java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 22:02:24,361 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 22:02:24,364 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 22:02:24,382 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 22:02:24,382 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 22:02:24,383 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 22:02:24,386 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 22:02:24,388 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 22:02:24,392 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 22:02:24,395 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 22:02:24,396 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 22:02:24,396 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 22:02:24,401 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 22:02:24,402 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 22:02:24,406 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 22:02:24,407 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 22:02:24,407 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 22:02:24,411 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 22:02:24,420 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 22:02:24,425 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 22:02:24,429 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 22:02:24,431 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 22:02:24,433 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 22:02:24,433 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 22:02:24,433 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 22:02:24,436 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 22:02:24,437 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 22:02:24,438 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 22:02:24,441 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 22:02:24,443 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 22:02:24,443 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 22:02:24,446 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 22:02:24,446 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 22:02:24,446 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 22:02:24,447 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 22:02:24,448 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 22:02:24,448 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 22:02:24,475 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 22:02:24,475 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 22:02:24,476 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 22:02:24,476 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 22:02:24,480 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 22:02:24,480 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 22:02:24,480 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 22:02:24,481 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 22:02:24,481 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 22:02:24,481 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 22:02:24,481 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 22:02:24,481 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 22:02:24,482 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 22:02:24,483 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 22:02:24,483 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 22:02:24,484 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 22:02:24,484 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 22:02:24,484 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 22:02:24,484 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 22:02:24,487 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 22:02:24,487 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 22:02:24,487 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 22:02:24,487 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 22:02:24,488 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 22:02:24,488 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 22:02:24,488 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 22:02:24,489 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 22:02:24,489 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 22:02:24,489 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 22:02:24,489 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 22:02:24,490 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 22:02:24,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 22:02:24,490 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 22:02:24,490 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 22:02:24,490 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 22:02:24,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 22:02:24,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 22:02:24,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 22:02:24,578 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 22:02:24,578 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 22:02:24,579 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-11-07 22:02:24,654 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24b09b6a/28b1b890f3eb4de0960205b7b4f503ac/FLAG3becf3cd4 [2018-11-07 22:02:25,140 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 22:02:25,150 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-11-07 22:02:25,158 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24b09b6a/28b1b890f3eb4de0960205b7b4f503ac/FLAG3becf3cd4 [2018-11-07 22:02:25,174 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24b09b6a/28b1b890f3eb4de0960205b7b4f503ac [2018-11-07 22:02:25,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 22:02:25,186 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 22:02:25,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 22:02:25,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 22:02:25,191 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 22:02:25,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:02:25" (1/1) ... [2018-11-07 22:02:25,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dfde74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25, skipping insertion in model container [2018-11-07 22:02:25,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:02:25" (1/1) ... [2018-11-07 22:02:25,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 22:02:25,229 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 22:02:25,456 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 22:02:25,460 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 22:02:25,489 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 22:02:25,513 INFO L193 MainTranslator]: Completed translation [2018-11-07 22:02:25,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25 WrapperNode [2018-11-07 22:02:25,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 22:02:25,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 22:02:25,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 22:02:25,516 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 22:02:25,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25" (1/1) ... [2018-11-07 22:02:25,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25" (1/1) ... [2018-11-07 22:02:25,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 