/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-fpi/ms5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 11:18:20,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 11:18:20,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 11:18:20,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 11:18:20,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 11:18:20,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 11:18:20,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 11:18:20,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 11:18:20,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 11:18:20,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 11:18:20,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 11:18:20,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 11:18:20,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 11:18:20,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 11:18:20,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 11:18:20,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 11:18:20,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 11:18:20,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 11:18:20,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 11:18:20,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 11:18:20,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 11:18:20,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 11:18:20,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 11:18:20,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 11:18:20,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 11:18:20,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 11:18:20,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 11:18:20,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 11:18:20,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 11:18:20,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 11:18:20,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 11:18:20,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 11:18:20,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 11:18:20,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 11:18:20,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 11:18:20,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 11:18:20,925 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 11:18:20,981 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 11:18:20,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 11:18:20,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 11:18:20,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 11:18:20,987 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 11:18:20,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 11:18:20,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 11:18:20,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 11:18:20,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 11:18:20,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 11:18:20,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 11:18:20,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 11:18:20,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 11:18:20,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 11:18:20,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 11:18:20,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 11:18:20,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 11:18:20,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 11:18:20,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 11:18:20,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 11:18:20,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 11:18:20,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 11:18:20,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 11:18:20,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 11:18:20,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 11:18:20,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 11:18:21,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 11:18:21,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 11:18:21,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 11:18:21,470 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 11:18:21,471 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 11:18:21,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ms5.c [2021-01-06 11:18:21,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/651fbfe42/a72249d7006d444d97b40c86bfe4cf9c/FLAGf155a6c13 [2021-01-06 11:18:22,289 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 11:18:22,289 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/ms5.c [2021-01-06 11:18:22,299 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/651fbfe42/a72249d7006d444d97b40c86bfe4cf9c/FLAGf155a6c13 [2021-01-06 11:18:22,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/651fbfe42/a72249d7006d444d97b40c86bfe4cf9c [2021-01-06 11:18:22,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 11:18:22,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 11:18:22,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 11:18:22,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 11:18:22,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 11:18:22,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:18:22" (1/1) ... [2021-01-06 11:18:22,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c818c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:22, skipping insertion in model container [2021-01-06 11:18:22,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:18:22" (1/1) ... [2021-01-06 11:18:22,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 11:18:22,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 11:18:22,967 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/ms5.c[586,599] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[0]]] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[0]]] [2021-01-06 11:18:23,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:18:23,017 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 11:18:23,041 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/ms5.c[586,599] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] [2021-01-06 11:18:23,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:18:23,101 INFO L208 MainTranslator]: Completed translation [2021-01-06 11:18:23,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23 WrapperNode [2021-01-06 11:18:23,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 11:18:23,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 11:18:23,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 11:18:23,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 11:18:23,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23" (1/1) ... [2021-01-06 11:18:23,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23" (1/1) ... [2021-01-06 11:18:23,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 11:18:23,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 11:18:23,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 11:18:23,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 11:18:23,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23" (1/1) ... [2021-01-06 11:18:23,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23" (1/1) ... [2021-01-06 11:18:23,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23" (1/1) ... [2021-01-06 11:18:23,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23" (1/1) ... [2021-01-06 11:18:23,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23" (1/1) ... [2021-01-06 11:18:23,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23" (1/1) ... [2021-01-06 11:18:23,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23" (1/1) ... [2021-01-06 11:18:23,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 11:18:23,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 11:18:23,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 11:18:23,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 11:18:23,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 11:18:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 11:18:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 11:18:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 11:18:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-06 11:18:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 11:18:23,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 11:18:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 11:18:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 11:18:23,698 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 11:18:23,699 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-06 11:18:23,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:18:23 BoogieIcfgContainer [2021-01-06 11:18:23,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 11:18:23,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 11:18:23,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 11:18:23,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 11:18:23,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:18:22" (1/3) ... [2021-01-06 11:18:23,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a264a3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:18:23, skipping insertion in model container [2021-01-06 11:18:23,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:18:23" (2/3) ... [2021-01-06 11:18:23,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a264a3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:18:23, skipping insertion in model container [2021-01-06 11:18:23,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:18:23" (3/3) ... [2021-01-06 11:18:23,711 INFO L111 eAbstractionObserver]: Analyzing ICFG ms5.c [2021-01-06 11:18:23,719 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 11:18:23,725 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 11:18:23,748 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 11:18:23,782 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 11:18:23,782 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 11:18:23,782 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 11:18:23,783 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 11:18:23,783 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 11:18:23,783 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 11:18:23,783 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 11:18:23,784 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 11:18:23,801 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2021-01-06 11:18:23,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 11:18:23,808 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:18:23,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:18:23,810 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:18:23,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:18:23,820 INFO L82 PathProgramCache]: Analyzing trace with hash 356661439, now seen corresponding path program 1 times [2021-01-06 11:18:23,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:18:23,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522555106] [2021-01-06 11:18:23,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:18:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:18:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:24,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522555106] [2021-01-06 11:18:24,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:18:24,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 11:18:24,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472676641] [2021-01-06 11:18:24,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 11:18:24,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:18:24,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 11:18:24,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 11:18:24,262 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2021-01-06 11:18:24,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:18:24,285 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2021-01-06 11:18:24,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 11:18:24,287 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2021-01-06 11:18:24,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:18:24,305 INFO L225 Difference]: With dead ends: 34 [2021-01-06 11:18:24,305 INFO L226 Difference]: Without dead ends: 15 [2021-01-06 11:18:24,311 INFO L677 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 [2021-01-06 11:18:24,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-01-06 11:18:24,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-01-06 11:18:24,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-01-06 11:18:24,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-01-06 11:18:24,359 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2021-01-06 11:18:24,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:18:24,360 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-01-06 11:18:24,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 11:18:24,361 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-01-06 11:18:24,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 11:18:24,363 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:18:24,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:18:24,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 11:18:24,365 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:18:24,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:18:24,372 INFO L82 PathProgramCache]: Analyzing trace with hash -452685187, now seen corresponding path program 1 times [2021-01-06 11:18:24,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:18:24,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859160025] [2021-01-06 11:18:24,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:18:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:18:24,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:24,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859160025] [2021-01-06 11:18:24,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:18:24,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 11:18:24,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545740903] [2021-01-06 11:18:24,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 11:18:24,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:18:24,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 11:18:24,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 11:18:24,504 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2021-01-06 11:18:24,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:18:24,626 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-01-06 11:18:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 11:18:24,627 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-01-06 11:18:24,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:18:24,629 INFO L225 Difference]: With dead ends: 28 [2021-01-06 11:18:24,629 INFO L226 Difference]: Without dead ends: 20 [2021-01-06 11:18:24,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 11:18:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-01-06 11:18:24,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-01-06 11:18:24,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-01-06 11:18:24,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-01-06 11:18:24,646 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2021-01-06 11:18:24,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:18:24,648 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-01-06 11:18:24,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 11:18:24,648 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-01-06 11:18:24,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 11:18:24,652 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:18:24,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:18:24,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 11:18:24,654 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:18:24,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:18:24,656 INFO L82 PathProgramCache]: Analyzing trace with hash 623611495, now seen corresponding path program 1 times [2021-01-06 11:18:24,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:18:24,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634013601] [2021-01-06 11:18:24,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:18:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:18:24,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-06 11:18:24,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634013601] [2021-01-06 11:18:24,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:18:24,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 11:18:24,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134825962] [2021-01-06 11:18:24,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 11:18:24,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:18:24,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 11:18:24,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 11:18:24,880 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 5 states. [2021-01-06 11:18:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:18:24,969 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-01-06 11:18:24,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 11:18:24,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2021-01-06 11:18:24,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:18:24,974 INFO L225 Difference]: With dead ends: 25 [2021-01-06 11:18:24,977 INFO L226 Difference]: Without dead ends: 21 [2021-01-06 11:18:24,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 11:18:24,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-01-06 11:18:24,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-01-06 