04 19:41:04,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 19:41:04,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:41:04,618 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,621 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,626 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:04,626 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:28 [2018-02-04 19:41:04,670 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-02-04 19:41:04,672 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:04,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-02-04 19:41:04,673 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 19:41:04,677 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,678 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,682 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:04,682 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:38, output treesize:3 [2018-02-04 19:41:04,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:04,693 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:04,694 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-02-04 19:41:04,694 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-04 19:41:04,694 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-04 19:41:04,694 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-02-04 19:41:04,694 INFO L87 Difference]: Start difference. First operand 94 states and 105 transitions. Second operand 14 states. [2018-02-04 19:41:05,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:05,411 INFO L93 Difference]: Finished difference Result 181 states and 200 transitions. [2018-02-04 19:41:05,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 19:41:05,412 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2018-02-04 19:41:05,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:05,413 INFO L225 Difference]: With dead ends: 181 [2018-02-04 19:41:05,413 INFO L226 Difference]: Without dead ends: 181 [2018-02-04 19:41:05,413 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-02-04 19:41:05,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-02-04 19:41:05,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 111. [2018-02-04 19:41:05,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-02-04 19:41:05,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 123 transitions. [2018-02-04 19:41:05,416 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 123 transitions. Word has length 37 [2018-02-04 19:41:05,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:05,416 INFO L432 AbstractCegarLoop]: Abstraction has 111 states and 123 transitions. [2018-02-04 19:41:05,416 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-04 19:41:05,416 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 123 transitions. [2018-02-04 19:41:05,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-02-04 19:41:05,417 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:05,417 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:05,417 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:05,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1168955847, now seen corresponding path program 1 times [2018-02-04 19:41:05,417 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:05,417 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:05,418 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:05,418 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:05,418 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:05,427 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:05,432 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:05,432 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:05,432 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:05,433 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:05,461 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:05,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:05,463 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,464 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,465 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-02-04 19:41:05,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-02-04 19:41:05,493 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:05,501 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,508 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,508 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:25 [2018-02-04 19:41:05,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:05,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:05,549 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,551 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,565 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:05,570 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:05,570 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,571 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,579 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,579 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:50 [2018-02-04 19:41:05,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:41:05,599 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-02-04 19:41:05,599 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,600 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,606 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:05,606 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:56, output treesize:41 [2018-02-04 19:41:05,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 48 [2018-02-04 19:41:05,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2018-02-04 19:41:05,683 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,699 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,714 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-02-04 19:41:05,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:41:05,717 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,719 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,730 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:05,731 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:70, output treesize:51 [2018-02-04 19:41:05,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2018-02-04 19:41:05,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-02-04 19:41:05,831 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2018-02-04 19:41:05,842 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:41:05,856 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:05,861 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-02-04 19:41:05,879 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-02-04 19:41:05,879 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:61, output treesize:136 [2018-02-04 19:41:05,926 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 7 [2018-02-04 19:41:05,927 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-02-04 19:41:05,954 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:05,955 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-02-04 19:41:05,955 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,958 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,965 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:05,965 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:57, output treesize:5 [2018-02-04 19:41:06,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:06,002 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:06,002 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-02-04 19:41:06,003 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-02-04 19:41:06,003 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-02-04 19:41:06,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-02-04 19:41:06,003 INFO L87 Difference]: Start difference. First operand 111 states and 123 transitions. Second operand 17 states. [2018-02-04 19:41:06,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:06,661 INFO L93 Difference]: Finished difference Result 165 states and 184 transitions. [2018-02-04 19:41:06,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-02-04 19:41:06,661 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 37 [2018-02-04 19:41:06,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:06,662 INFO L225 Difference]: With dead ends: 165 [2018-02-04 19:41:06,662 INFO L226 Difference]: Without dead ends: 165 [2018-02-04 19:41:06,662 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2018-02-04 19:41:06,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-02-04 19:41:06,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 118. [2018-02-04 19:41:06,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-02-04 19:41:06,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 131 transitions. [2018-02-04 19:41:06,664 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 131 transitions. Word has length 37 [2018-02-04 19:41:06,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:06,664 INFO L432 AbstractCegarLoop]: Abstraction has 118 states and 131 transitions. [2018-02-04 19:41:06,664 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-02-04 19:41:06,664 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 131 transitions. [2018-02-04 19:41:06,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-02-04 19:41:06,665 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:06,665 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:06,665 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:06,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1168955848, now seen corresponding path program 1 times [2018-02-04 19:41:06,665 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:06,665 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:06,665 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:06,665 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:06,666 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:06,674 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:06,685 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:06,685 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:06,685 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:06,686 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:06,710 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:06,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:06,726 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:06,729 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,731 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,731 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-02-04 19:41:06,750 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:06,751 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:06,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:41:06,752 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:41:06,759 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,764 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-02-04 19:41:06,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:06,789 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:06,790 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,791 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,800 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:06,801 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:06,801 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,802 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,809 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:54, output treesize:49 [2018-02-04 19:41:06,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2018-02-04 19:41:06,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-02-04 19:41:06,859 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,862 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-02-04 19:41:06,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-02-04 19:41:06,875 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,877 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,882 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:06,883 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:112, output treesize:46 [2018-02-04 19:41:06,945 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-02-04 19:41:06,947 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:06,947 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2018-02-04 19:41:06,948 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,951 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,960 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:41:06,962 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:06,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:41:06,962 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,967 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:06,974 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:06,974 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:74, output treesize:23 [2018-02-04 19:41:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:07,013 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:07,013 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-02-04 19:41:07,013 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-04 19:41:07,013 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-04 19:41:07,014 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2018-02-04 19:41:07,014 INFO L87 Difference]: Start difference. First operand 118 states and 131 transitions. Second operand 16 states. [2018-02-04 19:41:07,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:07,646 INFO L93 Difference]: Finished difference Result 205 states and 229 transitions. [2018-02-04 19:41:07,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-02-04 19:41:07,647 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2018-02-04 19:41:07,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:07,647 INFO L225 Difference]: With dead ends: 205 [2018-02-04 19:41:07,647 INFO L226 Difference]: Without dead ends: 205 [2018-02-04 19:41:07,648 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2018-02-04 19:41:07,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-02-04 19:41:07,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 123. [2018-02-04 19:41:07,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-02-04 19:41:07,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 137 transitions. [2018-02-04 19:41:07,651 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 137 transitions. Word has length 37 [2018-02-04 19:41:07,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:07,651 INFO L432 AbstractCegarLoop]: Abstraction has 123 states and 137 transitions. [2018-02-04 19:41:07,651 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-04 19:41:07,651 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 137 transitions. [2018-02-04 19:41:07,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-02-04 19:41:07,652 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:07,652 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:07,652 INFO L371 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:07,652 INFO L82 PathProgramCache]: Analyzing trace with hash 545105784, now seen corresponding path program 1 times [2018-02-04 19:41:07,652 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:07,652 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:07,653 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:07,653 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:07,653 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:07,660 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 19:41:07,705 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:07,705 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:07,705 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:07,729 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:07,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:41:07,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:41:07,821 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:07,823 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:41:07,827 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:41:07,827 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:21 [2018-02-04 19:41:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 19:41:07,852 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 19:41:07,852 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2018-02-04 19:41:07,852 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-02-04 19:41:07,852 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-02-04 19:41:07,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2018-02-04 19:41:07,853 INFO L87 Difference]: Start difference. First operand 123 states and 137 transitions. Second operand 17 states. [2018-02-04 19:41:08,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:08,151 INFO L93 Difference]: Finished difference Result 143 states and 156 transitions. [2018-02-04 19:41:08,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-02-04 19:41:08,151 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 45 [2018-02-04 19:41:08,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:08,152 INFO L225 Difference]: With dead ends: 143 [2018-02-04 19:41:08,152 INFO L226 Difference]: Without dead ends: 143 [2018-02-04 19:41:08,152 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2018-02-04 19:41:08,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-02-04 19:41:08,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 123. [2018-02-04 19:41:08,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-02-04 19:41:08,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2018-02-04 19:41:08,155 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 45 [2018-02-04 19:41:08,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:08,155 INFO L432 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2018-02-04 19:41:08,155 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-02-04 19:41:08,155 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2018-02-04 19:41:08,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-02-04 19:41:08,155 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:08,156 INFO L351 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:08,156 INFO L371 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:08,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1241064672, now seen corresponding path program 1 times [2018-02-04 19:41:08,156 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:08,156 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:08,157 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:08,157 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:08,157 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:08,166 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:08,173 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:08,173 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:08,174 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:08,174 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:08,203 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:08,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:08,207 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:08,212 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,216 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,216 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-02-04 19:41:08,240 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:08,241 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:08,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:41:08,242 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:41:08,254 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,261 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,261 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-02-04 19:41:08,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:08,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:08,295 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,297 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:08,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:08,310 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,311 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,328 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,328 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:47, output treesize:42 [2018-02-04 19:41:08,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:41:08,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-02-04 19:41:08,343 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,344 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,349 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,349 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:44, output treesize:33 [2018-02-04 19:41:08,388 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2018-02-04 19:41:08,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-02-04 19:41:08,389 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,391 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-02-04 19:41:08,403 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2018-02-04 19:41:08,403 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,406 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,412 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:08,412 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:75, output treesize:40 [2018-02-04 19:41:08,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2018-02-04 19:41:08,465 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:08,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2018-02-04 19:41:08,466 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:08,477 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:08,477 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:59, output treesize:33 [2018-02-04 19:41:08,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:41:08,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:41:08,562 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:08,565 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:41:08,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:08,573 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:49 [2018-02-04 19:41:08,654 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:08,654 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:08,654 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-04 19:41:08,654 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-04 19:41:08,655 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-04 19:41:08,655 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2018-02-04 19:41:08,655 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand 18 states. [2018-02-04 19:41:09,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:09,461 INFO L93 Difference]: Finished difference Result 189 states and 208 transitions. [2018-02-04 19:41:09,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-02-04 19:41:09,461 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 45 [2018-02-04 19:41:09,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:09,462 INFO L225 Difference]: With dead ends: 189 [2018-02-04 19:41:09,462 INFO L226 Difference]: Without dead ends: 186 [2018-02-04 19:41:09,462 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=873, Unknown=0, NotChecked=0, Total=1056 [2018-02-04 19:41:09,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-02-04 19:41:09,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 119. [2018-02-04 19:41:09,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-02-04 19:41:09,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 131 transitions. [2018-02-04 19:41:09,464 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 131 transitions. Word has length 45 [2018-02-04 19:41:09,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:09,464 INFO L432 AbstractCegarLoop]: Abstraction has 119 states and 131 transitions. [2018-02-04 19:41:09,464 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-04 19:41:09,464 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 131 transitions. [2018-02-04 19:41:09,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-02-04 19:41:09,465 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:09,465 INFO L351 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:09,465 INFO L371 AbstractCegarLoop]: === Iteration 17 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:09,465 INFO L82 PathProgramCache]: Analyzing trace with hash 660435734, now seen corresponding path program 2 times [2018-02-04 19:41:09,465 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:09,465 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:09,465 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:09,465 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:09,465 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:09,470 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:09,480 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 19:41:09,480 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:41:09,480 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 19:41:09,481 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 19:41:09,481 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 19:41:09,481 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 19:41:09,481 INFO L87 Difference]: Start difference. First operand 119 states and 131 transitions. Second operand 3 states. [2018-02-04 19:41:09,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:09,486 INFO L93 Difference]: Finished difference Result 147 states and 153 transitions. [2018-02-04 19:41:09,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 19:41:09,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-02-04 19:41:09,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:09,487 INFO L225 Difference]: With dead ends: 147 [2018-02-04 19:41:09,487 INFO L226 Difference]: Without dead ends: 146 [2018-02-04 19:41:09,487 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 19:41:09,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-02-04 19:41:09,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 119. [2018-02-04 19:41:09,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-02-04 19:41:09,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 128 transitions. [2018-02-04 19:41:09,488 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 128 transitions. Word has length 45 [2018-02-04 19:41:09,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:09,489 INFO L432 AbstractCegarLoop]: Abstraction has 119 states and 128 transitions. [2018-02-04 19:41:09,489 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 19:41:09,489 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 128 transitions. [2018-02-04 19:41:09,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-02-04 19:41:09,489 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:09,489 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:09,489 INFO L371 AbstractCegarLoop]: === Iteration 18 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:09,489 INFO L82 PathProgramCache]: Analyzing trace with hash -91634675, now seen corresponding path program 1 times [2018-02-04 19:41:09,489 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:09,489 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:09,490 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:09,490 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:41:09,490 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:09,495 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:09,497 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:09,497 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:09,497 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:09,497 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:09,518 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:09,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:09,536 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:09,542 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,558 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-02-04 19:41:09,600 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:09,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:41:09,601 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,611 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:09,612 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:09,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-02-04 19:41:09,612 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,620 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,620 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:35 [2018-02-04 19:41:09,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-02-04 19:41:09,648 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:09,660 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:09,660 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,662 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,674 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,698 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:55, output treesize:40 [2018-02-04 19:41:09,750 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 49 [2018-02-04 19:41:09,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-02-04 19:41:09,753 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,756 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,761 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:09,762 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:37 [2018-02-04 19:41:09,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-02-04 19:41:09,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2018-02-04 19:41:09,885 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:09,895 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:09,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:09,911 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:52, output treesize:48 [2018-02-04 19:41:09,983 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:09,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 19:41:09,984 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:09,994 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:09,994 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:15 [2018-02-04 19:41:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 19:41:10,029 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:10,029 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-04 19:41:10,029 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-04 19:41:10,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-04 19:41:10,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2018-02-04 19:41:10,029 INFO L87 Difference]: Start difference. First operand 119 states and 128 transitions. Second operand 19 states. [2018-02-04 19:41:10,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:10,823 INFO L93 Difference]: Finished difference Result 151 states and 162 transitions. [2018-02-04 19:41:10,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-04 19:41:10,823 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 47 [2018-02-04 19:41:10,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:10,824 INFO L225 Difference]: With dead ends: 151 [2018-02-04 19:41:10,824 INFO L226 Difference]: Without dead ends: 151 [2018-02-04 19:41:10,824 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=216, Invalid=776, Unknown=0, NotChecked=0, Total=992 [2018-02-04 19:41:10,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-02-04 19:41:10,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 128. [2018-02-04 19:41:10,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-02-04 19:41:10,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 138 transitions. [2018-02-04 19:41:10,826 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 138 transitions. Word has length 47 [2018-02-04 19:41:10,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:10,826 INFO L432 AbstractCegarLoop]: Abstraction has 128 states and 138 transitions. [2018-02-04 19:41:10,826 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-04 19:41:10,827 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 138 transitions. [2018-02-04 19:41:10,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-02-04 19:41:10,827 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:10,827 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:10,827 INFO L371 AbstractCegarLoop]: === Iteration 19 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:10,827 INFO L82 PathProgramCache]: Analyzing trace with hash -91634674, now seen corresponding path program 1 times [2018-02-04 19:41:10,828 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:10,828 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:10,828 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:10,828 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:10,828 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:10,837 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:10,847 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:10,847 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:10,847 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:10,848 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:10,880 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:10,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:10,900 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:10,903 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:10,903 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:41:10,942 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:10,943 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:10,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:41:10,944 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:10,951 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:10,951 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-02-04 19:41:10,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:10,976 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:10,976 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:10,978 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:10,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:10,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:10,990 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:10,991 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:11,000 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:11,001 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:43, output treesize:32 [2018-02-04 19:41:11,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 71 [2018-02-04 19:41:11,062 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-02-04 19:41:11,062 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:11,067 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:11,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-02-04 19:41:11,080 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-02-04 19:41:11,081 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:11,084 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:11,089 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:11,089 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:92, output treesize:26 [2018-02-04 19:41:11,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-02-04 19:41:11,297 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:11,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2018-02-04 19:41:11,302 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:11,311 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:11,327 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:41:11,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-02-04 19:41:11,333 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:11,335 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:41:11,349 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 4 xjuncts. [2018-02-04 19:41:11,349 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:76, output treesize:52 [2018-02-04 19:41:11,457 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:11,457 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:11,457 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-04 19:41:11,457 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 19:41:11,458 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 19:41:11,458 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2018-02-04 19:41:11,458 INFO L87 Difference]: Start difference. First operand 128 states and 138 transitions. Second operand 23 states. [2018-02-04 19:41:12,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:12,613 INFO L93 Difference]: Finished difference Result 170 states and 179 transitions. [2018-02-04 19:41:12,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-04 19:41:12,613 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 47 [2018-02-04 19:41:12,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:12,614 INFO L225 Difference]: With dead ends: 170 [2018-02-04 19:41:12,614 INFO L226 Difference]: Without dead ends: 170 [2018-02-04 19:41:12,614 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=335, Invalid=1557, Unknown=0, NotChecked=0, Total=1892 [2018-02-04 19:41:12,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-02-04 19:41:12,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 129. [2018-02-04 19:41:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-02-04 19:41:12,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 139 transitions. [2018-02-04 19:41:12,616 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 139 transitions. Word has length 47 [2018-02-04 19:41:12,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:12,616 INFO L432 AbstractCegarLoop]: Abstraction has 129 states and 139 transitions. [2018-02-04 19:41:12,616 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 19:41:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 139 transitions. [2018-02-04 19:41:12,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-02-04 19:41:12,623 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:12,624 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:12,624 INFO L371 AbstractCegarLoop]: === Iteration 20 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:12,624 INFO L82 PathProgramCache]: Analyzing trace with hash 2133393231, now seen corresponding path program 1 times [2018-02-04 19:41:12,624 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:12,624 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:12,625 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:12,625 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:12,625 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:12,633 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:12,755 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:12,755 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:12,755 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:12,755 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:12,781 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:12,794 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:12,794 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,799 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:12,799 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,802 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,802 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-02-04 19:41:12,838 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:12,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:41:12,838 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,844 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:12,845 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:12,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:41:12,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,850 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-02-04 19:41:12,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:12,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:12,882 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,883 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,893 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:12,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:12,894 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,895 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,903 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,903 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:57, output treesize:49 [2018-02-04 19:41:12,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2018-02-04 19:41:12,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-02-04 19:41:12,969 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,972 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-02-04 19:41:12,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-02-04 19:41:12,984 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,986 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:12,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:12,991 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:112, output treesize:46 [2018-02-04 19:41:13,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-02-04 19:41:13,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2018-02-04 19:41:13,098 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:13,105 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:13,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:41:13,122 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2018-02-04 19:41:13,123 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:13,125 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:41:13,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 11 dim-0 vars, and 5 xjuncts. [2018-02-04 19:41:13,137 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:70, output treesize:191 [2018-02-04 19:41:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 19:41:13,368 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 19:41:13,368 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18] total 31 [2018-02-04 19:41:13,368 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-04 19:41:13,368 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-04 19:41:13,368 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2018-02-04 19:41:13,368 INFO L87 Difference]: Start difference. First operand 129 states and 139 transitions. Second operand 31 states. [2018-02-04 19:41:15,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:15,059 INFO L93 Difference]: Finished difference Result 181 states and 189 transitions. [2018-02-04 19:41:15,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-02-04 19:41:15,060 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 49 [2018-02-04 19:41:15,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:15,060 INFO L225 Difference]: With dead ends: 181 [2018-02-04 19:41:15,060 INFO L226 Difference]: Without dead ends: 181 [2018-02-04 19:41:15,061 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 945 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=689, Invalid=3867, Unknown=0, NotChecked=0, Total=4556 [2018-02-04 