22:02:25,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 22:02:25,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 22:02:25,546 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 22:02:25,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25" (1/1) ... [2018-11-07 22:02:25,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25" (1/1) ... [2018-11-07 22:02:25,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25" (1/1) ... [2018-11-07 22:02:25,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25" (1/1) ... [2018-11-07 22:02:25,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25" (1/1) ... [2018-11-07 22:02:25,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25" (1/1) ... [2018-11-07 22:02:25,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25" (1/1) ... [2018-11-07 22:02:25,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 22:02:25,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 22:02:25,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 22:02:25,584 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 22:02:25,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 22:02:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 22:02:25,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 22:02:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-07 22:02:25,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 22:02:25,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 22:02:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-07 22:02:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 22:02:25,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 22:02:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-07 22:02:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 22:02:25,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 22:02:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-07 22:02:26,362 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 22:02:26,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:02:26 BoogieIcfgContainer [2018-11-07 22:02:26,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 22:02:26,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 22:02:26,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 22:02:26,367 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 22:02:26,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:02:25" (1/3) ... [2018-11-07 22:02:26,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158b90c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:02:26, skipping insertion in model container [2018-11-07 22:02:26,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:02:25" (2/3) ... [2018-11-07 22:02:26,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158b90c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:02:26, skipping insertion in model container [2018-11-07 22:02:26,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:02:26" (3/3) ... [2018-11-07 22:02:26,371 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array_true-unreach-call.i [2018-11-07 22:02:26,380 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 22:02:26,388 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 22:02:26,407 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 22:02:26,441 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 22:02:26,442 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 22:02:26,442 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 22:02:26,442 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 22:02:26,442 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 22:02:26,443 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 22:02:26,443 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 22:02:26,443 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 22:02:26,465 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2018-11-07 22:02:26,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-07 22:02:26,474 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 22:02:26,475 INFO L375 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] [2018-11-07 22:02:26,477 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 22:02:26,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 22:02:26,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1765448667, now seen corresponding path program 1 times [2018-11-07 22:02:26,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 22:02:26,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:02:26,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 22:02:26,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:02:26,538 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 22:02:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 22:02:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 22:02:26,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 22:02:26,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-07 22:02:26,648 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 22:02:26,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-07 22:02:26,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-07 22:02:26,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 22:02:26,678 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 2 states. [2018-11-07 22:02:26,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 22:02:26,710 INFO L93 Difference]: Finished difference Result 117 states and 135 transitions. [2018-11-07 22:02:26,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-07 22:02:26,711 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-07 22:02:26,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 22:02:26,720 INFO L225 Difference]: With dead ends: 117 [2018-11-07 22:02:26,720 INFO L226 Difference]: Without dead ends: 48 [2018-11-07 22:02:26,726 INFO L604 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 [2018-11-07 22:02:26,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-07 22:02:26,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-11-07 22:02:26,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-07 22:02:26,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2018-11-07 22:02:26,770 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 25 [2018-11-07 22:02:26,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 22:02:26,770 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2018-11-07 22:02:26,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-07 22:02:26,771 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2018-11-07 22:02:26,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-07 22:02:26,772 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 22:02:26,772 INFO L375 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, 1, 1, 1] [2018-11-07 22:02:26,773 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 22:02:26,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 22:02:26,773 INFO L82 PathProgramCache]: Analyzing trace with hash 914308196, now seen corresponding path program 1 times [2018-11-07 22:02:26,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 22:02:26,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:02:26,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 22:02:26,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:02:26,775 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 22:02:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 22:02:26,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 