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 0.1.23-63daa26 [2018-11-12 20:30:17,061 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 20:30:17,063 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 20:30:17,081 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 20:30:17,082 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 20:30:17,083 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 20:30:17,084 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 20:30:17,086 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 20:30:17,087 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 20:30:17,088 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 20:30:17,089 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 20:30:17,089 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 20:30:17,090 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 20:30:17,091 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 20:30:17,092 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 20:30:17,093 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 20:30:17,094 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 20:30:17,097 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 20:30:17,104 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 20:30:17,110 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 20:30:17,111 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 20:30:17,113 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 20:30:17,118 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 20:30:17,118 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 20:30:17,119 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 20:30:17,119 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 20:30:17,121 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 20:30:17,122 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 20:30:17,125 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 20:30:17,126 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 20:30:17,128 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 20:30:17,129 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 20:30:17,129 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 20:30:17,130 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 20:30:17,131 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 20:30:17,131 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 20:30:17,132 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 [2018-11-12 20:30:17,161 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 20:30:17,161 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 20:30:17,162 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 20:30:17,163 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 20:30:17,163 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 20:30:17,163 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 20:30:17,163 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 20:30:17,163 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 20:30:17,164 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 20:30:17,164 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 20:30:17,165 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 20:30:17,165 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 20:30:17,165 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 20:30:17,166 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 20:30:17,166 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 20:30:17,166 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 20:30:17,166 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 20:30:17,168 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 20:30:17,169 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 20:30:17,169 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 20:30:17,169 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 20:30:17,169 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 20:30:17,169 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 20:30:17,170 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 20:30:17,170 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 20:30:17,170 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 20:30:17,171 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 20:30:17,171 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 20:30:17,171 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 20:30:17,171 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 20:30:17,171 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 20:30:17,171 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 20:30:17,172 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 20:30:17,172 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 20:30:17,172 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 20:30:17,235 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 20:30:17,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 20:30:17,256 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 20:30:17,258 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 20:30:17,258 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 20:30:17,259 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-11-12 20:30:17,317 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b3d95c11/a67d7d6e90534f0f88b64e5c4f4d0653/FLAG1a7a7ceb0 [2018-11-12 20:30:17,835 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 20:30:17,835 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-11-12 20:30:17,845 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b3d95c11/a67d7d6e90534f0f88b64e5c4f4d0653/FLAG1a7a7ceb0 [2018-11-12 20:30:17,860 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b3d95c11/a67d7d6e90534f0f88b64e5c4f4d0653 [2018-11-12 20:30:17,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 20:30:17,875 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 20:30:17,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 20:30:17,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 20:30:17,880 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 20:30:17,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:30:17" (1/1) ... [2018-11-12 20:30:17,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602d4844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:17, skipping insertion in model container [2018-11-12 20:30:17,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:30:17" (1/1) ... [2018-11-12 20:30:17,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 20:30:17,923 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 20:30:18,151 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 20:30:18,156 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 20:30:18,189 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 20:30:18,216 INFO L193 MainTranslator]: Completed translation [2018-11-12 20:30:18,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18 WrapperNode [2018-11-12 20:30:18,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 20:30:18,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 20:30:18,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 20:30:18,219 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 20:30:18,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18" (1/1) ... [2018-11-12 20:30:18,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18" (1/1) ... [2018-11-12 20:30:18,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 20:30:18,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 20:30:18,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 20:30:18,266 