/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/array-tiling/pnr4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:25:44,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:25:44,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:25:44,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 23:25:44,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 23:25:44,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 23:25:44,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 23:25:44,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 23:25:44,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 23:25:44,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 23:25:44,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 23:25:44,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 23:25:44,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:25:44,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:25:44,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:25:44,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:25:44,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:25:44,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:25:44,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:25:44,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:25:44,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:25:44,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:25:44,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:25:44,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:25:44,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 23:25:44,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 23:25:44,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 23:25:44,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 23:25:44,462 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-23 23:25:44,481 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:25:44,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:25:44,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:25:44,482 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:25:44,483 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:25:44,483 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:25:44,483 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:25:44,483 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:25:44,483 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:25:44,484 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:25:44,485 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:25:44,485 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:25:44,485 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:25:44,486 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:25:44,486 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:25:44,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:25:44,487 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:25:44,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:25:44,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:25:44,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:25:44,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:25:44,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:25:44,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:25:44,489 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:25:44,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:25:44,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:25:44,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:25:44,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:25:44,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:25:44,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:25:44,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:25:44,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:25:44,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:25:44,492 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:25:44,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:25:44,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:25:44,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:25:44,493 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:25:44,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:25:44,839 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:25:44,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:25:44,844 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:25:44,844 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:25:44,845 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/pnr4.c [2019-11-23 23:25:44,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/207df1001/223d96d8899c4612a448359f5f72f90f/FLAG76ee3c711 [2019-11-23 23:25:45,408 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:25:45,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/pnr4.c [2019-11-23 23:25:45,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/207df1001/223d96d8899c4612a448359f5f72f90f/FLAG76ee3c711 [2019-11-23 23:25:45,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/207df1001/223d96d8899c4612a448359f5f72f90f [2019-11-23 23:25:45,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:25:45,845 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:25:45,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:25:45,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:25:45,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:25:45,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:45" (1/1) ... [2019-11-23 23:25:45,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79344d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:45, skipping insertion in model container [2019-11-23 23:25:45,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:45" (1/1) ... [2019-11-23 23:25:45,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:25:45,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:25:46,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:25:46,100 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:25:46,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:25:46,227 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:25:46,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46 WrapperNode [2019-11-23 23:25:46,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:25:46,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:25:46,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:25:46,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:25:46,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46" (1/1) ... [2019-11-23 23:25:46,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46" (1/1) ... [2019-11-23 23:25:46,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:25:46,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:25:46,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:25:46,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:25:46,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46" (1/1) ... [2019-11-23 23:25:46,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46" (1/1) ... [2019-11-23 23:25:46,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46" (1/1) ... [2019-11-23 23:25:46,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46" (1/1) ... [2019-11-23 23:25:46,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46" (1/1) ... [2019-11-23 23:25:46,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46" (1/1) ... [2019-11-23 23:25:46,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46" (1/1) ... [2019-11-23 23:25:46,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:25:46,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:25:46,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:25:46,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:25:46,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:25:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 23:25:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-23 23:25:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:25:46,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:25:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 23:25:46,999 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:25:47,000 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-23 23:25:47,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:47 BoogieIcfgContainer [2019-11-23 