19:41:15,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-02-04 19:41:15,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 140. [2018-02-04 19:41:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-02-04 19:41:15,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2018-02-04 19:41:15,063 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 49 [2018-02-04 19:41:15,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:15,063 INFO L432 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2018-02-04 19:41:15,063 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-04 19:41:15,063 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2018-02-04 19:41:15,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-02-04 19:41:15,063 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:15,063 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:15,063 INFO L371 AbstractCegarLoop]: === Iteration 21 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:15,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1904695477, now seen corresponding path program 1 times [2018-02-04 19:41:15,064 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:15,064 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:15,064 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:15,064 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:15,064 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:15,070 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:15,073 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:15,073 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:15,073 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:15,073 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:15,095 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:15,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:15,112 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,113 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,113 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-02-04 19:41:15,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-02-04 19:41:15,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:41:15,125 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,126 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,130 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,130 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-02-04 19:41:15,140 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:15,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:41:15,140 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,170 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:15,171 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:15,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:41:15,172 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,179 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:28 [2018-02-04 19:41:15,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:15,214 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:15,215 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,217 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2018-02-04 19:41:15,239 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:15,240 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 19:41:15,241 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,244 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,270 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,270 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:72, output treesize:52 [2018-02-04 19:41:15,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-02-04 19:41:15,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 10 [2018-02-04 19:41:15,288 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,291 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,298 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:15,298 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:58, output treesize:37 [2018-02-04 19:41:15,328 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 19:41:15,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:41:15,330 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,333 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,341 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:15,341 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:44 [2018-02-04 19:41:15,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-02-04 19:41:15,358 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,366 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:15,367 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:15,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:41:15,367 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:15,373 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:49, output treesize:29 [2018-02-04 19:41:15,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:15,400 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:15,400 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,401 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-02-04 19:41:15,413 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:15,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 19:41:15,415 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,417 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,423 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:15,423 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:61, output treesize:35 [2018-02-04 19:41:15,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-02-04 19:41:15,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-02-04 19:41:15,437 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,438 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:15,444 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:29 [2018-02-04 19:41:15,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2018-02-04 19:41:15,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2018-02-04 19:41:15,493 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,508 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:15,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 29 [2018-02-04 19:41:15,512 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:15,520 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:41:15,530 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:15,530 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:40, output treesize:62 [2018-02-04 19:41:15,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-02-04 19:41:15,628 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:15,629 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:15,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 21 [2018-02-04 19:41:15,634 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 4 xjuncts. [2018-02-04 19:41:15,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 19:41:15,647 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:15,656 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-02-04 19:41:15,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-02-04 19:41:15,669 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:42, output treesize:37 [2018-02-04 19:41:15,718 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:15,718 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:15,718 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-02-04 19:41:15,718 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-04 19:41:15,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-04 19:41:15,719 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2018-02-04 19:41:15,719 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 24 states. [2018-02-04 19:41:16,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:16,495 INFO L93 Difference]: Finished difference Result 232 states and 256 transitions. [2018-02-04 19:41:16,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-02-04 19:41:16,496 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 49 [2018-02-04 19:41:16,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:16,496 INFO L225 Difference]: With dead ends: 232 [2018-02-04 19:41:16,496 INFO L226 Difference]: Without dead ends: 227 [2018-02-04 19:41:16,497 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=295, Invalid=1685, Unknown=0, NotChecked=0, Total=1980 [2018-02-04 19:41:16,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-02-04 19:41:16,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 157. [2018-02-04 19:41:16,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-02-04 19:41:16,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 172 transitions. [2018-02-04 19:41:16,499 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 172 transitions. Word has length 49 [2018-02-04 19:41:16,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:16,499 INFO L432 AbstractCegarLoop]: Abstraction has 157 states and 172 transitions. [2018-02-04 19:41:16,499 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-04 19:41:16,499 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 172 transitions. [2018-02-04 19:41:16,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-02-04 19:41:16,499 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:16,499 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:16,499 INFO L371 AbstractCegarLoop]: === Iteration 22 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:16,500 INFO L82 PathProgramCache]: Analyzing trace with hash 2020025427, now seen corresponding path program 1 times [2018-02-04 19:41:16,500 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:16,500 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:16,500 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:16,500 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:16,500 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:16,506 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:16,511 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:16,511 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:16,512 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:16,512 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:16,531 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:16,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:16,532 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,534 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,534 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:41:16,554 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:16,555 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:16,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-02-04 19:41:16,555 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:41:16,562 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,568 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,568 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-02-04 19:41:16,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-02-04 19:41:16,588 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:16,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:16,597 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,598 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,604 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:44, output treesize:23 [2018-02-04 19:41:16,634 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:16,636 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-02-04 19:41:16,637 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:41:16,637 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,640 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,646 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:16,646 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:34 [2018-02-04 19:41:16,659 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:16,660 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:16,660 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:41:16,660 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:16,667 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:32 [2018-02-04 19:41:16,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-02-04 19:41:16,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:41:16,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,698 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,709 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:16,711 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 49 [2018-02-04 19:41:16,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:16,713 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,718 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,727 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:16,728 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:63, output treesize:49 [2018-02-04 19:41:16,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2018-02-04 19:41:16,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-02-04 19:41:16,746 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,747 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,752 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:16,753 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:61, output treesize:34 [2018-02-04 19:41:16,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 47 [2018-02-04 19:41:16,798 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2018-02-04 19:41:16,798 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,812 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,817 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:16,818 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:49, output treesize:31 [2018-02-04 19:41:16,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-02-04 19:41:16,898 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:16,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2018-02-04 19:41:16,899 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,903 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,910 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:16,911 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:5 [2018-02-04 19:41:16,939 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:16,939 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:16,939 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-04 19:41:16,939 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 19:41:16,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 19:41:16,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2018-02-04 19:41:16,939 INFO L87 Difference]: Start difference. First operand 157 states and 172 transitions. Second operand 22 states. [2018-02-04 19:41:17,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:17,746 INFO L93 Difference]: Finished difference Result 215 states and 235 transitions. [2018-02-04 19:41:17,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-04 19:41:17,746 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 49 [2018-02-04 19:41:17,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:17,747 INFO L225 Difference]: With dead ends: 215 [2018-02-04 19:41:17,747 INFO L226 Difference]: Without dead ends: 215 [2018-02-04 19:41:17,747 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=344, Invalid=1548, Unknown=0, NotChecked=0, Total=1892 [2018-02-04 19:41:17,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-02-04 19:41:17,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 164. [2018-02-04 19:41:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-02-04 19:41:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 180 transitions. [2018-02-04 19:41:17,749 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 180 transitions. Word has length 49 [2018-02-04 19:41:17,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:17,749 INFO L432 AbstractCegarLoop]: Abstraction has 164 states and 180 transitions. [2018-02-04 19:41:17,749 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 19:41:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 180 transitions. [2018-02-04 19:41:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-02-04 19:41:17,750 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:17,750 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:17,750 INFO L371 AbstractCegarLoop]: === Iteration 23 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:17,750 INFO L82 PathProgramCache]: Analyzing trace with hash 2020025428, now seen corresponding path program 1 times [2018-02-04 19:41:17,750 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:17,750 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:17,751 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:17,751 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:17,751 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:17,756 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:17,761 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:17,762 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:17,762 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:17,762 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:17,783 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:17,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:17,792 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,795 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,795 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:41:17,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:17,829 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,840 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:17,841 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:17,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:41:17,842 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,850 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:25 [2018-02-04 19:41:17,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:17,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:17,882 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,883 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:17,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:17,896 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,897 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,907 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:53, output treesize:48 [2018-02-04 19:41:17,963 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:17,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:41:17,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:41:17,967 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,972 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,989 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:17,992 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 32 [2018-02-04 19:41:17,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-02-04 19:41:17,995 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:17,999 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:18,008 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:89, output treesize:59 [2018-02-04 19:41:18,026 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:18,027 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:18,027 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:18,028 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:18,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-02-04 19:41:18,028 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-02-04 19:41:18,041 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,057 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:18,057 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:68 [2018-02-04 19:41:18,108 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:18,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2018-02-04 19:41:18,114 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:18,115 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,125 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,143 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:18,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 30 [2018-02-04 19:41:18,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:41:18,147 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,151 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,165 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:18,165 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:94, output treesize:86 [2018-02-04 19:41:18,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 128 [2018-02-04 19:41:18,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:18,292 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,303 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,323 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 62 [2018-02-04 19:41:18,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:18,325 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,329 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,341 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:18,342 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:197, output treesize:95 [2018-02-04 19:41:18,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 61 [2018-02-04 19:41:18,422 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:18,422 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2018-02-04 19:41:18,422 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,434 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2018-02-04 19:41:18,435 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:18,441 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:18,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:41:18,453 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:18,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:41:18,453 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,455 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:18,463 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:18,463 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:113, output treesize:18 [2018-02-04 19:41:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:18,520 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:18,520 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-04 19:41:18,520 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-04 19:41:18,520 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-04 19:41:18,520 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2018-02-04 19:41:18,520 INFO L87 Difference]: Start difference. First operand 164 states and 180 transitions. Second operand 21 states. [2018-02-04 19:41:19,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:19,618 INFO L93 Difference]: Finished difference Result 242 states and 266 transitions. [2018-02-04 19:41:19,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-02-04 19:41:19,618 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 49 [2018-02-04 19:41:19,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:19,618 INFO L225 Difference]: With dead ends: 242 [2018-02-04 19:41:19,619 INFO L226 Difference]: Without dead ends: 242 [2018-02-04 19:41:19,619 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=256, Invalid=1304, Unknown=0, NotChecked=0, Total=1560 [2018-02-04 19:41:19,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-02-04 19:41:19,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 169. [2018-02-04 19:41:19,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-02-04 19:41:19,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 185 transitions. [2018-02-04 19:41:19,621 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 185 transitions. Word has length 49 [2018-02-04 19:41:19,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:19,621 INFO L432 AbstractCegarLoop]: Abstraction has 169 states and 185 transitions. [2018-02-04 19:41:19,621 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-04 19:41:19,621 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 185 transitions. [2018-02-04 19:41:19,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-02-04 19:41:19,621 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:19,621 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:19,621 INFO L371 AbstractCegarLoop]: === Iteration 24 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:19,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1491447004, now seen corresponding path program 1 times [2018-02-04 19:41:19,621 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:19,621 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:19,622 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:19,622 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:19,622 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:19,627 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:19,632 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:19,632 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:19,632 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:19,633 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:19,650 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:19,733 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:19,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:19,763 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:19,765 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:19,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:19,775 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:58, output treesize:58 [2018-02-04 19:41:19,841 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:19,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 77 [2018-02-04 19:41:19,846 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-02-04 19:41:19,846 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:19,850 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:19,857 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:19,857 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:85, output treesize:52 [2018-02-04 19:41:19,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2018-02-04 19:41:19,939 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:19,939 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-02-04 19:41:19,939 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:19,952 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:19,958 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:19,958 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:58, output treesize:31 [2018-02-04 19:41:20,018 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~p~0.base Int) (v_prenex_40 Int)) (let ((.cse0 (store |c_old(#valid)| v_prenex_40 1))) (and (not (= v_prenex_40 0)) (not (= 0 main_~p~0.base)) (= (select .cse0 main_~p~0.base) 0) (= |c_#valid| (store (store (store .cse0 main_~p~0.base 1) v_prenex_40 0) main_~p~0.base 0)) (= 0 (select |c_old(#valid)| v_prenex_40))))) is different from true [2018-02-04 19:41:20,026 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 19:41:20,027 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:20,027 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-04 19:41:20,027 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-04 19:41:20,027 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-04 19:41:20,027 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=320, Unknown=14, NotChecked=36, Total=420 [2018-02-04 19:41:20,027 INFO L87 Difference]: Start difference. First operand 169 states and 185 transitions. Second operand 21 states. [2018-02-04 19:41:20,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:20,600 INFO L93 Difference]: Finished difference Result 175 states and 190 transitions. [2018-02-04 19:41:20,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-02-04 19:41:20,600 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 51 [2018-02-04 19:41:20,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:20,601 INFO L225 Difference]: With dead ends: 175 [2018-02-04 19:41:20,601 INFO L226 Difference]: Without dead ends: 149 [2018-02-04 19:41:20,601 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=785, Unknown=23, NotChecked=58, Total=992 [2018-02-04 19:41:20,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-02-04 19:41:20,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-02-04 19:41:20,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-02-04 19:41:20,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 164 transitions. [2018-02-04 19:41:20,603 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 164 transitions. Word has length 51 [2018-02-04 19:41:20,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:20,603 INFO L432 AbstractCegarLoop]: Abstraction has 149 states and 164 transitions. [2018-02-04 19:41:20,603 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-04 19:41:20,603 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 164 transitions. [2018-02-04 19:41:20,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-02-04 19:41:20,603 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:20,603 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:20,603 INFO L371 AbstractCegarLoop]: === Iteration 25 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:20,603 INFO L82 PathProgramCache]: Analyzing trace with hash 3548012, now seen corresponding path program 1 times [2018-02-04 19:41:20,603 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:20,603 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:20,604 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:20,604 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:20,604 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:20,611 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:20,618 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:20,618 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:20,619 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:20,619 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:20,645 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:20,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:20,648 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,650 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,651 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:41:20,688 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:20,689 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:20,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 19:41:20,690 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:41:20,704 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,715 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,715 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-02-04 19:41:20,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:20,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:20,746 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,748 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,762 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:20,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:20,763 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,764 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,773 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,773 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:60, output treesize:58 [2018-02-04 19:41:20,811 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:20,814 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2018-02-04 19:41:20,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:41:20,815 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,818 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,829 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:20,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 50 [2018-02-04 19:41:20,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:41:20,833 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,837 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,853 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,853 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:89, output treesize:54 [2018-02-04 19:41:20,871 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:20,872 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:20,873 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:20,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 49 [2018-02-04 19:41:20,874 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 40 [2018-02-04 19:41:20,887 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,897 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,897 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:76 [2018-02-04 19:41:20,939 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:20,941 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2018-02-04 19:41:20,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-02-04 19:41:20,943 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,946 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,964 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:20,966 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:20,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 80 [2018-02-04 19:41:20,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:41:20,968 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,976 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,989 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:20,989 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:109, output treesize:99 [2018-02-04 19:41:21,067 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:21,071 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:21,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 159 [2018-02-04 19:41:21,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-02-04 19:41:21,075 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:21,086 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:21,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 54 [2018-02-04 19:41:21,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-02-04 19:41:21,104 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:21,106 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:21,116 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:21,116 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:202, output treesize:112 [2018-02-04 19:41:21,196 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:21,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2018-02-04 19:41:21,196 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:21,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-02-04 19:41:21,220 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:21,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-02-04 19:41:21,221 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:21,223 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:21,232 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:21,233 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:140, output treesize:86 [2018-02-04 19:41:21,312 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:21,313 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:21,314 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:21,315 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:21,315 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2018-02-04 19:41:21,317 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:21,322 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 39 [2018-02-04 19:41:21,322 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:21,340 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:21,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2018-02-04 19:41:21,340 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:21,342 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:21,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 44 [2018-02-04 19:41:21,346 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:21,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:21,371 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:21,371 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:95, output treesize:57 [2018-02-04 19:41:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:21,461 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:21,461 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-02-04 19:41:21,461 INFO L409 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-02-04 19:41:21,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-02-04 19:41:21,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2018-02-04 19:41:21,462 INFO L87 Difference]: Start difference. First operand 149 states and 164 transitions. Second operand 25 states. [2018-02-04 19:41:23,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:23,350 INFO L93 Difference]: Finished difference Result 214 states and 234 transitions. [2018-02-04 19:41:23,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-04 19:41:23,350 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 57 [2018-02-04 19:41:23,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:23,351 INFO L225 Difference]: With dead ends: 214 [2018-02-04 19:41:23,351 INFO L226 Difference]: Without dead ends: 214 [2018-02-04 19:41:23,352 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=343, Invalid=1819, Unknown=0, NotChecked=0, Total=2162 [2018-02-04 19:41:23,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-02-04 19:41:23,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 152. [2018-02-04 19:41:23,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-02-04 19:41:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 168 transitions. [2018-02-04 19:41:23,355 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 168 transitions. Word has length 57 [2018-02-04 19:41:23,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:23,355 INFO L432 AbstractCegarLoop]: Abstraction has 152 states and 168 transitions. [2018-02-04 19:41:23,355 INFO L433 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-02-04 19:41:23,355 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 168 transitions. [2018-02-04 19:41:23,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-02-04 19:41:23,355 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:23,356 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:23,356 INFO L371 AbstractCegarLoop]: === Iteration 26 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:23,356 INFO L82 PathProgramCache]: Analyzing trace with hash 3548013, now seen corresponding path program 1 times [2018-02-04 19:41:23,356 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:23,356 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:23,357 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:23,357 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:23,357 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:23,368 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:23,372 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:23,372 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:23,372 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:23,373 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:23,410 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:23,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:23,424 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,427 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,427 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:41:23,449 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,450 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:41:23,451 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:23,466 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,472 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,472 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-02-04 19:41:23,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:23,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:23,496 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,498 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,507 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,507 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-02-04 19:41:23,555 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:41:23,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:41:23,560 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,566 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,575 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:62, output treesize:47 [2018-02-04 19:41:23,598 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,599 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-02-04 19:41:23,599 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,616 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,617 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,617 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,618 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,619 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-02-04 19:41:23,619 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,631 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,632 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:61, output treesize:53 [2018-02-04 19:41:23,673 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,675 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 56 [2018-02-04 19:41:23,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:41:23,700 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,709 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-02-04 19:41:23,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:41:23,730 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,732 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,744 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,744 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:83, output treesize:80 [2018-02-04 19:41:23,801 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,804 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 164 [2018-02-04 19:41:23,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:23,807 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,815 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 74 [2018-02-04 19:41:23,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:23,829 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,831 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:23,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:23,839 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:203, output treesize:101 [2018-02-04 19:41:23,947 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,948 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:23,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 97 [2018-02-04 19:41:23,954 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 64 [2018-02-04 19:41:23,955 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:23,986 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:23,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 76 [2018-02-04 19:41:23,995 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:23,997 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:23,997 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 62 [2018-02-04 19:41:23,998 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:24,024 