11:18:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-01-06 11:18:24,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-01-06 11:18:24,996 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16 [2021-01-06 11:18:24,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:18:24,996 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-01-06 11:18:24,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 11:18:24,997 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-01-06 11:18:24,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 11:18:24,998 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:18:24,998 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:18:24,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 11:18:24,998 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:18:25,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:18:25,000 INFO L82 PathProgramCache]: Analyzing trace with hash -422196611, now seen corresponding path program 1 times [2021-01-06 11:18:25,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:18:25,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62916508] [2021-01-06 11:18:25,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:18:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:18:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:25,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62916508] [2021-01-06 11:18:25,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970069589] [2021-01-06 11:18:25,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:18:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:18:25,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-06 11:18:25,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:18:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:25,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:18:25,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-01-06 11:18:25,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054667767] [2021-01-06 11:18:25,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 11:18:25,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:18:25,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 11:18:25,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-01-06 11:18:25,400 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 10 states. [2021-01-06 11:18:25,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:18:25,524 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2021-01-06 11:18:25,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 11:18:25,525 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2021-01-06 11:18:25,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:18:25,526 INFO L225 Difference]: With dead ends: 39 [2021-01-06 11:18:25,526 INFO L226 Difference]: Without dead ends: 25 [2021-01-06 11:18:25,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-01-06 11:18:25,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-01-06 11:18:25,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2021-01-06 11:18:25,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-01-06 11:18:25,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-01-06 11:18:25,533 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 19 [2021-01-06 11:18:25,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:18:25,533 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-01-06 11:18:25,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 11:18:25,534 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2021-01-06 11:18:25,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 11:18:25,535 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:18:25,535 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:18:25,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:18:25,750 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:18:25,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:18:25,752 INFO L82 PathProgramCache]: Analyzing trace with hash 692240447, now seen corresponding path program 2 times [2021-01-06 11:18:25,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:18:25,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853846351] [2021-01-06 11:18:25,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:18:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:18:26,441 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:26,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853846351] [2021-01-06 11:18:26,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335786387] [2021-01-06 11:18:26,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:18:26,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:18:26,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:18:26,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 30 conjunts are in the unsatisfiable core [2021-01-06 11:18:26,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:18:26,700 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 17 treesize of output 13 [2021-01-06 11:18:26,701 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:26,713 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:26,714 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:18:26,714 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2021-01-06 11:18:26,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:26,911 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-01-06 11:18:26,914 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:26,927 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:26,928 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:18:26,929 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2021-01-06 11:18:27,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:27,098 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:27,099 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 50 [2021-01-06 11:18:27,103 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:27,136 INFO L625 ElimStorePlain]: treesize reduction 18, result has 70.5 percent of original size [2021-01-06 11:18:27,140 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-06 11:18:27,141 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:43 [2021-01-06 11:18:27,473 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:27,486 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:18:27,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:27,515 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:27,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:18:27,531 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:27,533 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:18:27,539 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:18:27,547 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:18:27,602 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:27,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:18:27,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 27 [2021-01-06 11:18:27,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133796478] [2021-01-06 11:18:27,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-06 11:18:27,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:18:27,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-06 11:18:27,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2021-01-06 11:18:27,609 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 27 states. [2021-01-06 11:18:28,795 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2021-01-06 11:18:30,011 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 29 [2021-01-06 11:18:30,543 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2021-01-06 11:18:32,096 WARN L197 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 71 DAG size of output: 41 [2021-01-06 11:18:33,590 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2021-01-06 11:18:34,284 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2021-01-06 11:18:34,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:18:34,703 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2021-01-06 11:18:34,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-06 11:18:34,704 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 21 [2021-01-06 11:18:34,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:18:34,705 INFO L225 Difference]: With dead ends: 62 [2021-01-06 11:18:34,705 INFO L226 Difference]: Without dead ends: 47 [2021-01-06 11:18:34,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=537, Invalid=2325, Unknown=0, NotChecked=0, Total=2862 [2021-01-06 11:18:34,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-01-06 11:18:34,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2021-01-06 11:18:34,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2021-01-06 11:18:34,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2021-01-06 11:18:34,725 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 21 [2021-01-06 11:18:34,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:18:34,726 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2021-01-06 11:18:34,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2021-01-06 11:18:34,726 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2021-01-06 11:18:34,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-06 11:18:34,731 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:18:34,731 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:18:34,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:18:34,946 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:18:34,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:18:34,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1384678109, now seen corresponding path program 3 times [2021-01-06 11:18:34,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:18:34,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980425074] [2021-01-06 11:18:34,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:18:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:18:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:35,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980425074] [2021-01-06 11:18:35,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630951162] [2021-01-06 11:18:35,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:18:35,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-01-06 11:18:35,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:18:35,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 36 conjunts are in the unsatisfiable core [2021-01-06 11:18:35,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:18:36,100 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 17 treesize of output 13 [2021-01-06 11:18:36,101 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:36,113 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:36,114 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:18:36,115 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2021-01-06 11:18:36,214 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:36,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:36,234 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-01-06 11:18:36,237 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:36,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:36,250 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-01-06 11:18:36,252 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:36,277 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:36,277 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 58 [2021-01-06 11:18:36,280 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:36,447 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-01-06 11:18:36,449 INFO L625 ElimStorePlain]: treesize reduction 27, result has 82.6 percent of original size [2021-01-06 11:18:36,451 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2021-01-06 11:18:36,451 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:143, output treesize:128 [2021-01-06 11:18:36,594 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:18:37,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:37,099 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:37,100 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 54 [2021-01-06 11:18:37,103 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:37,159 INFO L625 ElimStorePlain]: treesize reduction 27, result has 69.0 percent of original size [2021-01-06 11:18:37,163 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-06 11:18:37,164 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:71, output treesize:60 [2021-01-06 11:18:37,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:37,321 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:37,322 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 103 [2021-01-06 11:18:37,325 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:37,382 INFO L625 ElimStorePlain]: treesize reduction 90, result has 44.4 percent of original size [2021-01-06 11:18:37,386 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-06 11:18:37,386 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:89, output treesize:72 [2021-01-06 11:18:37,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:37,847 INFO L348 Elim1Store]: treesize reduction 17, result has 83.5 percent of original size [2021-01-06 11:18:37,848 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 150 [2021-01-06 11:18:37,853 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:37,938 INFO L625 ElimStorePlain]: treesize reduction 134, result has 40.2 percent of original size [2021-01-06 11:18:37,946 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-01-06 11:18:37,946 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:105, output treesize:90 [2021-01-06 11:18:38,432 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:38,437 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:38,439 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:18:38,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:18:38,473 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:38,476 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:38,477 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:18:38,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:38,486 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:18:38,492 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:18:38,496 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-06 11:18:38,560 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:38,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:18:38,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 34 [2021-01-06 11:18:38,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869463912] [2021-01-06 11:18:38,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-01-06 11:18:38,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:18:38,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-01-06 11:18:38,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=989, Unknown=0, NotChecked=0, Total=1122 [2021-01-06 11:18:38,564 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 34 states. [2021-01-06 11:18:39,434 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 41 [2021-01-06 11:18:40,150 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-01-06 11:18:43,534 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 46 [2021-01-06 11:18:44,140 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 52 [2021-01-06 11:18:44,375 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 49 [2021-01-06 11:18:44,855 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 68 [2021-01-06 11:18:45,333 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-01-06 11:18:45,843 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 62 [2021-01-06 11:18:46,038 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2021-01-06 11:18:48,305 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-01-06 11:18:48,543 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 53 [2021-01-06 11:18:48,958 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2021-01-06 11:18:49,440 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-01-06 11:18:51,837 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2021-01-06 11:18:52,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:18:52,213 INFO L93 Difference]: Finished difference Result 105 states and 125 transitions. [2021-01-06 11:18:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-01-06 11:18:52,214 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 26 [2021-01-06 11:18:52,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:18:52,219 INFO L225 Difference]: With dead ends: 105 [2021-01-06 11:18:52,219 INFO L226 Difference]: Without dead ends: 87 [2021-01-06 11:18:52,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1409 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=878, Invalid=4671, Unknown=1, NotChecked=0, Total=5550 [2021-01-06 11:18:52,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-01-06 11:18:52,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 79. [2021-01-06 11:18:52,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2021-01-06 11:18:52,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2021-01-06 11:18:52,246 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 92 transitions. Word has length 26 [2021-01-06 11:18:52,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:18:52,246 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 92 transitions. [2021-01-06 11:18:52,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-01-06 11:18:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 92 transitions. [2021-01-06 11:18:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-06 11:18:52,249 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:18:52,250 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:18:52,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:18:52,467 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:18:52,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:18:52,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1770405019, now