23:25:47,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:25:47,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:25:47,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:25:47,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:25:47,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:25:45" (1/3) ... [2019-11-23 23:25:47,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c8072e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:47, skipping insertion in model container [2019-11-23 23:25:47,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:46" (2/3) ... [2019-11-23 23:25:47,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c8072e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:47, skipping insertion in model container [2019-11-23 23:25:47,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:47" (3/3) ... [2019-11-23 23:25:47,010 INFO L109 eAbstractionObserver]: Analyzing ICFG pnr4.c [2019-11-23 23:25:47,020 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:25:47,028 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:25:47,037 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:25:47,058 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:25:47,058 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:25:47,058 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:25:47,058 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:25:47,058 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:25:47,059 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:25:47,059 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:25:47,059 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:25:47,070 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-23 23:25:47,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 23:25:47,076 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:25:47,077 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:25:47,077 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:25:47,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:25:47,084 INFO L82 PathProgramCache]: Analyzing trace with hash -718225606, now seen corresponding path program 1 times [2019-11-23 23:25:47,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:25:47,095 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054192078] [2019-11-23 23:25:47,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:25:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:25:47,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:47,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054192078] [2019-11-23 23:25:47,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:25:47,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 23:25:47,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485270043] [2019-11-23 23:25:47,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:25:47,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:25:47,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:25:47,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:25:47,412 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2019-11-23 23:25:47,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:25:47,486 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2019-11-23 23:25:47,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:25:47,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-23 23:25:47,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:25:47,500 INFO L225 Difference]: With dead ends: 24 [2019-11-23 23:25:47,501 INFO L226 Difference]: Without dead ends: 10 [2019-11-23 23:25:47,504 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:25:47,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-23 23:25:47,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-23 23:25:47,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-23 23:25:47,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-23 23:25:47,548 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2019-11-23 23:25:47,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:25:47,549 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-23 23:25:47,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:25:47,549 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-23 23:25:47,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 23:25:47,550 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:25:47,550 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:25:47,551 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:25:47,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:25:47,551 INFO L82 PathProgramCache]: Analyzing trace with hash -782593266, now seen corresponding path program 1 times [2019-11-23 23:25:47,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:25:47,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586625209] [2019-11-23 23:25:47,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:25:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:25:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:48,009 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586625209] [2019-11-23 23:25:48,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511181406] [2019-11-23 23:25:48,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:25:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:25:48,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-23 23:25:48,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:25:48,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,148 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,150 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,152 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,158 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:25:48,401 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:48,454 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:48,482 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:48,508 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:48,533 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:48,550 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:48,589 INFO L237 Elim1Store]: Index analysis took 228 ms [2019-11-23 23:25:48,899 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 45 [2019-11-23 23:25:48,899 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-23 23:25:53,178 WARN L192 SmtUtils]: Spent 4.28 s on a formula simplification that was a NOOP. DAG size: 236 [2019-11-23 23:25:53,179 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:25:53,268 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:53,288 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:53,303 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:53,321 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:53,341 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:53,368 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:53,643 INFO L237 Elim1Store]: Index analysis took 394 ms [2019-11-23 23:25:54,009 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2019-11-23 23:25:54,009 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-23 23:25:57,645 WARN L192 SmtUtils]: Spent 3.63 s on a formula simplification that was a NOOP. DAG size: 232 [2019-11-23 23:25:57,646 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:25:57,720 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:57,735 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:57,749 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:57,762 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:57,779 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:57,803 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:25:57,829 INFO L237 Elim1Store]: Index analysis took 123 ms [2019-11-23 23:25:57,964 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 45 [2019-11-23 23:25:57,964 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:00,886 WARN L192 SmtUtils]: Spent 2.92 s on a formula simplification that was a NOOP. DAG size: 225 [2019-11-23 23:26:00,887 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:00,935 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:00,948 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:00,962 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:00,974 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:00,986 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:01,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:01,185 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 