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:24,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 51 [2018-02-04 19:41:24,046 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:24,046 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:41:24,046 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:24,052 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:24,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 51 [2018-02-04 19:41:24,054 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:24,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:41:24,054 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:24,060 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:24,077 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:24,077 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:124, output treesize:47 [2018-02-04 19:41:24,134 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:24,134 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:24,134 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-04 19:41:24,134 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 19:41:24,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 19:41:24,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2018-02-04 19:41:24,134 INFO L87 Difference]: Start difference. First operand 152 states and 168 transitions. Second operand 23 states. [2018-02-04 19:41:25,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:25,213 INFO L93 Difference]: Finished difference Result 227 states and 251 transitions. [2018-02-04 19:41:25,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-02-04 19:41:25,213 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 57 [2018-02-04 19:41:25,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:25,214 INFO L225 Difference]: With dead ends: 227 [2018-02-04 19:41:25,214 INFO L226 Difference]: Without dead ends: 227 [2018-02-04 19:41:25,214 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=271, Invalid=1535, Unknown=0, NotChecked=0, Total=1806 [2018-02-04 19:41:25,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-02-04 19:41:25,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 157. [2018-02-04 19:41:25,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-02-04 19:41:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 173 transitions. [2018-02-04 19:41:25,216 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 173 transitions. Word has length 57 [2018-02-04 19:41:25,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:25,216 INFO L432 AbstractCegarLoop]: Abstraction has 157 states and 173 transitions. [2018-02-04 19:41:25,216 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 19:41:25,216 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 173 transitions. [2018-02-04 19:41:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-02-04 19:41:25,216 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:25,216 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:25,217 INFO L371 AbstractCegarLoop]: === Iteration 27 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:25,217 INFO L82 PathProgramCache]: Analyzing trace with hash 360796057, now seen corresponding path program 1 times [2018-02-04 19:41:25,217 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:25,217 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:25,217 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:25,217 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:25,217 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:25,223 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:25,225 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:25,225 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:25,225 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:25,225 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:25,245 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:25,277 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:25,277 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:25,278 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:25,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 28 [2018-02-04 19:41:25,279 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,285 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:28 [2018-02-04 19:41:25,331 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:25,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:25,333 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,335 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,345 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:40 [2018-02-04 19:41:25,386 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:25,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:41:25,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:41:25,390 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,393 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,400 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:25,400 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:66, output treesize:40 [2018-02-04 19:41:25,411 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:25,412 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:25,413 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:25,414 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:25,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 39 [2018-02-04 19:41:25,414 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:25,422 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:54, output treesize:47 [2018-02-04 19:41:25,450 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:25,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-02-04 19:41:25,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:25,454 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,459 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-02-04 19:41:25,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:41:25,472 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,474 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,485 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:25,485 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:78, output treesize:76 [2018-02-04 19:41:25,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2018-02-04 19:41:25,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-02-04 19:41:25,504 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,505 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,512 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:25,512 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:115, output treesize:88 [2018-02-04 19:41:25,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 84 [2018-02-04 19:41:25,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:25,555 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,559 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:25,566 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:124, output treesize:70 [2018-02-04 19:41:25,632 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 52 [2018-02-04 19:41:25,636 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 30 [2018-02-04 19:41:25,637 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:25,645 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2018-02-04 19:41:25,645 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2018-02-04 19:41:25,646 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,651 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:25,659 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:25,659 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:79, output treesize:38 [2018-02-04 19:41:25,731 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:25,732 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-02-04 19:41:25,732 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:25,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:25,736 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:15 [2018-02-04 19:41:25,768 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 19:41:25,768 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:25,768 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-04 19:41:25,768 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 19:41:25,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 19:41:25,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2018-02-04 19:41:25,769 INFO L87 Difference]: Start difference. First operand 157 states and 173 transitions. Second operand 23 states. [2018-02-04 19:41:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:38,897 INFO L93 Difference]: Finished difference Result 222 states and 245 transitions. [2018-02-04 19:41:38,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-04 19:41:38,897 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 59 [2018-02-04 19:41:38,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:38,898 INFO L225 Difference]: With dead ends: 222 [2018-02-04 19:41:38,898 INFO L226 Difference]: Without dead ends: 222 [2018-02-04 19:41:38,898 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=319, Invalid=1661, Unknown=0, NotChecked=0, Total=1980 [2018-02-04 19:41:38,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-02-04 19:41:38,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 191. [2018-02-04 19:41:38,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-02-04 19:41:38,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 219 transitions. [2018-02-04 19:41:38,900 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 219 transitions. Word has length 59 [2018-02-04 19:41:38,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:38,900 INFO L432 AbstractCegarLoop]: Abstraction has 191 states and 219 transitions. [2018-02-04 19:41:38,900 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 19:41:38,900 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 219 transitions. [2018-02-04 19:41:38,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-02-04 19:41:38,901 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:38,901 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:38,901 INFO L371 AbstractCegarLoop]: === Iteration 28 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:38,901 INFO L82 PathProgramCache]: Analyzing trace with hash 360796058, now seen corresponding path program 1 times [2018-02-04 19:41:38,901 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:38,901 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:38,901 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:38,901 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:38,901 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:38,908 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:38,911 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:38,911 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:38,911 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:38,912 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:38,951 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:38,954 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:38,954 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:38,958 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:38,958 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:38,962 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:38,962 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-02-04 19:41:38,995 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:38,996 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:41:38,996 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,008 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,009 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:41:39,010 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,018 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,018 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-02-04 19:41:39,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:39,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:39,051 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:39,072 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:39,072 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,074 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,088 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,089 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:59, output treesize:54 [2018-02-04 19:41:39,165 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 32 [2018-02-04 19:41:39,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-02-04 19:41:39,171 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,175 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,193 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:41:39,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:41:39,199 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,205 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,217 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:39,217 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:95, output treesize:65 [2018-02-04 19:41:39,243 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,244 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,244 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 53 [2018-02-04 19:41:39,244 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,265 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,266 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,267 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,267 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-02-04 19:41:39,268 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,284 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:39,284 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:68 [2018-02-04 19:41:39,334 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,337 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 30 [2018-02-04 19:41:39,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:41:39,339 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,343 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,367 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:39,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 60 [2018-02-04 19:41:39,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:39,372 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,378 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,397 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:39,397 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:94, output treesize:86 [2018-02-04 19:41:39,462 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 62 [2018-02-04 19:41:39,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:39,464 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,467 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 95 [2018-02-04 19:41:39,488 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:39,488 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,493 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:39,501 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:39,501 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:203, output treesize:101 [2018-02-04 19:41:39,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 61 [2018-02-04 19:41:39,610 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2018-02-04 19:41:39,610 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:39,619 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2018-02-04 19:41:39,620 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:39,629 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:39,645 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:41:39,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-02-04 19:41:39,649 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:39,651 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:41:39,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 18 dim-0 vars, and 5 xjuncts. [2018-02-04 19:41:39,668 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:125, output treesize:282 [2018-02-04 19:41:39,819 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 19:41:39,819 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:39,819 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-04 19:41:39,819 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-04 19:41:39,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-04 19:41:39,820 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2018-02-04 19:41:39,820 INFO L87 Difference]: Start difference. First operand 191 states and 219 transitions. Second operand 24 states. [2018-02-04 19:41:41,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:41,231 INFO L93 Difference]: Finished difference Result 234 states and 256 transitions. [2018-02-04 19:41:41,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-02-04 19:41:41,231 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 59 [2018-02-04 19:41:41,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:41,232 INFO L225 Difference]: With dead ends: 234 [2018-02-04 19:41:41,232 INFO L226 Difference]: Without dead ends: 234 [2018-02-04 19:41:41,232 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=312, Invalid=1758, Unknown=0, NotChecked=0, Total=2070 [2018-02-04 19:41:41,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-02-04 19:41:41,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 191. [2018-02-04 19:41:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-02-04 19:41:41,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 218 transitions. [2018-02-04 19:41:41,234 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 218 transitions. Word has length 59 [2018-02-04 19:41:41,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:41,234 INFO L432 AbstractCegarLoop]: Abstraction has 191 states and 218 transitions. [2018-02-04 19:41:41,234 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-04 19:41:41,234 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 218 transitions. [2018-02-04 19:41:41,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-02-04 19:41:41,235 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:41,235 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:41,235 INFO L371 AbstractCegarLoop]: === Iteration 29 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:41,235 INFO L82 PathProgramCache]: Analyzing trace with hash -529211193, now seen corresponding path program 2 times [2018-02-04 19:41:41,235 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:41,235 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:41,235 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:41,236 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:41,236 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:41,244 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:41,246 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:41,247 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:41,247 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:41,247 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:41:41,288 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 19:41:41,288 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:41:41,291 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:41,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:41,294 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,299 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,299 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:41:41,318 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-02-04 19:41:41,320 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:41:41,320 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,321 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,329 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,329 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:25 [2018-02-04 19:41:41,343 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,343 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,344 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:41:41,344 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,351 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,352 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-02-04 19:41:41,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2018-02-04 19:41:41,372 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 19:41:41,373 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,375 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:41,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:41,385 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,386 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,393 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:61, output treesize:35 [2018-02-04 19:41:41,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-02-04 19:41:41,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-02-04 19:41:41,407 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,408 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,412 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:41,412 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:26 [2018-02-04 19:41:41,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 19:41:41,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:41:41,445 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,448 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,455 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:41,455 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:38 [2018-02-04 19:41:41,471 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,471 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,472 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-02-04 19:41:41,472 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:41,482 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:49, output treesize:51 [2018-02-04 19:41:41,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:41,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:41,525 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,526 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,543 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-02-04 19:41:41,544 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 19:41:41,546 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,550 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,560 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:41,561 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:83, output treesize:69 [2018-02-04 19:41:41,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2018-02-04 19:41:41,584 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 14 [2018-02-04 19:41:41,584 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,587 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,596 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:41,596 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:78, output treesize:51 [2018-02-04 19:41:41,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2018-02-04 19:41:41,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:41:41,648 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,652 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,662 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:41,662 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:62, output treesize:58 [2018-02-04 19:41:41,685 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,686 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,686 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,687 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,687 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2018-02-04 19:41:41,687 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,697 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:41,697 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:63, output treesize:55 [2018-02-04 19:41:41,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:41,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:41,748 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,750 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,773 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2018-02-04 19:41:41,776 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:41,777 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 19:41:41,777 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,783 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:41,796 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:87, output treesize:73 [2018-02-04 19:41:41,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2018-02-04 19:41:41,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 13 [2018-02-04 19:41:41,827 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,829 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:41,839 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:82, output treesize:55 [2018-02-04 19:41:41,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 54 [2018-02-04 19:41:41,908 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:41:41,908 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,915 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:41,926 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:41,927 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:66, output treesize:62 [2018-02-04 19:41:41,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 50 [2018-02-04 19:41:41,996 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 19:41:41,996 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:42,004 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 19:41:42,004 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:42,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 19:41:42,007 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:42,010 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:42,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-02-04 19:41:42,010 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:42,012 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:42,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:42,019 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 10 variables, input treesize:72, output treesize:3 [2018-02-04 19:41:42,049 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:42,049 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:42,049 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-04 19:41:42,049 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-04 19:41:42,050 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-04 19:41:42,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2018-02-04 19:41:42,050 INFO L87 Difference]: Start difference. First operand 191 states and 218 transitions. Second operand 26 states. [2018-02-04 19:41:43,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:43,740 INFO L93 Difference]: Finished difference Result 256 states and 292 transitions. [2018-02-04 19:41:43,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-02-04 19:41:43,740 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 61 [2018-02-04 19:41:43,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:43,743 INFO L225 Difference]: With dead ends: 256 [2018-02-04 19:41:43,743 INFO L226 Difference]: Without dead ends: 256 [2018-02-04 19:41:43,744 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=449, Invalid=2743, Unknown=0, NotChecked=0, Total=3192 [2018-02-04 19:41:43,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-02-04 19:41:43,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 190. [2018-02-04 19:41:43,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-02-04 19:41:43,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 216 transitions. [2018-02-04 19:41:43,747 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 216 transitions. Word has length 61 [2018-02-04 19:41:43,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:43,748 INFO L432 AbstractCegarLoop]: Abstraction has 190 states and 216 transitions. [2018-02-04 19:41:43,748 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-04 19:41:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 216 transitions. [2018-02-04 19:41:43,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-02-04 19:41:43,748 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:43,748 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:43,748 INFO L371 AbstractCegarLoop]: === Iteration 30 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:43,748 INFO L82 PathProgramCache]: Analyzing trace with hash -413881243, now seen corresponding path program 2 times [2018-02-04 19:41:43,748 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:43,748 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:43,749 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:43,749 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:41:43,749 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:43,757 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:43,764 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:43,764 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:43,764 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:43,765 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:41:43,793 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 19:41:43,793 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:41:43,797 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:43,804 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:43,804 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,807 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,807 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:41:43,830 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:43,839 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:43,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 19:41:43,840 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,848 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,849 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-02-04 19:41:43,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:43,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:43,874 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,875 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,882 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,882 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-02-04 19:41:43,915 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:43,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:41:43,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:41:43,919 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,922 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,927 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:59, output treesize:33 [2018-02-04 19:41:43,935 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:43,935 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:43,936 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:43,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-02-04 19:41:43,937 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,945 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,945 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:58 [2018-02-04 19:41:43,977 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:43,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2018-02-04 19:41:43,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:43,980 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,986 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:43,996 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:76, output treesize:70 [2018-02-04 19:41:44,050 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:44,051 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:44,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 103 [2018-02-04 19:41:44,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:41:44,057 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:44,065 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:44,073 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:44,074 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:120, output treesize:88 [2018-02-04 19:41:44,089 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:44,090 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:44,090 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:44,091 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:44,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 129 [2018-02-04 19:41:44,092 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:44,107 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:44,107 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:111, output treesize:135 [2018-02-04 19:41:44,158 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:44,159 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:44,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 121 [2018-02-04 19:41:44,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:44,165 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:44,178 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:44,193 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:44,194 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:148, output treesize:147 [2018-02-04 19:41:44,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 157 [2018-02-04 19:41:44,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-02-04 19:41:44,294 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:44,304 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:44,318 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:44,318 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:261, output treesize:192 [2018-02-04 19:41:44,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 109 [2018-02-04 19:41:44,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2018-02-04 19:41:44,400 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:44,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2018-02-04 19:41:44,413 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:44,425 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:44,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2018-02-04 19:41:44,425 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:44,435 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:44,448 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:44,448 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:207, output treesize:45 [2018-02-04 19:41:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:44,881 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:44,881 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-02-04 19:41:44,881 INFO L409 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-02-04 19:41:44,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-02-04 19:41:44,882 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2018-02-04 19:41:44,882 INFO L87 Difference]: Start difference. First operand 190 states and 216 transitions. Second operand 25 states. [2018-02-04 19:41:48,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:48,492 INFO L93 Difference]: Finished difference Result 282 states and 316 transitions. [2018-02-04 19:41:48,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-02-04 19:41:48,492 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 61 [2018-02-04 19:41:48,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:48,493 INFO L225 Difference]: With dead ends: 282 [2018-02-04 19:41:48,493 INFO L226 Difference]: Without dead ends: 282 [2018-02-04 19:41:48,494 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=356, Invalid=2094, Unknown=0, NotChecked=0, Total=2450 [2018-02-04 19:41:48,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2018-02-04 19:41:48,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 214. [2018-02-04 19:41:48,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-02-04 19:41:48,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 242 transitions. [2018-02-04 19:41:48,496 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 242 transitions. Word has length 61 [2018-02-04 19:41:48,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:48,496 INFO L432 AbstractCegarLoop]: Abstraction has 214 states and 242 transitions. [2018-02-04 19:41:48,496 INFO L433 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-02-04 19:41:48,496 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 242 transitions. [2018-02-04 19:41:48,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-02-04 19:41:48,497 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:48,497 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:48,497 INFO L371 AbstractCegarLoop]: === Iteration 31 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:48,497 INFO L82 PathProgramCache]: Analyzing trace with hash -413881242, now seen corresponding path program 2 times [2018-02-04 19:41:48,497 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:48,497 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:48,498 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:48,498 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:41:48,498 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:48,514 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:48,518 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:48,518 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:48,518 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:48,519 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:41:48,537 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 19:41:48,537 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:41:48,540 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:48,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:48,542 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:48,546 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,549 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,549 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-02-04 19:41:48,580 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:48,581 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:48,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:41:48,581 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:41:48,590 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,612 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:30 [2018-02-04 19:41:48,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:48,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:48,649 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,651 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:48,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:48,670 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,671 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,685 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:58, output treesize:53 [2018-02-04 19:41:48,745 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:48,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 32 [2018-02-04 19:41:48,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-02-04 19:41:48,752 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,755 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,769 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:48,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:41:48,772 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:41:48,773 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,776 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:48,787 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:92, output treesize:62 [2018-02-04 19:41:48,806 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:48,807 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:48,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 19:41:48,807 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 36 [2018-02-04 19:41:48,829 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,852 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:48,853 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:79, output treesize:76 [2018-02-04 19:41:48,904 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:48,907 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 30 [2018-02-04 19:41:48,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:41:48,910 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,914 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,938 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:48,941 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 60 [2018-02-04 19:41:48,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:48,944 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,951 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:48,971 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:48,971 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:114, output treesize:96 [2018-02-04 19:41:49,092 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,093 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 121 [2018-02-04 19:41:49,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 125 [2018-02-04 19:41:49,109 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 53 [2018-02-04 19:41:49,155 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:49,172 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:41:49,198 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,200 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-02-04 19:41:49,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:41:49,202 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,205 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,227 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:49,227 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:167, output treesize:183 [2018-02-04 19:41:49,303 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,304 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,304 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,305 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 174 [2018-02-04 19:41:49,305 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,354 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,355 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,355 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,356 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 82 [2018-02-04 19:41:49,356 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,396 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,396 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,397 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,397 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,398 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,398 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 136 [2018-02-04 19:41:49,399 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 87 [2018-02-04 19:41:49,436 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,470 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:49,471 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:205, output treesize:206 [2018-02-04 19:41:49,609 