seen corresponding path program 4 times [2021-01-06 11:18:52,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:18:52,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904452028] [2021-01-06 11:18:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:18:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:18:52,592 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 25 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:52,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904452028] [2021-01-06 11:18:52,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868951148] [2021-01-06 11:18:52,593 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:18:52,635 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:18:52,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:18:52,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 11:18:52,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:18:52,741 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-01-06 11:18:52,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:18:52,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 15 [2021-01-06 11:18:52,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338344756] [2021-01-06 11:18:52,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 11:18:52,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:18:52,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 11:18:52,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-01-06 11:18:52,744 INFO L87 Difference]: Start difference. First operand 79 states and 92 transitions. Second operand 15 states. [2021-01-06 11:18:52,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:18:52,915 INFO L93 Difference]: Finished difference Result 85 states and 98 transitions. [2021-01-06 11:18:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 11:18:52,916 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 30 [2021-01-06 11:18:52,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:18:52,922 INFO L225 Difference]: With dead ends: 85 [2021-01-06 11:18:52,922 INFO L226 Difference]: Without dead ends: 64 [2021-01-06 11:18:52,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2021-01-06 11:18:52,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-01-06 11:18:52,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-01-06 11:18:52,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2021-01-06 11:18:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2021-01-06 11:18:52,961 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 30 [2021-01-06 11:18:52,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:18:52,961 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2021-01-06 11:18:52,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 11:18:52,961 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2021-01-06 11:18:52,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-06 11:18:52,964 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:18:52,964 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:18:53,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:18:53,179 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:18:53,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:18:53,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1914654111, now seen corresponding path program 5 times [2021-01-06 11:18:53,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:18:53,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129625310] [2021-01-06 11:18:53,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:18:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:18:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:53,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129625310] [2021-01-06 11:18:53,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668688789] [2021-01-06 11:18:53,377 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:18:53,457 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-01-06 11:18:53,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:18:53,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 11:18:53,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:18:53,598 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:53,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:18:53,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-01-06 11:18:53,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249584102] [2021-01-06 11:18:53,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-01-06 11:18:53,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:18:53,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-01-06 11:18:53,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2021-01-06 11:18:53,600 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand 17 states. [2021-01-06 11:18:53,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:18:53,993 INFO L93 Difference]: Finished difference Result 111 states and 134 transitions. [2021-01-06 11:18:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 11:18:53,994 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 30 [2021-01-06 11:18:53,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:18:53,995 INFO L225 Difference]: With dead ends: 111 [2021-01-06 11:18:53,995 INFO L226 Difference]: Without dead ends: 74 [2021-01-06 11:18:53,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2021-01-06 11:18:53,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-01-06 11:18:54,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 38. [2021-01-06 11:18:54,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-01-06 11:18:54,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2021-01-06 11:18:54,004 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 30 [2021-01-06 11:18:54,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:18:54,005 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2021-01-06 11:18:54,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-01-06 11:18:54,005 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2021-01-06 11:18:54,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-06 11:18:54,006 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:18:54,006 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:18:54,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:18:54,220 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:18:54,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:18:54,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1023492733, now seen corresponding path program 6 times [2021-01-06 11:18:54,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:18:54,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146847651] [2021-01-06 11:18:54,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:18:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:18:55,081 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 41 [2021-01-06 11:18:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:55,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146847651] [2021-01-06 11:18:55,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756690965] [2021-01-06 11:18:55,829 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:18:55,905 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-01-06 11:18:55,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:18:55,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 40 conjunts are in the unsatisfiable core [2021-01-06 11:18:55,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:18:56,011 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 17 treesize of output 13 [2021-01-06 11:18:56,013 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,023 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:56,025 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,025 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2021-01-06 11:18:56,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,124 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2021-01-06 11:18:56,125 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,139 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:56,140 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,140 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:41 [2021-01-06 11:18:56,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,251 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-01-06 11:18:56,252 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,265 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:56,266 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,266 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2021-01-06 11:18:56,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,424 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-01-06 11:18:56,426 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,444 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:56,445 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,445 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-01-06 11:18:56,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:18:56,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,610 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 51 [2021-01-06 11:18:56,615 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,635 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:56,636 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,636 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:71, output treesize:56 [2021-01-06 11:18:56,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:18:56,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:56,812 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 54 [2021-01-06 11:18:56,814 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,835 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:56,836 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:18:56,837 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:83, output treesize:70 [2021-01-06 11:18:57,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:18:57,143 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 45 [2021-01-06 11:18:57,145 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:18:57,170 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:18:57,171 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-06 11:18:57,172 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:54 [2021-01-06 11:18:57,294 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:57,299 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:57,302 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:18:57,303 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:18:57,306 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:18:57,307 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:18:57,311 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:18:57,313 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:18:57,315 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:18:57,317 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:18:57,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:18:57,322 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:18:57,327 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:18:57,396 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:18:57,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:18:57,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19] total 38 [2021-01-06 11:18:57,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271952922] [2021-01-06 11:18:57,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-01-06 11:18:57,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:18:57,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-01-06 11:18:57,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1171, Unknown=0, NotChecked=0, Total=1406 [2021-01-06 11:18:57,400 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 38 states. [2021-01-06 11:18:58,238 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-01-06 11:18:59,361 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2021-01-06 11:18:59,539 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 37 [2021-01-06 11:18:59,707 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2021-01-06 11:18:59,918 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2021-01-06 11:19:00,327 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-01-06 11:19:00,693 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-01-06 11:19:01,079 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2021-01-06 11:19:01,449 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-01-06 11:19:01,861 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-01-06 11:19:02,018 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2021-01-06 11:19:02,256 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2021-01-06 11:19:02,570 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2021-01-06 11:19:02,992 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2021-01-06 11:19:03,220 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-01-06 11:19:03,482 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2021-01-06 11:19:03,714 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-01-06 11:19:03,923 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 55 [2021-01-06 11:19:03,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:03,960 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2021-01-06 11:19:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-01-06 11:19:03,960 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 31 [2021-01-06 11:19:03,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:03,961 INFO L225 Difference]: With dead ends: 84 [2021-01-06 11:19:03,961 INFO L226 Difference]: Without dead ends: 40 [2021-01-06 11:19:03,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2129 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=965, Invalid=5515, Unknown=0, NotChecked=0, Total=6480 [2021-01-06 11:19:03,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-01-06 11:19:03,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2021-01-06 11:19:03,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-01-06 11:19:03,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2021-01-06 11:19:03,973 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 31 [2021-01-06 11:19:03,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:03,973 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2021-01-06 11:19:03,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2021-01-06 11:19:03,973 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2021-01-06 11:19:03,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-01-06 11:19:03,974 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:03,974 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:04,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:04,188 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:04,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:04,189 INFO L82 PathProgramCache]: Analyzing trace with hash -880704545, now seen corresponding path program 7 times [2021-01-06 11:19:04,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:04,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247293521] [2021-01-06 11:19:04,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:06,258 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:06,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247293521] [2021-01-06 11:19:06,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921892340] [2021-01-06 11:19:06,259 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:06,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 41 conjunts are in the unsatisfiable core [2021-01-06 11:19:06,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:06,341 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-01-06 11:19:06,343 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:06,348 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:06,349 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:06,349 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:8 [2021-01-06 11:19:06,449 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-01-06 11:19:06,451 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:06,463 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:06,464 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:06,464 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2021-01-06 11:19:06,605 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:06,606 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 58 [2021-01-06 11:19:06,608 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:06,639 INFO L625 ElimStorePlain]: treesize reduction 24, result has 55.6 percent of original size [2021-01-06 11:19:06,640 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:06,640 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2021-01-06 11:19:06,851 INFO L348 Elim1Store]: treesize reduction 56, result has 49.1 percent of original size [2021-01-06 11:19:06,852 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 77 [2021-01-06 11:19:06,854 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:06,895 INFO L625 ElimStorePlain]: treesize reduction 24, result has 65.7 percent of original size [2021-01-06 11:19:06,896 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:06,897 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-01-06 11:19:07,098 INFO L348 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2021-01-06 11:19:07,098 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 46 [2021-01-06 11:19:07,100 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:07,117 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:07,118 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:07,118 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:44 [2021-01-06 11:19:07,312 INFO L348 