22:02:26,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 22:02:26,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 22:02:26,971 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 22:02:26,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 22:02:26,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 22:02:26,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-07 22:02:26,974 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand 4 states. [2018-11-07 22:02:27,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 22:02:27,523 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2018-11-07 22:02:27,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 22:02:27,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-11-07 22:02:27,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 22:02:27,527 INFO L225 Difference]: With dead ends: 116 [2018-11-07 22:02:27,527 INFO L226 Difference]: Without dead ends: 77 [2018-11-07 22:02:27,529 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-07 22:02:27,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-11-07 22:02:27,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 54. [2018-11-07 22:02:27,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-07 22:02:27,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2018-11-07 22:02:27,543 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 28 [2018-11-07 22:02:27,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 22:02:27,544 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2018-11-07 22:02:27,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 22:02:27,544 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2018-11-07 22:02:27,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-07 22:02:27,546 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 22:02:27,546 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 22:02:27,546 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 22:02:27,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 22:02:27,547 INFO L82 PathProgramCache]: Analyzing trace with hash 2001926743, now seen corresponding path program 1 times [2018-11-07 22:02:27,547 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 22:02:27,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:02:27,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 22:02:27,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:02:27,549 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 22:02:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 22:02:28,520 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2018-11-07 22:02:29,177 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2018-11-07 22:02:29,643 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 25 [2018-11-07 22:02:29,783 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 32 [2018-11-07 22:02:29,970 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 38 [2018-11-07 22:02:30,152 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 40 [2018-11-07 22:02:30,403 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 26 [2018-11-07 22:02:30,923 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 22:02:30,923 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 22:02:30,923 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 22:02:30,924 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 50 with the following transitions: [2018-11-07 22:02:30,926 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [6], [7], [8], [9], [13], [16], [18], [19], [20], [21], [31], [33], [37], [41], [44], [46], [47], [48], [49], [59], [61], [65], [69], [72], [74], [75], [76], [77], [78], [80], [84], [88], [93], [94], [95], [96], [111], [114], [116], [122], [123], [124], [126] [2018-11-07 22:02:30,965 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 22:02:30,965 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 22:02:31,106 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 22:02:31,550 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 22:02:31,554 INFO L272 AbstractInterpreter]: Visited 46 different actions 262 times. Merged at 24 different actions 192 times. Widened at 3 different actions 12 times. Found 27 fixpoints after 6 different actions. Largest state had 31 variables. [2018-11-07 22:02:31,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 22:02:31,611 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 22:02:31,611 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 22:02:31,611 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 22:02:31,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 22:02:31,626 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 22:02:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 22:02:31,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 22:02:31,734 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 [2018-11-07 22:02:31,737 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-07 22:02:31,749 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:02:31,749 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-07 22:02:31,831 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:02:31,833 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:02:31,834 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 [2018-11-07 22:02:31,835 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-07 22:02:31,845 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:02:31,846 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2018-11-07 22:02:31,924 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:02:31,927 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:02:31,929 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:02:31,931 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 [2018-11-07 22:02:31,932 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-07 22:02:31,944 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:02:31,944 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:13 [2018-11-07 22:02:32,254 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 21 treesize of output 31 [2018-11-07 22:02:32,257 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 [2018-11-07 22:02:32,258 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-07 22:02:32,267 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:02:32,278 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:02:32,279 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2018-11-07 22:02:32,717 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 39 treesize of output 39 [2018-11-07 22:02:32,723 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 17 treesize of output 10 [2018-11-07 22:02:32,723 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-07 22:02:32,743 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 16 treesize of output 7 [2018-11-07 22:02:32,743 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-07 22:02:32,754 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 6 [2018-11-07 22:02:32,754 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-07 22:02:32,756 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:02:32,765 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:02:32,765 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:51, output treesize:6 [2018-11-07 22:02:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 22:02:32,892 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 22:02:59,632 