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 110 [2018-02-04 19:41:49,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:49,613 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,629 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,681 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 161 [2018-02-04 19:41:49,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-02-04 19:41:49,686 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,708 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,757 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,758 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 156 treesize of output 161 [2018-02-04 19:41:49,773 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 176 [2018-02-04 19:41:49,773 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,841 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 117 treesize of output 122 [2018-02-04 19:41:49,847 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:49,899 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:41:49,969 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:49,971 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 112 [2018-02-04 19:41:49,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:41:49,974 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:49,995 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,061 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 4 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-02-04 19:41:50,086 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 11 variables, input treesize:258, output treesize:339 [2018-02-04 19:41:50,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 167 [2018-02-04 19:41:50,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:50,375 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,390 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,490 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:50,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 329 treesize of output 213 [2018-02-04 19:41:50,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-02-04 19:41:50,502 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,522 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 209 [2018-02-04 19:41:50,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:50,611 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,626 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,702 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 152 [2018-02-04 19:41:50,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:50,703 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,716 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 260 treesize of output 239 [2018-02-04 19:41:50,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-02-04 19:41:50,793 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,809 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,865 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:50,867 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:50,870 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 142 [2018-02-04 19:41:50,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:50,872 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,886 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:50,934 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 6 dim-2 vars, End of recursive call: 7 dim-0 vars, and 3 xjuncts. [2018-02-04 19:41:50,934 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 16 variables, input treesize:756, output treesize:414 [2018-02-04 19:41:51,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 216 treesize of output 212 [2018-02-04 19:41:51,162 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:51,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:41:51,162 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:51,183 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:51,246 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:51,247 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:51,247 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 111 [2018-02-04 19:41:51,252 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 34 [2018-02-04 19:41:51,253 INFO L267 ElimStorePlain]: Start of recursive call 5: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:51,275 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:51,276 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2018-02-04 19:41:51,276 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:51,279 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:51,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 51 [2018-02-04 19:41:51,284 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:51,311 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:51,393 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:51,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 202 treesize of output 144 [2018-02-04 19:41:51,400 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 102 [2018-02-04 19:41:51,401 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:51,448 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:51,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 79 [2018-02-04 19:41:51,449 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:51,493 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:51,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 107 [2018-02-04 19:41:51,494 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:51,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 91 [2018-02-04 19:41:51,537 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:51,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 75 [2018-02-04 19:41:51,579 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:51,619 INFO L267 ElimStorePlain]: Start of recursive call 8: 5 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:51,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2018-02-04 19:41:51,726 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:51,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:41:51,727 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:51,738 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:51,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2018-02-04 19:41:51,741 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:51,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:41:51,741 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:51,753 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:51,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 107 [2018-02-04 19:41:51,884 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:51,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2018-02-04 19:41:51,884 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:51,901 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2018-02-04 19:41:51,901 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:51,916 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:52,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2018-02-04 19:41:52,022 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:52,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:41:52,022 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:52,032 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:52,126 INFO L267 ElimStorePlain]: Start of recursive call 1: 13 dim-0 vars, 6 dim-2 vars, End of recursive call: 12 dim-0 vars, and 5 xjuncts. [2018-02-04 19:41:52,127 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 19 variables, input treesize:489, output treesize:221 [2018-02-04 19:41:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:52,343 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:52,343 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-04 19:41:52,343 INFO L409 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-02-04 19:41:52,343 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-02-04 19:41:52,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2018-02-04 19:41:52,343 INFO L87 Difference]: Start difference. First operand 214 states and 242 transitions. Second operand 27 states. [2018-02-04 19:41:54,198 WARN L146 SmtUtils]: Spent 187ms on a formula simplification. DAG size of input: 96 DAG size of output 92 [2018-02-04 19:41:54,603 WARN L146 SmtUtils]: Spent 294ms on a formula simplification. DAG size of input: 110 DAG size of output 106 [2018-02-04 19:41:55,190 WARN L146 SmtUtils]: Spent 275ms on a formula simplification. DAG size of input: 149 DAG size of output 147 [2018-02-04 19:41:55,376 WARN L146 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 116 DAG size of output 116 [2018-02-04 19:41:55,640 WARN L146 SmtUtils]: Spent 140ms on a formula simplification. DAG size of input: 195 DAG size of output 116 [2018-02-04 19:41:56,098 WARN L146 SmtUtils]: Spent 159ms on a formula simplification. DAG size of input: 214 DAG size of output 121 [2018-02-04 19:41:56,295 WARN L146 SmtUtils]: Spent 133ms on a formula simplification. DAG size of input: 112 DAG size of output 112 [2018-02-04 19:41:56,488 WARN L146 SmtUtils]: Spent 134ms on a formula simplification. DAG size of input: 131 DAG size of output 117 [2018-02-04 19:41:56,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:41:56,927 INFO L93 Difference]: Finished difference Result 288 states and 324 transitions. [2018-02-04 19:41:56,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-04 19:41:56,928 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 61 [2018-02-04 19:41:56,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:41:56,928 INFO L225 Difference]: With dead ends: 288 [2018-02-04 19:41:56,928 INFO L226 Difference]: Without dead ends: 288 [2018-02-04 19:41:56,929 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=332, Invalid=2320, Unknown=0, NotChecked=0, Total=2652 [2018-02-04 19:41:56,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-02-04 19:41:56,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 219. [2018-02-04 19:41:56,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-02-04 19:41:56,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 247 transitions. [2018-02-04 19:41:56,933 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 247 transitions. Word has length 61 [2018-02-04 19:41:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:41:56,933 INFO L432 AbstractCegarLoop]: Abstraction has 219 states and 247 transitions. [2018-02-04 19:41:56,933 INFO L433 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-02-04 19:41:56,933 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 247 transitions. [2018-02-04 19:41:56,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-02-04 19:41:56,934 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:41:56,934 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:41:56,934 INFO L371 AbstractCegarLoop]: === Iteration 32 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:41:56,934 INFO L82 PathProgramCache]: Analyzing trace with hash -824929688, now seen corresponding path program 1 times [2018-02-04 19:41:56,934 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:41:56,934 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:41:56,935 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:56,935 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:41:56,935 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:41:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:56,944 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:41:56,950 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:41:56,950 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:41:56,950 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:41:56,951 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:41:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:41:56,990 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:41:57,004 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:41:57,004 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,007 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,007 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:41:57,038 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,039 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:41:57,040 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,046 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,046 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-02-04 19:41:57,072 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:57,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:57,074 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,076 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,090 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:41:57,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:41:57,092 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,094 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,106 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,107 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:51, output treesize:37 [2018-02-04 19:41:57,127 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:41:57,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-02-04 19:41:57,129 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,130 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,138 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,139 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:49, output treesize:34 [2018-02-04 19:41:57,170 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-02-04 19:41:57,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:41:57,174 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,177 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-02-04 19:41:57,189 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-02-04 19:41:57,190 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,191 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,200 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,200 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:68, output treesize:55 [2018-02-04 19:41:57,217 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,218 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,218 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,219 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-02-04 19:41:57,219 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,227 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,227 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:60, output treesize:53 [2018-02-04 19:41:57,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2018-02-04 19:41:57,262 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,263 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 41 [2018-02-04 19:41:57,264 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,267 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,278 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,279 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 58 [2018-02-04 19:41:57,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:41:57,281 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,295 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,302 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,303 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:85, output treesize:55 [2018-02-04 19:41:57,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 56 [2018-02-04 19:41:57,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-02-04 19:41:57,357 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,361 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,373 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,376 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 107 [2018-02-04 19:41:57,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:41:57,379 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,385 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:41:57,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:57,392 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:150, output treesize:83 [2018-02-04 19:41:57,464 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,465 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 69 [2018-02-04 19:41:57,468 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:41:57,473 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 43 [2018-02-04 19:41:57,473 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:57,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2018-02-04 19:41:57,485 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:57,489 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:57,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-02-04 19:41:57,499 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:107, output treesize:48 [2018-02-04 19:41:57,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:41:57,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2018-02-04 19:41:57,768 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:57,770 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:41:57,783 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 10 dim-0 vars, and 2 xjuncts. [2018-02-04 19:41:57,784 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:67, output treesize:83 [2018-02-04 19:41:57,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2018-02-04 19:41:57,977 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,977 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:57,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-02-04 19:41:57,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:58,000 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:58,000 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:58,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-02-04 19:41:58,001 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:58,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 17 [2018-02-04 19:41:58,024 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:58,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-02-04 19:41:58,047 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:58,066 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:58,067 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:58,067 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:41:58,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26 [2018-02-04 19:41:58,071 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-02-04 19:41:58,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2018-02-04 19:41:58,095 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:58,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 8 [2018-02-04 19:41:58,115 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:58,116 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2018-02-04 19:41:58,116 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 19:41:58,138 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-02-04 19:41:58,152 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-02-04 19:41:58,152 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:45, output treesize:28 [2018-02-04 19:41:58,202 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:41:58,202 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:41:58,202 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-04 19:41:58,203 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-04 19:41:58,203 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-04 19:41:58,203 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2018-02-04 19:41:58,203 INFO L87 Difference]: Start difference. First operand 219 states and 247 transitions. Second operand 30 states. [2018-02-04 19:42:00,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:42:00,085 INFO L93 Difference]: Finished difference Result 240 states and 262 transitions. [2018-02-04 19:42:00,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-02-04 19:42:00,086 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 63 [2018-02-04 19:42:00,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:42:00,086 INFO L225 Difference]: With dead ends: 240 [2018-02-04 19:42:00,087 INFO L226 Difference]: Without dead ends: 229 [2018-02-04 19:42:00,087 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=357, Invalid=2723, Unknown=0, NotChecked=0, Total=3080 [2018-02-04 19:42:00,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-02-04 19:42:00,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 209. [2018-02-04 19:42:00,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-02-04 19:42:00,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 236 transitions. [2018-02-04 19:42:00,089 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 236 transitions. Word has length 63 [2018-02-04 19:42:00,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:42:00,089 INFO L432 AbstractCegarLoop]: Abstraction has 209 states and 236 transitions. [2018-02-04 19:42:00,089 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-04 19:42:00,089 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 236 transitions. [2018-02-04 19:42:00,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-04 19:42:00,090 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:42:00,090 INFO L351 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:42:00,090 INFO L371 AbstractCegarLoop]: === Iteration 33 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:42:00,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1554597819, now seen corresponding path program 2 times [2018-02-04 19:42:00,090 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:42:00,090 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:42:00,090 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:00,090 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:42:00,090 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:00,096 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:42:00,123 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:42:00,123 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:42:00,123 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:42:00,124 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:42:00,148 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 19:42:00,148 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:42:00,151 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:42:00,154 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:00,154 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,157 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:42:00,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:00,178 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,190 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,190 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 19:42:00,191 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,201 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,202 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-02-04 19:42:00,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:00,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:00,236 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,237 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:00,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:00,254 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,256 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,268 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,268 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:56 [2018-02-04 19:42:00,320 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,322 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 32 [2018-02-04 19:42:00,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-02-04 19:42:00,324 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,328 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,337 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 58 [2018-02-04 19:42:00,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:00,341 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,345 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,352 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,352 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:92, output treesize:62 [2018-02-04 19:42:00,368 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-02-04 19:42:00,369 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,381 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,382 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,382 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-02-04 19:42:00,383 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,393 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,393 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:76, output treesize:68 [2018-02-04 19:42:00,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-02-04 19:42:00,428 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,440 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,442 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 30 [2018-02-04 19:42:00,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:42:00,444 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,447 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,458 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,460 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 70 [2018-02-04 19:42:00,462 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:42:00,462 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,468 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,477 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,477 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:98, output treesize:69 [2018-02-04 19:42:00,539 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 124 [2018-02-04 19:42:00,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:42:00,552 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,566 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2018-02-04 19:42:00,586 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-02-04 19:42:00,586 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,588 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,606 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,606 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 135 [2018-02-04 19:42:00,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:42:00,612 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,621 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,633 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:00,633 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:244, output treesize:126 [2018-02-04 19:42:00,769 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 33 [2018-02-04 19:42:00,770 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,785 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:00,785 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:134, output treesize:105 [2018-02-04 19:42:00,825 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,826 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:00,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 85 [2018-02-04 19:42:00,832 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 54 [2018-02-04 19:42:00,832 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:00,851 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:00,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 68 [2018-02-04 19:42:00,855 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 19:42:00,856 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:00,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 54 [2018-02-04 19:42:00,857 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,881 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:00,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2018-02-04 19:42:00,910 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:00,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 19:42:00,911 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 19:42:00,919 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,925 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,926 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2018-02-04 19:42:00,928 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:00,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 19:42:00,928 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 19:42:00,936 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,942 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:00,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:00,961 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:128, output treesize:17 [2018-02-04 19:42:01,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:42:01,058 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:01,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-02-04 19:42:01,058 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:01,059 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:01,062 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:01,063 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:3 [2018-02-04 19:42:01,106 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:42:01,106 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:42:01,106 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-02-04 19:42:01,106 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-04 19:42:01,107 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-04 19:42:01,107 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2018-02-04 19:42:01,107 INFO L87 Difference]: Start difference. First operand 209 states and 236 transitions. Second operand 26 states. [2018-02-04 19:42:02,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:42:02,766 INFO L93 Difference]: Finished difference Result 192 states and 208 transitions. [2018-02-04 19:42:02,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-02-04 19:42:02,766 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 65 [2018-02-04 19:42:02,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:42:02,767 INFO L225 Difference]: With dead ends: 192 [2018-02-04 19:42:02,767 INFO L226 Difference]: Without dead ends: 189 [2018-02-04 19:42:02,767 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=291, Invalid=2061, Unknown=0, NotChecked=0, Total=2352 [2018-02-04 19:42:02,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-02-04 19:42:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2018-02-04 19:42:02,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-02-04 19:42:02,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 205 transitions. [2018-02-04 19:42:02,770 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 205 transitions. Word has length 65 [2018-02-04 19:42:02,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:42:02,770 INFO L432 AbstractCegarLoop]: Abstraction has 189 states and 205 transitions. [2018-02-04 19:42:02,770 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-04 19:42:02,770 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 205 transitions. [2018-02-04 19:42:02,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-02-04 19:42:02,771 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:42:02,771 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:42:02,771 INFO L371 AbstractCegarLoop]: === Iteration 34 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:42:02,771 INFO L82 PathProgramCache]: Analyzing trace with hash -102008450, now seen corresponding path program 3 times [2018-02-04 19:42:02,771 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:42:02,772 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:42:02,772 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:02,772 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:42:02,772 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:02,783 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:42:02,791 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:42:02,791 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:42:02,791 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:42:02,792 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-02-04 19:42:02,834 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-02-04 19:42:02,835 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:42:02,839 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:42:02,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:02,878 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:02,919 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:02,919 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:42:02,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:02,956 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,007 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,007 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:42:03,008 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,013 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,013 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-02-04 19:42:03,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:03,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:03,052 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:03,076 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:03,076 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,078 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,089 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,089 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:50, output treesize:45 [2018-02-04 19:42:03,134 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:42:03,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:03,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,143 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,167 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 32 [2018-02-04 19:42:03,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-02-04 19:42:03,171 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,174 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,182 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,182 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:86, output treesize:56 [2018-02-04 19:42:03,207 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-02-04 19:42:03,207 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,223 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,223 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,224 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,225 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,225 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 46 [2018-02-04 19:42:03,225 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,240 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,241 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:73, output treesize:80 [2018-02-04 19:42:03,302 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 56 [2018-02-04 19:42:03,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:03,308 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,316 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,363 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 30 [2018-02-04 19:42:03,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:42:03,378 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,391 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,414 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,415 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:106, output treesize:104 [2018-02-04 19:42:03,542 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,542 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,543 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,546 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 146 [2018-02-04 19:42:03,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:03,551 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,563 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,581 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 38 [2018-02-04 19:42:03,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-02-04 19:42:03,585 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,588 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,602 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:03,602 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:181, output treesize:122 [2018-02-04 19:42:03,633 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,634 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 95 [2018-02-04 19:42:03,634 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,655 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,656 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,657 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,657 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,658 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,658 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,658 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 43 [2018-02-04 19:42:03,659 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,676 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:03,677 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:133, output treesize:124 [2018-02-04 19:42:03,732 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2018-02-04 19:42:03,733 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,754 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,754 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,756 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,756 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,758 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 103 [2018-02-04 19:42:03,761 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 32 [2018-02-04 19:42:03,761 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,769 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,782 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,784 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 36 [2018-02-04 19:42:03,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-02-04 19:42:03,786 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,789 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,800 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:03,800 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:162, output treesize:81 [2018-02-04 19:42:03,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 80 [2018-02-04 19:42:03,888 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-02-04 19:42:03,888 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,890 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,905 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,906 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,906 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,908 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,908 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,912 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:03,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 159 [2018-02-04 19:42:03,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-02-04 19:42:03,917 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,933 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:03,945 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:03,945 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:264, output treesize:126 [2018-02-04 19:42:04,045 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-02-04 19:42:04,046 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:04,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-02-04 19:42:04,047 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:04,049 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:04,063 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:04,063 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:133, output treesize:120 [2018-02-04 19:42:04,166 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:04,166 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:04,167 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:04,168 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:04,168 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:04,169 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:04,169 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:04,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 104 [2018-02-04 19:42:04,182 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 59 [2018-02-04 19:42:04,183 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:04,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-02-04 19:42:04,196 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:04,201 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:04,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-02-04 19:42:04,201 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:04,204 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:04,211 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:04,212 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:121, output treesize:5 [2018-02-04 19:42:04,279 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:42:04,279 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:42:04,279 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-02-04 19:42:04,280 INFO L409 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-02-04 19:42:04,280 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-02-04 19:42:04,280 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2018-02-04 19:42:04,280 INFO L87 Difference]: Start difference. First operand 189 states and 205 transitions. Second operand 29 states. [2018-02-04 19:42:06,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:42:06,054 INFO L93 Difference]: Finished difference Result 243 states and 265 transitions. [2018-02-04 19:42:06,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-02-04 19:42:06,054 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 69 [2018-02-04 19:42:06,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:42:06,055 INFO L225 Difference]: With dead ends: 243 [2018-02-04 19:42:06,055 INFO L226 Difference]: Without dead ends: 243 [2018-02-04 19:42:06,055 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=429, Invalid=2877, Unknown=0, NotChecked=0, Total=3306 [2018-02-04 19:42:06,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-02-04 19:42:06,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 192. [2018-02-04 19:42:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-02-04 19:42:06,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 209 transitions. [2018-02-04 19:42:06,057 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 209 transitions. Word has length 69 [2018-02-04 19:42:06,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:42:06,057 INFO L432 AbstractCegarLoop]: Abstraction has 192 states and 209 transitions. [2018-02-04 19:42:06,057 INFO L433 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-02-04 19:42:06,058 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 209 transitions. [2018-02-04 19:42:06,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-02-04 