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 20:30:18,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18" (1/1) ... [2018-11-12 20:30:18,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18" (1/1) ... [2018-11-12 20:30:18,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18" (1/1) ... [2018-11-12 20:30:18,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18" (1/1) ... [2018-11-12 20:30:18,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18" (1/1) ... [2018-11-12 20:30:18,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18" (1/1) ... [2018-11-12 20:30:18,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18" (1/1) ... [2018-11-12 20:30:18,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 20:30:18,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 20:30:18,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 20:30:18,330 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 20:30:18,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18" (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 [2018-11-12 20:30:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 20:30:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 20:30:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-12 20:30:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 20:30:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 20:30:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-12 20:30:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 20:30:18,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 20:30:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-12 20:30:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-12 20:30:18,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-12 20:30:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-12 20:30:18,967 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 20:30:18,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:30:18 BoogieIcfgContainer [2018-11-12 20:30:18,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 20:30:18,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 20:30:18,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 20:30:18,973 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 20:30:18,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:30:17" (1/3) ... [2018-11-12 20:30:18,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9a53c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:30:18, skipping insertion in model container [2018-11-12 20:30:18,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:18" (2/3) ... [2018-11-12 20:30:18,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9a53c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:30:18, skipping insertion in model container [2018-11-12 20:30:18,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:30:18" (3/3) ... [2018-11-12 20:30:18,976 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array_true-unreach-call.i [2018-11-12 20:30:18,986 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 20:30:18,995 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 20:30:19,012 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 20:30:19,046 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 20:30:19,047 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 20:30:19,047 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 20:30:19,047 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 20:30:19,047 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 20:30:19,048 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 20:30:19,048 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 20:30:19,048 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 20:30:19,071 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-12 20:30:19,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-12 20:30:19,080 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:30:19,081 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 20:30:19,084 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:30:19,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:30:19,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1480294570, now seen corresponding path program 1 times [2018-11-12 20:30:19,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:30:19,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:19,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:30:19,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:19,146 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:30:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:30:19,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 20:30:19,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 20:30:19,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-12 20:30:19,275 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 20:30:19,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-12 20:30:19,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-12 20:30:19,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-12 20:30:19,296 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-12 20:30:19,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 20:30:19,327 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2018-11-12 20:30:19,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-12 20:30:19,329 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-12 20:30:19,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 20:30:19,338 INFO L225 Difference]: With dead ends: 62 [2018-11-12 20:30:19,339 INFO L226 Difference]: Without dead ends: 31 [2018-11-12 20:30:19,342 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 [2018-11-12 20:30:19,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-12 20:30:19,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-12 20:30:19,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-12 20:30:19,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-11-12 20:30:19,386 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 18 [2018-11-12 20:30:19,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 20:30:19,386 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-11-12 20:30:19,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-12 20:30:19,387 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-11-12 20:30:19,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-12 20:30:19,388 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:30:19,390 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] [2018-11-12 20:30:19,390 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:30:19,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:30:19,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1304153360, now seen corresponding path program 1 times [2018-11-12 20:30:19,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:30:19,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:19,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:30:19,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:19,393 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:30:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:30:19,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 20:30:19,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 20:30:19,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 20:30:19,589 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 20:30:19,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 20:30:19,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 20:30:19,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-12 20:30:19,592 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 