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-11-07 22:02:59,700 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 126 treesize of output 120 [2018-11-07 22:03:00,050 WARN L179 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2018-11-07 22:03:00,076 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:00,087 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:00,163 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 57 treesize of output 149 [2018-11-07 22:03:00,164 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-07 22:03:00,375 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 256 xjuncts. [2018-11-07 22:03:02,958 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:02,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 188 treesize of output 178 [2018-11-07 22:03:03,694 WARN L179 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 130 [2018-11-07 22:03:03,704 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:03,714 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:03,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 80 treesize of output 152 [2018-11-07 22:03:03,819 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-07 22:03:03,999 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 256 xjuncts. [2018-11-07 22:03:06,512 INFO L267 ElimStorePlain]: Start of recursive call 4: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:06,559 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 182 treesize of output 164 [2018-11-07 22:03:06,851 WARN L179 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2018-11-07 22:03:06,869 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:06,871 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 77 treesize of output 66 [2018-11-07 22:03:06,872 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:07,089 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 74 treesize of output 68 [2018-11-07 22:03:07,090 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:07,116 INFO L267 ElimStorePlain]: Start of recursive call 6: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:07,233 INFO L303 Elim1Store]: Index analysis took 115 ms [2018-11-07 22:03:07,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 85 [2018-11-07 22:03:07,581 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-11-07 22:03:07,610 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 57 [2018-11-07 22:03:07,612 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-07 22:03:07,722 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 54 [2018-11-07 22:03:07,724 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-11-07 22:03:07,965 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:08,008 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 127 [2018-11-07 22:03:08,018 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 32 xjuncts. [2018-11-07 22:03:08,895 INFO L267 ElimStorePlain]: Start of recursive call 9: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:09,041 INFO L303 Elim1Store]: Index analysis took 145 ms [2018-11-07 22:03:09,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 187 treesize of output 179 [2018-11-07 22:03:11,787 WARN L179 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 228 DAG size of output: 147 [2018-11-07 22:03:11,792 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 81 [2018-11-07 22:03:11,794 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:11,956 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:12,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 91 [2018-11-07 22:03:12,054 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 4 xjuncts. [2018-11-07 22:03:12,291 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:12,299 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:12,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 81 treesize of output 155 [2018-11-07 22:03:12,396 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-07 22:03:12,504 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 256 xjuncts. [2018-11-07 22:03:14,617 INFO L267 ElimStorePlain]: Start of recursive call 13: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:14,784 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 243 treesize of output 223 [2018-11-07 22:03:15,664 WARN L179 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 161 [2018-11-07 22:03:15,667 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:15,671 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 107 treesize of output 88 [2018-11-07 22:03:15,673 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-07 22:03:15,891 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 56 treesize of output 52 [2018-11-07 22:03:15,892 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:16,075 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:16,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 104 treesize of output 99 [2018-11-07 22:03:16,097 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 4 xjuncts. [2018-11-07 22:03:16,397 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:16,405 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:16,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 101 treesize of output 155 [2018-11-07 22:03:16,484 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-07 22:03:16,591 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 256 xjuncts. [2018-11-07 22:03:19,230 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:19,233 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2018-11-07 22:03:19,234 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:19,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 25 [2018-11-07 22:03:19,237 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:19,446 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:19,453 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:19,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 98 treesize of output 152 [2018-11-07 22:03:19,530 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-07 22:03:19,652 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 256 xjuncts. [2018-11-07 22:03:21,652 INFO L267 ElimStorePlain]: Start of recursive call 17: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:21,680 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 117 treesize of output 111 [2018-11-07 22:03:21,974 WARN L179 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2018-11-07 22:03:21,978 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:21,999 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 68 [2018-11-07 22:03:22,001 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 4 xjuncts. [2018-11-07 22:03:22,121 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 54 treesize of output 50 [2018-11-07 22:03:22,122 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:22,219 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:22,222 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-11-07 22:03:22,223 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:22,225 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-11-07 22:03:22,226 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:22,312 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:22,319 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:22,355 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 100 [2018-11-07 22:03:22,363 INFO L267 ElimStorePlain]: Start of recursive call 30: 11 dim-0 vars, End of