19:42:06,058 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:42:06,058 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:42:06,058 INFO L371 AbstractCegarLoop]: === Iteration 35 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:42:06,058 INFO L82 PathProgramCache]: Analyzing trace with hash -102008449, now seen corresponding path program 2 times [2018-02-04 19:42:06,058 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:42:06,058 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:42:06,059 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:06,059 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:42:06,059 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:06,066 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:42:06,071 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:42:06,071 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:42:06,071 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:42:06,072 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:42:06,104 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 19:42:06,104 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:42:06,107 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:42:06,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:06,109 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,112 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,112 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:42:06,128 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,129 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 19:42:06,130 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,137 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-02-04 19:42:06,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:06,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:06,160 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,162 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:06,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:06,171 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,172 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,178 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,179 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:50, output treesize:45 [2018-02-04 19:42:06,212 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2018-02-04 19:42:06,216 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 23 [2018-02-04 19:42:06,216 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,220 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,240 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,242 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:42:06,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 17 [2018-02-04 19:42:06,243 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,247 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,252 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,252 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:92, output treesize:57 [2018-02-04 19:42:06,255 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,255 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,256 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-02-04 19:42:06,256 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:06,269 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,279 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,280 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:84 [2018-02-04 19:42:06,324 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-02-04 19:42:06,328 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:42:06,328 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,333 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,349 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,351 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 81 [2018-02-04 19:42:06,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:42:06,353 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,360 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,373 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:112, output treesize:110 [2018-02-04 19:42:06,442 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,443 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,444 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 184 [2018-02-04 19:42:06,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:06,451 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,462 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,477 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,478 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,479 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 134 [2018-02-04 19:42:06,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:06,484 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,493 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,504 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,504 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:202, output treesize:131 [2018-02-04 19:42:06,519 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 51 [2018-02-04 19:42:06,519 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,536 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,537 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,537 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,538 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,539 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 97 [2018-02-04 19:42:06,539 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,553 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,553 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:178, output treesize:169 [2018-02-04 19:42:06,602 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,602 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,603 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 181 [2018-02-04 19:42:06,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:06,610 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,622 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,640 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,643 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,645 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 131 [2018-02-04 19:42:06,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:06,647 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,657 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,673 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,673 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:195, output treesize:157 [2018-02-04 19:42:06,757 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,766 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 406 treesize of output 238 [2018-02-04 19:42:06,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 1 [2018-02-04 19:42:06,771 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,785 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,903 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:06,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 328 treesize of output 314 [2018-02-04 19:42:06,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 1 [2018-02-04 19:42:06,910 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,923 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:06,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:06,937 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:418, output treesize:244 [2018-02-04 19:42:07,071 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:07,071 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:07,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 139 [2018-02-04 19:42:07,078 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 65 [2018-02-04 19:42:07,079 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:07,101 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 60 [2018-02-04 19:42:07,101 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:07,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 78 [2018-02-04 19:42:07,107 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 19:42:07,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 61 [2018-02-04 19:42:07,137 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:07,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 61 [2018-02-04 19:42:07,139 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:07,161 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:07,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 58 [2018-02-04 19:42:07,189 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2018-02-04 19:42:07,189 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:07,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-02-04 19:42:07,199 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:07,207 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:07,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 58 [2018-02-04 19:42:07,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2018-02-04 19:42:07,210 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:07,220 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-02-04 19:42:07,221 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:07,229 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:07,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:07,248 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 4 variables, input treesize:233, output treesize:37 [2018-02-04 19:42:07,337 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:42:07,337 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:42:07,337 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-04 19:42:07,337 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-04 19:42:07,338 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-04 19:42:07,338 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2018-02-04 19:42:07,338 INFO L87 Difference]: Start difference. First operand 192 states and 209 transitions. Second operand 26 states. [2018-02-04 19:42:09,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:42:09,429 INFO L93 Difference]: Finished difference Result 267 states and 292 transitions. [2018-02-04 19:42:09,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-02-04 19:42:09,429 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 69 [2018-02-04 19:42:09,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:42:09,430 INFO L225 Difference]: With dead ends: 267 [2018-02-04 19:42:09,430 INFO L226 Difference]: Without dead ends: 267 [2018-02-04 19:42:09,430 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=299, Invalid=2151, Unknown=0, NotChecked=0, Total=2450 [2018-02-04 19:42:09,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2018-02-04 19:42:09,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 197. [2018-02-04 19:42:09,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-02-04 19:42:09,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 214 transitions. [2018-02-04 19:42:09,432 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 214 transitions. Word has length 69 [2018-02-04 19:42:09,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:42:09,433 INFO L432 AbstractCegarLoop]: Abstraction has 197 states and 214 transitions. [2018-02-04 19:42:09,433 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-04 19:42:09,433 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 214 transitions. [2018-02-04 19:42:09,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-02-04 19:42:09,433 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:42:09,433 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:42:09,434 INFO L371 AbstractCegarLoop]: === Iteration 36 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:42:09,434 INFO L82 PathProgramCache]: Analyzing trace with hash -345591359, now seen corresponding path program 1 times [2018-02-04 19:42:09,434 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:42:09,434 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:42:09,434 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:09,435 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:42:09,435 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:09,444 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:42:09,447 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:42:09,447 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:42:09,447 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:42:09,447 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:42:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:09,481 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:42:09,559 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:09,559 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,576 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,577 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-02-04 19:42:09,594 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:09,595 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:09,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:42:09,595 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,602 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:42:09,602 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,608 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-02-04 19:42:09,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-02-04 19:42:09,634 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:09,643 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:09,643 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,644 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,650 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,650 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:49, output treesize:28 [2018-02-04 19:42:09,679 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:09,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-02-04 19:42:09,682 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:09,682 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,685 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,690 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:09,690 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:34 [2018-02-04 19:42:09,700 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:09,701 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:09,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:42:09,701 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,706 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:09,707 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:33 [2018-02-04 19:42:09,737 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:09,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 34 [2018-02-04 19:42:09,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:09,741 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,744 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:09,751 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:46, output treesize:39 [2018-02-04 19:42:09,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 68 [2018-02-04 19:42:09,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 49 [2018-02-04 19:42:09,822 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:09,837 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 56 [2018-02-04 19:42:09,838 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 19:42:09,844 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:42:09,852 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:09,852 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:87, output treesize:57 [2018-02-04 19:42:10,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-02-04 19:42:10,160 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:10,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 31 [2018-02-04 19:42:10,165 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:10,173 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:10,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:42:10,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2018-02-04 19:42:10,191 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 19:42:10,194 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:42:10,206 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-02-04 19:42:10,206 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:66, output treesize:78 [2018-02-04 19:42:10,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:42:10,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 8 [2018-02-04 19:42:10,452 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-02-04 19:42:10,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:42:10,457 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:42:10,457 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:15 [2018-02-04 19:42:10,516 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:42:10,516 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:42:10,516 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-02-04 19:42:10,516 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-04 19:42:10,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-04 19:42:10,516 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2018-02-04 19:42:10,516 INFO L87 Difference]: Start difference. First operand 197 states and 214 transitions. Second operand 31 states. [2018-02-04 19:42:12,517 WARN L146 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 78 DAG size of output 67 [2018-02-04 19:42:12,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:42:12,673 INFO L93 Difference]: Finished difference Result 213 states and 229 transitions. [2018-02-04 19:42:12,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-02-04 19:42:12,673 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 71 [2018-02-04 19:42:12,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:42:12,674 INFO L225 Difference]: With dead ends: 213 [2018-02-04 19:42:12,674 INFO L226 Difference]: Without dead ends: 212 [2018-02-04 19:42:12,675 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=472, Invalid=3188, Unknown=0, NotChecked=0, Total=3660 [2018-02-04 19:42:12,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-02-04 19:42:12,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 196. [2018-02-04 19:42:12,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2018-02-04 19:42:12,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 212 transitions. [2018-02-04 19:42:12,678 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 212 transitions. Word has length 71 [2018-02-04 19:42:12,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:42:12,679 INFO L432 AbstractCegarLoop]: Abstraction has 196 states and 212 transitions. [2018-02-04 19:42:12,679 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-04 19:42:12,679 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 212 transitions. [2018-02-04 19:42:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-02-04 19:42:12,679 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:42:12,679 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:42:12,680 INFO L371 AbstractCegarLoop]: === Iteration 37 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:42:12,680 INFO L82 PathProgramCache]: Analyzing trace with hash -345541708, now seen corresponding path program 1 times [2018-02-04 19:42:12,680 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:42:12,680 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:42:12,680 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:12,680 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:42:12,680 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:12,688 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:42:12,696 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:42:12,696 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:42:12,697 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:42:12,697 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:42:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:12,727 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:42:12,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:12,740 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:12,744 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,748 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-02-04 19:42:12,780 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:12,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:42:12,781 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,794 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:12,794 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:12,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-02-04 19:42:12,795 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,805 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,805 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-02-04 19:42:12,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-02-04 19:42:12,830 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:12,842 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:12,843 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,844 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,853 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:12,854 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:12,854 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,856 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,862 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,862 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:64, output treesize:45 [2018-02-04 19:42:12,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-02-04 19:42:12,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 10 [2018-02-04 19:42:12,874 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,875 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:12,880 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:30 [2018-02-04 19:42:12,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-02-04 19:42:12,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:12,903 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,905 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,910 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:12,910 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:30 [2018-02-04 19:42:12,918 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:12,918 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:12,919 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:12,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2018-02-04 19:42:12,919 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,924 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:12,924 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:28 [2018-02-04 19:42:12,947 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:12,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:12,948 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,949 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-02-04 19:42:12,960 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:12,960 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,963 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,970 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:12,970 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:54, output treesize:40 [2018-02-04 19:42:12,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-02-04 19:42:12,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2018-02-04 19:42:12,988 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:12,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:12,995 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:49, output treesize:20 [2018-02-04 19:42:13,039 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-02-04 19:42:13,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:13,040 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:13,043 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:13,047 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:13,047 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:16 [2018-02-04 19:42:13,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:42:13,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-02-04 19:42:13,145 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-02-04 19:42:13,147 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:42:13,151 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-02-04 19:42:13,151 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:12 [2018-02-04 19:42:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-02-04 19:42:13,237 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:42:13,237 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-04 19:42:13,237 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 19:42:13,237 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 19:42:13,237 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2018-02-04 19:42:13,237 INFO L87 Difference]: Start difference. First operand 196 states and 212 transitions. Second operand 23 states. [2018-02-04 19:42:14,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:42:14,071 INFO L93 Difference]: Finished difference Result 206 states and 223 transitions. [2018-02-04 19:42:14,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-02-04 19:42:14,072 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2018-02-04 19:42:14,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:42:14,072 INFO L225 Difference]: With dead ends: 206 [2018-02-04 19:42:14,072 INFO L226 Difference]: Without dead ends: 206 [2018-02-04 19:42:14,073 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=363, Invalid=1799, Unknown=0, NotChecked=0, Total=2162 [2018-02-04 19:42:14,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-02-04 19:42:14,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2018-02-04 19:42:14,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-02-04 19:42:14,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 223 transitions. [2018-02-04 19:42:14,074 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 223 transitions. Word has length 71 [2018-02-04 19:42:14,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:42:14,075 INFO L432 AbstractCegarLoop]: Abstraction has 203 states and 223 transitions. [2018-02-04 19:42:14,075 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 19:42:14,075 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 223 transitions. [2018-02-04 19:42:14,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-02-04 19:42:14,075 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:42:14,075 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:42:14,075 INFO L371 AbstractCegarLoop]: === Iteration 38 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:42:14,076 INFO L82 PathProgramCache]: Analyzing trace with hash 2000251179, now seen corresponding path program 2 times [2018-02-04 19:42:14,076 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:42:14,076 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:42:14,076 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:14,076 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:42:14,076 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:14,083 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:42:14,088 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:42:14,088 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:42:14,089 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:42:14,089 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:42:14,115 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 19:42:14,115 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:42:14,119 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:42:14,122 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:14,122 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,125 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,125 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:42:14,165 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,165 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,166 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 19:42:14,166 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,173 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,173 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:28 [2018-02-04 19:42:14,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:14,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:14,194 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,195 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,201 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,201 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:40 [2018-02-04 19:42:14,234 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:42:14,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:14,237 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,239 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,245 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:14,245 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:66, output treesize:34 [2018-02-04 19:42:14,254 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,255 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,255 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-02-04 19:42:14,256 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,265 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:14,265 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:65 [2018-02-04 19:42:14,294 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,296 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2018-02-04 19:42:14,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:14,297 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,302 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,311 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:14,312 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:83, output treesize:77 [2018-02-04 19:42:14,366 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,367 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 103 [2018-02-04 19:42:14,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:14,372 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,378 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,387 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:14,387 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:122, output treesize:95 [2018-02-04 19:42:14,403 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,404 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,404 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,405 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 129 [2018-02-04 19:42:14,405 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,420 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:14,420 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:121, output treesize:145 [2018-02-04 19:42:14,469 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,470 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 121 [2018-02-04 19:42:14,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:14,476 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,486 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 22 [2018-02-04 19:42:14,508 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-02-04 19:42:14,508 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,509 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,528 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:14,528 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:171, output treesize:175 [2018-02-04 19:42:14,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 15 [2018-02-04 19:42:14,559 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-02-04 19:42:14,559 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,577 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:14,577 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:262, output treesize:223 [2018-02-04 19:42:14,639 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 157 [2018-02-04 19:42:14,640 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-02-04 19:42:14,641 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,650 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,666 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:14,667 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:274, output treesize:199 [2018-02-04 19:42:14,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 109 [2018-02-04 19:42:14,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2018-02-04 19:42:14,770 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:14,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2018-02-04 19:42:14,781 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:14,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 30 [2018-02-04 19:42:14,793 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:14,806 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:14,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:14,826 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:208, output treesize:108 [2018-02-04 19:42:14,924 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:14,924 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 51 [2018-02-04 19:42:14,924 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:14,934 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:14,934 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:55, output treesize:37 [2018-02-04 19:42:14,991 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 19:42:14,991 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:42:14,991 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-02-04 19:42:14,991 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-02-04 19:42:14,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-02-04 19:42:14,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2018-02-04 19:42:14,992 INFO L87 Difference]: Start difference. First operand 203 states and 223 transitions. Second operand 28 states. [2018-02-04 19:42:16,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:42:16,583 INFO L93 Difference]: Finished difference Result 264 states and 292 transitions. [2018-02-04 19:42:16,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-02-04 19:42:16,583 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 71 [2018-02-04 19:42:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:42:16,584 INFO L225 Difference]: With dead ends: 264 [2018-02-04 19:42:16,584 INFO L226 Difference]: Without dead ends: 264 [2018-02-04 19:42:16,584 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=362, Invalid=2290, Unknown=0, NotChecked=0, Total=2652 [2018-02-04 19:42:16,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-02-04 19:42:16,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 237. [2018-02-04 19:42:16,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-02-04 19:42:16,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 269 transitions. [2018-02-04 19:42:16,587 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 269 transitions. Word has length 71 [2018-02-04 19:42:16,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:42:16,588 INFO L432 AbstractCegarLoop]: Abstraction has 237 states and 269 transitions. [2018-02-04 19:42:16,588 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-02-04 19:42:16,588 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 269 transitions. [2018-02-04 19:42:16,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-02-04 19:42:16,588 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:42:16,588 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:42:16,589 INFO L371 AbstractCegarLoop]: === Iteration 39 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:42:16,589 INFO L82 PathProgramCache]: Analyzing trace with hash 2000251180, now seen corresponding path program 2 times [2018-02-04 19:42:16,589 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:42:16,589 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:42:16,589 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:16,590 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:42:16,590 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:16,600 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:42:16,610 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:42:16,611 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:42:16,611 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:42:16,611 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:42:16,642 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 19:42:16,643 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:42:16,645 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:42:16,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:16,663 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:16,668 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,670 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,671 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-02-04 19:42:16,698 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:16,699 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:16,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 19:42:16,699 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:42:16,711 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,720 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,720 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2018-02-04 19:42:16,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-02-04 19:42:16,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,756 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:16,757 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:16,758 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,759 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:16,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:16,770 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,771 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,778 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,778 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:67, output treesize:48 [2018-02-04 19:42:16,815 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:16,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:42:16,819 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:16,819 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,823 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,838 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:16,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2018-02-04 19:42:16,842 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-02-04 19:42:16,842 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,846 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-02-04 19:42:16,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-02-04 19:42:16,859 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,860 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:16,871 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:112, output treesize:73 [2018-02-04 19:42:16,889 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:16,890 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:16,890 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:16,891 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:16,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 46 [2018-02-04 19:42:16,891 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,906 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:16,906 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:84, output treesize:92 [2018-02-04 19:42:16,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2018-02-04 19:42:16,953 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:16,954 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 41 [2018-02-04 19:42:16,954 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,958 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,978 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:16,980 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:16,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 69 [2018-02-04 19:42:16,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:42:16,982 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:16,989 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,005 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-02-04 19:42:17,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:42:17,019 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,024 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:17,039 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:142, output treesize:100 [2018-02-04 19:42:17,112 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,113 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,113 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,115 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 124 [2018-02-04 19:42:17,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:17,120 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,131 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,150 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 44 [2018-02-04 19:42:17,154 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-02-04 19:42:17,154 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,158 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,176 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 47 [2018-02-04 19:42:17,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-02-04 19:42:17,180 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,184 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,199 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:17,199 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:171, output treesize:149 [2018-02-04 19:42:17,226 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,227 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,227 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,228 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,228 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 86 [2018-02-04 19:42:17,229 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,243 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:17,244 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:154, output treesize:146 [2018-02-04 19:42:17,296 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 45 [2018-02-04 19:42:17,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-02-04 19:42:17,301 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,306 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 84 [2018-02-04 19:42:17,338 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 53 [2018-02-04 19:42:17,339 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,345 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,365 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,365 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,366 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,368 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 148 [2018-02-04 