45 [2019-11-23 23:26:01,186 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:03,657 WARN L192 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 218 [2019-11-23 23:26:03,658 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:03,719 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:03,738 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:03,753 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:03,771 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:03,787 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:03,802 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:03,911 INFO L237 Elim1Store]: Index analysis took 209 ms [2019-11-23 23:26:04,092 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2019-11-23 23:26:04,092 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:06,166 WARN L192 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 213 [2019-11-23 23:26:06,167 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:06,210 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:06,221 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:06,227 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:06,234 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:06,243 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:06,251 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:06,427 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 49 [2019-11-23 23:26:06,428 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:08,253 WARN L192 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 206 [2019-11-23 23:26:08,254 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:08,302 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:08,309 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:08,315 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:08,321 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:08,327 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:08,332 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:08,391 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 41 [2019-11-23 23:26:08,392 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:09,985 WARN L192 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 198 [2019-11-23 23:26:09,985 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:10,013 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:10,017 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:10,023 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:10,033 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:10,046 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:10,052 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:10,177 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 49 [2019-11-23 23:26:10,178 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:11,605 WARN L192 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 192 [2019-11-23 23:26:11,605 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:11,636 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:11,641 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:11,646 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:11,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:11,654 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:11,658 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:11,773 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 49 [2019-11-23 23:26:11,774 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:13,067 WARN L192 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 186 [2019-11-23 23:26:13,068 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:13,090 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:13,096 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:13,099 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:13,109 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:13,114 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:13,117 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:13,228 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 49 [2019-11-23 23:26:13,228 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:14,528 WARN L192 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 180 [2019-11-23 23:26:14,529 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:14,553 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:14,564 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:14,568 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:14,573 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:14,578 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:14,581 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:14,723 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2019-11-23 23:26:14,724 INFO L496 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:15,819 WARN L192 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 175 [2019-11-23 23:26:15,820 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:15,841 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:15,846 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:15,850 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:15,853 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:15,855 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:15,857 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:15,933 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 49 [2019-11-23 23:26:15,934 INFO L496 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:16,767 WARN L192 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-11-23 23:26:16,768 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:16,785 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:16,789 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:16,793 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:16,795 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:16,797 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:16,802 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:16,837 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 45 [2019-11-23 23:26:16,838 INFO L496 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:17,510 WARN L192 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-11-23 23:26:17,511 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:17,527 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:17,529 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:17,531 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:17,533 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:17,534 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:17,536 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:17,589 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 49 [2019-11-23 23:26:17,590 INFO L496 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:18,175 WARN L192 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-11-23 23:26:18,175 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:18,191 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,192 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,194 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,197 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,199 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,201 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,251 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2019-11-23 23:26:18,252 INFO L496 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:18,772 WARN L192 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-11-23 23:26:18,772 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:18,787 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,788 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,789 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,790 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,797 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,798 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-23 23:26:18,818 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2019-11-23 23:26:18,819 INFO L496 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2019-11-23 23:26:19,156 WARN L192 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-11-23 23:26:19,157 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:19,163 INFO L496 ElimStorePlain]: Start of recursive call 1: 26 dim-0 vars, 16 dim-2 vars, End of recursive call: and 16 xjuncts. [2019-11-23 