recursive call: 11 dim-0 vars, and 16 xjuncts. [2018-11-07 22:03:22,553 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 27 treesize of output 23 [2018-11-07 22:03:22,554 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:22,555 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 29 treesize of output 25 [2018-11-07 22:03:22,556 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:22,557 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 27 treesize of output 23 [2018-11-07 22:03:22,558 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:22,561 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 27 treesize of output 23 [2018-11-07 22:03:22,562 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:22,585 INFO L267 ElimStorePlain]: Start of recursive call 25: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:22,592 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 74 [2018-11-07 22:03:22,675 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 1 case distinctions, treesize of input 26 treesize of output 31 [2018-11-07 22:03:22,677 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-07 22:03:22,714 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 1 case distinctions, treesize of input 17 treesize of output 28 [2018-11-07 22:03:22,715 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 2 xjuncts. [2018-11-07 22:03:22,736 INFO L267 ElimStorePlain]: Start of recursive call 35: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-07 22:03:22,763 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 61 treesize of output 67 [2018-11-07 22:03:23,000 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2018-11-07 22:03:23,015 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 38 [2018-11-07 22:03:23,016 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-07 22:03:23,119 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2018-11-07 22:03:23,120 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:23,206 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 49 [2018-11-07 22:03:23,209 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 8 xjuncts. [2018-11-07 22:03:23,275 INFO L267 ElimStorePlain]: Start of recursive call 38: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:23,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 144 treesize of output 130 [2018-11-07 22:03:23,482 WARN L179 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2018-11-07 22:03:23,488 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:23,489 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 0 case distinctions, treesize of input 78 treesize of output 67 [2018-11-07 22:03:23,490 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:23,497 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:23,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2018-11-07 22:03:23,499 INFO L267 ElimStorePlain]: Start of recursive call 44: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-07 22:03:23,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 84 [2018-11-07 22:03:23,552 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 2 xjuncts. [2018-11-07 22:03:23,634 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 1 case distinctions, treesize of input 33 treesize of output 37 [2018-11-07 22:03:23,635 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 2 xjuncts. [2018-11-07 22:03:23,687 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:23,691 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:23,731 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 123 [2018-11-07 22:03:23,736 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 16 xjuncts. [2018-11-07 22:03:23,740 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:23,743 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:23,760 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 75 [2018-11-07 22:03:23,762 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 2 xjuncts. [2018-11-07 22:03:23,833 INFO L267 ElimStorePlain]: Start of recursive call 42: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-07 22:03:23,956 INFO L303 Elim1Store]: Index analysis took 122 ms [2018-11-07 22:03:23,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 125 [2018-11-07 22:03:24,391 WARN L179 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 114 [2018-11-07 22:03:24,395 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:24,397 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 63 treesize of output 60 [2018-11-07 22:03:24,398 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:24,700 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:24,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 75 [2018-11-07 22:03:24,719 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 4 xjuncts. [2018-11-07 22:03:24,912 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:24,921 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:24,994 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 57 treesize of output 149 [2018-11-07 22:03:24,995 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-07 22:03:25,069 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 256 xjuncts. [2018-11-07 22:03:28,010 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:28,022 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:28,122 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 146 [2018-11-07 22:03:28,122 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-07 22:03:28,187 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 256 xjuncts. [2018-11-07 22:03:30,214 INFO L267 ElimStorePlain]: Start of recursive call 49: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:30,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 85 [2018-11-07 22:03:30,341 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-11-07 22:03:30,347 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:30,391 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 127 [2018-11-07 22:03:30,398 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 32 xjuncts. [2018-11-07 22:03:30,518 INFO L267 ElimStorePlain]: Start of recursive call 54: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:30,545 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 81 [2018-11-07 22:03:30,876 WARN L179 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 81 [2018-11-07 22:03:30,879 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 46 treesize of output 44 [2018-11-07 22:03:30,880 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:31,011 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 43 treesize of output 41 [2018-11-07 22:03:31,012 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:31,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 55 [2018-11-07 22:03:31,155 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 8 xjuncts. [2018-11-07 22:03:31,267 INFO L267 ElimStorePlain]: Start of recursive call 56: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:31,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 192 treesize of output 168 [2018-11-07 22:03:31,409 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2018-11-07 22:03:31,412 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:31,413 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:31,413 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:31,418 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 86 [2018-11-07 22:03:31,419 