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-01-06 11:19:07,312 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 56 [2021-01-06 11:19:07,313 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:07,338 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:07,339 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:07,339 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:58, output treesize:54 [2021-01-06 11:19:07,614 INFO L348 Elim1Store]: treesize reduction 72, result has 44.2 percent of original size [2021-01-06 11:19:07,614 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 69 treesize of output 128 [2021-01-06 11:19:07,618 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:07,677 INFO L625 ElimStorePlain]: treesize reduction 90, result has 40.8 percent of original size [2021-01-06 11:19:07,678 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:07,679 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:62 [2021-01-06 11:19:07,969 INFO L348 Elim1Store]: treesize reduction 72, result has 44.2 percent of original size [2021-01-06 11:19:07,970 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 128 [2021-01-06 11:19:07,975 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:08,033 INFO L625 ElimStorePlain]: treesize reduction 84, result has 45.5 percent of original size [2021-01-06 11:19:08,034 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:08,035 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:85, output treesize:70 [2021-01-06 11:19:08,432 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-01-06 11:19:08,433 INFO L348 Elim1Store]: treesize reduction 89, result has 56.8 percent of original size [2021-01-06 11:19:08,433 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 86 treesize of output 202 [2021-01-06 11:19:08,441 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:08,524 INFO L625 ElimStorePlain]: treesize reduction 235, result has 25.4 percent of original size [2021-01-06 11:19:08,525 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:08,526 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:80 [2021-01-06 11:19:08,798 INFO L348 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-01-06 11:19:08,799 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 64 [2021-01-06 11:19:08,800 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:08,823 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:08,826 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-06 11:19:08,827 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:95, output treesize:73 [2021-01-06 11:19:08,992 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:08,994 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:08,999 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:09,000 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:19:09,005 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:09,008 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:09,010 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:09,011 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:19:09,015 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:09,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:19:09,019 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:19:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:09,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:19:09,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 22] total 45 [2021-01-06 11:19:09,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19353069] [2021-01-06 11:19:09,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-01-06 11:19:09,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:09,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-01-06 11:19:09,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1769, Unknown=0, NotChecked=0, Total=1980 [2021-01-06 11:19:09,125 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 45 states. [2021-01-06 11:19:09,969 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2021-01-06 11:19:11,887 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 44 [2021-01-06 11:19:12,147 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 46 [2021-01-06 11:19:12,353 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2021-01-06 11:19:12,638 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2021-01-06 11:19:13,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:13,154 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2021-01-06 11:19:13,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-06 11:19:13,155 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 36 [2021-01-06 11:19:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:13,156 INFO L225 Difference]: With dead ends: 46 [2021-01-06 11:19:13,156 INFO L226 Difference]: Without dead ends: 42 [2021-01-06 11:19:13,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=497, Invalid=3925, Unknown=0, NotChecked=0, Total=4422 [2021-01-06 11:19:13,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-01-06 11:19:13,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2021-01-06 11:19:13,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-01-06 11:19:13,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2021-01-06 11:19:13,165 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 36 [2021-01-06 11:19:13,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:13,165 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2021-01-06 11:19:13,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 45 states. [2021-01-06 11:19:13,165 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2021-01-06 11:19:13,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-01-06 11:19:13,166 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:13,167 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:13,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-06 11:19:13,374 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:13,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:13,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1812577787, now seen corresponding path program 8 times [2021-01-06 11:19:13,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:13,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392157830] [2021-01-06 11:19:13,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:13,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392157830] [2021-01-06 11:19:13,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146663459] [2021-01-06 11:19:13,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:13,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:19:13,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:19:13,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 11:19:13,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:13,888 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 51 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:13,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:19:13,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2021-01-06 11:19:13,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818291127] [2021-01-06 11:19:13,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-01-06 11:19:13,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:13,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-01-06 11:19:13,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-01-06 11:19:13,891 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 22 states. [2021-01-06 11:19:14,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:14,237 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2021-01-06 11:19:14,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-06 11:19:14,238 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 39 [2021-01-06 11:19:14,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:14,239 INFO L225 Difference]: With dead ends: 69 [2021-01-06 11:19:14,239 INFO L226 Difference]: Without dead ends: 45 [2021-01-06 11:19:14,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2021-01-06 11:19:14,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-01-06 11:19:14,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2021-01-06 11:19:14,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-01-06 11:19:14,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2021-01-06 11:19:14,249 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 39 [2021-01-06 11:19:14,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:14,249 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-01-06 11:19:14,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-01-06 11:19:14,250 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2021-01-06 11:19:14,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-06 11:19:14,251 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:14,251 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:14,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-01-06 11:19:14,467 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:14,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:14,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1463861959, now seen corresponding path program 9 times [2021-01-06 11:19:14,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:14,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155812720] [2021-01-06 11:19:14,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:15,136 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 40 [2021-01-06 11:19:15,423 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2021-01-06 11:19:15,723 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2021-01-06 11:19:15,879 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-01-06 11:19:16,060 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-01-06 11:19:18,028 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:18,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155812720] [2021-01-06 11:19:18,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526030958] [2021-01-06 11:19:18,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:18,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-01-06 11:19:18,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:19:18,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 58 conjunts are in the unsatisfiable core [2021-01-06 11:19:18,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:18,423 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 17 treesize of output 13 [2021-01-06 11:19:18,424 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:18,441 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:18,442 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:18,443 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2021-01-06 11:19:18,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:18,659 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-01-06 11:19:18,660 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:18,677 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:18,678 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:18,679 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2021-01-06 11:19:18,788 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:19:18,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:18,868 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:18,869 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 102 [2021-01-06 11:19:18,872 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:18,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:18,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:18,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:18,903 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-01-06 11:19:18,905 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:18,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:18,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:18,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:18,927 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-01-06 11:19:18,933 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:19,189 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2021-01-06 11:19:19,190 INFO L625 ElimStorePlain]: treesize reduction 48, result has 75.6 percent of original size [2021-01-06 11:19:19,192 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2021-01-06 11:19:19,192 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:161, output treesize:149 [2021-01-06 11:19:19,411 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-01-06 11:19:19,650 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-01-06 11:19:19,658 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:19:19,659 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:19:19,662 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:19:19,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,733 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 59 [2021-01-06 11:19:19,735 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:19,745 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:19,746 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:19,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,804 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 59 [2021-01-06 11:19:19,806 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:19,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,928 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:19,929 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 151 [2021-01-06 11:19:19,932 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:19,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:19,984 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 61 [2021-01-06 11:19:19,989 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:20,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,041 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 59 [2021-01-06 11:19:20,043 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:20,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,132 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:20,133 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 89 [2021-01-06 11:19:20,137 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:20,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:20,205 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2021-01-06 11:19:20,207 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:20,218 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:20,219 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:20,911 WARN L197 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-06 11:19:20,912 INFO L625 ElimStorePlain]: treesize reduction 341, result has 45.4 percent of original size [2021-01-06 11:19:20,915 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2021-01-06 11:19:20,915 INFO L244 ElimStorePlain]: Needed 10 recursive calls to eliminate 1 variables, input treesize:694, output treesize:283 [2021-01-06 11:19:21,310 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-01-06 11:19:21,697 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-01-06 11:19:21,712 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-01-06 11:19:21,713 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:19:21,715 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:19:21,716 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:19:21,718 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:19:21,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,804 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 82 [2021-01-06 11:19:21,809 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:21,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,826 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:21,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,868 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-01-06 11:19:21,871 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:21,884 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:21,885 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:21,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,959 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 80 [2021-01-06 11:19:21,966 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:21,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:21,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,045 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 80 [2021-01-06 11:19:22,047 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:22,059 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:22,060 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:22,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,147 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 76 [2021-01-06 11:19:22,150 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:22,162 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:22,163 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:22,174 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:22,175 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,253 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 80 [2021-01-06 11:19:22,256 INFO L547 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:22,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,336 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 80 [2021-01-06 11:19:22,340 INFO L547 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:22,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:22,442 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:22,442 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 68 treesize of output 168 [2021-01-06 11:19:22,448 INFO L547 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:23,308 WARN L197 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 65 [2021-01-06 11:19:23,309 INFO L625 ElimStorePlain]: treesize reduction 328, result has 61.8 percent of original size [2021-01-06 11:19:23,312 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2021-01-06 11:19:23,312 INFO L244 ElimStorePlain]: Needed 13 recursive calls to eliminate 1 variables, input treesize:1211, output treesize:531 [2021-01-06 11:19:23,846 WARN L197 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-01-06 11:19:23,854 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2021-01-06 11:19:25,882 WARN L197 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-01-06 11:19:25,939 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2021-01-06 11:19:27,479 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 129 [2021-01-06 11:19:28,154 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-01-06 11:19:28,256 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:19:28,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,387 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 97 [2021-01-06 11:19:28,390 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:28,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,478 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 80 [2021-01-06 11:19:28,480 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:28,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:28,584 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:28,585 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 239 [2021-01-06 11:19:28,590 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:29,165 WARN L197 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 136 [2021-01-06 11:19:29,167 INFO L625 ElimStorePlain]: treesize reduction 188, result has 71.3 percent of original size [2021-01-06 11:19:29,189 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 3 xjuncts. [2021-01-06 11:19:29,189 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:478, output treesize:466 [2021-01-06 11:19:29,894 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-01-06 11:19:30,533 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-01-06 11:19:30,619 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:19:30,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:30,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,730 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:30,775 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 87 [2021-01-06 11:19:30,778 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:30,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,796 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:30,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,824 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:30,938 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:30,938 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 129 treesize of output 250 [2021-01-06 11:19:30,944 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:30,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,974 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:30,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:30,981 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 102 [2021-01-06 11:19:30,984 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:31,551 WARN L197 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 140 [2021-01-06 11:19:31,552 INFO L625 ElimStorePlain]: treesize reduction 244, result has 66.4 percent of original size [2021-01-06 11:19:31,585 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 3 xjuncts. [2021-01-06 11:19:31,585 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:553, output treesize:586 [2021-01-06 11:19:32,591 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-01-06 11:19:33,660 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-01-06 11:19:33,776 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: variable got div captured [2021-01-06 11:19:33,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:19:33,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2021-01-06 11:19:33,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334040922] [2021-01-06 11:19:33,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-01-06 11:19:33,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:33,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-01-06 11:19:33,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=2086, Unknown=0, NotChecked=0, Total=2352 [2021-01-06 11:19:33,780 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 31 states. [2021-01-06 11:19:34,925 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-06 11:19:35,371 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-01-06 11:19:36,168 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2021-01-06 11:19:36,576 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2021-01-06 11:19:37,130 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2021-01-06 11:19:37,456 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-06 11:19:39,037 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2021-01-06 11:19:39,334 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 76 [2021-01-06 11:19:39,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:39,502 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2021-01-06 11:19:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-06 11:19:39,504 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 41 [2021-01-06 11:19:39,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:39,505 INFO L225 Difference]: With dead ends: 75 [2021-01-06 11:19:39,505 INFO L226 Difference]: Without dead ends: 71 [2021-01-06 11:19:39,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1618 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=692, Invalid=5628, Unknown=0, NotChecked=0, Total=6320 [2021-01-06 11:19:39,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-01-06 11:19:39,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 50. [2021-01-06 11:19:39,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2021-01-06 11:19:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2021-01-06 11:19:39,527 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 41 [2021-01-06 11:19:39,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:39,528 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2021-01-06 11:19:39,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-01-06 11:19:39,528 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2021-01-06 11:19:39,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-06 11:19:39,529 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:39,529 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:39,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:39,732 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:39,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:39,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1911429897, now seen corresponding path program 10 times [2021-01-06 11:19:39,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:39,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895317898] [2021-01-06 11:19:39,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:40,005 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 25 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:40,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895317898] [2021-01-06 11:19:40,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156893145] [2021-01-06 11:19:40,006 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:40,061 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:19:40,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:19:40,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 11:19:40,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:40,383 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 36 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:40,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:19:40,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2021-01-06 11:19:40,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690892370] [2021-01-06 11:19:40,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 11:19:40,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:40,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 11:19:40,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2021-01-06 11:19:40,386 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand 25 states. [2021-01-06 11:19:41,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:41,468 INFO L93 Difference]: Finished difference Result 73 states and 75 transitions. [2021-01-06 11:19:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-01-06 11:19:41,469 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 43 [2021-01-06 11:19:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:41,470 INFO L225 Difference]: With dead ends: 73 [2021-01-06 11:19:41,470 INFO L226 Difference]: Without dead ends: 69 [2021-01-06 11:19:41,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2021-01-06 11:19:41,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-01-06 11:19:41,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 45. [2021-01-06 11:19:41,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-01-06 11:19:41,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-01-06 11:19:41,482 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 43 [2021-01-06 11:19:41,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:41,483 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-01-06 11:19:41,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 11:19:41,483 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-01-06 11:19:41,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-06 11:19:41,483 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:41,483 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:41,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:41,699 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:41,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:41,700 INFO L82 PathProgramCache]: Analyzing trace with hash 409975325, now seen corresponding path program 11 times [2021-01-06 11:19:41,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:41,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930175788] [2021-01-06 11:19:41,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 54 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:41,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930175788] [2021-01-06 11:19:41,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421893250] [2021-01-06 11:19:41,977 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:42,344 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-01-06 11:19:42,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:19:42,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 11:19:42,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:42,738 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 70 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:42,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:19:42,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2021-01-06 11:19:42,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875028] [2021-01-06 11:19:42,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 11:19:42,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:42,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 11:19:42,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2021-01-06 11:19:42,740 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 25 states. [2021-01-06 11:19:43,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:43,160 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2021-01-06 11:19:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-06 11:19:43,161 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 44 [2021-01-06 11:19:43,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:43,162 INFO L225 Difference]: With dead ends: 77 [2021-01-06 11:19:43,162 INFO L226 Difference]: Without dead ends: 50 [2021-01-06 11:19:43,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2021-01-06 11:19:43,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-01-06 11:19:43,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2021-01-06 11:19:43,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-01-06 11:19:43,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2021-01-06 11:19:43,175 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 44 [2021-01-06 11:19:43,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:43,175 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2021-01-06 11:19:43,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 11:19:43,175 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2021-01-06 11:19:43,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-06 11:19:43,176 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:43,176 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:43,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-01-06 11:19:43,391 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:43,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:43,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1967037797, now seen corresponding path program 12 times [2021-01-06 11:19:43,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:43,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132675452] [2021-01-06 11:19:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:44,106 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2021-01-06 11:19:44,275 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2021-01-06 11:19:44,467 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 42 [2021-01-06 11:19:44,662 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2021-01-06 11:19:44,873 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 46 [2021-01-06 11:19:45,075 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2021-01-06 11:19:45,288 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2021-01-06 11:19:45,539 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2021-01-06 11:19:45,797 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2021-01-06 11:19:45,998 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-06 11:19:46,246 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-01-06 11:19:46,451 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-06 11:19:49,218 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:49,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132675452] [2021-01-06 11:19:49,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275943768] [2021-01-06 11:19:49,219 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:49,398 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-01-06 11:19:49,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:19:49,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 63 conjunts are in the unsatisfiable core [2021-01-06 11:19:49,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:49,514 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-01-06 11:19:49,516 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:49,532 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:49,534 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:49,534 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2021-01-06 11:19:49,760 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-01-06 11:19:49,761 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:49,779 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:49,781 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:49,781 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2021-01-06 11:19:49,907 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:49,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:49,932 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-01-06 11:19:49,934 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:49,978 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:49,979 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 58 [2021-01-06 11:19:49,981 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:49,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:49,995 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-01-06 11:19:49,998 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:50,255 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2021-01-06 11:19:50,256 INFO L625 ElimStorePlain]: treesize reduction 24, result has 84.2 percent of original size [2021-01-06 11:19:50,259 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2021-01-06 11:19:50,260 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:140, output treesize:128 [2021-01-06 11:19:50,543 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-01-06 11:19:50,834 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-01-06 11:19:50,841 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:19:50,842 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:19:50,844 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:19:50,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:50,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:50,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:50,908 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2021-01-06 11:19:50,912 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:50,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:50,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:50,989 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:50,990 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 77 [2021-01-06 11:19:50,994 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:51,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,077 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:51,078 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 92 [2021-01-06 11:19:51,081 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:51,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,129 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2021-01-06 11:19:51,131 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:51,141 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:51,143 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:51,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,191 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2021-01-06 11:19:51,196 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:51,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,235 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2021-01-06 11:19:51,238 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:51,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:51,278 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2021-01-06 11:19:51,284 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:51,299 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:51,300 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:51,902 WARN L197 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2021-01-06 11:19:51,903 INFO L625 ElimStorePlain]: treesize reduction 272, result has 48.4 percent of original size [2021-01-06 11:19:51,906 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2021-01-06 11:19:51,906 INFO L244 ElimStorePlain]: Needed 10 recursive calls to eliminate 1 variables, input treesize:631, output treesize:255 [2021-01-06 11:19:52,338 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:19:52,770 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:19:52,778 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-01-06 11:19:52,779 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:19:52,781 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:19:52,783 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:19:52,784 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:19:52,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,875 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 68 [2021-01-06 11:19:52,878 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:52,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,953 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 64 [2021-01-06 11:19:52,956 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:52,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:52,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,032 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 68 [2021-01-06 11:19:53,036 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,049 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:53,050 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,131 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 68 [2021-01-06 11:19:53,134 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,203 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 70 [2021-01-06 11:19:53,207 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,275 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 68 [2021-01-06 11:19:53,279 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,293 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:53,295 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,391 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:53,391 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 94 [2021-01-06 11:19:53,395 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,408 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:53,409 INFO L547 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,420 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:53,421 INFO L547 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:53,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:53,460 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 57 [2021-01-06 11:19:53,465 INFO L547 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:54,466 WARN L197 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-01-06 11:19:54,468 INFO L625 ElimStorePlain]: treesize reduction 250, result has 66.2 percent of original size [2021-01-06 11:19:54,473 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2021-01-06 11:19:54,473 INFO L244 ElimStorePlain]: Needed 13 recursive calls to eliminate 1 variables, input treesize:1091, output treesize:489 [2021-01-06 11:19:55,190 WARN L197 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-01-06 11:19:55,891 WARN L197 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-01-06 11:19:55,901 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:55,902 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2021-01-06 11:19:55,904 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2021-01-06 11:19:55,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:55,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:55,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:55,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:55,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:55,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:55,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:55,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:55,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:55,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,022 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 89 [2021-01-06 11:19:56,025 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,039 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:56,040 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,123 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 91 [2021-01-06 11:19:56,126 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,273 INFO L244 Elim1Store]: Index analysis took 126 ms [2021-01-06 11:19:56,304 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 83 [2021-01-06 11:19:56,307 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,449 INFO L244 Elim1Store]: Index analysis took 122 ms [2021-01-06 11:19:56,481 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 89 [2021-01-06 11:19:56,484 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:56,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,550 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:56,638 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 78 [2021-01-06 11:19:56,643 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,769 INFO L244 Elim1Store]: Index analysis took 104 ms [2021-01-06 11:19:56,799 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 89 [2021-01-06 11:19:56,802 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,899 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 73 [2021-01-06 11:19:56,903 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,914 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:56,915 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:56,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,051 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 78 [2021-01-06 11:19:57,056 INFO L547 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:57,076 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:57,078 INFO L547 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:57,097 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:57,099 INFO L547 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:57,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,239 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 89 [2021-01-06 11:19:57,243 INFO L547 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:57,256 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:57,257 INFO L547 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:57,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,389 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 89 [2021-01-06 11:19:57,393 INFO L547 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:57,409 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:57,411 INFO L547 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:57,426 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:19:57,428 INFO L547 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:57,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,517 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:57,517 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 113 [2021-01-06 11:19:57,521 INFO L547 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:59,070 WARN L197 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2021-01-06 11:19:59,071 INFO L625 ElimStorePlain]: treesize reduction 404, result has 66.2 percent of original size [2021-01-06 11:19:59,075 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 8 xjuncts. [2021-01-06 11:19:59,075 INFO L244 ElimStorePlain]: Needed 19 recursive calls to eliminate 1 variables, input treesize:1951, output treesize:793 [2021-01-06 11:20:00,167 WARN L197 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-01-06 11:20:01,239 WARN L197 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-01-06 11:20:01,252 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2021-01-06 11:20:01,253 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:20:01,255 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:01,256 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:01,257 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:20:01,258 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:01,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:01,260 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:01,261 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:01,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,444 INFO L244 Elim1Store]: Index analysis took 150 ms [2021-01-06 11:20:01,476 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 110 [2021-01-06 11:20:01,479 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:01,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,604 INFO L244 Elim1Store]: Index analysis took 108 ms [2021-01-06 11:20:01,655 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:20:01,655 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 132 [2021-01-06 11:20:01,660 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:01,707 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:01,710 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:01,732 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:01,733 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:01,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,863 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 92 [2021-01-06 11:20:01,866 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:01,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:01,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,001 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 110 [2021-01-06 11:20:02,008 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:02,025 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:02,027 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:02,044 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:02,045 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:02,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,202 INFO L244 Elim1Store]: Index analysis took 134 ms [2021-01-06 11:20:02,236 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 94 [2021-01-06 11:20:02,241 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:02,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:20:02,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,410 INFO L244 Elim1Store]: Index analysis took 137 ms [2021-01-06 11:20:02,448 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 99 [2021-01-06 11:20:02,454 INFO L547 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:02,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,657 INFO L244 Elim1Store]: Index analysis took 178 ms [2021-01-06 11:20:02,698 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:20:02,698 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 117 [2021-01-06 11:20:02,703 INFO L547 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:02,724 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:02,725 INFO L547 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:02,753 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:02,755 INFO L547 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:02,776 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:02,778 INFO L547 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:02,807 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:02,809 INFO L547 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:02,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:02,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,094 INFO L244 Elim1Store]: Index analysis took 247 ms [2021-01-06 11:20:03,147 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 110 [2021-01-06 11:20:03,150 INFO L547 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:03,170 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:03,171 INFO L547 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:03,188 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:03,190 INFO L547 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:03,204 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:03,205 INFO L547 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:03,220 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:03,221 INFO L547 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:03,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,369 INFO L244 Elim1Store]: Index analysis took 126 ms [2021-01-06 11:20:03,396 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 110 [2021-01-06 11:20:03,399 INFO L547 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:03,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,594 INFO L244 Elim1Store]: Index analysis took 172 ms [2021-01-06 11:20:03,631 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 110 [2021-01-06 11:20:03,635 INFO L547 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:03,650 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:20:03,652 INFO L547 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:03,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:03,730 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 110 [2021-01-06 11:20:03,734 INFO L547 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:06,151 WARN L197 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2021-01-06 11:20:06,153 INFO L625 ElimStorePlain]: treesize reduction 395, result has 72.5 percent of original size [2021-01-06 11:20:06,157 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 9 xjuncts. [2021-01-06 11:20:06,157 INFO L244 ElimStorePlain]: Needed 25 recursive calls to eliminate 1 variables, input treesize:3093, output treesize:1043 [2021-01-06 11:20:07,812 WARN L197 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-01-06 11:20:07,825 INFO L639 QuantifierPusher]: Distributing 9 conjuncts over 2 disjuncts [2021-01-06 11:20:08,079 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-01-06 11:20:16,525 WARN L197 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 520 [2021-01-06 11:20:16,641 INFO L639 QuantifierPusher]: Distributing 9 conjuncts over 2 disjuncts [2021-01-06 11:20:23,445 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 519 DAG size of output: 339 [2021-01-06 11:20:28,974 WARN L197 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 341 [2021-01-06 11:20:31,514 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2021-01-06 11:20:35,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,370 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 85 [2021-01-06 11:20:35,374 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:35,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,516 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-01-06 11:20:35,545 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 182 [2021-01-06 11:20:35,548 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:35,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,706 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 151 [2021-01-06 11:20:35,710 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:35,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:35,918 INFO L244 Elim1Store]: Index analysis took 172 ms [2021-01-06 11:20:35,990 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:20:35,990 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 272 [2021-01-06 11:20:35,995 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:36,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:36,142 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 304 [2021-01-06 11:20:36,147 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:39,876 WARN L197 SmtUtils]: Spent 3.73 s on a formula simplification. DAG size of input: 381 DAG size of output: 358 [2021-01-06 11:20:39,879 INFO L625 ElimStorePlain]: treesize reduction 156, result has 91.7 percent of original size [2021-01-06 11:20:41,038 INFO L547 ElimStorePlain]: Start of recursive call 1: 26 dim-0 vars, 1 dim-2 vars, End of recursive call: 26 dim-0 vars, and 5 xjuncts. [2021-01-06 11:20:41,039 INFO L244 ElimStorePlain]: Needed 6 recursive calls to eliminate 27 variables, input treesize:1817, output treesize:1729 [2021-01-06 11:20:45,576 WARN L197 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2021-01-06 11:20:51,629 WARN L197 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2021-01-06 11:20:53,977 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2021-01-06 11:20:57,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:20:57,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,534 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:20:57,643 INFO L244 Elim1Store]: Index analysis took 172 ms [2021-01-06 11:20:57,677 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:20:57,678 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 14 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 283 [2021-01-06 11:20:57,683 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:57,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:20:57,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,851 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:20:57,871 INFO L244 Elim1Store]: Index analysis took 155 ms [2021-01-06 11:20:57,875 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 187 [2021-01-06 11:20:57,880 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:57,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:20:57,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:57,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:20:58,052 INFO L244 Elim1Store]: Index analysis took 141 ms [2021-01-06 11:20:58,055 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 156 [2021-01-06 11:20:58,060 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:58,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,166 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:20:58,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:20:58,385 INFO L244 Elim1Store]: Index analysis took 262 ms [2021-01-06 11:20:58,388 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 311 [2021-01-06 11:20:58,392 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:58,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,457 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:20:58,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:20:58,463 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-01-06 11:20:58,465 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:01,560 WARN L197 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 374 DAG size of output: 358 [2021-01-06 11:21:01,563 INFO L625 ElimStorePlain]: treesize reduction 124, result has 93.3 percent of original size [2021-01-06 11:21:02,730 INFO L547 ElimStorePlain]: Start of recursive call 1: 26 dim-0 vars, 1 dim-2 vars, End of recursive call: 25 dim-0 vars, and 5 xjuncts. [2021-01-06 11:21:02,731 INFO L244 ElimStorePlain]: Needed 6 recursive calls to eliminate 27 variables, input treesize:1874, output treesize:1843 [2021-01-06 11:21:07,074 WARN L197 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2021-01-06 11:21:12,351 WARN L197 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2021-01-06 11:21:14,654 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: variable got div captured [2021-01-06 11:21:14,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:21:14,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2021-01-06 11:21:14,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144081994] [2021-01-06 11:21:14,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-01-06 11:21:14,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:21:14,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-01-06 11:21:14,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=2654, Unknown=0, NotChecked=0, Total=2970 [2021-01-06 11:21:14,656 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 35 states. [2021-01-06 11:21:16,212 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2021-01-06 11:21:16,823 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-01-06 11:21:18,307 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2021-01-06 11:21:18,968 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 78 [2021-01-06 11:21:19,759 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-01-06 11:21:20,155 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2021-01-06 11:21:20,446 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2021-01-06 11:21:20,702 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2021-01-06 11:21:22,785 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 81 [2021-01-06 11:21:23,283 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 84 [2021-01-06 11:21:23,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:21:23,582 INFO L93 Difference]: Finished difference Result 83 states and 85 transitions. [2021-01-06 11:21:23,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-06 11:21:23,584 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 46 [2021-01-06 11:21:23,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:21:23,585 INFO L225 Difference]: With dead ends: 83 [2021-01-06 11:21:23,585 INFO L226 Difference]: Without dead ends: 79 [2021-01-06 11:21:23,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2077 ImplicationChecksByTransitivity, 40.9s TimeCoverageRelationStatistics Valid=864, Invalid=7146, Unknown=0, NotChecked=0, Total=8010 [2021-01-06 11:21:23,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-01-06 11:21:23,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 55. [2021-01-06 11:21:23,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-01-06 11:21:23,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2021-01-06 11:21:23,606 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 46 [2021-01-06 11:21:23,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:21:23,606 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2021-01-06 11:21:23,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2021-01-06 11:21:23,606 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2021-01-06 11:21:23,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-06 11:21:23,607 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:21:23,607 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:21:23,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-01-06 11:21:23,819 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:21:23,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:21:23,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1354046567, now seen corresponding path program 13 times [2021-01-06 11:21:23,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:21:23,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922994830] [2021-01-06 11:21:23,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:21:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:21:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 36 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:21:24,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922994830] [2021-01-06 11:21:24,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733607480] [2021-01-06 11:21:24,308 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:21:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:21:24,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 11:21:24,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:21:24,889 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 49 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:21:24,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:21:24,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2021-01-06 11:21:24,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335080477] [2021-01-06 11:21:24,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-01-06 11:21:24,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:21:24,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-01-06 11:21:24,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2021-01-06 11:21:24,892 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 28 states. [2021-01-06 11:21:26,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:21:26,737 INFO L93 Difference]: Finished difference Result 81 states and 83 transitions. [2021-01-06 11:21:26,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-06 11:21:26,738 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 48 [2021-01-06 11:21:26,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:21:26,739 INFO L225 Difference]: With dead ends: 81 [2021-01-06 11:21:26,739 INFO L226 Difference]: Without dead ends: 77 [2021-01-06 11:21:26,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=429, Invalid=1463, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 11:21:26,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-01-06 11:21:26,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 50. [2021-01-06 11:21:26,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2021-01-06 11:21:26,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-01-06 11:21:26,760 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 48 [2021-01-06 11:21:26,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:21:26,760 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-01-06 11:21:26,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2021-01-06 11:21:26,760 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-01-06 11:21:26,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-06 11:21:26,761 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:21:26,762 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:21:26,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-01-06 11:21:26,976 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:21:26,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:21:26,977 INFO L82 PathProgramCache]: Analyzing trace with hash 2107054537, now seen corresponding path program 14 times [2021-01-06 11:21:26,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:21:26,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283042117] [2021-01-06 11:21:26,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:21:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:21:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 73 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:21:27,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283042117] [2021-01-06 11:21:27,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397570408] [2021-01-06 11:21:27,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:21:27,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:21:27,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:21:27,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 11:21:27,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:21:28,138 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 92 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:21:28,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:21:28,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2021-01-06 11:21:28,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319370859] [2021-01-06 11:21:28,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-01-06 11:21:28,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:21:28,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-01-06 11:21:28,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2021-01-06 11:21:28,141 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 28 states. [2021-01-06 11:21:28,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:21:28,868 INFO L93 Difference]: Finished difference Result 85 states and 87 transitions. [2021-01-06 11:21:28,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-06 11:21:28,870 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 49 [2021-01-06 11:21:28,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:21:28,871 INFO L225 Difference]: With dead ends: 85 [2021-01-06 11:21:28,871 INFO L226 Difference]: Without dead ends: 55 [2021-01-06 11:21:28,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2021-01-06 11:21:28,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-01-06 11:21:28,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2021-01-06 11:21:28,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-01-06 11:21:28,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2021-01-06 11:21:28,883 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 49 [2021-01-06 11:21:28,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:21:28,883 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2021-01-06 11:21:28,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2021-01-06 11:21:28,883 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2021-01-06 11:21:28,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-06 11:21:28,884 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:21:28,884 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:21:29,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:21:29,087 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:21:29,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:21:29,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1527844875, now seen corresponding path program 15 times [2021-01-06 11:21:29,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:21:29,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120646931] [2021-01-06 11:21:29,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:21:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:21:29,757 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 29 [2021-01-06 11:21:30,025 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2021-01-06 11:21:30,525 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 38 [2021-01-06 11:21:30,715 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2021-01-06 11:21:31,004 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2021-01-06 11:21:31,237 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2021-01-06 11:21:31,429 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-01-06 11:21:31,623 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-01-06 11:21:32,142 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-01-06 11:21:32,339 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-06 11:21:32,717 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2021-01-06 11:21:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 15 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:21:35,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120646931] [2021-01-06 11:21:35,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715797010] [2021-01-06 11:21:35,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:21:35,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-01-06 11:21:35,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:21:35,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 69 conjunts are in the unsatisfiable core [2021-01-06 11:21:35,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:21:35,573 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-01-06 11:21:35,576 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:35,594 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:35,595 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:35,596 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2021-01-06 11:21:35,866 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-01-06 11:21:35,868 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:35,895 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:35,897 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:35,897 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2021-01-06 11:21:36,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:36,163 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2021-01-06 11:21:36,167 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:36,197 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:36,199 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:36,199 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2021-01-06 11:21:36,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:36,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:36,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:36,509 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2021-01-06 11:21:36,511 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:36,552 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:36,554 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:36,554 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:52 [2021-01-06 11:21:36,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:36,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:36,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:36,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:36,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:36,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:36,940 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 64 [2021-01-06 11:21:36,942 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:36,986 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:36,988 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:36,988 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:72, output treesize:68 [2021-01-06 11:21:37,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,432 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 83 [2021-01-06 11:21:37,436 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:37,497 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:37,498 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:37,499 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:88, output treesize:84 [2021-01-06 11:21:37,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:37,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,027 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 102 [2021-01-06 11:21:38,032 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:38,105 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:38,107 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:38,107 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:104, output treesize:100 [2021-01-06 11:21:38,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,708 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 119 [2021-01-06 11:21:38,711 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:38,877 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-01-06 11:21:38,879 INFO L625 ElimStorePlain]: treesize reduction 3, result has 97.4 percent of original size [2021-01-06 11:21:38,881 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:38,881 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:121, output treesize:114 [2021-01-06 11:21:39,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,922 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2021-01-06 11:21:39,925 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:39,993 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:39,995 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:39,996 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:87 [2021-01-06 11:21:40,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,452 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:40,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,482 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 99 [2021-01-06 11:21:40,485 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:40,558 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:40,561 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:40,561 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:112, output treesize:89 [2021-01-06 11:21:41,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,065 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 97 [2021-01-06 11:21:41,070 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:41,136 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:41,138 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:41,138 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:92 [2021-01-06 11:21:41,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:41,569 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-01-06 11:21:41,570 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:41,571 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 7 case distinctions, treesize of input 104 treesize of output 208 [2021-01-06 11:21:41,577 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:41,759 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 54 [2021-01-06 11:21:41,761 INFO L625 ElimStorePlain]: treesize reduction 191, result has 34.6 percent of original size [2021-01-06 11:21:41,763 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:41,763 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:101 [2021-01-06 11:21:42,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,853 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2021-01-06 11:21:42,855 INFO L348 Elim1Store]: treesize reduction 17, result has 92.3 percent of original size [2021-01-06 11:21:42,855 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 114 treesize of output 326 [2021-01-06 11:21:42,867 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:43,154 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 57 [2021-01-06 11:21:43,156 INFO L625 ElimStorePlain]: treesize reduction 295, result has 26.1 percent of original size [2021-01-06 11:21:43,158 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:43,158 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:127, output treesize:104 [2021-01-06 11:21:43,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:43,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,372 WARN L197 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 117 [2021-01-06 11:21:44,373 INFO L348 Elim1Store]: treesize reduction 52, result has 85.6 percent of original size [2021-01-06 11:21:44,373 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 22 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 117 treesize of output 443 [2021-01-06 11:21:44,384 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:44,690 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 60 [2021-01-06 11:21:44,691 INFO L625 ElimStorePlain]: treesize reduction 611, result has 15.7 percent of original size [2021-01-06 11:21:44,696 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:44,696 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:114 [2021-01-06 11:21:45,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:46,326 WARN L197 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 148 [2021-01-06 11:21:46,328 INFO L348 Elim1Store]: treesize reduction 105, result has 79.8 percent of original size [2021-01-06 11:21:46,328 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 22 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 34 case distinctions, treesize of input 127 treesize of output 561 [2021-01-06 11:21:46,343 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:46,708 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 63 [2021-01-06 11:21:46,710 INFO L625 ElimStorePlain]: treesize reduction 789, result has 13.6 percent of original size [2021-01-06 11:21:46,712 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:46,712 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:140, output treesize:124 [2021-01-06 11:21:47,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,955 INFO L244 Elim1Store]: Index analysis took 139 ms [2021-01-06 11:21:48,340 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-01-06 11:21:48,341 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:48,342 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 42 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 25 case distinctions, treesize of input 117 treesize of output 427 [2021-01-06 11:21:48,355 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:48,689 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 57 [2021-01-06 11:21:48,690 INFO L625 ElimStorePlain]: treesize reduction 641, result has 15.1 percent of original size [2021-01-06 11:21:48,692 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-06 11:21:48,692 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:130, output treesize:114 [2021-01-06 11:21:49,595 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:21:49,601 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:21:49,603 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:21:49,604 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:21:49,607 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:21:49,608 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:21:49,608 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:21:49,610 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:21:49,611 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:21:49,612 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:21:49,613 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-06 11:21:49,821 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:21:49,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 11:21:49,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 39] total 74 [2021-01-06 11:21:49,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258568269] [2021-01-06 11:21:49,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 74 states [2021-01-06 11:21:49,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:21:49,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-01-06 11:21:49,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=575, Invalid=4827, Unknown=0, NotChecked=0, Total=5402 [2021-01-06 11:21:49,825 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 74 states. [2021-01-06 11:21:53,087 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 47 [2021-01-06 11:21:53,492 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2021-01-06 11:21:54,026 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 56 [2021-01-06 11:21:54,760 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-01-06 11:21:55,443 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2021-01-06 11:21:55,833 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2021-01-06 11:21:56,213 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 56 [2021-01-06 11:21:56,465 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-01-06 11:21:56,828 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2021-01-06 11:21:57,126 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-01-06 11:21:57,516 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 54 [2021-01-06 11:21:58,163 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-01-06 11:22:00,833 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2021-01-06 11:22:01,533 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2021-01-06 11:22:04,601 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-01-06 11:22:05,365 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-01-06 11:22:06,020 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-01-06 11:22:06,868 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 92 [2021-01-06 11:22:07,727 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 86 [2021-01-06 11:22:09,001 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 88 [2021-01-06 11:22:09,423 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-01-06 11:22:10,107 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 54 [2021-01-06 11:22:11,075 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 56 [2021-01-06 11:22:11,369 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2021-01-06 11:22:11,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:22:11,518 INFO L93 Difference]: Finished difference Result 103 states and 107 transitions. [2021-01-06 11:22:11,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-01-06 11:22:11,520 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 51 [2021-01-06 11:22:11,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:22:11,522 INFO L225 Difference]: With dead ends: 103 [2021-01-06 11:22:11,522 INFO L226 Difference]: Without dead ends: 95 [2021-01-06 11:22:11,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4421 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=1675, Invalid=12367, Unknown=0, NotChecked=0, Total=14042 [2021-01-06 11:22:11,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-01-06 11:22:11,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 63. [2021-01-06 11:22:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-01-06 11:22:11,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2021-01-06 11:22:11,540 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 51 [2021-01-06 11:22:11,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:22:11,541 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2021-01-06 11:22:11,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 74 states. [2021-01-06 11:22:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2021-01-06 11:22:11,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-06 11:22:11,541 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:22:11,542 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:22:11,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-06 11:22:11,743 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:22:11,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:22:11,744 INFO L82 PathProgramCache]: Analyzing trace with hash -995174057, now seen corresponding path program 16 times [2021-01-06 11:22:11,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:22:11,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089509496] [2021-01-06 11:22:11,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:22:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:22:12,370 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2021-01-06 11:22:12,634 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 29 [2021-01-06 11:22:12,845 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2021-01-06 11:22:13,056 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 34 [2021-01-06 11:22:13,246 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 32 [2021-01-06 11:22:13,411 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 33 [2021-01-06 11:22:13,616 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2021-01-06 11:22:13,805 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 32 [2021-01-06 11:22:14,075 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 47 [2021-01-06 11:22:14,339 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 44 [2021-01-06 11:22:14,608 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2021-01-06 11:22:14,850 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-01-06 11:22:15,284 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-06 11:22:15,889 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-06 11:22:16,114 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2021-01-06 11:22:16,516 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2021-01-06 11:22:16,971 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2021-01-06 11:22:17,944 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2021-01-06 11:22:18,217 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2021-01-06 11:22:20,059 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 9 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:22:20,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089509496] [2021-01-06 11:22:20,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649615399] [2021-01-06 11:22:20,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:22:20,124 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:22:20,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:22:20,126 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 65 conjunts are in the unsatisfiable core [2021-01-06 11:22:20,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:22:20,150 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-01-06 11:22:20,153 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:20,164 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:20,166 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:20,166 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:8 [2021-01-06 11:22:20,444 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-01-06 11:22:20,447 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:20,465 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:20,467 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:20,467 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2021-01-06 11:22:20,827 INFO L348 Elim1Store]: treesize reduction 42, result has 22.2 percent of original size [2021-01-06 11:22:20,828 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2021-01-06 11:22:20,830 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:20,855 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:20,856 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:20,857 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2021-01-06 11:22:21,364 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2021-01-06 11:22:21,366 INFO L348 Elim1Store]: treesize reduction 12, result has 87.4 percent of original size [2021-01-06 11:22:21,366 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 102 [2021-01-06 11:22:21,370 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:21,459 INFO L625 ElimStorePlain]: treesize reduction 48, result has 44.8 percent of original size [2021-01-06 11:22:21,460 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:21,461 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:39 [2021-01-06 11:22:22,088 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2021-01-06 11:22:22,090 INFO L348 Elim1Store]: treesize reduction 36, result has 77.5 percent of original size [2021-01-06 11:22:22,090 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 146 [2021-01-06 11:22:22,094 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:22,246 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 31 [2021-01-06 11:22:22,247 INFO L625 ElimStorePlain]: treesize reduction 72, result has 40.0 percent of original size [2021-01-06 11:22:22,249 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:22,249 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2021-01-06 11:22:23,003 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 45 [2021-01-06 11:22:23,004 INFO L348 Elim1Store]: treesize reduction 122, result has 52.7 percent of original size [2021-01-06 11:22:23,005 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 61 treesize of output 165 [2021-01-06 11:22:23,009 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:23,126 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 37 [2021-01-06 11:22:23,127 INFO L625 ElimStorePlain]: treesize reduction 72, result has 47.1 percent of original size [2021-01-06 11:22:23,128 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:23,129 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:64 [2021-01-06 11:22:24,135 WARN L197 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 60 [2021-01-06 11:22:24,136 INFO L348 Elim1Store]: treesize reduction 120, result has 63.2 percent of original size [2021-01-06 11:22:24,137 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 63 treesize of output 234 [2021-01-06 11:22:24,142 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:24,352 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2021-01-06 11:22:24,354 INFO L625 ElimStorePlain]: treesize reduction 120, result has 35.5 percent of original size [2021-01-06 11:22:24,355 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:24,356 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:66 [2021-01-06 11:22:25,490 WARN L197 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 70 [2021-01-06 11:22:25,492 INFO L348 Elim1Store]: treesize reduction 180, result has 57.8 percent of original size [2021-01-06 11:22:25,493 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 72 treesize of output 278 [2021-01-06 11:22:25,497 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:25,735 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 45 [2021-01-06 11:22:25,737 INFO L625 ElimStorePlain]: treesize reduction 144, result has 34.2 percent of original size [2021-01-06 11:22:25,738 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:25,739 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-01-06 11:22:26,567 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 40 [2021-01-06 11:22:26,569 INFO L348 Elim1Store]: treesize reduction 434, result has 12.9 percent of original size [2021-01-06 11:22:26,569 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 77 treesize of output 94 [2021-01-06 11:22:26,573 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:26,628 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:26,629 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:26,630 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80