19:42:17,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:17,372 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,386 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:17,404 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:191, output treesize:152 [2018-02-04 19:42:17,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 89 [2018-02-04 19:42:17,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-02-04 19:42:17,516 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,520 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,542 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,548 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 181 [2018-02-04 19:42:17,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-02-04 19:42:17,554 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,566 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 143 [2018-02-04 19:42:17,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2018-02-04 19:42:17,592 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,598 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,613 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:17,613 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:370, output treesize:210 [2018-02-04 19:42:17,699 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,700 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:17,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 117 [2018-02-04 19:42:17,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2018-02-04 19:42:17,703 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:17,716 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:17,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2018-02-04 19:42:17,716 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2018-02-04 19:42:17,727 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:17,735 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:17,750 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-02-04 19:42:17,754 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:17,754 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-02-04 19:42:17,754 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,757 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,770 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:17,770 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:221, output treesize:43 [2018-02-04 19:42:17,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2018-02-04 19:42:17,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 19:42:17,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 19:42:17,851 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,854 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:17,854 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-02-04 19:42:17,854 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,856 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,862 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:17,862 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:53, output treesize:3 [2018-02-04 19:42:17,908 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 19:42:17,908 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:42:17,909 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-02-04 19:42:17,909 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-02-04 19:42:17,909 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-02-04 19:42:17,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2018-02-04 19:42:17,909 INFO L87 Difference]: Start difference. First operand 237 states and 269 transitions. Second operand 28 states. [2018-02-04 19:42:20,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:42:20,125 INFO L93 Difference]: Finished difference Result 262 states and 289 transitions. [2018-02-04 19:42:20,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-02-04 19:42:20,125 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 71 [2018-02-04 19:42:20,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:42:20,126 INFO L225 Difference]: With dead ends: 262 [2018-02-04 19:42:20,126 INFO L226 Difference]: Without dead ends: 262 [2018-02-04 19:42:20,126 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=335, Invalid=2527, Unknown=0, NotChecked=0, Total=2862 [2018-02-04 19:42:20,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-02-04 19:42:20,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 228. [2018-02-04 19:42:20,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-02-04 19:42:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 258 transitions. [2018-02-04 19:42:20,128 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 258 transitions. Word has length 71 [2018-02-04 19:42:20,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:42:20,128 INFO L432 AbstractCegarLoop]: Abstraction has 228 states and 258 transitions. [2018-02-04 19:42:20,128 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-02-04 19:42:20,128 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 258 transitions. [2018-02-04 19:42:20,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-04 19:42:20,129 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:42:20,129 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:42:20,129 INFO L371 AbstractCegarLoop]: === Iteration 40 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:42:20,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1353097194, now seen corresponding path program 1 times [2018-02-04 19:42:20,129 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:42:20,129 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:42:20,129 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:20,129 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:42:20,130 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:20,135 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:42:20,138 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:42:20,138 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:42:20,139 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:42:20,139 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:42:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:20,163 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:42:20,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:20,199 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:20,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,208 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,208 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:18 [2018-02-04 19:42:20,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-02-04 19:42:20,229 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:42:20,229 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,230 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,237 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,237 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:40, output treesize:31 [2018-02-04 19:42:20,249 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:42:20,250 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,290 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,291 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-02-04 19:42:20,292 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,307 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,308 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:52 [2018-02-04 19:42:20,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:20,354 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:20,354 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,356 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:20,382 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:20,382 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,384 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2018-02-04 19:42:20,409 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,410 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 19:42:20,410 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,413 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,430 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,430 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:104, output treesize:89 [2018-02-04 19:42:20,494 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 68 [2018-02-04 19:42:20,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:20,500 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,508 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,537 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2018-02-04 19:42:20,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-02-04 19:42:20,542 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,547 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,572 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,574 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 35 [2018-02-04 19:42:20,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2018-02-04 19:42:20,577 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,582 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,603 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:20,604 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:148, output treesize:110 [2018-02-04 19:42:20,630 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,631 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,632 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,632 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 53 [2018-02-04 19:42:20,633 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,667 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,668 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,669 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,669 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,670 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 52 [2018-02-04 19:42:20,670 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,701 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:20,701 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:127, output treesize:134 [2018-02-04 19:42:20,766 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,769 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 90 [2018-02-04 19:42:20,772 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:42:20,772 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,785 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,827 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,828 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,830 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 71 [2018-02-04 19:42:20,835 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,844 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 82 [2018-02-04 19:42:20,845 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:20,858 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,893 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:20,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-02-04 19:42:20,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:42:20,898 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,904 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:20,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:20,937 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:179, output treesize:158 [2018-02-04 19:42:21,043 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,045 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,049 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 181 [2018-02-04 19:42:21,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:42:21,083 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,099 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,126 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,127 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,127 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2018-02-04 19:42:21,132 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 15 [2018-02-04 19:42:21,132 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 19:42:21,137 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,138 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 71 [2018-02-04 19:42:21,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 1 [2018-02-04 19:42:21,164 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,167 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,185 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:21,185 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:275, output treesize:153 [2018-02-04 19:42:21,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-02-04 19:42:21,284 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:21,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2018-02-04 19:42:21,285 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,287 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,306 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:21,306 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:165, output treesize:138 [2018-02-04 19:42:21,482 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 55 [2018-02-04 19:42:21,483 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,497 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:21,497 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:154, output treesize:113 [2018-02-04 19:42:21,565 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,565 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,566 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 100 [2018-02-04 19:42:21,566 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,582 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:21,583 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:119, output treesize:97 [2018-02-04 19:42:21,692 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,692 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,693 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:21,693 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,694 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 76 [2018-02-04 19:42:21,705 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 52 [2018-02-04 19:42:21,707 INFO L267 ElimStorePlain]: Start of recursive call 3: 9 dim-0 vars, End of recursive call: 9 dim-0 vars, and 8 xjuncts. [2018-02-04 19:42:21,738 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:21,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 54 [2018-02-04 19:42:21,743 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 19:42:21,744 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,745 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:21,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 50 [2018-02-04 19:42:21,746 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,747 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:21,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2018-02-04 19:42:21,748 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,749 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:21,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2018-02-04 19:42:21,749 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,776 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-02-04 19:42:21,803 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 4 xjuncts. [2018-02-04 19:42:21,803 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:112, output treesize:134 [2018-02-04 19:42:21,919 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,920 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,920 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:21,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 36 [2018-02-04 19:42:21,921 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:21,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:21,930 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:28 [2018-02-04 19:42:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-02-04 19:42:22,002 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:42:22,002 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-02-04 19:42:22,002 INFO L409 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-02-04 19:42:22,003 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-02-04 19:42:22,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1005, Unknown=0, NotChecked=0, Total=1122 [2018-02-04 19:42:22,003 INFO L87 Difference]: Start difference. First operand 228 states and 258 transitions. Second operand 34 states. [2018-02-04 19:42:23,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:42:23,915 INFO L93 Difference]: Finished difference Result 241 states and 272 transitions. [2018-02-04 19:42:23,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 19:42:23,915 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 73 [2018-02-04 19:42:23,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:42:23,916 INFO L225 Difference]: With dead ends: 241 [2018-02-04 19:42:23,916 INFO L226 Difference]: Without dead ends: 241 [2018-02-04 19:42:23,916 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=405, Invalid=2901, Unknown=0, NotChecked=0, Total=3306 [2018-02-04 19:42:23,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2018-02-04 19:42:23,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 232. [2018-02-04 19:42:23,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-02-04 19:42:23,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 263 transitions. [2018-02-04 19:42:23,919 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 263 transitions. Word has length 73 [2018-02-04 19:42:23,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:42:23,919 INFO L432 AbstractCegarLoop]: Abstraction has 232 states and 263 transitions. [2018-02-04 19:42:23,919 INFO L433 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-02-04 19:42:23,919 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 263 transitions. [2018-02-04 19:42:23,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-04 19:42:23,920 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:42:23,920 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:42:23,920 INFO L371 AbstractCegarLoop]: === Iteration 41 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:42:23,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1353097193, now seen corresponding path program 1 times [2018-02-04 19:42:23,920 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:42:23,920 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:42:23,921 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:23,921 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:42:23,921 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:23,932 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:42:23,939 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:42:23,939 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:42:23,940 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:42:23,940 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:42:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:23,980 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:42:23,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:23,988 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:23,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:23,991 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:42:24,020 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,021 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-02-04 19:42:24,022 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:24,032 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,041 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,041 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-02-04 19:42:24,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:24,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:24,075 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,077 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:24,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:24,093 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,094 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,105 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,105 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:56 [2018-02-04 19:42:24,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:42:24,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-02-04 19:42:24,136 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,137 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,147 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:24,148 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:56 [2018-02-04 19:42:24,182 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 58 [2018-02-04 19:42:24,187 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:24,187 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,200 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,208 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:24,208 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:56 [2018-02-04 19:42:24,219 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-02-04 19:42:24,219 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,231 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,232 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,232 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-02-04 19:42:24,233 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,242 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:24,242 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:62 [2018-02-04 19:42:24,275 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,277 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,278 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 66 [2018-02-04 19:42:24,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:42:24,279 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,285 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-02-04 19:42:24,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:42:24,299 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,300 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,309 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:24,309 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:92, output treesize:82 [2018-02-04 19:42:24,356 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,358 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 133 [2018-02-04 19:42:24,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-02-04 19:42:24,363 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,371 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 66 [2018-02-04 19:42:24,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-02-04 19:42:24,384 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,386 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,393 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:24,393 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:170, output treesize:80 [2018-02-04 19:42:24,562 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,563 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,563 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:24,564 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 94 [2018-02-04 19:42:24,566 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:42:24,570 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 53 [2018-02-04 19:42:24,570 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:24,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 49 [2018-02-04 19:42:24,589 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:42:24,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 71 [2018-02-04 19:42:24,601 INFO L267 ElimStorePlain]: Start of recursive call 5: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 8 xjuncts. [2018-02-04 19:42:24,662 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 10 dim-0 vars, and 6 xjuncts. [2018-02-04 19:42:24,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-02-04 19:42:24,714 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,715 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-02-04 19:42:24,715 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,720 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,721 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-02-04 19:42:24,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:24,724 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-02-04 19:42:24,730 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:42:24,731 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-02-04 19:42:24,732 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,732 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-02-04 19:42:24,733 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,738 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-02-04 19:42:24,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:24,744 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-02-04 19:42:24,750 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:42:24,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-02-04 19:42:24,752 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-02-04 19:42:24,753 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,757 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,758 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2018-02-04 19:42:24,759 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:24,760 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-02-04 19:42:24,760 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,765 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:24,816 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 12 dim-0 vars, and 8 xjuncts. [2018-02-04 19:42:24,817 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 4 variables, input treesize:106, output treesize:167 [2018-02-04 19:42:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-02-04 19:42:24,966 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:42:24,966 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-02-04 19:42:24,966 INFO L409 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-02-04 19:42:24,966 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-02-04 19:42:24,966 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2018-02-04 19:42:24,967 INFO L87 Difference]: Start difference. First operand 232 states and 263 transitions. Second operand 26 states. [2018-02-04 19:42:26,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:42:26,470 INFO L93 Difference]: Finished difference Result 256 states and 286 transitions. [2018-02-04 19:42:26,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-04 19:42:26,470 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 73 [2018-02-04 19:42:26,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:42:26,471 INFO L225 Difference]: With dead ends: 256 [2018-02-04 19:42:26,471 INFO L226 Difference]: Without dead ends: 256 [2018-02-04 19:42:26,471 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=327, Invalid=2223, Unknown=0, NotChecked=0, Total=2550 [2018-02-04 19:42:26,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-02-04 19:42:26,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 234. [2018-02-04 19:42:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-02-04 19:42:26,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 265 transitions. [2018-02-04 19:42:26,473 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 265 transitions. Word has length 73 [2018-02-04 19:42:26,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:42:26,473 INFO L432 AbstractCegarLoop]: Abstraction has 234 states and 265 transitions. [2018-02-04 19:42:26,473 INFO L433 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-02-04 19:42:26,473 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 265 transitions. [2018-02-04 19:42:26,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-04 19:42:26,474 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:42:26,474 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:42:26,474 INFO L371 AbstractCegarLoop]: === Iteration 42 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:42:26,474 INFO L82 PathProgramCache]: Analyzing trace with hash -2017330703, now seen corresponding path program 3 times [2018-02-04 19:42:26,474 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:42:26,474 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:42:26,474 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:26,474 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:42:26,475 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:42:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:42:26,482 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:42:26,485 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:42:26,485 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:42:26,485 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:42:26,486 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-02-04 19:42:26,513 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-02-04 19:42:26,514 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:42:26,516 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:42:26,517 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:42:26,517 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,518 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-02-04 19:42:26,530 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,531 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,531 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 19:42:26,531 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,536 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,536 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-02-04 19:42:26,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:42:26,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:26,554 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,555 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,578 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,578 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:33 [2018-02-04 19:42:26,607 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:42:26,610 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:26,610 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,613 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,617 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,617 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:56, output treesize:30 [2018-02-04 19:42:26,624 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,624 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,625 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-02-04 19:42:26,625 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,632 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,632 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:55 [2018-02-04 19:42:26,657 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2018-02-04 19:42:26,660 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:26,661 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,666 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,672 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,673 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:68, output treesize:73 [2018-02-04 19:42:26,717 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,718 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,722 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 103 [2018-02-04 19:42:26,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:26,723 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,730 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:26,737 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:112, output treesize:85 [2018-02-04 19:42:26,752 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,753 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,754 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,754 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,755 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 129 [2018-02-04 19:42:26,755 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,767 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:26,767 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:108, output treesize:132 [2018-02-04 19:42:26,811 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,812 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,816 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 121 [2018-02-04 19:42:26,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:26,817 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,828 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,840 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:26,840 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:145, output treesize:144 [2018-02-04 19:42:26,915 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,916 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,916 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:26,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 175 [2018-02-04 19:42:26,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:42:26,925 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,937 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:26,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:26,950 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:230, output treesize:156 [2018-02-04 19:42:27,001 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:27,002 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:27,003 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:27,004 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:27,005 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:27,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 258 [2018-02-04 19:42:27,005 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:27,037 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:27,037 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:221, output treesize:267 [2018-02-04 19:42:27,098 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:27,098 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:27,099 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:42:27,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 203 [2018-02-04 19:42:27,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:42:27,109 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:27,127 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:27,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:27,147 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:280, output treesize:261 [2018-02-04 19:42:27,263 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 448 treesize of output 235 [2018-02-04 19:42:27,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 1 [2018-02-04 19:42:27,265 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:27,293 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:42:27,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:27,310 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:453, output treesize:366 [2018-02-04 19:42:27,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 370 treesize of output 162 [2018-02-04 19:42:27,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2018-02-04 19:42:27,383 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:27,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 30 [2018-02-04 19:42:27,398 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:42:27,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 26 [2018-02-04 19:42:27,412 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:27,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2018-02-04 19:42:27,425 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:27,436 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:27,447 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-02-04 19:42:27,448 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:375, output treesize:66 [2018-02-04 19:42:33,621 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:42:33,621 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:42:33,621 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-02-04 19:42:33,621 INFO L409 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-02-04 19:42:33,621 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-02-04 19:42:33,621 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=712, Unknown=3, NotChecked=0, Total=812 [2018-02-04 19:42:33,622 INFO L87 Difference]: Start difference. First operand 234 states and 265 transitions. Second operand 29 states. [2018-02-04 19:43:28,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:43:28,658 INFO L93 Difference]: Finished difference Result 326 states and 365 transitions. [2018-02-04 19:43:28,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 19:43:28,658 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 73 [2018-02-04 19:43:28,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:43:28,659 INFO L225 Difference]: With dead ends: 326 [2018-02-04 19:43:28,659 INFO L226 Difference]: Without dead ends: 326 [2018-02-04 19:43:28,659 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 42.6s TimeCoverageRelationStatistics Valid=400, Invalid=2890, Unknown=16, NotChecked=0, Total=3306 [2018-02-04 19:43:28,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2018-02-04 19:43:28,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 258. [2018-02-04 19:43:28,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2018-02-04 19:43:28,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 291 transitions. [2018-02-04 19:43:28,662 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 291 transitions. Word has length 73 [2018-02-04 19:43:28,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:43:28,662 INFO L432 AbstractCegarLoop]: Abstraction has 258 states and 291 transitions. [2018-02-04 19:43:28,662 INFO L433 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-02-04 19:43:28,662 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 291 transitions. [2018-02-04 19:43:28,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-04 19:43:28,662 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:43:28,662 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:43:28,662 INFO L371 AbstractCegarLoop]: === Iteration 43 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:43:28,662 INFO L82 PathProgramCache]: Analyzing trace with hash -2017330702, now seen corresponding path program 3 times [2018-02-04 19:43:28,662 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:43:28,663 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:43:28,663 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:28,663 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:43:28,663 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:43:28,673 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:43:28,677 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:43:28,677 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:43:28,677 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:43:28,678 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-02-04 19:43:28,718 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-02-04 19:43:28,719 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:43:28,723 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:43:28,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:43:28,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,748 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:43:28,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:43:28,783 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,798 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:28,799 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:28,799 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:43:28,800 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,809 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:25 [2018-02-04 19:43:28,849 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:43:28,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:28,852 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,856 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:43:28,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:28,886 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,887 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,899 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,899 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:56, output treesize:48 [2018-02-04 19:43:28,950 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:28,954 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2018-02-04 19:43:28,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 23 [2018-02-04 19:43:28,956 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,961 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,979 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:28,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-02-04 19:43:28,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 17 [2018-02-04 19:43:28,984 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:28,989 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,001 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:29,001 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:101, output treesize:65 [2018-02-04 19:43:29,021 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,021 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,022 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 46 [2018-02-04 19:43:29,022 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-02-04 19:43:29,041 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,057 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:29,057 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:82, output treesize:95 [2018-02-04 19:43:29,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-02-04 19:43:29,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:43:29,108 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,112 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,135 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 82 [2018-02-04 19:43:29,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:43:29,137 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,146 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,169 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:29,169 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:121, output treesize:115 [2018-02-04 19:43:29,254 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 152 [2018-02-04 19:43:29,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:43:29,258 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,276 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,295 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,296 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,296 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,299 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 163 [2018-02-04 19:43:29,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:43:29,302 