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:31,456 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:31,456 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:31,459 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:31,465 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:31,533 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 174 [2018-11-07 22:03:31,534 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-07 22:03:31,551 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 64 xjuncts. [2018-11-07 22:03:31,803 INFO L267 ElimStorePlain]: Start of recursive call 60: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:31,822 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 117 treesize of output 111 [2018-11-07 22:03:32,021 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2018-11-07 22:03:32,024 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:32,026 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 0 case distinctions, treesize of input 51 treesize of output 48 [2018-11-07 22:03:32,027 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:32,075 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:32,083 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:32,121 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 100 [2018-11-07 22:03:32,128 INFO L267 ElimStorePlain]: Start of recursive call 65: 11 dim-0 vars, End of recursive call: 11 dim-0 vars, and 16 xjuncts. [2018-11-07 22:03:32,284 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:32,293 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:32,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 48 treesize of output 140 [2018-11-07 22:03:32,370 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-07 22:03:32,426 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 256 xjuncts. [2018-11-07 22:03:34,397 INFO L267 ElimStorePlain]: Start of recursive call 63: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:34,404 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 74 [2018-11-07 22:03:34,446 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 1 case distinctions, treesize of input 26 treesize of output 37 [2018-11-07 22:03:34,447 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 2 xjuncts. [2018-11-07 22:03:34,472 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 1 case distinctions, treesize of input 15 treesize of output 20 [2018-11-07 22:03:34,473 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:34,479 INFO L267 ElimStorePlain]: Start of recursive call 67: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:34,495 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 209 treesize of output 183 [2018-11-07 22:03:34,733 WARN L179 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2018-11-07 22:03:34,737 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:34,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 87 [2018-11-07 22:03:34,742 INFO L267 ElimStorePlain]: Start of recursive call 71: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-07 22:03:34,758 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 90 [2018-11-07 22:03:34,760 INFO L267 ElimStorePlain]: Start of recursive call 72: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-07 22:03:34,763 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:34,763 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 83 treesize of output 76 [2018-11-07 22:03:34,764 INFO L267 ElimStorePlain]: Start of recursive call 73: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-07 22:03:34,915 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:34,918 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:34,925 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:34,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 84 [2018-11-07 22:03:34,943 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 2 xjuncts. [2018-11-07 22:03:34,947 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:34,949 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:34,952 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:34,956 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:35,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 175 [2018-11-07 22:03:35,016 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-07 22:03:35,049 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 64 xjuncts. [2018-11-07 22:03:35,332 INFO L267 ElimStorePlain]: Start of recursive call 70: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:35,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 83 [2018-11-07 22:03:35,395 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:35,430 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 42 [2018-11-07 22:03:35,431 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 2 xjuncts. [2018-11-07 22:03:35,445 INFO L267 ElimStorePlain]: Start of recursive call 76: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:35,460 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 144 treesize of output 130 [2018-11-07 22:03:35,643 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2018-11-07 22:03:35,647 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:35,650 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 69 [2018-11-07 22:03:35,651 INFO L267 ElimStorePlain]: Start of recursive call 79: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-07 22:03:35,654 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:35,655 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 73 treesize of output 66 [2018-11-07 22:03:35,656 INFO L267 ElimStorePlain]: Start of recursive call 80: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-07 22:03:35,668 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 80 [2018-11-07 22:03:35,670 INFO L267 ElimStorePlain]: Start of recursive call 81: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-07 22:03:35,796 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:35,800 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:35,816 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 75 [2018-11-07 22:03:35,818 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 2 xjuncts. [2018-11-07 22:03:35,822 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:35,825 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:35,867 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 123 [2018-11-07 22:03:35,872 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 16 xjuncts. [2018-11-07 22:03:35,953 INFO L267 ElimStorePlain]: Start of recursive call 78: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:35,974 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 181 treesize of output 165 [2018-11-07 22:03:36,223 WARN L179 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 84 [2018-11-07 22:03:36,227 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 78 treesize of output 72 [2018-11-07 22:03:36,227 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:36,365 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:36,385 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 82 [2018-11-07 22:03:36,387 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 4 xjuncts. [2018-11-07 22:03:36,460 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:36,463 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2018-11-07 22:03:36,463 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:36,466 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2018-11-07 