4 states. [2018-11-12 20:30:19,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 20:30:19,895 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2018-11-12 20:30:19,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 20:30:19,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-11-12 20:30:19,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 20:30:19,900 INFO L225 Difference]: With dead ends: 76 [2018-11-12 20:30:19,900 INFO L226 Difference]: Without dead ends: 47 [2018-11-12 20:30:19,902 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-12 20:30:19,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-12 20:30:19,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 37. [2018-11-12 20:30:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-12 20:30:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-11-12 20:30:19,915 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 21 [2018-11-12 20:30:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 20:30:19,915 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-11-12 20:30:19,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 20:30:19,916 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-11-12 20:30:19,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-12 20:30:19,917 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:30:19,917 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] [2018-11-12 20:30:19,917 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:30:19,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:30:19,918 INFO L82 PathProgramCache]: Analyzing trace with hash -2126407395, now seen corresponding path program 1 times [2018-11-12 20:30:19,918 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:30:19,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:19,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:30:19,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:19,920 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:30:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:30:20,552 WARN L179 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-11-12 20:30:20,731 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2018-11-12 20:30:20,918 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2018-11-12 20:30:21,298 WARN L179 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 39 [2018-11-12 20:30:21,472 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 25 [2018-11-12 20:30:21,867 WARN L179 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 27 [2018-11-12 20:30:21,926 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-12 20:30:21,927 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 20:30:21,927 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 20:30:21,928 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 33 with the following transitions: [2018-11-12 20:30:21,930 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [18], [20], [24], [28], [31], [33], [37], [39], [43], [47], [50], [52], [54], [58], [62], [67], [77], [80], [82], [88], [89], [90], [92] [2018-11-12 20:30:21,970 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 20:30:21,970 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 20:30:22,113 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 20:30:22,605 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 20:30:22,607 INFO L272 AbstractInterpreter]: Visited 29 different actions 165 times. Merged at 14 different actions 112 times. Widened at 3 different actions 12 times. Performed 760 root evaluator evaluations with a maximum evaluation depth of 5. Performed 760 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 27 fixpoints after 6 different actions. Largest state had 31 variables. [2018-11-12 20:30:22,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:30:22,648 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 20:30:22,648 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 20:30:22,649 INFO L192 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 [2018-11-12 20:30:22,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:30:22,660 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 20:30:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:30:22,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 20:30:22,755 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-12 20:30:22,780 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:30:22,782 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:30:22,783 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-12 20:30:22,783 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:22,801 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:22,807 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:22,808 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:9 [2018-11-12 20:30:22,929 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 27 [2018-11-12 20:30:22,933 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 [2018-11-12 20:30:22,933 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:22,966 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:22,974 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:22,975 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:30, output treesize:26 [2018-11-12 20:30:23,399 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 39 treesize of output 43 [2018-11-12 20:30:23,409 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 39 treesize of output 33 [2018-11-12 20:30:23,410 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:23,494 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 25 treesize of output 17 [2018-11-12 20:30:23,495 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:23,520 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 27 treesize of output 20 [2018-11-12 20:30:23,521 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:23,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2018-11-12 20:30:23,562 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-12 20:30:23,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 11 [2018-11-12 20:30:23,604 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:23,642 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-12 20:30:23,672 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-12 20:30:23,673 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:47, output treesize:21 [2018-11-12 20:30:23,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-12 20:30:23,741 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 20:30:23,971 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-11-12 20:30:24,030 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 [2018-11-12 20:30:24,269 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2018-11-12 20:30:24,320 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:24,323 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:24,418 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 [2018-11-12 20:30:24,419 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:30:24,681 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 256 xjuncts. [2018-11-12 20:30:27,403 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:27,433 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 [2018-11-12 20:30:28,327 WARN L179 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 130 [2018-11-12 20:30:28,337 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:28,344 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:28,411 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 83 treesize of output 155 [2018-11-12 20:30:28,412 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:30:28,544 