23:26:19,164 INFO L221 ElimStorePlain]: Needed 17 recursive calls to eliminate 42 variables, input treesize:654, output treesize:735 [2019-11-23 23:26:19,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:26:19,321 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:26:19,340 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,347 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,373 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,374 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,377 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,381 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,385 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 23:26:19,437 INFO L377 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 50 treesize of output 48 [2019-11-23 23:26:19,480 INFO L377 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 49388 treesize of output 49132 [2019-11-23 23:26:19,512 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:20,218 WARN L192 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 19 [2019-11-23 23:26:20,219 INFO L567 ElimStorePlain]: treesize reduction 48479, result has 0.0 percent of original size [2019-11-23 23:26:20,220 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:20,636 WARN L192 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 317 [2019-11-23 23:26:20,638 INFO L567 ElimStorePlain]: treesize reduction 5, result has 99.3 percent of original size [2019-11-23 23:26:20,665 INFO L377 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 47 treesize of output 45 [2019-11-23 23:26:20,696 INFO L377 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 1524 treesize of output 1516 [2019-11-23 23:26:20,699 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:20,797 INFO L567 ElimStorePlain]: treesize reduction 1483, result has 1.3 percent of original size [2019-11-23 23:26:20,798 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:21,186 WARN L192 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 305 [2019-11-23 23:26:21,189 INFO L567 ElimStorePlain]: treesize reduction 5, result has 99.3 percent of original size [2019-11-23 23:26:21,206 INFO L377 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 47 treesize of output 45 [2019-11-23 23:26:21,250 INFO L377 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 3068 treesize of output 3052 [2019-11-23 23:26:21,255 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:21,337 INFO L567 ElimStorePlain]: treesize reduction 3004, result has 0.5 percent of original size [2019-11-23 23:26:21,337 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:21,522 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 293 [2019-11-23 23:26:21,523 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:21,540 INFO L377 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 44 treesize of output 42 [2019-11-23 23:26:21,573 INFO L377 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 752 treesize of output 748 [2019-11-23 23:26:21,574 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:21,643 INFO L567 ElimStorePlain]: treesize reduction 725, result has 2.3 percent of original size [2019-11-23 23:26:21,643 INFO L496 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:22,012 WARN L192 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 281 [2019-11-23 23:26:22,014 INFO L567 ElimStorePlain]: treesize reduction 5, result has 99.2 percent of original size [2019-11-23 23:26:22,030 INFO L377 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 50 treesize of output 48 [2019-11-23 23:26:22,081 INFO L377 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 3068 treesize of output 3052 [2019-11-23 23:26:22,086 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:22,163 INFO L567 ElimStorePlain]: treesize reduction 3004, result has 0.6 percent of original size [2019-11-23 23:26:22,163 INFO L496 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:22,339 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2019-11-23 23:26:22,340 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:22,357 INFO L377 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 53 treesize of output 51 [2019-11-23 23:26:22,385 INFO L377 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 3068 treesize of output 3052 [2019-11-23 23:26:22,390 INFO L496 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:22,480 INFO L567 ElimStorePlain]: treesize reduction 3004, result has 0.7 percent of original size [2019-11-23 23:26:22,481 INFO L496 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:22,642 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2019-11-23 23:26:22,643 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:22,657 INFO L377 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 47 treesize of output 45 [2019-11-23 23:26:22,716 INFO L377 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 3068 treesize of output 3052 [2019-11-23 23:26:22,720 INFO L496 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:22,842 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 17 [2019-11-23 23:26:22,843 INFO L567 ElimStorePlain]: treesize reduction 2999, result has 0.7 percent of original size [2019-11-23 23:26:22,843 INFO L496 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:23,183 WARN L192 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 245 [2019-11-23 23:26:23,185 INFO L567 ElimStorePlain]: treesize reduction 5, result has 99.1 percent of original size [2019-11-23 23:26:23,216 INFO L377 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 50 treesize of output 48 [2019-11-23 23:26:23,249 INFO L377 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 3068 treesize of output 3052 [2019-11-23 23:26:23,254 INFO L496 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:23,351 INFO L567 ElimStorePlain]: treesize reduction 3004, result has 0.6 percent of original size [2019-11-23 23:26:23,352 INFO L496 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:23,513 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2019-11-23 23:26:23,514 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:23,560 INFO L377 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 44 treesize of output 42 [2019-11-23 23:26:23,588 INFO L377 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 752 treesize of output 748 [2019-11-23 23:26:23,589 INFO L496 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:23,667 INFO L567 ElimStorePlain]: treesize reduction 725, result has 2.3 percent of original size [2019-11-23 23:26:23,668 INFO L496 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:23,980 WARN L192 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 221 [2019-11-23 23:26:23,982 INFO L567 ElimStorePlain]: treesize reduction 5, result has 98.9 percent of original size [2019-11-23 23:26:24,007 INFO L377 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 47 treesize of output 45 [2019-11-23 23:26:24,028 INFO L377 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 366 treesize of output 364 [2019-11-23 23:26:24,030 INFO L496 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:24,076 INFO L567 ElimStorePlain]: treesize reduction 346, result has 5.5 percent of original size [2019-11-23 23:26:24,077 INFO L496 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:24,369 WARN L192 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2019-11-23 23:26:24,370 INFO L567 ElimStorePlain]: treesize reduction 5, result has 98.9 percent of original size [2019-11-23 23:26:24,385 INFO L377 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 47 treesize of output 45 [2019-11-23 23:26:24,417 INFO L377 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 752 treesize of output 748 [2019-11-23 23:26:24,419 INFO L496 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:24,457 INFO L567 ElimStorePlain]: treesize reduction 730, result has 2.0 percent of original size [2019-11-23 23:26:24,458 INFO L496 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:24,617 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-11-23 23:26:24,618 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:24,630 INFO L377 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 47 treesize of output 45 [2019-11-23 23:26:24,665 INFO L377 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 3068 treesize of output 3052 [2019-11-23 23:26:24,669 INFO L496 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:24,767 