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,314 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,328 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:29,328 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:202, output treesize:154 [2018-02-04 19:43:29,351 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,352 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 100 [2018-02-04 19:43:29,352 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,376 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,377 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,378 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,378 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,379 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 153 [2018-02-04 19:43:29,379 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:29,405 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:189, output treesize:218 [2018-02-04 19:43:29,471 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,472 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,473 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,474 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 187 [2018-02-04 19:43:29,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:29,480 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,497 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,527 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 172 [2018-02-04 19:43:29,531 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:29,531 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,542 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:29,569 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:244, output treesize:248 [2018-02-04 19:43:29,688 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,689 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,690 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,690 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,693 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 258 [2018-02-04 19:43:29,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:43:29,701 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,724 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,755 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,758 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 237 [2018-02-04 19:43:29,760 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:43:29,760 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,774 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,801 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:29,801 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:379, output treesize:272 [2018-02-04 19:43:29,839 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,839 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,840 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,841 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,841 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,842 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,842 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 233 [2018-02-04 19:43:29,842 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 237 [2018-02-04 19:43:29,874 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:29,903 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:29,903 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:355, output treesize:345 [2018-02-04 19:43:29,973 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,973 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,974 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,975 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,980 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:29,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 322 treesize of output 253 [2018-02-04 19:43:29,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:29,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:30,008 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:30,038 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:30,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 319 treesize of output 320 [2018-02-04 19:43:30,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:30,043 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:30,062 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:30,103 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:30,103 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:371, output treesize:375 [2018-02-04 19:43:30,263 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:30,267 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:30,278 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 651 treesize of output 312 [2018-02-04 19:43:30,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 1 [2018-02-04 19:43:30,280 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:30,308 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:30,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 553 treesize of output 523 [2018-02-04 19:43:30,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 1 [2018-02-04 19:43:30,345 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:30,364 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:30,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:30,409 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:678, output treesize:468 [2018-02-04 19:43:30,538 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:30,539 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:30,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 448 treesize of output 207 [2018-02-04 19:43:30,546 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:30,550 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 61 [2018-02-04 19:43:30,550 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:30,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 67 [2018-02-04 19:43:30,575 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:30,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 32 [2018-02-04 19:43:30,590 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:30,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 22 [2018-02-04 19:43:30,604 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:30,615 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:30,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-02-04 19:43:30,634 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:30,635 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-02-04 19:43:30,635 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:30,637 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:30,652 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:30,653 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:479, output treesize:51 [2018-02-04 19:43:30,958 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:43:30,958 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:43:30,958 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-04 19:43:30,958 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-04 19:43:30,959 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-04 19:43:30,959 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=839, Unknown=0, NotChecked=0, Total=930 [2018-02-04 19:43:30,959 INFO L87 Difference]: Start difference. First operand 258 states and 291 transitions. Second operand 31 states. [2018-02-04 19:43:35,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:43:35,217 INFO L93 Difference]: Finished difference Result 339 states and 384 transitions. [2018-02-04 19:43:35,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 19:43:35,217 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 73 [2018-02-04 19:43:35,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:43:35,218 INFO L225 Difference]: With dead ends: 339 [2018-02-04 19:43:35,218 INFO L226 Difference]: Without dead ends: 339 [2018-02-04 19:43:35,218 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=381, Invalid=3041, Unknown=0, NotChecked=0, Total=3422 [2018-02-04 19:43:35,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2018-02-04 19:43:35,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 263. [2018-02-04 19:43:35,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-02-04 19:43:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 296 transitions. [2018-02-04 19:43:35,221 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 296 transitions. Word has length 73 [2018-02-04 19:43:35,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:43:35,221 INFO L432 AbstractCegarLoop]: Abstraction has 263 states and 296 transitions. [2018-02-04 19:43:35,222 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-04 19:43:35,222 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 296 transitions. [2018-02-04 19:43:35,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-04 19:43:35,222 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:43:35,222 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:43:35,222 INFO L371 AbstractCegarLoop]: === Iteration 44 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:43:35,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1526326171, now seen corresponding path program 2 times [2018-02-04 19:43:35,222 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:43:35,222 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:43:35,223 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:35,223 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:43:35,223 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:43:35,230 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:43:35,233 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:43:35,233 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:43:35,233 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:43:35,234 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:43:35,264 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 19:43:35,264 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:43:35,268 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:43:35,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:43:35,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:35,379 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,380 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,392 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:43:35,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:35,393 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,394 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,404 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:68, output treesize:64 [2018-02-04 19:43:35,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:35,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-02-04 19:43:35,425 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,426 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,434 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,434 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:64, output treesize:53 [2018-02-04 19:43:35,474 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:35,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 57 [2018-02-04 19:43:35,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:43:35,477 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,483 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,496 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,497 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:71, output treesize:56 [2018-02-04 19:43:35,579 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:35,581 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:35,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 84 [2018-02-04 19:43:35,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:43:35,583 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,593 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,611 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:91, output treesize:96 [2018-02-04 19:43:35,710 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:35,711 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:35,712 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:35,715 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:35,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 148 [2018-02-04 19:43:35,719 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-02-04 19:43:35,719 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,733 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:35,745 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:35,745 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:146, output treesize:101 [2018-02-04 19:43:36,059 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:36,059 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:36,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 83 [2018-02-04 19:43:36,075 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 73 [2018-02-04 19:43:36,076 INFO L267 ElimStorePlain]: Start of recursive call 3: 9 dim-0 vars, End of recursive call: 9 dim-0 vars, and 8 xjuncts. [2018-02-04 19:43:36,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 69 [2018-02-04 19:43:36,142 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:36,143 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:36,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 65 [2018-02-04 19:43:36,144 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:36,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 43 [2018-02-04 19:43:36,146 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:36,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 51 [2018-02-04 19:43:36,147 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:36,206 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-02-04 19:43:36,261 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 4 xjuncts. [2018-02-04 19:43:36,261 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:120, output treesize:236 [2018-02-04 19:43:36,588 WARN L1033 $PredicateComparison]: unable to prove that (exists ((v_prenex_204 Int) (main_~p~0.base Int) (main_~tmp~0.base Int)) (let ((.cse1 (store |c_old(#valid)| v_prenex_204 1))) (let ((.cse0 (store .cse1 main_~tmp~0.base 1))) (and (= (select .cse0 main_~p~0.base) 0) (not (= main_~tmp~0.base 0)) (not (= v_prenex_204 0)) (= (select .cse1 main_~tmp~0.base) 0) (= |c_#valid| (store (store (store (store .cse0 main_~p~0.base 1) v_prenex_204 0) main_~tmp~0.base 0) main_~p~0.base 0)) (not (= 0 main_~p~0.base)) (= 0 (select |c_old(#valid)| v_prenex_204)))))) is different from true [2018-02-04 19:43:36,625 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-02-04 19:43:36,625 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:43:36,626 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-02-04 19:43:36,626 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-04 19:43:36,626 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-04 19:43:36,626 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=732, Unknown=19, NotChecked=54, Total=870 [2018-02-04 19:43:36,626 INFO L87 Difference]: Start difference. First operand 263 states and 296 transitions. Second operand 30 states. [2018-02-04 19:43:38,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:43:38,373 INFO L93 Difference]: Finished difference Result 267 states and 299 transitions. [2018-02-04 19:43:38,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-02-04 19:43:38,373 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 77 [2018-02-04 19:43:38,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:43:38,374 INFO L225 Difference]: With dead ends: 267 [2018-02-04 19:43:38,374 INFO L226 Difference]: Without dead ends: 264 [2018-02-04 19:43:38,374 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=161, Invalid=1788, Unknown=35, NotChecked=86, Total=2070 [2018-02-04 19:43:38,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-02-04 19:43:38,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 263. [2018-02-04 19:43:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-02-04 19:43:38,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 295 transitions. [2018-02-04 19:43:38,376 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 295 transitions. Word has length 77 [2018-02-04 19:43:38,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:43:38,376 INFO L432 AbstractCegarLoop]: Abstraction has 263 states and 295 transitions. [2018-02-04 19:43:38,377 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-04 19:43:38,377 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 295 transitions. [2018-02-04 19:43:38,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-04 19:43:38,377 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:43:38,377 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:43:38,377 INFO L371 AbstractCegarLoop]: === Iteration 45 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:43:38,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1526276520, now seen corresponding path program 2 times [2018-02-04 19:43:38,378 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:43:38,378 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:43:38,378 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:38,378 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:43:38,378 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:43:38,387 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:43:38,390 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:43:38,390 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:43:38,391 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:43:38,391 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:43:38,437 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 19:43:38,437 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:43:38,442 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:43:38,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:43:38,455 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,458 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,458 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:43:38,480 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:38,480 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:38,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:43:38,481 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,488 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-02-04 19:43:38,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:43:38,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:38,514 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,516 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:43:38,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:38,532 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,534 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,544 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:48, output treesize:34 [2018-02-04 19:43:38,580 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:38,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-02-04 19:43:38,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:43:38,585 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,588 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,597 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:38,599 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 32 [2018-02-04 19:43:38,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-02-04 19:43:38,601 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,604 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,619 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,619 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:67, output treesize:37 [2018-02-04 19:43:38,621 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:38,622 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:38,622 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:43:38,622 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,628 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,628 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:39 [2018-02-04 19:43:38,655 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:38,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 30 [2018-02-04 19:43:38,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:43:38,659 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,662 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,671 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:38,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 49 [2018-02-04 19:43:38,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:38,674 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,679 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,686 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:65, output treesize:57 [2018-02-04 19:43:38,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 145 [2018-02-04 19:43:38,754 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 88 [2018-02-04 19:43:38,754 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,783 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 64 [2018-02-04 19:43:38,784 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:38,795 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:43:38,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 74 [2018-02-04 19:43:38,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2018-02-04 19:43:38,817 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,821 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 107 [2018-02-04 19:43:38,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 88 [2018-02-04 19:43:38,843 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:38,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 95 [2018-02-04 19:43:38,876 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:38,890 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:43:38,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:38,907 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:174, output treesize:93 [2018-02-04 19:43:39,284 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:39,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 70 [2018-02-04 19:43:39,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2018-02-04 19:43:39,292 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:39,303 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:39,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 40 [2018-02-04 19:43:39,304 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:39,305 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:39,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2018-02-04 19:43:39,305 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:39,314 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:39,335 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2018-02-04 19:43:39,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 19:43:39,340 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:39,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-02-04 19:43:39,347 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:39,352 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:39,354 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 41 [2018-02-04 19:43:39,355 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:39,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-02-04 19:43:39,356 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:39,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-02-04 19:43:39,361 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:39,365 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:39,379 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-02-04 19:43:39,380 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 5 variables, input treesize:89, output treesize:42 [2018-02-04 19:43:39,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:39,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-02-04 19:43:39,459 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:39,460 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:39,460 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:39,460 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-02-04 19:43:39,498 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:43:39,498 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:43:39,498 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-02-04 19:43:39,498 INFO L409 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-02-04 19:43:39,498 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-02-04 19:43:39,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=967, Unknown=0, NotChecked=0, Total=1056 [2018-02-04 19:43:39,499 INFO L87 Difference]: Start difference. First operand 263 states and 295 transitions. Second operand 33 states. [2018-02-04 19:43:41,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:43:41,180 INFO L93 Difference]: Finished difference Result 262 states and 293 transitions. [2018-02-04 19:43:41,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-02-04 19:43:41,180 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 77 [2018-02-04 19:43:41,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:43:41,181 INFO L225 Difference]: With dead ends: 262 [2018-02-04 19:43:41,181 INFO L226 Difference]: Without dead ends: 225 [2018-02-04 19:43:41,181 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=393, Invalid=3513, Unknown=0, NotChecked=0, Total=3906 [2018-02-04 19:43:41,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-02-04 19:43:41,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2018-02-04 19:43:41,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-02-04 19:43:41,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 256 transitions. [2018-02-04 19:43:41,183 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 256 transitions. Word has length 77 [2018-02-04 19:43:41,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:43:41,183 INFO L432 AbstractCegarLoop]: Abstraction has 225 states and 256 transitions. [2018-02-04 19:43:41,183 INFO L433 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-02-04 19:43:41,183 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 256 transitions. [2018-02-04 19:43:41,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-04 19:43:41,183 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:43:41,183 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:43:41,183 INFO L371 AbstractCegarLoop]: === Iteration 46 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:43:41,183 INFO L82 PathProgramCache]: Analyzing trace with hash 997747661, now seen corresponding path program 4 times [2018-02-04 19:43:41,183 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:43:41,183 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:43:41,184 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:41,184 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:43:41,184 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:43:41,192 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:43:41,198 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:43:41,198 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:43:41,198 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:43:41,198 INFO L109 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-02-04 19:43:41,232 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-02-04 19:43:41,232 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:43:41,235 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:43:41,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:43:41,256 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:43:41,261 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,265 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,265 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-02-04 19:43:41,289 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,290 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 19:43:41,290 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:43:41,299 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,306 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,306 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-02-04 19:43:41,331 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:43:41,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:41,332 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,334 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,343 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,343 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:38 [2018-02-04 19:43:41,388 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2018-02-04 19:43:41,447 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:43:41,447 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,452 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,460 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,460 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:58, output treesize:43 [2018-02-04 19:43:41,481 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,482 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,483 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,483 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 42 [2018-02-04 19:43:41,484 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 40 [2018-02-04 19:43:41,503 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,518 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:60, output treesize:69 [2018-02-04 19:43:41,578 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,581 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 67 [2018-02-04 19:43:41,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:43:41,584 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,595 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,613 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,613 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:94, output treesize:88 [2018-02-04 19:43:41,714 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,714 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,715 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,719 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,722 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 132 [2018-02-04 19:43:41,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:43:41,724 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,742 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:41,762 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:141, output treesize:101 [2018-02-04 19:43:41,805 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,806 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,807 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,808 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,808 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 112 [2018-02-04 19:43:41,809 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,848 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,849 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,850 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,850 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,851 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,852 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,852 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,853 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 87 [2018-02-04 19:43:41,853 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:41,887 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:118, output treesize:147 [2018-02-04 19:43:41,960 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,960 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,961 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,963 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,964 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,965 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:41,965 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 160 [2018-02-04 19:43:41,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2018-02-04 19:43:41,968 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:41,987 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:42,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:42,009 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:167, output treesize:152 [2018-02-04 19:43:42,145 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,145 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,146 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,146 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,147 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,149 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 226 [2018-02-04 19:43:42,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 1 [2018-02-04 19:43:42,155 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:42,174 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:42,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:42,192 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:272, output treesize:209 [2018-02-04 19:43:42,700 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,700 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,701 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,701 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:42,702 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,702 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,703 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,703 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,704 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:42,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 256 [2018-02-04 19:43:42,704 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:42,738 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,738 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,739 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:42,740 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,740 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,740 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,741 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:42,741 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,742 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,742 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 153 [2018-02-04 19:43:42,755 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:42,765 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 71 treesize of output 71 [2018-02-04 19:43:42,768 INFO L267 ElimStorePlain]: Start of recursive call 4: 17 dim-0 vars, End of recursive call: 17 dim-0 vars, and 7 xjuncts. [2018-02-04 19:43:42,825 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 61 [2018-02-04 19:43:42,827 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:42,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 59 [2018-02-04 19:43:42,831 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:42,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 53 [2018-02-04 19:43:42,836 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:42,837 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2018-02-04 19:43:42,837 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:42,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 63 [2018-02-04 19:43:42,842 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:42,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 45 [2018-02-04 19:43:42,843 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:42,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 65 [2018-02-04 19:43:42,848 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:42,977 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:42,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 61 [2018-02-04 19:43:42,981 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:42,983 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,984 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,984 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:42,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 75 [2018-02-04 19:43:42,985 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:42,988 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:42,992 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 67 [2018-02-04 19:43:42,992 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:42,994 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,994 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:42,994 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:42,996 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 69 [2018-02-04 19:43:42,996 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:42,997 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:42,997 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-02-04 19:43:42,997 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:43,000 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:43,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 61 [2018-02-04 19:43:43,003 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:43,005 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:43,009 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 67 [2018-02-04 19:43:43,010 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:43,011 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:43,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-02-04 19:43:43,011 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:43,014 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:43,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 71 [2018-02-04 19:43:43,018 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:43,019 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:43,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 53 [2018-02-04 19:43:43,019 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:43,022 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:43,025 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 65 [2018-02-04 19:43:43,026 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:43,242 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: 22 dim-0 vars, and 11 xjuncts. [2018-02-04 19:43:43,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 33 dim-0 vars, and 11 xjuncts. [2018-02-04 19:43:43,356 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 8 variables, input treesize:278, output treesize:496 [2018-02-04 19:43:43,723 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:43:43,724 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:43:43,724 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-02-04 19:43:43,724 INFO L409 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-02-04 19:43:43,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-02-04 19:43:43,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=958, Unknown=0, NotChecked=0, Total=1056 [2018-02-04 19:43:43,724 INFO L87 Difference]: Start difference. First operand 225 states and 256 transitions. Second operand 33 states. [2018-02-04 19:43:51,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:43:51,036 INFO L93 Difference]: Finished difference Result 244 states and 270 transitions. [2018-02-04 19:43:51,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-02-04 19:43:51,036 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 77 [2018-02-04 19:43:51,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:43:51,037 INFO L225 Difference]: With dead ends: 244 [2018-02-04 19:43:51,037 INFO L226 Difference]: Without dead ends: 244 [2018-02-04 19:43:51,037 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=461, Invalid=3571, Unknown=0, NotChecked=0, Total=4032 [2018-02-04 19:43:51,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-02-04 19:43:51,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 228. [2018-02-04 19:43:51,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-02-04 19:43:51,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 260 transitions. [2018-02-04 19:43:51,040 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 260 transitions. Word has length 77 [2018-02-04 19:43:51,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:43:51,040 INFO L432 AbstractCegarLoop]: Abstraction has 228 states and 260 transitions. [2018-02-04 19:43:51,040 INFO L433 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-02-04 19:43:51,040 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 260 transitions. [2018-02-04 19:43:51,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-02-04 19:43:51,041 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:43:51,041 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:43:51,041 INFO L371 AbstractCegarLoop]: === Iteration 47 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:43:51,041 INFO L82 PathProgramCache]: Analyzing trace with hash 997747662, now seen corresponding path program 3 times [2018-02-04 19:43:51,041 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:43:51,041 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:43:51,042 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:51,042 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:43:51,042 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:43:51,049 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:43:51,071 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:43:51,071 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:43:51,071 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:43:51,071 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-02-04 19:43:51,130 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-02-04 19:43:51,130 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:43:51,134 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:43:51,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:43:51,137 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:43:51,146 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,150 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-02-04 19:43:51,186 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 19:43:51,187 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,201 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,202 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-02-04 19:43:51,202 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,213 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,213 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2018-02-04 19:43:51,248 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:43:51,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:51,250 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,252 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:43:51,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:51,270 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,271 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,283 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,283 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:67, output treesize:68 [2018-02-04 19:43:51,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:43:51,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-02-04 19:43:51,306 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,307 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,317 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:51,318 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:83, output treesize:68 [2018-02-04 19:43:51,348 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 58 [2018-02-04 19:43:51,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:43:51,352 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,357 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,368 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:51,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:91, output treesize:62 [2018-02-04 19:43:51,381 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,381 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 53 [2018-02-04 19:43:51,382 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,402 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,403 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,404 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-02-04 19:43:51,404 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:51,421 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:85, output treesize:92 [2018-02-04 19:43:51,463 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,464 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 77 [2018-02-04 19:43:51,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:43:51,466 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,473 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,487 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:51,488 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:105, output treesize:106 [2018-02-04 19:43:51,553 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,554 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,554 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,557 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 123 [2018-02-04 19:43:51,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:43:51,560 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,570 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,584 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:51,584 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:146, output treesize:126 [2018-02-04 19:43:51,607 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,607 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,608 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,608 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,609 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 73 [2018-02-04 19:43:51,609 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,625 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 116 [2018-02-04 19:43:51,626 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,641 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:51,641 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:140, output treesize:131 [2018-02-04 19:43:51,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 20 [2018-02-04 19:43:51,686 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-02-04 19:43:51,686 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,688 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,711 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,711 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,712 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,713 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,714 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,716 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 154 [2018-02-04 19:43:51,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 32 [2018-02-04 19:43:51,718 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,732 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:51,748 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:161, output treesize:144 [2018-02-04 19:43:51,834 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,835 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,836 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,836 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,838 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,840 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:51,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 286 treesize of output 228 [2018-02-04 19:43:51,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 1 [2018-02-04 19:43:51,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,863 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 94 [2018-02-04 19:43:51,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 1 [2018-02-04 19:43:51,886 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,897 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:51,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:51,911 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:307, output treesize:181 [2018-02-04 19:43:52,259 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,259 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,260 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,261 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,261 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,262 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,262 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,263 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,263 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 214 [2018-02-04 19:43:52,266 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,279 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 92 [2018-02-04 19:43:52,282 INFO L267 ElimStorePlain]: Start of recursive call 3: 17 dim-0 vars, End of recursive call: 17 dim-0 vars, and 7 xjuncts. [2018-02-04 19:43:52,372 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 119 [2018-02-04 19:43:52,378 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:52,380 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 97 [2018-02-04 19:43:52,380 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:52,384 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,388 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 121 [2018-02-04 19:43:52,389 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:52,390 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 91 [2018-02-04 19:43:52,391 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:52,394 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 115 [2018-02-04 19:43:52,398 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:52,401 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 122 treesize of output 109 [2018-02-04 19:43:52,405 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:52,408 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,409 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,409 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,410 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 121 [2018-02-04 19:43:52,411 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:52,698 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,698 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,698 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,700 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 110 [2018-02-04 19:43:52,700 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:52,702 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,702 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 100 [2018-02-04 19:43:52,703 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:52,706 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 122 treesize of output 114 [2018-02-04 19:43:52,712 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:52,716 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,722 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 116 [2018-02-04 19:43:52,722 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:52,725 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,726 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:52,726 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 120 [2018-02-04 19:43:52,728 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:52,731 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,736 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 110 treesize of output 102 [2018-02-04 19:43:52,737 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:52,739 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 106 [2018-02-04 19:43:52,751 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:52,754 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 118 treesize of output 110 [2018-02-04 19:43:52,759 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:52,762 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,766 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 104 [2018-02-04 19:43:52,766 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:52,768 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 90 [2018-02-04 19:43:52,768 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:52,770 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:52,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 88 [2018-02-04 19:43:52,770 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,219 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 22 dim-0 vars, and 11 xjuncts. [2018-02-04 19:43:53,469 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 82 [2018-02-04 19:43:53,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,471 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,484 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:53,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,484 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,494 INFO L267 ElimStorePlain]: Start of recursive call 22: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 80 [2018-02-04 19:43:53,497 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:53,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,498 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,507 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,509 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 80 [2018-02-04 19:43:53,511 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:53,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,511 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,521 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 82 [2018-02-04 19:43:53,524 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:53,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,524 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,537 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,537 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,547 INFO L267 ElimStorePlain]: Start of recursive call 29: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 80 [2018-02-04 19:43:53,551 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:53,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,551 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,561 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 80 [2018-02-04 19:43:53,564 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:53,565 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,565 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,574 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,577 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 80 [2018-02-04 19:43:53,578 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:53,579 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,579 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,591 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 82 [2018-02-04 19:43:53,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,595 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,611 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:53,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,612 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,624 INFO L267 ElimStorePlain]: Start of recursive call 38: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 80 [2018-02-04 19:43:53,646 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:53,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,647 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,659 INFO L267 ElimStorePlain]: Start of recursive call 41: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 82 [2018-02-04 19:43:53,663 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:53,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,664 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,677 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,687 INFO L267 ElimStorePlain]: Start of recursive call 43: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,689 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 82 [2018-02-04 19:43:53,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,690 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,703 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:53,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-02-04 19:43:53,703 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,713 INFO L267 ElimStorePlain]: Start of recursive call 46: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:53,881 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 33 dim-0 vars, and 11 xjuncts. [2018-02-04 19:43:53,881 INFO L202 ElimStorePlain]: Needed 48 recursive calls to eliminate 6 variables, input treesize:270, output treesize:639 [2018-02-04 19:43:54,311 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:43:54,311 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:43:54,311 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-02-04 19:43:54,312 INFO L409 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-02-04 19:43:54,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-02-04 19:43:54,312 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=900, Unknown=0, NotChecked=0, Total=992 [2018-02-04 19:43:54,312 INFO L87 Difference]: Start difference. First operand 228 states and 260 transitions. Second operand 32 states. [2018-02-04 19:43:58,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:43:58,570 INFO L93 Difference]: Finished difference Result 263 states and 292 transitions. [2018-02-04 19:43:58,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 19:43:58,571 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 77 [2018-02-04 19:43:58,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:43:58,571 INFO L225 Difference]: With dead ends: 263 [2018-02-04 19:43:58,571 INFO L226 Difference]: Without dead ends: 263 [2018-02-04 19:43:58,572 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=389, Invalid=3151, Unknown=0, NotChecked=0, Total=3540 [2018-02-04 19:43:58,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-02-04 19:43:58,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 233. [2018-02-04 19:43:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2018-02-04 19:43:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 265 transitions. [2018-02-04 19:43:58,574 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 265 transitions. Word has length 77 [2018-02-04 19:43:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:43:58,574 INFO L432 AbstractCegarLoop]: Abstraction has 233 states and 265 transitions. [2018-02-04 19:43:58,574 INFO L433 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-02-04 19:43:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 265 transitions. [2018-02-04 19:43:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-02-04 19:43:58,574 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:43:58,575 INFO L351 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:43:58,575 INFO L371 AbstractCegarLoop]: === Iteration 48 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:43:58,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1942579973, now seen corresponding path program 2 times [2018-02-04 19:43:58,575 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:43:58,575 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:43:58,576 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:58,576 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:43:58,576 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:43:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:43:58,583 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:43:58,586 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:43:58,586 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:43:58,586 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:43:58,587 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:43:58,638 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 19:43:58,638 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:43:58,640 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:43:58,643 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:43:58,643 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,645 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,645 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 19:43:58,669 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:58,669 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:58,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:43:58,670 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,674 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,674 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-02-04 19:43:58,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:43:58,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:58,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,697 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,704 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:28 [2018-02-04 19:43:58,738 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:58,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-02-04 19:43:58,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:43:58,742 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,745 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,749 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,749 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:46, output treesize:31 [2018-02-04 19:43:58,751 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:58,752 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:58,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 19:43:58,752 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,756 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,757 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:30 [2018-02-04 19:43:58,779 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:58,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 34 [2018-02-04 19:43:58,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:58,782 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,790 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,795 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,796 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:36 [2018-02-04 19:43:58,852 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:58,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 68 [2018-02-04 19:43:58,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 39 [2018-02-04 19:43:58,868 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:58,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2018-02-04 19:43:58,889 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:58,899 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:43:58,908 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:58,908 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:63, output treesize:75 [2018-02-04 19:43:59,025 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:59,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 56 [2018-02-04 19:43:59,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:43:59,028 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,035 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,057 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:59,067 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 88 [2018-02-04 19:43:59,069 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 87 [2018-02-04 19:43:59,069 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 68 [2018-02-04 19:43:59,102 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-02-04 19:43:59,124 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:43:59,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 82 [2018-02-04 19:43:59,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-02-04 19:43:59,147 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,154 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2018-02-04 19:43:59,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 19:43:59,157 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,163 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,181 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:59,181 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 6 variables, input treesize:133, output treesize:111 [2018-02-04 19:43:59,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 47 [2018-02-04 19:43:59,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-02-04 19:43:59,237 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,241 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2018-02-04 19:43:59,253 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-02-04 19:43:59,254 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,257 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,263 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:123, output treesize:20 [2018-02-04 19:43:59,311 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 38 [2018-02-04 19:43:59,313 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:43:59,314 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-02-04 19:43:59,314 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2018-02-04 19:43:59,329 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,332 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-02-04 19:43:59,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:43:59,342 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,342 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,347 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:59,348 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:54, output treesize:35 [2018-02-04 19:43:59,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2018-02-04 19:43:59,434 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-02-04 19:43:59,434 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,439 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:59,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-02-04 19:43:59,440 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2018-02-04 19:43:59,444 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,446 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:43:59,454 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 19:43:59,454 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:48, output treesize:64 [2018-02-04 19:43:59,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-02-04 19:43:59,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:43:59,751 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:62, output treesize:48 [2018-02-04 19:43:59,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2018-02-04 19:43:59,842 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:59,842 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-02-04 19:43:59,842 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,845 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-02-04 19:43:59,852 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:43:59,852 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2018-02-04 19:43:59,852 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,854 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,859 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:43:59,859 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:66, output treesize:11 [2018-02-04 19:43:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:43:59,919 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:43:59,919 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-02-04 19:43:59,919 INFO L409 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-02-04 19:43:59,919 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-02-04 19:43:59,919 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1094, Unknown=0, NotChecked=0, Total=1190 [2018-02-04 19:43:59,919 INFO L87 Difference]: Start difference. First operand 233 states and 265 transitions. Second operand 35 states. [2018-02-04 19:44:01,503 WARN L146 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 55 DAG size of output 53 [2018-02-04 19:44:02,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:44:02,496 INFO L93 Difference]: Finished difference Result 261 states and 287 transitions. [2018-02-04 19:44:02,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-02-04 19:44:02,497 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 79 [2018-02-04 19:44:02,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:44:02,498 INFO L225 Difference]: With dead ends: 261 [2018-02-04 19:44:02,498 INFO L226 Difference]: Without dead ends: 261 [2018-02-04 19:44:02,498 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=523, Invalid=4033, Unknown=0, NotChecked=0, Total=4556 [2018-02-04 19:44:02,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2018-02-04 19:44:02,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 235. [2018-02-04 19:44:02,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-02-04 19:44:02,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 267 transitions. [2018-02-04 19:44:02,501 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 267 transitions. Word has length 79 [2018-02-04 19:44:02,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:44:02,501 INFO L432 AbstractCegarLoop]: Abstraction has 235 states and 267 transitions. [2018-02-04 19:44:02,501 INFO L433 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-02-04 19:44:02,501 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 267 transitions. [2018-02-04 19:44:02,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-02-04 19:44:02,502 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:44:02,502 INFO L351 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:44:02,502 INFO L371 AbstractCegarLoop]: === Iteration 49 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr26EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 19:44:02,502 INFO L82 PathProgramCache]: Analyzing trace with hash -2010612982, now seen corresponding path program 5 times [2018-02-04 19:44:02,502 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:44:02,502 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:44:02,503 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:44:02,503 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:44:02,503 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:44:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:44:02,521 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:44:02,525 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 19:44:02,525 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:44:02,525 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:44:02,526 INFO L109 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-02-04 19:44:02,589 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2018-02-04 19:44:02,590 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:44:02,595 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:44:02,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 19:44:02,664 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,677 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:02,677 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:02,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 19:44:02,678 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,689 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,689 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-02-04 19:44:02,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:44:02,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:44:02,718 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,720 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,732 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-02-04 19:44:02,733 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:44:02,733 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,735 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,744 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,745 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:56 [2018-02-04 19:44:02,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-02-04 19:44:02,764 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-02-04 19:44:02,765 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,766 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,772 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,772 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:68, output treesize:53 [2018-02-04 19:44:02,801 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:02,803 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 58 [2018-02-04 19:44:02,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:44:02,805 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,810 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,818 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,818 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:76, output treesize:50 [2018-02-04 19:44:02,836 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:02,836 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:02,837 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:02,837 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:02,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 46 [2018-02-04 19:44:02,838 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-02-04 19:44:02,855 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,869 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,869 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:67, output treesize:80 [2018-02-04 19:44:02,915 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:02,917 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:02,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 77 [2018-02-04 19:44:02,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-02-04 19:44:02,919 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,927 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,940 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:02,941 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:93, output treesize:94 [2018-02-04 19:44:03,011 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,011 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,012 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,015 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 133 [2018-02-04 19:44:03,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:44:03,018 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,029 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,042 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:03,042 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:139, output treesize:112 [2018-02-04 19:44:03,061 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,062 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,062 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,063 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,064 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,064 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 129 [2018-02-04 19:44:03,064 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 82 [2018-02-04 19:44:03,089 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:03,114 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:141, output treesize:164 [2018-02-04 19:44:03,176 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,176 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,177 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,179 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 151 [2018-02-04 19:44:03,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:44:03,182 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,196 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:03,215 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:182, output treesize:170 [2018-02-04 19:44:03,311 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,311 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,312 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,313 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,315 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,320 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 216 [2018-02-04 19:44:03,322 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-02-04 19:44:03,322 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,339 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:03,356 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:275, output treesize:242 [2018-02-04 19:44:03,383 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,383 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,385 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 189 [2018-02-04 19:44:03,386 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,426 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,427 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,427 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,428 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,429 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,429 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,430 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 264 [2018-02-04 19:44:03,430 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:03,462 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:280, output treesize:325 [2018-02-04 19:44:03,544 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,545 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,545 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,546 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,550 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 307 treesize of output 244 [2018-02-04 19:44:03,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 19:44:03,555 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,580 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,610 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:03,610 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:335, output treesize:340 [2018-02-04 19:44:03,742 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,749 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:03,754 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 518 treesize of output 287 [2018-02-04 19:44:03,756 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 1 [2018-02-04 19:44:03,756 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,781 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:44:03,814 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:03,814 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:532, output treesize:445 [2018-02-04 19:44:04,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 184 [2018-02-04 19:44:04,034 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:04,057 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:04,059 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:44:04,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 326 treesize of output 161 [2018-02-04 19:44:04,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 32 [2018-02-04 19:44:04,063 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:04,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 28 [2018-02-04 19:44:04,079 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:04,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2018-02-04 19:44:04,094 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:04,107 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 19:44:04,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2018-02-04 19:44:04,108 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 19:44:04,119 INFO L267 ElimStorePlain]: Start of recursive call 3: 4 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:04,135 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-02-04 19:44:04,135 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:423, output treesize:66 [2018-02-04 19:44:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:44:09,829 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:44:09,830 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-02-04 19:44:09,830 INFO L409 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-02-04 19:44:09,830 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-02-04 19:44:09,830 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=999, Unknown=2, NotChecked=0, Total=1122 [2018-02-04 19:44:09,830 INFO L87 Difference]: Start difference. First operand 235 states and 267 transitions. Second operand 34 states. Received shutdown request... [2018-02-04 19:44:15,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 19:44:15,874 WARN L491 AbstractCegarLoop]: Verification canceled [2018-02-04 19:44:15,878 WARN L185 ceAbstractionStarter]: Timeout [2018-02-04 19:44:15,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 07:44:15 BoogieIcfgContainer [2018-02-04 19:44:15,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 19:44:15,878 INFO L168 Benchmark]: Toolchain (without parser) took 194295.16 ms. Allocated memory was 405.3 MB in the beginning and 833.1 MB in the end (delta: 427.8 MB). Free memory was 362.0 MB in the beginning and 512.8 MB in the end (delta: -150.9 MB). Peak memory consumption was 276.9 MB. Max. memory is 5.3 GB. [2018-02-04 19:44:15,879 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 405.3 MB. Free memory is still 367.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 19:44:15,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.76 ms. Allocated memory is still 405.3 MB. Free memory was 362.0 MB in the beginning and 351.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 19:44:15,879 INFO L168 Benchmark]: Boogie Preprocessor took 32.35 ms. Allocated memory is still 405.3 MB. Free memory was 351.4 MB in the beginning and 348.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 19:44:15,879 INFO L168 Benchmark]: RCFGBuilder took 385.98 ms. Allocated memory is still 405.3 MB. Free memory was 348.7 MB in the beginning and 323.5 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 5.3 GB. [2018-02-04 19:44:15,880 INFO L168 Benchmark]: TraceAbstraction took 193704.82 ms. Allocated memory was 405.3 MB in the beginning and 833.1 MB in the end (delta: 427.8 MB). Free memory was 323.5 MB in the beginning and 512.8 MB in the end (delta: -189.4 MB). Peak memory consumption was 238.5 MB. Max. memory is 5.3 GB. [2018-02-04 19:44:15,880 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 405.3 MB. Free memory is still 367.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 168.76 ms. Allocated memory is still 405.3 MB. Free memory was 362.0 MB in the beginning and 351.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.35 ms. Allocated memory is still 405.3 MB. Free memory was 351.4 MB in the beginning and 348.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 385.98 ms. Allocated memory is still 405.3 MB. Free memory was 348.7 MB in the beginning and 323.5 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 193704.82 ms. Allocated memory was 405.3 MB in the beginning and 833.1 MB in the end (delta: 427.8 MB). Free memory was 323.5 MB in the beginning and 512.8 MB in the end (delta: -189.4 MB). Peak memory consumption was 238.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 642). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 651). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 661). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 664). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 663). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 637). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 655). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 658). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 666). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 637). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 651). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 643). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 661). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 664). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 658). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 645). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 626]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 626). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 643). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 663). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 648). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 666). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 645). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 648). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 642). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 655). Cancelled while BasicCegarLoop was constructing difference of abstraction (235states) and interpolant automaton (currently 7 states, 34 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 38 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 83 locations, 27 error locations. TIMEOUT Result, 193.6s OverallTime, 49 OverallIterations, 5 TraceHistogramMax, 139.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2635 SDtfs, 14110 SDslu, 26794 SDs, 0 SdLazy, 34285 SolverSat, 2829 SolverUnsat, 115 SolverUnknown, 0 SolverNotchecked, 58.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3211 GetRequests, 1386 SyntacticMatches, 31 SemanticMatches, 1793 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 17497 ImplicationChecksByTransitivity, 106.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 48 MinimizatonAttempts, 1652 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 52.3s InterpolantComputationTime, 4848 NumberOfCodeBlocks, 4844 NumberOfCodeBlocksAsserted, 115 NumberOfCheckSat, 2599 ConstructedInterpolants, 1178 QuantifiedInterpolants, 10847275 SizeOfPredicates, 891 NumberOfNonLiveVariables, 8994 ConjunctsInSsa, 2409 ConjunctsInUnsatCore, 51 InterpolantComputations, 12 PerfectInterpolantSequences, 117/1299 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/alternating_list_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_19-44-15-885.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/alternating_list_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_19-44-15-885.csv Completed graceful shutdown