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 256 xjuncts. [2018-11-12 20:30:31,227 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:31,239 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:31,328 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 83 treesize of output 155 [2018-11-12 20:30:31,328 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:30:31,476 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 256 xjuncts. [2018-11-12 20:30:33,941 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:33,945 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:34,079 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 [2018-11-12 20:30:34,080 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:30:34,192 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 256 xjuncts. [2018-11-12 20:30:36,075 INFO L267 ElimStorePlain]: Start of recursive call 4: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:36,101 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 [2018-11-12 20:30:36,484 WARN L179 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2018-11-12 20:30:36,494 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:36,517 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 77 treesize of output 82 [2018-11-12 20:30:36,520 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 4 xjuncts. [2018-11-12 20:30:36,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 74 [2018-11-12 20:30:36,674 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:36,977 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:36,981 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:37,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 77 treesize of output 111 [2018-11-12 20:30:37,029 INFO L267 ElimStorePlain]: Start of recursive call 11: 14 dim-0 vars, End of recursive call: 14 dim-0 vars, and 16 xjuncts. [2018-11-12 20:30:37,470 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:37,530 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:37,630 INFO L303 Elim1Store]: Index analysis took 273 ms [2018-11-12 20:30:37,684 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 8 case distinctions, treesize of input 74 treesize of output 146 [2018-11-12 20:30:37,685 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:30:37,792 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 256 xjuncts. [2018-11-12 20:30:40,333 INFO L267 ElimStorePlain]: Start of recursive call 8: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:40,352 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 [2018-11-12 20:30:40,472 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-11-12 20:30:40,496 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:40,538 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 [2018-11-12 20:30:40,547 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 32 xjuncts. [2018-11-12 20:30:41,592 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:41,746 INFO L303 Elim1Store]: Index analysis took 152 ms [2018-11-12 20:30:41,982 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 [2018-11-12 20:30:43,862 WARN L179 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 228 DAG size of output: 147 [2018-11-12 20:30:43,867 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:43,884 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 87 treesize of output 92 [2018-11-12 20:30:43,886 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 4 xjuncts. [2018-11-12 20:30:44,109 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:44,188 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 87 treesize of output 94 [2018-11-12 20:30:44,190 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-11-12 20:30:44,440 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:44,448 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:44,541 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 [2018-11-12 20:30:44,542 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:30:44,645 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 256 xjuncts. [2018-11-12 20:30:48,070 INFO L267 ElimStorePlain]: Start of recursive call 15: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:48,100 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 [2018-11-12 20:30:48,888 WARN L179 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 161 [2018-11-12 20:30:48,891 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:48,895 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 [2018-11-12 20:30:48,896 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-12 20:30:49,144 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:49,147 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:49,219 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 [2018-11-12 20:30:49,219 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:30:49,323 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 256 xjuncts. [2018-11-12 20:30:51,617 INFO L267 ElimStorePlain]: Start of recursive call 19: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:51,647 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 [2018-11-12 20:30:51,891 WARN L179 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2018-11-12 20:30:51,898 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:51,906 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:51,977 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 [2018-11-12 20:30:51,977 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:30:52,056 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 256 xjuncts. [2018-11-12 20:30:54,275 INFO L267 ElimStorePlain]: Start of recursive call 22: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:54,281 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 [2018-11-12 20:30:54,324 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 [2018-11-12 20:30:54,325 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-11-12 20:30:54,352 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 [2018-11-12 20:30:54,353 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:54,367 INFO L267 ElimStorePlain]: Start of recursive call 24: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:54,486 INFO L303 Elim1Store]: Index analysis took 118 ms [2018-11-12 20:30:54,499 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 [2018-11-12 20:30:54,647 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2018-11-12 20:30:54,650 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 [2018-11-12 20:30:54,651 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:54,697 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 31 treesize of output 29 [2018-11-12 20:30:54,697 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:54,752 INFO L267 ElimStorePlain]: Start of recursive call 27: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:54,765 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 [2018-11-12 20:30:54,944 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2018-11-12 20:30:54,948 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:30:54,949 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 [2018-11-12 20:30:54,950 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-12 20:30:54,982 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:55,004 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 [2018-11-12 20:30:55,005 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:55,089 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 [2018-11-12 20:30:55,090 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 2 xjuncts. [2018-11-12 20:30:55,658 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:55,659 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:55,700 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 [2018-11-12 20:30:55,705 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 16 xjuncts. [2018-11-12 20:30:55,766 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:30:55,767 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:30:55,780 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 [2018-11-12 20:30:55,782 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2018-11-12 20:30:55,868 INFO L267 ElimStorePlain]: Start of recursive call 30: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:55,898 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 [2018-11-12 20:30:56,308 WARN L179 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 114 [2018-11-12 20:30:56,315 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:56,323 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:56,395 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 [2018-11-12 20:30:56,396 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:30:56,468 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 256 xjuncts. [2018-11-12 20:30:58,586 INFO L267 ElimStorePlain]: Start of recursive call 36: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:58,600 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 [2018-11-12 20:30:58,692 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 63 [2018-11-12 20:30:58,694 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 2 xjuncts. [2018-11-12 20:30:58,746 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 42 treesize of output 46 [2018-11-12 20:30:58,747 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 2 xjuncts. [2018-11-12 20:30:58,784 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:58,827 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 [2018-11-12 20:30:58,834 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 32 xjuncts. [2018-11-12 20:30:58,940 INFO L267 ElimStorePlain]: Start of recursive call 38: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:58,970 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 [2018-11-12 20:30:59,347 WARN L179 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 81 [2018-11-12 20:30:59,390 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 40 treesize of output 58 [2018-11-12 20:30:59,392 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 8 xjuncts. [2018-11-12 20:30:59,517 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 [2018-11-12 20:30:59,519 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 8 xjuncts. [2018-11-12 20:30:59,634 INFO L267 ElimStorePlain]: Start of recursive call 42: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:30:59,653 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 [2018-11-12 20:30:59,778 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2018-11-12 20:30:59,782 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:59,784 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 89 treesize of output 78 [2018-11-12 20:30:59,786 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-12 20:30:59,823 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:59,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2018-11-12 20:30:59,826 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-12 20:30:59,861 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:59,862 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:59,866 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:59,870 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:30:59,931 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 [2018-11-12 20:30:59,931 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-12 20:30:59,950 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 64 xjuncts. [2018-11-12 20:31:00,433 INFO L267 ElimStorePlain]: Start of recursive call 45: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:00,454 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 [2018-11-12 20:31:00,621 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2018-11-12 20:31:00,675 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:00,694 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 [2018-11-12 20:31:00,695 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 4 xjuncts. [2018-11-12 20:31:00,815 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:00,818 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 54 treesize of output 51 [2018-11-12 20:31:00,819 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:01,073 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:01,075 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 [2018-11-12 20:31:01,076 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:01,083 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 [2018-11-12 20:31:01,084 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:01,146 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:01,153 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:01,222 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 [2018-11-12 20:31:01,223 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:31:01,289 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 256 xjuncts. [2018-11-12 20:31:03,243 INFO L267 ElimStorePlain]: Start of recursive call 49: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:03,249 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 [2018-11-12 20:31:03,341 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 [2018-11-12 20:31:03,342 INFO L267 ElimStorePlain]: Start of recursive call 56: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-12 20:31:03,369 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 [2018-11-12 20:31:03,370 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 2 xjuncts. [2018-11-12 20:31:03,383 INFO L267 ElimStorePlain]: Start of recursive call 55: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-12 20:31:03,429 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 [2018-11-12 20:31:03,650 WARN L179 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2018-11-12 20:31:03,685 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 102 treesize of output 108 [2018-11-12 20:31:03,687 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 4 xjuncts. [2018-11-12 20:31:03,689 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:03,690 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:03,690 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:03,694 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 0 case distinctions, treesize of input 104 treesize of output 93 [2018-11-12 20:31:03,695 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:03,701 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:03,702 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:03,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 84 [2018-11-12 20:31:03,705 INFO L267 ElimStorePlain]: Start of recursive call 61: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-12 20:31:03,805 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:03,806 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:03,809 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:03,813 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:03,872 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 [2018-11-12 20:31:03,872 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-12 20:31:03,903 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 64 xjuncts. [2018-11-12 20:31:03,907 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:03,912 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:03,924 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:03,941 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 [2018-11-12 20:31:03,942 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 2 xjuncts. [2018-11-12 20:31:04,193 INFO L267 ElimStorePlain]: Start of recursive call 58: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:04,197 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 [2018-11-12 20:31:04,282 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:04,292 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 [2018-11-12 20:31:04,293 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 2 xjuncts. [2018-11-12 20:31:04,309 INFO L267 ElimStorePlain]: Start of recursive call 64: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:04,323 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 [2018-11-12 20:31:04,514 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2018-11-12 20:31:04,517 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:04,522 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 [2018-11-12 20:31:04,523 INFO L267 ElimStorePlain]: Start of recursive call 67: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-12 20:31:04,536 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 [2018-11-12 20:31:04,538 INFO L267 ElimStorePlain]: Start of recursive call 68: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-12 20:31:04,540 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:04,541 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 [2018-11-12 20:31:04,541 INFO L267 ElimStorePlain]: Start of recursive call 69: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-12 20:31:04,661 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:04,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2018-11-12 20:31:04,664 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:04,667 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:04,668 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2018-11-12 20:31:04,669 INFO L267 ElimStorePlain]: Start of recursive call 71: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-12 20:31:04,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 59 [2018-11-12 20:31:04,685 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 2 xjuncts. [2018-11-12 20:31:04,690 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:04,691 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 59 treesize of output 50 [2018-11-12 20:31:04,692 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:04,771 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:04,777 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:04,812 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 [2018-11-12 20:31:04,817 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 16 xjuncts. [2018-11-12 20:31:04,819 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:04,825 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:04,837 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 [2018-11-12 20:31:04,838 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 2 xjuncts. [2018-11-12 20:31:04,902 INFO L267 ElimStorePlain]: Start of recursive call 66: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:04,923 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 [2018-11-12 20:31:05,166 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 84 [2018-11-12 20:31:05,170 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 81 treesize of output 75 [2018-11-12 20:31:05,171 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:05,243 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:05,246 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 [2018-11-12 20:31:05,247 INFO L267 ElimStorePlain]: Start of recursive call 78: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-12 20:31:05,387 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:05,392 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:05,433 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 78 treesize of output 114 [2018-11-12 20:31:05,444 INFO L267 ElimStorePlain]: Start of recursive call 79: 25 dim-0 vars, End of recursive call: 25 dim-0 vars, and 16 xjuncts. [2018-11-12 20:31:06,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 39 [2018-11-12 20:31:06,019 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 2 xjuncts. [2018-11-12 20:31:06,458 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 64 treesize of output 58 [2018-11-12 20:31:06,458 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,461 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 37 [2018-11-12 20:31:06,461 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,462 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 49 treesize of output 43 [2018-11-12 20:31:06,463 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,466 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 45 treesize of output 43 [2018-11-12 20:31:06,467 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,469 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 37 [2018-11-12 20:31:06,469 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2018-11-12 20:31:06,472 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,480 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 35 [2018-11-12 20:31:06,481 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,483 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 36 treesize of output 34 [2018-11-12 20:31:06,483 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-11-12 20:31:06,485 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,488 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 37 [2018-11-12 20:31:06,488 INFO L267 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,492 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 72 treesize of output 66 [2018-11-12 20:31:06,492 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,495 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 34 treesize of output 28 [2018-11-12 20:31:06,495 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,498 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 64 treesize of output 58 [2018-11-12 20:31:06,499 INFO L267 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,501 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 32 treesize of output 30 [2018-11-12 20:31:06,502 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,505 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 54 treesize of output 48 [2018-11-12 20:31:06,505 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,507 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 37 treesize of output 31 [2018-11-12 20:31:06,508 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,562 INFO L267 ElimStorePlain]: Start of recursive call 76: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:06,591 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 [2018-11-12 20:31:07,043 WARN L179 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 114 [2018-11-12 20:31:07,049 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:07,067 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:07,153 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 [2018-11-12 20:31:07,153 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:31:07,215 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 256 xjuncts. [2018-11-12 20:31:09,554 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:09,557 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:09,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 109 [2018-11-12 20:31:09,603 INFO L267 ElimStorePlain]: Start