INFO L567 ElimStorePlain]: treesize reduction 3004, result has 0.5 percent of original size [2019-11-23 23:26:24,768 INFO L496 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:24,897 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2019-11-23 23:26:24,900 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:24,911 INFO L377 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 44 treesize of output 42 [2019-11-23 23:26:24,934 INFO L377 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 3068 treesize of output 3052 [2019-11-23 23:26:24,937 INFO L496 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:25,054 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 15 [2019-11-23 23:26:25,055 INFO L567 ElimStorePlain]: treesize reduction 2999, result has 0.6 percent of original size [2019-11-23 23:26:25,055 INFO L496 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:25,322 WARN L192 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2019-11-23 23:26:25,323 INFO L567 ElimStorePlain]: treesize reduction 5, result has 98.5 percent of original size [2019-11-23 23:26:25,339 INFO L377 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 44 treesize of output 42 [2019-11-23 23:26:25,362 INFO L377 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 752 treesize of output 748 [2019-11-23 23:26:25,364 INFO L496 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:25,420 INFO L567 ElimStorePlain]: treesize reduction 730, result has 1.6 percent of original size [2019-11-23 23:26:25,420 INFO L496 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-23 23:26:25,552 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2019-11-23 23:26:25,553 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 23:26:25,564 INFO L377 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 40 treesize of output 38 [2019-11-23 23:26:25,586 INFO L377 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 366 treesize of output 364 [2019-11-23 23:26:25,587 INFO L496 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 2 xjuncts. [2019-11-23 23:26:25,640 INFO L567 ElimStorePlain]: treesize reduction 346, result has 3.6 percent of original size [2019-11-23 23:26:25,641 INFO L496 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-11-23 23:26:25,676 INFO L567 ElimStorePlain]: treesize reduction 263, result has 4.7 percent of original size [2019-11-23 23:26:25,677 INFO L464 ElimStorePlain]: Eliminatee v_prenex_104 vanished before elimination [2019-11-23 23:26:25,678 INFO L496 ElimStorePlain]: Start of recursive call 1: 64 dim-0 vars, 16 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-11-23 23:26:25,678 INFO L221 ElimStorePlain]: Needed 31 recursive calls to eliminate 80 variables, input treesize:752, output treesize:13 [2019-11-23 23:26:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:26:25,717 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [934960512] [2019-11-23 23:26:25,754 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-23 23:26:25,754 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:26:25,764 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:26:25,773 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:26:25,773 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:26:26,095 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:29,016 WARN L192 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 380 [2019-11-23 23:26:29,044 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:30,998 WARN L192 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2019-11-23 23:26:31,022 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:31,830 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2019-11-23 23:26:32,266 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:32,419 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2019-11-23 23:26:32,758 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:32,887 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2019-11-23 23:26:32,905 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:33,215 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 346 [2019-11-23 23:26:33,234 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:33,596 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:33,704 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2019-11-23 23:26:33,723 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:34,003 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2019-11-23 23:26:34,022 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:34,226 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:34,319 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:34,596 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2019-11-23 23:26:34,717 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:34,887 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:34,968 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:35,153 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:40,711 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:40,764 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:44,854 WARN L192 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 439 DAG size of output: 423 [2019-11-23 23:26:50,782 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:50,811 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:51,246 WARN L192 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 417 [2019-11-23 23:26:51,283 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:54,865 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:56,623 WARN L192 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 409 [2019-11-23 23:26:57,637 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:57,664 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:26:58,480 WARN L192 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 401 [2019-11-23 23:27:00,364 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:00,391 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:00,787 WARN L192 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-11-23 23:27:01,754 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:01,781 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:03,112 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:05,160 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:05,541 WARN L192 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2019-11-23 23:27:05,580 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:05,991 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:07,406 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:07,759 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:08,101 WARN L192 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2019-11-23 23:27:08,127 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:09,181 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:09,216 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:09,605 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:09,922 WARN L192 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 350 [2019-11-23 23:27:09,949 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:10,258 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:10,656 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 341 [2019-11-23 23:27:10,691 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:11,224 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:11,666 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2019-11-23 23:27:11,833 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:12,147 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:12,428 WARN L192 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2019-11-23 23:27:12,570 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:12,808 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:13,097 WARN L192 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 317 [2019-11-23 23:27:13,207 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:13,324 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:13,620 WARN L192 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 303 [2019-11-23 23:27:18,132 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:19,730 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:19,771 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:27:23,067 WARN L192 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 526 DAG size of output: 510