22:03:36,466 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:36,506 INFO L267 ElimStorePlain]: Start of recursive call 84: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:36,529 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 61 treesize of output 67 [2018-11-07 22:03:36,685 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2018-11-07 22:03:36,687 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 37 treesize of output 35 [2018-11-07 22:03:36,688 INFO L267 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:36,757 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 34 treesize of output 38 [2018-11-07 22:03:36,758 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 2 xjuncts. [2018-11-07 22:03:36,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 49 [2018-11-07 22:03:36,857 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 8 xjuncts. [2018-11-07 22:03:36,935 INFO L267 ElimStorePlain]: Start of recursive call 89: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:36,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 125 [2018-11-07 22:03:37,404 WARN L179 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 114 [2018-11-07 22:03:37,418 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:37,442 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 77 [2018-11-07 22:03:37,443 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 4 xjuncts. [2018-11-07 22:03:37,673 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 37 [2018-11-07 22:03:37,674 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:37,676 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:37,678 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 0 case distinctions, treesize of input 43 treesize of output 42 [2018-11-07 22:03:37,678 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:37,929 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 57 treesize of output 53 [2018-11-07 22:03:37,930 INFO L267 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:38,115 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:38,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 72 [2018-11-07 22:03:38,139 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 4 xjuncts. [2018-11-07 22:03:38,452 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2018-11-07 22:03:38,452 INFO L267 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:38,560 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:38,567 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:38,641 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 146 [2018-11-07 22:03:38,641 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-07 22:03:38,703 INFO L267 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 256 xjuncts. [2018-11-07 22:03:40,793 INFO L267 ElimStorePlain]: Start of recursive call 93: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:40,808 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 1 case distinctions, treesize of input 55 treesize of output 53 [2018-11-07 22:03:40,887 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 1 case distinctions, treesize of input 25 treesize of output 29 [2018-11-07 22:03:40,889 INFO L267 ElimStorePlain]: Start of recursive call 102: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-07 22:03:40,926 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2018-11-07 22:03:40,927 INFO L267 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:41,028 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2018-11-07 22:03:41,029 INFO L267 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:41,043 INFO L267 ElimStorePlain]: Start of recursive call 101: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:41,136 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 3 xjuncts. [2018-11-07 22:03:41,136 INFO L202 ElimStorePlain]: Needed 104 recursive calls to eliminate 4 variables, input treesize:120, output treesize:18 [2018-11-07 22:03:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 22:03:45,448 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 22:03:45,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 42 [2018-11-07 22:03:45,449 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 22:03:45,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-11-07 22:03:45,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-11-07 22:03:45,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1534, Unknown=14, NotChecked=0, Total=1722 [2018-11-07 22:03:45,453 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 32 states. [2018-11-07 22:03:48,554 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2018-11-07 22:03:49,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 22:03:49,193 INFO L93 Difference]: Finished difference Result 203 states and 220 transitions. [2018-11-07 22:03:49,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-07 22:03:49,194 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 49 [2018-11-07 22:03:49,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 22:03:49,198 INFO L225 Difference]: With dead ends: 203 [2018-11-07 22:03:49,199 INFO L226 Difference]: Without dead ends: 140 [2018-11-07 22:03:49,201 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 75 SyntacticMatches, 7 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 36.5s TimeCoverageRelationStatistics Valid=776, Invalid=3500, Unknown=14, NotChecked=0, Total=4290 [2018-11-07 22:03:49,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-11-07 22:03:49,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 93. [2018-11-07 22:03:49,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-11-07 22:03:49,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions. [2018-11-07 22:03:49,216 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 49 [2018-11-07 22:03:49,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 22:03:49,217 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 97 transitions. [2018-11-07 22:03:49,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-11-07 22:03:49,217 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions. [2018-11-07 22:03:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-11-07 22:03:49,219 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 22:03:49,219 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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] [2018-11-07 22:03:49,220 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 22:03:49,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 22:03:49,220 INFO L82 PathProgramCache]: Analyzing trace with hash -932694723, now seen corresponding path program 2 times [2018-11-07 22:03:49,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 22:03:49,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:03:49,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 22:03:49,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 22:03:49,222 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 22:03:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 22:03:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-07 22:03:49,714 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 22:03:49,714 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 22:03:49,714 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-07 22:03:49,715 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 22:03:49,715 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 22:03:49,715 