of recursive call 99: 11 dim-0 vars, End of recursive call: 11 dim-0 vars, and 16 xjuncts. [2018-11-12 20:31:09,828 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:09,835 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:09,901 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 [2018-11-12 20:31:09,901 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:31:09,956 INFO L267 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 256 xjuncts. [2018-11-12 20:31:12,239 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:12,249 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:12,339 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 [2018-11-12 20:31:12,340 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-12 20:31:12,392 INFO L267 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 256 xjuncts. [2018-11-12 20:31:14,213 INFO L267 ElimStorePlain]: Start of recursive call 97: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:14,233 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 [2018-11-12 20:31:14,374 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2018-11-12 20:31:14,399 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 [2018-11-12 20:31:14,401 INFO L267 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 8 xjuncts. [2018-11-12 20:31:14,482 INFO L267 ElimStorePlain]: Start of recursive call 102: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:14,498 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 [2018-11-12 20:31:14,567 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 [2018-11-12 20:31:14,567 INFO L267 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:14,622 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2018-11-12 20:31:14,623 INFO L267 ElimStorePlain]: Start of recursive call 106: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-12 20:31:14,655 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 [2018-11-12 20:31:14,655 INFO L267 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:14,675 INFO L267 ElimStorePlain]: Start of recursive call 104: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:14,720 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. [2018-11-12 20:31:14,720 INFO L202 ElimStorePlain]: Needed 107 recursive calls to eliminate 4 variables, input treesize:120, output treesize:18 [2018-11-12 20:31:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-12 20:31:14,784 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 20:31:14,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 20 [2018-11-12 20:31:14,784 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 20:31:14,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-12 20:31:14,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-12 20:31:14,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2018-11-12 20:31:14,787 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 17 states. [2018-11-12 20:31:15,412 WARN L179 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-11-12 20:31:16,202 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-11-12 20:31:16,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 20:31:16,786 INFO L93 Difference]: Finished difference Result 98 states and 108 transitions. [2018-11-12 20:31:16,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-12 20:31:16,793 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 32 [2018-11-12 20:31:16,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 20:31:16,794 INFO L225 Difference]: With dead ends: 98 [2018-11-12 20:31:16,795 INFO L226 Difference]: Without dead ends: 55 [2018-11-12 20:31:16,796 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2018-11-12 20:31:16,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-12 20:31:16,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2018-11-12 20:31:16,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-12 20:31:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2018-11-12 20:31:16,805 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 32 [2018-11-12 20:31:16,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 20:31:16,806 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2018-11-12 20:31:16,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-12 20:31:16,806 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2018-11-12 20:31:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-12 20:31:16,808 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:31:16,808 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 20:31:16,809 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:31:16,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:31:16,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1212985773, now seen corresponding path program 1 times [2018-11-12 20:31:16,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:31:16,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:31:16,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:31:16,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:31:16,810 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:31:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:31:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 20:31:17,063 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 20:31:17,063 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 20:31:17,063 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2018-11-12 20:31:17,063 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [18], [20], [24], [28], [31], [33], [37], [39], [43], [47], [50], [52], [54], [58], [62], [67], [69], [71], [77], [80], [82], [85], [87], [88], [89], [90], [92], [93] [2018-11-12 20:31:17,066 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 20:31:17,066 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 20:31:17,080 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 20:31:17,455 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 20:31:17,455 INFO L272 AbstractInterpreter]: Visited 34 different actions 258 times. Merged at 19 different actions 152 times. Widened at 4 different actions 16 times. Performed 1102 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1102 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 28 fixpoints after 7 different actions. Largest state had 32 variables. [2018-11-12 20:31:17,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:31:17,478 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 20:31:17,478 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 20:31:17,478 INFO L192 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 [2018-11-12 20:31:17,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:31:17,487 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 20:31:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:31:17,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 20:31:17,704 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-12 20:31:17,705 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 20:31:17,795 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 20:31:17,825 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 20:31:17,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2018-11-12 20:31:17,825 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 20:31:17,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 20:31:17,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 20:31:17,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-12 20:31:17,827 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand 10 states. [2018-11-12 20:31:18,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 20:31:18,709 INFO L93 Difference]: Finished difference Result 103 states and 113 transitions. [2018-11-12 20:31:18,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-12 20:31:18,709 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2018-11-12 20:31:18,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 20:31:18,710 INFO L225 Difference]: With dead ends: 103 [2018-11-12 20:31:18,710 INFO L226 Difference]: Without dead ends: 78 [2018-11-12 20:31:18,711 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-11-12 20:31:18,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-11-12 20:31:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 55. [2018-11-12 20:31:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-12 20:31:18,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-11-12 20:31:18,720 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 45 [2018-11-12 20:31:18,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 20:31:18,720 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-11-12 20:31:18,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 20:31:18,720 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-11-12 20:31:18,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-12 20:31:18,722 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:31:18,722 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 20:31:18,722 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:31:18,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:31:18,722 INFO L82 PathProgramCache]: Analyzing trace with hash -677671225, now seen corresponding path program 2 times [2018-11-12 20:31:18,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:31:18,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:31:18,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:31:18,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:31:18,724 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:31:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:31:19,898 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 31 [2018-11-12 20:31:20,131 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2018-11-12 20:31:20,305 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2018-11-12 20:31:20,739 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-12 20:31:20,739 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 20:31:20,740 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 20:31:20,740 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-12 20:31:20,740 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-12 20:31:20,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 20:31:20,740 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 20:31:20,756 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-12 20:31:20,756 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-12 20:31:20,947 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-12 20:31:20,947 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-12 20:31:20,952 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 20:31:20,959 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-12 20:31:20,969 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:20,971 INFO L700 Elim1Store]: detected not equals via solver [2018-11-12 20:31:20,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-12 20:31:20,972 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:20,980 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:20,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:20,996 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:18 [2018-11-12 20:31:21,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 45 [2018-11-12 20:31:21,684 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 [2018-11-12 20:31:21,685 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:21,689 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:21,710 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-12 20:31:21,710 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:74, output treesize:70 [2018-11-12 20:31:26,914 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 57 treesize of output 61 [2018-11-12 20:31:26,941 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:26,942 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 57 treesize of output 53 [2018-11-12 20:31:26,943 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:27,250 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:27,251 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 36 treesize of output 33 [2018-11-12 20:31:27,252 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-12 20:31:27,317 INFO L682 Elim1Store]: detected equality via solver [2018-11-12 20:31:27,522 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 20:31:27,524 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [Lde.uni_freiburg.informatik.ultimate.logic.Term; at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.unaryNumericMinus(SmtUtils.java:578) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1272) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubstitutionWithLocalSimplification.convertApplicationTerm(SubstitutionWithLocalSimplification.java:57) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:320) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:434) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-12 20:31:27,530 INFO L168 Benchmark]: Toolchain (without parser) took 69657.73 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -974.7 MB). Peak memory consumption was 466.6 MB. Max. memory is 7.1 GB. [2018-11-12 20:31:27,530 INFO L168 Benchmark]: CDTParser took 0.27 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. [2018-11-12 20:31:27,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.81 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. [2018-11-12 20:31:27,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.11 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. [2018-11-12 20:31:27,531 INFO L168 Benchmark]: Boogie Preprocessor took 63.94 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. [2018-11-12 20:31:27,531 INFO L168 Benchmark]: RCFGBuilder took 638.59 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -740.2 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2018-11-12 20:31:27,532 INFO L168 Benchmark]: TraceAbstraction took 68559.72 ms. Allocated memory was 2.2 GB in the beginning and 3.0 GB in the end (delta: 729.8 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -245.1 MB). Peak memory consumption was 484.7 MB. Max. memory is 7.1 GB. [2018-11-12 20:31:27,534 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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. * CACSL2BoogieTranslator took 341.81 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 46.11 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 63.94 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 638.59 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -740.2 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 68559.72 ms. Allocated memory was 2.2 GB in the beginning and 3.0 GB in the end (delta: 729.8 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -245.1 MB). Peak memory consumption was 484.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ClassCastException: [Ljava.lang.Object; cannot be cast to [Lde.uni_freiburg.informatik.ultimate.logic.Term; de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ClassCastException: [Ljava.lang.Object; cannot be cast to [Lde.uni_freiburg.informatik.ultimate.logic.Term;: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.unaryNumericMinus(SmtUtils.java:578) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...