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 22:03:49,724 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-07 22:03:49,724 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-07 22:03:49,848 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-07 22:03:49,848 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-07 22:03:49,856 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 22:03:49,859 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 6 treesize of output 5 [2018-11-07 22:03:49,859 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:49,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:49,870 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-07 22:03:49,899 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:49,900 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:49,901 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 [2018-11-07 22:03:49,901 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:49,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:49,912 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-11-07 22:03:49,935 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:49,936 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:49,936 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:49,937 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 [2018-11-07 22:03:49,937 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:49,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:49,949 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:22 [2018-11-07 22:03:50,484 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 39 treesize of output 49 [2018-11-07 22:03:50,488 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 35 [2018-11-07 22:03:50,488 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:50,496 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:50,520 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:50,520 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:71, output treesize:67 [2018-11-07 22:03:50,736 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 61 treesize of output 68 [2018-11-07 22:03:50,789 INFO L700 Elim1Store]: detected not equals via solver [2018-11-07 22:03:50,792 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 56 treesize of output 75 [2018-11-07 22:03:50,792 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:50,811 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:50,848 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:50,849 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:99, output treesize:80 [2018-11-07 22:03:51,569 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 57 treesize of output 57 [2018-11-07 22:03:51,575 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:51,576 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 35 treesize of output 32 [2018-11-07 22:03:51,576 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:51,606 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:51,609 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 28 treesize of output 23 [2018-11-07 22:03:51,609 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:51,645 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:51,646 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 19 treesize of output 16 [2018-11-07 22:03:51,647 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-07 22:03:51,654 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:51,682 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-07 22:03:51,683 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:100, output treesize:6 [2018-11-07 22:03:51,865 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-07 22:03:51,866 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 22:03:56,111 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 320 treesize of output 286 [2018-11-07 22:03:56,120 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:56,123 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 238 [2018-11-07 22:03:56,124 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-07 22:03:56,205 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:56,245 INFO L682 Elim1Store]: detected equality via solver [2018-11-07 22:03:56,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 278 treesize of output 290 [2018-11-07 22:03:56,398 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 Received shutdown request... [2018-11-07 22:06:56,225 WARN L187 SmtUtils]: Removed 242 from assertion stack [2018-11-07 22:06:56,225 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 22:06:56,426 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 22:06:56,426 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 22:06:56,432 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 22:06:56,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:06:56 BoogieIcfgContainer [2018-11-07 22:06:56,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 22:06:56,433 INFO L168 Benchmark]: Toolchain (without parser) took 271247.37 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -778.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 22:06:56,433 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 22:06:56,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-07 22:06:56,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.77 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 22:06:56,434 INFO L168 Benchmark]: Boogie Preprocessor took 37.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 22:06:56,434 INFO L168 Benchmark]: RCFGBuilder took 779.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 774.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2018-11-07 22:06:56,435 INFO L168 Benchmark]: TraceAbstraction took 270068.18 ms. Allocated memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: 343.4 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 12.1 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 22:06:56,436 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 327.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 29.77 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 779.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 774.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 270068.18 ms. Allocated memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: 343.4 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 12.1 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 6]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 6). Cancelled while BasicCegarLoop was analyzing trace of length 78 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while SimplifyDDAWithTimeout was simplifying term of DAG size 12386. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. TIMEOUT Result, 270.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 4.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 149 SDtfs, 955 SDslu, 550 SDs, 0 SdLazy, 962 SolverSat, 237 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 79 SyntacticMatches, 7 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 36.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 70 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 77.1s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 195 ConstructedInterpolants, 5 QuantifiedInterpolants, 128007 SizeOfPredicates, 20 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 8/18 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown