/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/nsqm.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 11:18:59,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 11:18:59,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 11:18:59,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 11:18:59,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 11:18:59,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 11:18:59,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 11:18:59,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 11:18:59,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 11:18:59,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 11:18:59,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 11:18:59,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 11:18:59,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 11:18:59,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 11:18:59,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 11:18:59,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 11:18:59,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 11:18:59,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 11:18:59,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 11:18:59,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 11:18:59,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 11:18:59,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 11:18:59,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 11:18:59,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 11:18:59,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 11:18:59,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 11:18:59,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 11:18:59,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 11:18:59,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 11:18:59,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 11:18:59,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 11:18:59,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 11:18:59,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 11:18:59,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 11:18:59,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 11:18:59,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 11:18:59,561 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 11:18:59,589 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 11:18:59,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 11:18:59,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 11:18:59,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 11:18:59,593 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 11:18:59,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 11:18:59,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 11:18:59,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 11:18:59,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 11:18:59,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 11:18:59,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 11:18:59,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 11:18:59,598 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 11:18:59,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 11:18:59,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 11:18:59,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 11:18:59,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 11:18:59,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 11:18:59,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 11:18:59,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 11:18:59,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 11:18:59,600 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 11:18:59,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 11:18:59,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 11:18:59,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 11:18:59,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 11:19:00,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 11:19:00,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 11:19:00,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 11:19:00,058 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 11:19:00,058 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 11:19:00,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/nsqm.c [2021-01-06 11:19:00,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/abd4dafa9/9377c0807a0748af85561c02051aefaa/FLAG93786082f [2021-01-06 11:19:00,929 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 11:19:00,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/nsqm.c [2021-01-06 11:19:00,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/abd4dafa9/9377c0807a0748af85561c02051aefaa/FLAG93786082f [2021-01-06 11:19:01,311 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/abd4dafa9/9377c0807a0748af85561c02051aefaa [2021-01-06 11:19:01,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 11:19:01,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 11:19:01,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 11:19:01,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 11:19:01,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 11:19:01,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:19:01" (1/1) ... [2021-01-06 11:19:01,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d631815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01, skipping insertion in model container [2021-01-06 11:19:01,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:19:01" (1/1) ... [2021-01-06 11:19:01,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 11:19:01,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 11:19:01,563 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/nsqm.c[587,600] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],StructAccessExpression[IdentifierExpression[~b~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],StructAccessExpression[IdentifierExpression[~a~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~b~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],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[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] [2021-01-06 11:19:01,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:19:01,602 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 11:19:01,620 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/nsqm.c[587,600] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],StructAccessExpression[IdentifierExpression[~b~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],StructAccessExpression[IdentifierExpression[~a~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~b~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],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[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] [2021-01-06 11:19:01,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:19:01,651 INFO L208 MainTranslator]: Completed translation [2021-01-06 11:19:01,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01 WrapperNode [2021-01-06 11:19:01,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 11:19:01,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 11:19:01,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 11:19:01,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 11:19:01,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01" (1/1) ... [2021-01-06 11:19:01,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01" (1/1) ... [2021-01-06 11:19:01,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 11:19:01,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 11:19:01,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 11:19:01,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 11:19:01,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01" (1/1) ... [2021-01-06 11:19:01,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01" (1/1) ... [2021-01-06 11:19:01,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01" (1/1) ... [2021-01-06 11:19:01,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01" (1/1) ... [2021-01-06 11:19:01,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01" (1/1) ... [2021-01-06 11:19:01,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01" (1/1) ... [2021-01-06 11:19:01,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01" (1/1) ... [2021-01-06 11:19:01,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 11:19:01,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 11:19:01,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 11:19:01,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 11:19:01,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01" (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 11:19:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 11:19:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 11:19:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 11:19:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-06 11:19:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 11:19:01,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 11:19:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 11:19:02,233 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 11:19:02,233 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-01-06 11:19:02,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:19:02 BoogieIcfgContainer [2021-01-06 11:19:02,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 11:19:02,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 11:19:02,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 11:19:02,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 11:19:02,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:19:01" (1/3) ... [2021-01-06 11:19:02,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764931a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:19:02, skipping insertion in model container [2021-01-06 11:19:02,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:19:01" (2/3) ... [2021-01-06 11:19:02,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764931a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:19:02, skipping insertion in model container [2021-01-06 11:19:02,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:19:02" (3/3) ... [2021-01-06 11:19:02,247 INFO L111 eAbstractionObserver]: Analyzing ICFG nsqm.c [2021-01-06 11:19:02,255 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 11:19:02,267 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 11:19:02,350 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 11:19:02,414 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 11:19:02,414 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 11:19:02,414 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 11:19:02,414 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 11:19:02,415 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 11:19:02,415 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 11:19:02,415 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 11:19:02,415 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 11:19:02,434 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2021-01-06 11:19:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 11:19:02,440 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:02,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:02,442 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:02,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:02,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2021-01-06 11:19:02,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:02,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245864472] [2021-01-06 11:19:02,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:02,647 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 11:19:02,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245864472] [2021-01-06 11:19:02,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:19:02,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 11:19:02,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112286423] [2021-01-06 11:19:02,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 11:19:02,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:02,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 11:19:02,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 11:19:02,676 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2021-01-06 11:19:02,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:02,696 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2021-01-06 11:19:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 11:19:02,698 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2021-01-06 11:19:02,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:02,709 INFO L225 Difference]: With dead ends: 38 [2021-01-06 11:19:02,709 INFO L226 Difference]: Without dead ends: 17 [2021-01-06 11:19:02,712 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 11:19:02,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-01-06 11:19:02,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-01-06 11:19:02,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-01-06 11:19:02,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-01-06 11:19:02,755 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2021-01-06 11:19:02,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:02,756 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-01-06 11:19:02,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 11:19:02,756 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-01-06 11:19:02,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 11:19:02,757 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:02,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:02,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 11:19:02,758 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:02,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:02,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2021-01-06 11:19:02,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:02,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855822662] [2021-01-06 11:19:02,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:02,799 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:19:02,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198447827] [2021-01-06 11:19:02,801 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 11:19:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:03,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 11:19:03,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:03,156 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:03,157 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 1 case distinctions, treesize of input 29 treesize of output 43 [2021-01-06 11:19:03,162 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:03,197 INFO L625 ElimStorePlain]: treesize reduction 18, result has 63.3 percent of original size [2021-01-06 11:19:03,207 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:03,208 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:16 [2021-01-06 11:19:03,365 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 11:19:03,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855822662] [2021-01-06 11:19:03,366 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:19:03,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198447827] [2021-01-06 11:19:03,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:19:03,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 11:19:03,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173268059] [2021-01-06 11:19:03,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 11:19:03,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:03,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 11:19:03,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-01-06 11:19:03,372 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 8 states. [2021-01-06 11:19:03,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:03,735 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2021-01-06 11:19:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 11:19:03,736 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2021-01-06 11:19:03,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:03,737 INFO L225 Difference]: With dead ends: 34 [2021-01-06 11:19:03,737 INFO L226 Difference]: Without dead ends: 32 [2021-01-06 11:19:03,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2021-01-06 11:19:03,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-01-06 11:19:03,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-01-06 11:19:03,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-01-06 11:19:03,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-01-06 11:19:03,748 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-01-06 11:19:03,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:03,748 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-01-06 11:19:03,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 11:19:03,749 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-01-06 11:19:03,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 11:19:03,750 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:03,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:03,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-01-06 11:19:03,964 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:03,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:03,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1755224028, now seen corresponding path program 1 times [2021-01-06 11:19:03,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:03,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68671155] [2021-01-06 11:19:03,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:03,991 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:19:03,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016316132] [2021-01-06 11:19:03,992 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 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 11:19:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:04,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-06 11:19:04,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:04,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68671155] [2021-01-06 11:19:04,107 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:19:04,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016316132] [2021-01-06 11:19:04,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:19:04,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 11:19:04,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662629340] [2021-01-06 11:19:04,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 11:19:04,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:04,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 11:19:04,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 11:19:04,111 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 5 states. [2021-01-06 11:19:04,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:04,203 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2021-01-06 11:19:04,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 11:19:04,204 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-01-06 11:19:04,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:04,205 INFO L225 Difference]: With dead ends: 49 [2021-01-06 11:19:04,205 INFO L226 Difference]: Without dead ends: 40 [2021-01-06 11:19:04,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 11:19:04,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-01-06 11:19:04,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2021-01-06 11:19:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-01-06 11:19:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-01-06 11:19:04,213 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2021-01-06 11:19:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:04,214 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-01-06 11:19:04,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 11:19:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-01-06 11:19:04,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 11:19:04,215 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:04,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:04,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:04,430 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:04,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:04,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1842440164, now seen corresponding path program 1 times [2021-01-06 11:19:04,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:04,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558101504] [2021-01-06 11:19:04,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:04,459 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:19:04,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [388207941] [2021-01-06 11:19:04,460 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 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 11:19:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:04,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-06 11:19:04,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:04,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558101504] [2021-01-06 11:19:04,579 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:19:04,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388207941] [2021-01-06 11:19:04,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:19:04,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-01-06 11:19:04,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998054177] [2021-01-06 11:19:04,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 11:19:04,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:04,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 11:19:04,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 11:19:04,582 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 5 states. [2021-01-06 11:19:04,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:04,669 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2021-01-06 11:19:04,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 11:19:04,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-01-06 11:19:04,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:04,671 INFO L225 Difference]: With dead ends: 44 [2021-01-06 11:19:04,671 INFO L226 Difference]: Without dead ends: 37 [2021-01-06 11:19:04,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 11:19:04,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-01-06 11:19:04,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 24. [2021-01-06 11:19:04,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-01-06 11:19:04,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-01-06 11:19:04,678 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 14 [2021-01-06 11:19:04,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:04,678 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-01-06 11:19:04,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 11:19:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-01-06 11:19:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 11:19:04,679 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:04,679 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:04,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:04,893 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:04,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:04,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1667884396, now seen corresponding path program 1 times [2021-01-06 11:19:04,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:04,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591532821] [2021-01-06 11:19:04,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:04,922 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:19:04,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [257241886] [2021-01-06 11:19:04,923 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 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 11:19:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:04,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-06 11:19:04,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:05,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591532821] [2021-01-06 11:19:05,042 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:19:05,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257241886] [2021-01-06 11:19:05,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:19:05,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 11:19:05,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358716406] [2021-01-06 11:19:05,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 11:19:05,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:05,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 11:19:05,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 11:19:05,045 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 6 states. [2021-01-06 11:19:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:05,133 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2021-01-06 11:19:05,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 11:19:05,134 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-01-06 11:19:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:05,135 INFO L225 Difference]: With dead ends: 41 [2021-01-06 11:19:05,135 INFO L226 Difference]: Without dead ends: 27 [2021-01-06 11:19:05,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-01-06 11:19:05,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-01-06 11:19:05,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2021-01-06 11:19:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-01-06 11:19:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-01-06 11:19:05,140 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2021-01-06 11:19:05,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:05,140 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-01-06 11:19:05,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 11:19:05,141 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-01-06 11:19:05,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 11:19:05,141 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:05,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:05,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:05,356 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:05,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:05,358 INFO L82 PathProgramCache]: Analyzing trace with hash 586911962, now seen corresponding path program 1 times [2021-01-06 11:19:05,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:05,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857041932] [2021-01-06 11:19:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:05,378 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:19:05,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163407749] [2021-01-06 11:19:05,378 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 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 11:19:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:05,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 24 conjunts are in the unsatisfiable core [2021-01-06 11:19:05,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:05,509 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 11:19:05,515 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:05,528 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:05,584 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 29 treesize of output 17 [2021-01-06 11:19:05,586 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:05,595 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:05,596 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:05,596 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:24 [2021-01-06 11:19:05,689 INFO L348 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2021-01-06 11:19:05,689 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 3 case distinctions, treesize of input 43 treesize of output 74 [2021-01-06 11:19:05,699 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:05,738 INFO L625 ElimStorePlain]: treesize reduction 22, result has 70.3 percent of original size [2021-01-06 11:19:05,741 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:05,745 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 11:19:05,746 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:52 [2021-01-06 11:19:05,748 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:05,800 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:05,845 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:05,901 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:06,021 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:06,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:06,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:06,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:06,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:06,139 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:06,139 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 98 [2021-01-06 11:19:06,146 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:06,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:06,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:06,247 INFO L348 Elim1Store]: treesize reduction 17, result has 83.7 percent of original size [2021-01-06 11:19:06,248 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 175 [2021-01-06 11:19:06,257 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:06,429 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 47 [2021-01-06 11:19:06,430 INFO L625 ElimStorePlain]: treesize reduction 239, result has 38.4 percent of original size [2021-01-06 11:19:06,449 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2021-01-06 11:19:06,449 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:157, output treesize:149 [2021-01-06 11:19:11,558 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 68 [2021-01-06 11:19:15,235 WARN L197 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 71 [2021-01-06 11:19:15,256 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-01-06 11:19:15,257 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:15,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857041932] [2021-01-06 11:19:15,292 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:19:15,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163407749] [2021-01-06 11:19:15,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:19:15,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-01-06 11:19:15,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033676012] [2021-01-06 11:19:15,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 11:19:15,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:15,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 11:19:15,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=64, Unknown=3, NotChecked=0, Total=90 [2021-01-06 11:19:15,295 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 10 states. [2021-01-06 11:19:25,836 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-01-06 11:19:35,637 WARN L197 SmtUtils]: Spent 9.74 s on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-06 11:19:38,423 WARN L197 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2021-01-06 11:19:41,919 WARN L197 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 105 DAG size of output: 88 [2021-01-06 11:19:48,108 WARN L197 SmtUtils]: Spent 4.44 s on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-01-06 11:19:52,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:52,212 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2021-01-06 11:19:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 11:19:52,214 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2021-01-06 11:19:52,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:52,215 INFO L225 Difference]: With dead ends: 39 [2021-01-06 11:19:52,216 INFO L226 Difference]: Without dead ends: 37 [2021-01-06 11:19:52,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 32.4s TimeCoverageRelationStatistics Valid=89, Invalid=213, Unknown=4, NotChecked=0, Total=306 [2021-01-06 11:19:52,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-01-06 11:19:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 28. [2021-01-06 11:19:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-01-06 11:19:52,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-01-06 11:19:52,226 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2021-01-06 11:19:52,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:52,226 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-01-06 11:19:52,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 11:19:52,226 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-01-06 11:19:52,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 11:19:52,227 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:52,227 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:52,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-06 11:19:52,429 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:52,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:52,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1174519208, now seen corresponding path program 2 times [2021-01-06 11:19:52,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:52,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239760442] [2021-01-06 11:19:52,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:52,463 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:19:52,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145238723] [2021-01-06 11:19:52,465 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 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 11:19:52,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:19:52,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:19:52,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-06 11:19:52,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:52,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239760442] [2021-01-06 11:19:52,658 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:19:52,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145238723] [2021-01-06 11:19:52,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:19:52,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-01-06 11:19:52,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241432160] [2021-01-06 11:19:52,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 11:19:52,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:52,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 11:19:52,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-06 11:19:52,661 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2021-01-06 11:19:52,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:52,882 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2021-01-06 11:19:52,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 11:19:52,884 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2021-01-06 11:19:52,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:52,885 INFO L225 Difference]: With dead ends: 61 [2021-01-06 11:19:52,885 INFO L226 Difference]: Without dead ends: 54 [2021-01-06 11:19:52,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-01-06 11:19:52,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-01-06 11:19:52,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 30. [2021-01-06 11:19:52,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-01-06 11:19:52,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2021-01-06 11:19:52,896 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 18 [2021-01-06 11:19:52,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:52,896 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2021-01-06 11:19:52,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 11:19:52,897 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2021-01-06 11:19:52,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-06 11:19:52,897 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:52,898 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:53,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:53,114 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:53,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:53,115 INFO L82 PathProgramCache]: Analyzing trace with hash 798963152, now seen corresponding path program 1 times [2021-01-06 11:19:53,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:53,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098798895] [2021-01-06 11:19:53,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:53,154 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:19:53,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770220226] [2021-01-06 11:19:53,155 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 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 11:19:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:19:53,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 32 conjunts are in the unsatisfiable core [2021-01-06 11:19:53,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:53,287 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 11:19:53,290 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,306 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:53,315 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 29 treesize of output 17 [2021-01-06 11:19:53,316 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,334 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:53,336 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,337 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:27 [2021-01-06 11:19:53,479 INFO L348 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2021-01-06 11:19:53,481 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 3 case distinctions, treesize of input 43 treesize of output 74 [2021-01-06 11:19:53,486 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,553 INFO L625 ElimStorePlain]: treesize reduction 31, result has 61.3 percent of original size [2021-01-06 11:19:53,556 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 11:19:53,556 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:53, output treesize:49 [2021-01-06 11:19:53,787 INFO L348 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-01-06 11:19:53,788 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 4 case distinctions, treesize of input 63 treesize of output 88 [2021-01-06 11:19:53,793 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:53,866 INFO L625 ElimStorePlain]: treesize reduction 63, result has 55.0 percent of original size [2021-01-06 11:19:53,875 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-01-06 11:19:53,875 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:73, output treesize:77 [2021-01-06 11:19:54,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:19:54,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098798895] [2021-01-06 11:19:54,289 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:19:54,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770220226] [2021-01-06 11:19:54,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:19:54,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-01-06 11:19:54,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815155669] [2021-01-06 11:19:54,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 11:19:54,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:54,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 11:19:54,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-01-06 11:19:54,297 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 11 states. [2021-01-06 11:19:54,869 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2021-01-06 11:19:55,406 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2021-01-06 11:19:55,559 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-01-06 11:19:55,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:55,763 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2021-01-06 11:19:55,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 11:19:55,764 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2021-01-06 11:19:55,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:55,765 INFO L225 Difference]: With dead ends: 42 [2021-01-06 11:19:55,765 INFO L226 Difference]: Without dead ends: 40 [2021-01-06 11:19:55,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2021-01-06 11:19:55,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-01-06 11:19:55,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 30. [2021-01-06 11:19:55,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-01-06 11:19:55,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-01-06 11:19:55,777 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 20 [2021-01-06 11:19:55,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:55,777 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-01-06 11:19:55,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 11:19:55,778 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-01-06 11:19:55,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-01-06 11:19:55,778 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:55,778 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:55,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:19:55,992 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:55,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:55,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1197174726, now seen corresponding path program 2 times [2021-01-06 11:19:55,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:55,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843450425] [2021-01-06 11:19:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:56,012 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:19:56,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857913546] [2021-01-06 11:19:56,013 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 11:19:56,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:19:56,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:19:56,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-06 11:19:56,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-06 11:19:56,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843450425] [2021-01-06 11:19:56,180 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:19:56,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857913546] [2021-01-06 11:19:56,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:19:56,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-01-06 11:19:56,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83069574] [2021-01-06 11:19:56,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 11:19:56,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:19:56,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 11:19:56,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-01-06 11:19:56,184 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 8 states. [2021-01-06 11:19:56,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:19:56,358 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2021-01-06 11:19:56,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 11:19:56,359 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2021-01-06 11:19:56,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:19:56,365 INFO L225 Difference]: With dead ends: 62 [2021-01-06 11:19:56,365 INFO L226 Difference]: Without dead ends: 33 [2021-01-06 11:19:56,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-01-06 11:19:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-01-06 11:19:56,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2021-01-06 11:19:56,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-01-06 11:19:56,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-01-06 11:19:56,390 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 24 [2021-01-06 11:19:56,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:19:56,392 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-01-06 11:19:56,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 11:19:56,392 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-01-06 11:19:56,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-06 11:19:56,394 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:19:56,394 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:19:56,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-01-06 11:19:56,610 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:19:56,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:19:56,611 INFO L82 PathProgramCache]: Analyzing trace with hash -55017726, now seen corresponding path program 3 times [2021-01-06 11:19:56,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:19:56,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499110999] [2021-01-06 11:19:56,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:19:56,661 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:19:56,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354303724] [2021-01-06 11:19:56,663 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 11:19:56,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-01-06 11:19:56,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:19:56,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 48 conjunts are in the unsatisfiable core [2021-01-06 11:19:56,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:19:56,837 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 11:19:56,840 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,859 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:56,869 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 29 treesize of output 17 [2021-01-06 11:19:56,871 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,890 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:56,892 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,892 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:33 [2021-01-06 11:19:56,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:56,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:56,944 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2021-01-06 11:19:56,949 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,978 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:56,980 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:56,980 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:59 [2021-01-06 11:19:57,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,167 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:57,167 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 148 [2021-01-06 11:19:57,173 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:57,274 INFO L625 ElimStorePlain]: treesize reduction 88, result has 44.3 percent of original size [2021-01-06 11:19:57,276 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:19:57,277 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:70 [2021-01-06 11:19:57,356 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:19:57,509 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:57,707 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-01-06 11:19:57,884 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:57,900 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:57,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:57,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:57,919 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:57,927 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:57,979 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:57,980 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 151 [2021-01-06 11:19:57,985 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:58,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:58,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:58,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:58,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:58,023 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:58,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:58,028 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 70 [2021-01-06 11:19:58,039 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:58,270 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-01-06 11:19:58,271 INFO L625 ElimStorePlain]: treesize reduction 108, result has 63.5 percent of original size [2021-01-06 11:19:58,275 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 2 xjuncts. [2021-01-06 11:19:58,275 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:192, output treesize:188 [2021-01-06 11:19:58,447 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2021-01-06 11:19:58,448 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:58,624 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2021-01-06 11:19:58,625 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:19:58,639 INFO L443 ElimStorePlain]: Different costs {50=[v_prenex_8], 70=[|v_#memory_int_21|]} [2021-01-06 11:19:58,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:58,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:58,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:58,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:58,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:58,686 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:59,077 WARN L197 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-01-06 11:19:59,084 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:19:59,084 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 85 treesize of output 432 [2021-01-06 11:19:59,096 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2021-01-06 11:19:59,096 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:19:59,098 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2021-01-06 11:19:59,099 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:19:59,101 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2021-01-06 11:19:59,102 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:19:59,104 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2021-01-06 11:19:59,105 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:19:59,106 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2021-01-06 11:19:59,107 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:19:59,108 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2021-01-06 11:19:59,109 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:19:59,110 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2021-01-06 11:19:59,111 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:19:59,112 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2021-01-06 11:19:59,112 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:19:59,113 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2021-01-06 11:19:59,113 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-06 11:19:59,114 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2021-01-06 11:19:59,115 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:19:59,141 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:19:59,822 WARN L197 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 80 [2021-01-06 11:19:59,823 INFO L625 ElimStorePlain]: treesize reduction 808, result has 20.8 percent of original size [2021-01-06 11:19:59,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:59,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:59,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:59,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:19:59,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:19:59,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:20:00,569 WARN L197 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-01-06 11:20:00,570 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:20:00,570 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 98 treesize of output 652 [2021-01-06 11:20:00,600 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2021-01-06 11:20:00,601 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-06 11:20:00,606 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 2, 1] term [2021-01-06 11:20:00,606 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-01-06 11:20:00,608 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2021-01-06 11:20:00,609 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-01-06 11:20:00,610 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2021-01-06 11:20:00,612 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:20:00,613 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2021-01-06 11:20:00,613 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:20:00,614 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2021-01-06 11:20:00,615 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:20:00,616 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 1] term [2021-01-06 11:20:00,617 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:20:00,617 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 1] term [2021-01-06 11:20:00,618 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:20:00,619 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 1] term [2021-01-06 11:20:00,619 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-06 11:20:00,620 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2021-01-06 11:20:00,620 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-06 11:20:00,621 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2021-01-06 11:20:00,621 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-06 11:20:00,622 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2021-01-06 11:20:00,622 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-06 11:20:00,623 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2021-01-06 11:20:00,623 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:20:00,667 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:20:01,260 WARN L197 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 69 [2021-01-06 11:20:01,261 INFO L625 ElimStorePlain]: treesize reduction 1408, result has 12.7 percent of original size [2021-01-06 11:20:01,268 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2021-01-06 11:20:01,268 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:207, output treesize:205 [2021-01-06 11:20:01,485 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-01-06 11:20:01,498 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:20:01,502 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:20:01,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:20:01,515 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:20:01,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:20:04,372 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-01-06 11:20:04,389 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-01-06 11:20:06,809 WARN L197 SmtUtils]: Spent 2.22 s on a formula simplification that was a NOOP. DAG size: 124 [2021-01-06 11:20:12,936 WARN L197 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 126 [2021-01-06 11:20:17,922 WARN L197 SmtUtils]: Spent 2.22 s on a formula simplification that was a NOOP. DAG size: 126 [2021-01-06 11:20:18,624 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-01-06 11:20:18,651 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 5, 1] term [2021-01-06 11:20:18,651 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-01-06 11:20:18,663 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:18,668 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:18,672 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:20:18,695 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:20:18,698 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:20:18,701 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:18,722 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:20:18,727 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:20:18,730 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:20:18,738 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:20:18,766 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:20:18,770 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:20:18,773 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:18,780 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:20:18,797 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 3, 1] term [2021-01-06 11:20:18,798 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-01-06 11:20:18,803 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:18,806 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:18,809 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:20:18,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:20:18,829 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:20:18,856 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:20:18,860 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:20:18,862 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:20:18,872 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:20:18,891 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:20:18,894 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:20:18,896 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:20:18,902 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:20:18,920 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:18,924 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:20:18,926 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:20:18,934 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:20:19,052 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:20:19,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499110999] [2021-01-06 11:20:19,053 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:20:19,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354303724] [2021-01-06 11:20:19,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:20:19,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2021-01-06 11:20:19,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658634826] [2021-01-06 11:20:19,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 11:20:19,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:20:19,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 11:20:19,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=306, Unknown=2, NotChecked=0, Total=380 [2021-01-06 11:20:19,058 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 20 states. [2021-01-06 11:20:19,838 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-01-06 11:20:20,198 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-01-06 11:20:20,637 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-06 11:20:21,030 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-06 11:20:21,312 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2021-01-06 11:20:25,919 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-06 11:20:28,283 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2021-01-06 11:20:29,767 WARN L197 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2021-01-06 11:20:34,996 WARN L197 SmtUtils]: Spent 5.01 s on a formula simplification. DAG size of input: 156 DAG size of output: 115 [2021-01-06 11:20:55,386 WARN L197 SmtUtils]: Spent 19.91 s on a formula simplification. DAG size of input: 157 DAG size of output: 116 [2021-01-06 11:21:01,729 WARN L197 SmtUtils]: Spent 4.59 s on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2021-01-06 11:21:07,327 WARN L197 SmtUtils]: Spent 5.14 s on a formula simplification. DAG size of input: 161 DAG size of output: 106 [2021-01-06 11:21:09,865 WARN L197 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 159 DAG size of output: 105 [2021-01-06 11:21:12,456 WARN L197 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 79 [2021-01-06 11:21:16,064 WARN L197 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 158 DAG size of output: 117 [2021-01-06 11:21:20,747 WARN L197 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 134 DAG size of output: 127 [2021-01-06 11:21:22,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:21:22,760 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2021-01-06 11:21:22,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-01-06 11:21:22,764 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 28 [2021-01-06 11:21:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:21:22,769 INFO L225 Difference]: With dead ends: 64 [2021-01-06 11:21:22,770 INFO L226 Difference]: Without dead ends: 62 [2021-01-06 11:21:22,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 69.8s TimeCoverageRelationStatistics Valid=283, Invalid=1274, Unknown=3, NotChecked=0, Total=1560 [2021-01-06 11:21:22,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-01-06 11:21:22,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 42. [2021-01-06 11:21:22,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-01-06 11:21:22,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-01-06 11:21:22,801 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 28 [2021-01-06 11:21:22,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:21:22,802 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-01-06 11:21:22,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 11:21:22,802 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-01-06 11:21:22,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-06 11:21:22,806 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:21:22,808 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:21:23,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:21:23,009 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:21:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:21:23,010 INFO L82 PathProgramCache]: Analyzing trace with hash 711279424, now seen corresponding path program 4 times [2021-01-06 11:21:23,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:21:23,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211101530] [2021-01-06 11:21:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:21:23,060 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:21:23,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [300878991] [2021-01-06 11:21:23,061 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 11:21:23,155 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:21:23,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:21:23,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 11:21:23,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:21:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 11:21:23,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211101530] [2021-01-06 11:21:23,335 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:21:23,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300878991] [2021-01-06 11:21:23,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:21:23,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 11:21:23,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156455659] [2021-01-06 11:21:23,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 11:21:23,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:21:23,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 11:21:23,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-06 11:21:23,338 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 9 states. [2021-01-06 11:21:23,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:21:23,710 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2021-01-06 11:21:23,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 11:21:23,712 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2021-01-06 11:21:23,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:21:23,713 INFO L225 Difference]: With dead ends: 87 [2021-01-06 11:21:23,713 INFO L226 Difference]: Without dead ends: 72 [2021-01-06 11:21:23,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-01-06 11:21:23,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-01-06 11:21:23,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 42. [2021-01-06 11:21:23,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-01-06 11:21:23,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2021-01-06 11:21:23,728 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 30 [2021-01-06 11:21:23,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:21:23,729 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2021-01-06 11:21:23,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 11:21:23,729 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2021-01-06 11:21:23,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-06 11:21:23,730 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:21:23,730 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:21:23,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:21:23,932 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:21:23,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:21:23,933 INFO L82 PathProgramCache]: Analyzing trace with hash 481747840, now seen corresponding path program 5 times [2021-01-06 11:21:23,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:21:23,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303470290] [2021-01-06 11:21:23,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:21:23,958 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:21:23,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [428861110] [2021-01-06 11:21:23,959 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 11:21:24,074 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 11:21:24,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:21:24,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 11:21:24,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:21:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 11:21:24,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303470290] [2021-01-06 11:21:24,258 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:21:24,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428861110] [2021-01-06 11:21:24,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:21:24,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 11:21:24,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020853657] [2021-01-06 11:21:24,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 11:21:24,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:21:24,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 11:21:24,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-06 11:21:24,261 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 9 states. [2021-01-06 11:21:24,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:21:24,589 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2021-01-06 11:21:24,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 11:21:24,591 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2021-01-06 11:21:24,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:21:24,592 INFO L225 Difference]: With dead ends: 78 [2021-01-06 11:21:24,592 INFO L226 Difference]: Without dead ends: 65 [2021-01-06 11:21:24,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-01-06 11:21:24,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-01-06 11:21:24,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 44. [2021-01-06 11:21:24,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-01-06 11:21:24,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2021-01-06 11:21:24,609 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 30 [2021-01-06 11:21:24,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:21:24,610 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-01-06 11:21:24,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 11:21:24,610 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2021-01-06 11:21:24,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-01-06 11:21:24,611 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:21:24,611 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:21:24,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-01-06 11:21:24,827 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:21:24,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:21:24,828 INFO L82 PathProgramCache]: Analyzing trace with hash -412561416, now seen corresponding path program 6 times [2021-01-06 11:21:24,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:21:24,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966439928] [2021-01-06 11:21:24,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:21:24,853 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:21:24,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [524009046] [2021-01-06 11:21:24,853 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 11:21:24,935 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-01-06 11:21:24,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:21:24,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjunts are in the unsatisfiable core [2021-01-06 11:21:24,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:21:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-06 11:21:25,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966439928] [2021-01-06 11:21:25,138 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:21:25,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524009046] [2021-01-06 11:21:25,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:21:25,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-01-06 11:21:25,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757404056] [2021-01-06 11:21:25,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 11:21:25,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:21:25,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 11:21:25,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-01-06 11:21:25,140 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 10 states. [2021-01-06 11:21:25,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:21:25,583 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2021-01-06 11:21:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 11:21:25,585 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2021-01-06 11:21:25,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:21:25,586 INFO L225 Difference]: With dead ends: 69 [2021-01-06 11:21:25,589 INFO L226 Difference]: Without dead ends: 43 [2021-01-06 11:21:25,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-01-06 11:21:25,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-01-06 11:21:25,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 33. [2021-01-06 11:21:25,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-01-06 11:21:25,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-01-06 11:21:25,615 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 32 [2021-01-06 11:21:25,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:21:25,615 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-01-06 11:21:25,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 11:21:25,616 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-01-06 11:21:25,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-01-06 11:21:25,618 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:21:25,619 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:21:25,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-06 11:21:25,820 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:21:25,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:21:25,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1146912830, now seen corresponding path program 7 times [2021-01-06 11:21:25,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:21:25,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49851009] [2021-01-06 11:21:25,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:21:25,843 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:21:25,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [628514008] [2021-01-06 11:21:25,843 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 11:21:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:21:25,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 54 conjunts are in the unsatisfiable core [2021-01-06 11:21:25,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:21:26,018 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 11:21:26,022 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:26,055 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:26,067 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 29 treesize of output 17 [2021-01-06 11:21:26,069 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:26,105 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:26,107 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:26,108 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:33 [2021-01-06 11:21:26,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:26,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,182 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2021-01-06 11:21:26,186 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:26,227 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:26,229 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:26,230 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:59 [2021-01-06 11:21:26,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,383 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:26,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,391 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 53 [2021-01-06 11:21:26,396 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:26,453 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:26,455 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:26,455 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:78 [2021-01-06 11:21:26,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:26,696 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:26,697 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 91 [2021-01-06 11:21:26,701 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:26,827 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-01-06 11:21:26,828 INFO L625 ElimStorePlain]: treesize reduction 25, result has 78.1 percent of original size [2021-01-06 11:21:26,830 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 11:21:26,831 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:93, output treesize:89 [2021-01-06 11:21:27,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:27,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,200 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:27,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,216 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:27,216 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 118 [2021-01-06 11:21:27,221 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:27,396 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-06 11:21:27,397 INFO L625 ElimStorePlain]: treesize reduction 34, result has 80.0 percent of original size [2021-01-06 11:21:27,400 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 11:21:27,401 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:128, output treesize:136 [2021-01-06 11:21:27,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:27,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:27,813 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:27,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:27,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:28,062 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2021-01-06 11:21:28,063 INFO L348 Elim1Store]: treesize reduction 24, result has 84.4 percent of original size [2021-01-06 11:21:28,064 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 38 case distinctions, treesize of input 125 treesize of output 240 [2021-01-06 11:21:28,075 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:28,303 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2021-01-06 11:21:28,304 INFO L625 ElimStorePlain]: treesize reduction 197, result has 40.7 percent of original size [2021-01-06 11:21:28,307 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 11:21:28,307 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:140, output treesize:135 [2021-01-06 11:21:28,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:28,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:28,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:28,855 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-01-06 11:21:28,856 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:28,857 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 129 treesize of output 247 [2021-01-06 11:21:28,876 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 2, 1] term [2021-01-06 11:21:28,876 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:21:28,877 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 2, 1] term [2021-01-06 11:21:28,878 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:21:28,878 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 1] term [2021-01-06 11:21:28,879 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:21:28,887 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:29,168 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 57 [2021-01-06 11:21:29,169 INFO L625 ElimStorePlain]: treesize reduction 264, result has 42.5 percent of original size [2021-01-06 11:21:29,173 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 11:21:29,174 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:138, output treesize:195 [2021-01-06 11:21:30,147 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:21:30,152 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:21:30,155 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:21:30,163 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:21:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:21:30,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49851009] [2021-01-06 11:21:30,294 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:21:30,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628514008] [2021-01-06 11:21:30,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:21:30,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2021-01-06 11:21:30,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919886376] [2021-01-06 11:21:30,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 11:21:30,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:21:30,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 11:21:30,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-01-06 11:21:30,297 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 20 states. [2021-01-06 11:21:30,890 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-01-06 11:21:31,077 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-01-06 11:21:31,259 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2021-01-06 11:21:31,440 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-01-06 11:21:31,675 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-01-06 11:21:31,995 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-06 11:21:32,216 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-06 11:21:32,457 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-01-06 11:21:32,717 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-01-06 11:21:32,972 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-06 11:21:33,341 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-01-06 11:21:33,717 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-01-06 11:21:34,149 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-01-06 11:21:34,511 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2021-01-06 11:21:34,896 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 76 [2021-01-06 11:21:35,331 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-01-06 11:21:35,801 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-01-06 11:21:36,174 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-01-06 11:21:36,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:21:36,231 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2021-01-06 11:21:36,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-01-06 11:21:36,234 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 32 [2021-01-06 11:21:36,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:21:36,234 INFO L225 Difference]: With dead ends: 47 [2021-01-06 11:21:36,235 INFO L226 Difference]: Without dead ends: 45 [2021-01-06 11:21:36,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=280, Invalid=1280, Unknown=0, NotChecked=0, Total=1560 [2021-01-06 11:21:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-01-06 11:21:36,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2021-01-06 11:21:36,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2021-01-06 11:21:36,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2021-01-06 11:21:36,252 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 32 [2021-01-06 11:21:36,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:21:36,252 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2021-01-06 11:21:36,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 11:21:36,253 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2021-01-06 11:21:36,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-01-06 11:21:36,253 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:21:36,253 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:21:36,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-01-06 11:21:36,455 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:21:36,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:21:36,457 INFO L82 PathProgramCache]: Analyzing trace with hash -686245078, now seen corresponding path program 8 times [2021-01-06 11:21:36,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:21:36,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402867691] [2021-01-06 11:21:36,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:21:36,477 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:21:36,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804051538] [2021-01-06 11:21:36,481 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 11:21:36,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:21:36,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:21:36,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 11:21:36,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:21:36,861 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 32 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-01-06 11:21:36,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402867691] [2021-01-06 11:21:36,862 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:21:36,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804051538] [2021-01-06 11:21:36,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:21:36,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-01-06 11:21:36,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489187934] [2021-01-06 11:21:36,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-06 11:21:36,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:21:36,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-06 11:21:36,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-01-06 11:21:36,864 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 12 states. [2021-01-06 11:21:37,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:21:37,470 INFO L93 Difference]: Finished difference Result 99 states and 105 transitions. [2021-01-06 11:21:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-06 11:21:37,473 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2021-01-06 11:21:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:21:37,474 INFO L225 Difference]: With dead ends: 99 [2021-01-06 11:21:37,474 INFO L226 Difference]: Without dead ends: 49 [2021-01-06 11:21:37,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2021-01-06 11:21:37,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-01-06 11:21:37,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2021-01-06 11:21:37,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-01-06 11:21:37,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2021-01-06 11:21:37,498 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 40 [2021-01-06 11:21:37,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:21:37,498 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2021-01-06 11:21:37,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-06 11:21:37,498 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2021-01-06 11:21:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-06 11:21:37,499 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:21:37,501 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:21:37,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:21:37,717 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:21:37,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:21:37,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1910132122, now seen corresponding path program 9 times [2021-01-06 11:21:37,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:21:37,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754234569] [2021-01-06 11:21:37,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:21:37,738 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:21:37,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324225851] [2021-01-06 11:21:37,739 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 11:21:37,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-01-06 11:21:37,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:21:37,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 80 conjunts are in the unsatisfiable core [2021-01-06 11:21:37,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:21:38,037 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 11:21:38,040 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:38,085 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:38,101 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 29 treesize of output 17 [2021-01-06 11:21:38,106 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:38,146 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:38,148 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:38,148 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:33 [2021-01-06 11:21:38,226 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:38,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,231 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2021-01-06 11:21:38,234 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:38,344 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-01-06 11:21:38,346 INFO L625 ElimStorePlain]: treesize reduction 4, result has 92.3 percent of original size [2021-01-06 11:21:38,349 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:38,349 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:48 [2021-01-06 11:21:38,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,558 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:38,559 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 54 [2021-01-06 11:21:38,563 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:38,658 INFO L625 ElimStorePlain]: treesize reduction 8, result has 87.3 percent of original size [2021-01-06 11:21:38,660 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:38,660 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:55 [2021-01-06 11:21:38,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,241 WARN L197 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2021-01-06 11:21:39,242 INFO L348 Elim1Store]: treesize reduction 101, result has 63.7 percent of original size [2021-01-06 11:21:39,243 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 206 [2021-01-06 11:21:39,251 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:39,454 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2021-01-06 11:21:39,455 INFO L625 ElimStorePlain]: treesize reduction 126, result has 38.5 percent of original size [2021-01-06 11:21:39,457 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:21:39,458 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:81, output treesize:79 [2021-01-06 11:21:39,713 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:21:39,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:39,895 INFO L244 Elim1Store]: Index analysis took 163 ms [2021-01-06 11:21:40,098 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-01-06 11:21:40,099 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:40,099 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 84 treesize of output 265 [2021-01-06 11:21:40,111 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:40,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:40,147 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:40,150 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 70 [2021-01-06 11:21:40,154 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:40,646 WARN L197 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-01-06 11:21:40,647 INFO L625 ElimStorePlain]: treesize reduction 170, result has 52.9 percent of original size [2021-01-06 11:21:40,649 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-01-06 11:21:40,649 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:205, output treesize:191 [2021-01-06 11:21:40,830 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-01-06 11:21:40,840 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:21:40,841 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:21:41,580 WARN L197 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2021-01-06 11:21:41,589 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:21:41,948 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-01-06 11:21:42,298 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-01-06 11:21:42,308 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:21:42,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,351 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:42,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,360 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:42,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,403 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:42,431 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:42,445 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-01-06 11:21:42,449 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 84 [2021-01-06 11:21:42,452 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:42,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,506 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:42,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:42,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:42,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:42,980 WARN L197 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-01-06 11:21:42,981 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:21:42,982 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 460 [2021-01-06 11:21:42,994 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 2, 1] term [2021-01-06 11:21:42,994 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-01-06 11:21:42,996 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2021-01-06 11:21:42,996 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-01-06 11:21:42,998 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2021-01-06 11:21:42,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:21:43,000 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2021-01-06 11:21:43,000 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:21:43,002 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2021-01-06 11:21:43,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:21:43,004 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2021-01-06 11:21:43,004 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:21:43,005 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2021-01-06 11:21:43,006 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:21:43,007 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2021-01-06 11:21:43,007 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:21:43,008 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2021-01-06 11:21:43,008 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:21:43,008 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 2, 1] term [2021-01-06 11:21:43,008 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:21:43,009 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 2, 1] term [2021-01-06 11:21:43,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:21:43,010 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2021-01-06 11:21:43,010 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:21:43,038 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:43,810 WARN L197 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 70 [2021-01-06 11:21:43,811 INFO L625 ElimStorePlain]: treesize reduction 1456, result has 15.4 percent of original size [2021-01-06 11:21:43,815 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 2 xjuncts. [2021-01-06 11:21:43,815 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:246, output treesize:266 [2021-01-06 11:21:44,086 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-01-06 11:21:44,448 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-01-06 11:21:44,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:21:44,474 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:21:44,476 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:44,487 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:44,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:44,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:44,552 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:44,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:44,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:45,610 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-01-06 11:21:45,613 INFO L348 Elim1Store]: treesize reduction 8, result has 98.2 percent of original size [2021-01-06 11:21:45,614 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 40 case distinctions, treesize of input 169 treesize of output 529 [2021-01-06 11:21:45,629 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2021-01-06 11:21:45,629 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-06 11:21:45,631 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 2, 1] term [2021-01-06 11:21:45,632 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-01-06 11:21:45,633 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2021-01-06 11:21:45,634 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-01-06 11:21:45,635 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2021-01-06 11:21:45,636 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:21:45,637 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2021-01-06 11:21:45,638 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:21:45,638 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2021-01-06 11:21:45,639 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:21:45,640 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2021-01-06 11:21:45,640 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:21:45,641 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2021-01-06 11:21:45,641 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:21:45,642 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2021-01-06 11:21:45,643 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:21:45,644 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2021-01-06 11:21:45,644 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:21:45,645 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2021-01-06 11:21:45,645 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:21:45,645 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2021-01-06 11:21:45,646 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-06 11:21:45,646 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2021-01-06 11:21:45,647 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:21:45,681 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:46,721 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 209 DAG size of output: 66 [2021-01-06 11:21:46,723 INFO L625 ElimStorePlain]: treesize reduction 1760, result has 9.6 percent of original size [2021-01-06 11:21:46,725 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 11:21:46,726 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:347, output treesize:187 [2021-01-06 11:21:47,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,263 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:47,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:47,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,275 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:47,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,309 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:47,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:47,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:48,729 WARN L197 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2021-01-06 11:21:48,730 INFO L348 Elim1Store]: treesize reduction 24, result has 95.7 percent of original size [2021-01-06 11:21:48,731 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 12 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 58 case distinctions, treesize of input 162 treesize of output 654 [2021-01-06 11:21:48,742 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[21, 3, 2, 1] term [2021-01-06 11:21:48,742 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 21 disjuncts [2021-01-06 11:21:48,743 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[20, 3, 2, 1] term [2021-01-06 11:21:48,744 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 20 disjuncts [2021-01-06 11:21:48,745 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[19, 3, 2, 1] term [2021-01-06 11:21:48,745 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 19 disjuncts [2021-01-06 11:21:48,746 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[18, 3, 2, 1] term [2021-01-06 11:21:48,746 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2021-01-06 11:21:48,747 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[17, 3, 2, 1] term [2021-01-06 11:21:48,748 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-06 11:21:48,748 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[16, 3, 2, 1] term [2021-01-06 11:21:48,749 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-06 11:21:48,749 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[15, 3, 2, 1] term [2021-01-06 11:21:48,750 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-06 11:21:48,750 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2021-01-06 11:21:48,751 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-06 11:21:48,752 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 2, 1] term [2021-01-06 11:21:48,752 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-01-06 11:21:48,753 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2021-01-06 11:21:48,753 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-01-06 11:21:48,754 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2021-01-06 11:21:48,754 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:21:48,755 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 1] term [2021-01-06 11:21:48,755 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:21:48,756 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 1] term [2021-01-06 11:21:48,756 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-06 11:21:48,757 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 1] term [2021-01-06 11:21:48,757 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-06 11:21:48,758 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 1] term [2021-01-06 11:21:48,758 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-06 11:21:48,758 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 1] term [2021-01-06 11:21:48,759 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-06 11:21:48,759 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2021-01-06 11:21:48,759 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-06 11:21:48,760 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2021-01-06 11:21:48,760 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-06 11:21:48,761 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2021-01-06 11:21:48,761 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-06 11:21:48,761 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2021-01-06 11:21:48,762 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:21:48,831 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:49,917 WARN L197 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 292 DAG size of output: 68 [2021-01-06 11:21:49,918 INFO L625 ElimStorePlain]: treesize reduction 3002, result has 6.3 percent of original size [2021-01-06 11:21:49,920 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 11:21:49,920 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:185, output treesize:203 [2021-01-06 11:21:50,203 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-01-06 11:21:50,446 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-01-06 11:21:50,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:50,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,508 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:50,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,535 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:50,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:21:50,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:50,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:21:51,931 WARN L197 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 159 DAG size of output: 157 [2021-01-06 11:21:51,932 INFO L348 Elim1Store]: treesize reduction 8, result has 98.6 percent of original size [2021-01-06 11:21:51,933 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 16 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 69 case distinctions, treesize of input 201 treesize of output 700 [2021-01-06 11:21:51,945 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[24, 3, 2, 1] term [2021-01-06 11:21:51,946 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 24 disjuncts [2021-01-06 11:21:51,948 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[23, 3, 2, 1] term [2021-01-06 11:21:51,948 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 23 disjuncts [2021-01-06 11:21:51,949 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[22, 3, 2, 1] term [2021-01-06 11:21:51,950 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 22 disjuncts [2021-01-06 11:21:51,950 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[21, 3, 2, 1] term [2021-01-06 11:21:51,951 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 21 disjuncts [2021-01-06 11:21:51,952 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[20, 3, 2, 1] term [2021-01-06 11:21:51,953 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 20 disjuncts [2021-01-06 11:21:51,954 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[19, 3, 2, 1] term [2021-01-06 11:21:51,954 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 19 disjuncts [2021-01-06 11:21:51,955 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[18, 3, 2, 1] term [2021-01-06 11:21:51,956 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2021-01-06 11:21:51,957 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[17, 3, 2, 1] term [2021-01-06 11:21:51,957 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-06 11:21:51,958 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[16, 3, 2, 1] term [2021-01-06 11:21:51,959 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-06 11:21:51,960 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[15, 3, 1] term [2021-01-06 11:21:51,960 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-06 11:21:51,961 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 1] term [2021-01-06 11:21:51,962 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-06 11:21:51,963 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 1] term [2021-01-06 11:21:51,963 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-01-06 11:21:51,964 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 1] term [2021-01-06 11:21:51,965 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2021-01-06 11:21:51,965 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 1] term [2021-01-06 11:21:51,965 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-06 11:21:51,966 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 1] term [2021-01-06 11:21:51,966 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2021-01-06 11:21:51,967 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 1] term [2021-01-06 11:21:51,967 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-06 11:21:51,968 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 1] term [2021-01-06 11:21:51,968 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-06 11:21:51,968 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 1] term [2021-01-06 11:21:51,969 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-06 11:21:51,969 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 1] term [2021-01-06 11:21:51,969 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-06 11:21:51,970 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2021-01-06 11:21:51,970 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-06 11:21:51,970 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2021-01-06 11:21:51,971 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-06 11:21:51,971 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2021-01-06 11:21:51,971 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-06 11:21:51,972 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2021-01-06 11:21:51,972 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:21:52,140 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 619 DAG size of output: 297 [2021-01-06 11:21:52,146 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:21:53,216 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 301 DAG size of output: 72 [2021-01-06 11:21:53,218 INFO L625 ElimStorePlain]: treesize reduction 2556, result has 7.4 percent of original size [2021-01-06 11:21:53,222 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 11:21:53,223 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:221, output treesize:204 [2021-01-06 11:21:54,999 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-06 11:21:55,724 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-06 11:21:56,114 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:21:56,122 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:21:56,129 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-06 11:21:56,141 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:21:56,146 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-06 11:21:56,152 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-06 11:21:56,170 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-06 11:21:56,388 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:21:56,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754234569] [2021-01-06 11:21:56,389 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:21:56,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324225851] [2021-01-06 11:21:56,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:21:56,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2021-01-06 11:21:56,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349188035] [2021-01-06 11:21:56,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-01-06 11:21:56,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:21:56,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-01-06 11:21:56,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930 [2021-01-06 11:21:56,395 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 31 states. [2021-01-06 11:21:57,398 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 37 [2021-01-06 11:21:57,928 WARN L197 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-01-06 11:21:58,367 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2021-01-06 11:21:59,005 WARN L197 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-06 11:21:59,529 WARN L197 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2021-01-06 11:22:00,234 WARN L197 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2021-01-06 11:22:00,903 WARN L197 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2021-01-06 11:22:01,482 WARN L197 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2021-01-06 11:22:02,233 WARN L197 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2021-01-06 11:22:02,860 WARN L197 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2021-01-06 11:22:03,284 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2021-01-06 11:22:03,669 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2021-01-06 11:22:04,131 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2021-01-06 11:22:04,563 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2021-01-06 11:22:05,445 WARN L197 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-01-06 11:22:05,948 WARN L197 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 97 [2021-01-06 11:22:06,593 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 96 [2021-01-06 11:22:07,410 WARN L197 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 96 [2021-01-06 11:22:08,111 WARN L197 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 98 [2021-01-06 11:22:08,938 WARN L197 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 101 [2021-01-06 11:22:09,600 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 107 [2021-01-06 11:22:10,239 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2021-01-06 11:22:11,116 WARN L197 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 99 [2021-01-06 11:22:12,447 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 167 DAG size of output: 108 [2021-01-06 11:22:13,618 WARN L197 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 105 [2021-01-06 11:22:14,815 WARN L197 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 101 [2021-01-06 11:22:14,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:22:14,894 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2021-01-06 11:22:14,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-06 11:22:14,897 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 44 [2021-01-06 11:22:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:22:14,898 INFO L225 Difference]: With dead ends: 81 [2021-01-06 11:22:14,899 INFO L226 Difference]: Without dead ends: 57 [2021-01-06 11:22:14,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=561, Invalid=3099, Unknown=0, NotChecked=0, Total=3660 [2021-01-06 11:22:14,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-01-06 11:22:14,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2021-01-06 11:22:14,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2021-01-06 11:22:14,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2021-01-06 11:22:14,917 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 44 [2021-01-06 11:22:14,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:22:14,917 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2021-01-06 11:22:14,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-01-06 11:22:14,918 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2021-01-06 11:22:14,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-06 11:22:14,918 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:22:14,918 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:22:15,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-01-06 11:22:15,134 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:22:15,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:22:15,135 INFO L82 PathProgramCache]: Analyzing trace with hash 2060720804, now seen corresponding path program 10 times [2021-01-06 11:22:15,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:22:15,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295614877] [2021-01-06 11:22:15,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:22:15,152 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:22:15,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232065706] [2021-01-06 11:22:15,153 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 11:22:15,217 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:22:15,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:22:15,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 11:22:15,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:22:15,487 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-01-06 11:22:15,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295614877] [2021-01-06 11:22:15,488 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:22:15,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232065706] [2021-01-06 11:22:15,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:22:15,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-01-06 11:22:15,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622666260] [2021-01-06 11:22:15,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-06 11:22:15,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:22:15,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-06 11:22:15,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-01-06 11:22:15,490 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 13 states. [2021-01-06 11:22:16,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:22:16,032 INFO L93 Difference]: Finished difference Result 113 states and 118 transitions. [2021-01-06 11:22:16,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-06 11:22:16,034 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 46 [2021-01-06 11:22:16,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:22:16,035 INFO L225 Difference]: With dead ends: 113 [2021-01-06 11:22:16,035 INFO L226 Difference]: Without dead ends: 80 [2021-01-06 11:22:16,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2021-01-06 11:22:16,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-01-06 11:22:16,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 47. [2021-01-06 11:22:16,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-01-06 11:22:16,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2021-01-06 11:22:16,049 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 46 [2021-01-06 11:22:16,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:22:16,049 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2021-01-06 11:22:16,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-01-06 11:22:16,049 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2021-01-06 11:22:16,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-06 11:22:16,050 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:22:16,050 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:22:16,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-01-06 11:22:16,251 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:22:16,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:22:16,252 INFO L82 PathProgramCache]: Analyzing trace with hash 7822052, now seen corresponding path program 11 times [2021-01-06 11:22:16,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:22:16,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089113425] [2021-01-06 11:22:16,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:22:16,267 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:22:16,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108637357] [2021-01-06 11:22:16,267 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:22:16,435 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-01-06 11:22:16,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:22:16,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 11:22:16,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:22:16,690 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-01-06 11:22:16,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089113425] [2021-01-06 11:22:16,690 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:22:16,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108637357] [2021-01-06 11:22:16,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:22:16,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-01-06 11:22:16,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118512403] [2021-01-06 11:22:16,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-06 11:22:16,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:22:16,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-06 11:22:16,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-01-06 11:22:16,692 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 13 states. [2021-01-06 11:22:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:22:17,168 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2021-01-06 11:22:17,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-06 11:22:17,171 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 46 [2021-01-06 11:22:17,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:22:17,172 INFO L225 Difference]: With dead ends: 79 [2021-01-06 11:22:17,172 INFO L226 Difference]: Without dead ends: 58 [2021-01-06 11:22:17,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2021-01-06 11:22:17,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-01-06 11:22:17,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2021-01-06 11:22:17,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-01-06 11:22:17,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2021-01-06 11:22:17,200 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 46 [2021-01-06 11:22:17,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:22:17,202 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2021-01-06 11:22:17,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-01-06 11:22:17,202 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2021-01-06 11:22:17,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-06 11:22:17,203 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:22:17,203 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:22:17,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-06 11:22:17,417 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:22:17,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:22:17,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1621255262, now seen corresponding path program 12 times [2021-01-06 11:22:17,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:22:17,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539521612] [2021-01-06 11:22:17,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:22:17,435 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:22:17,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030806604] [2021-01-06 11:22:17,435 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:22:17,728 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-01-06 11:22:17,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:22:17,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 80 conjunts are in the unsatisfiable core [2021-01-06 11:22:17,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:22:17,796 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 11:22:17,799 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:17,832 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:17,845 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 29 treesize of output 17 [2021-01-06 11:22:17,847 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:17,880 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:17,881 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:17,882 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:33 [2021-01-06 11:22:17,938 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:17,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:17,942 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2021-01-06 11:22:17,945 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:17,985 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:17,987 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:17,987 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:59 [2021-01-06 11:22:18,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,128 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 71 treesize of output 58 [2021-01-06 11:22:18,131 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:18,178 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:18,179 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:18,180 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:87, output treesize:81 [2021-01-06 11:22:18,356 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:18,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,373 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 67 [2021-01-06 11:22:18,375 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:18,428 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:18,429 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:18,430 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:95 [2021-01-06 11:22:18,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,650 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 89 treesize of output 76 [2021-01-06 11:22:18,652 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:18,707 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:18,708 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:18,708 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:102, output treesize:98 [2021-01-06 11:22:18,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:18,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:19,129 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-01-06 11:22:19,130 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:19,130 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 111 treesize of output 331 [2021-01-06 11:22:19,138 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:19,395 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 55 [2021-01-06 11:22:19,396 INFO L625 ElimStorePlain]: treesize reduction 232, result has 29.5 percent of original size [2021-01-06 11:22:19,398 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:22:19,398 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:127, output treesize:97 [2021-01-06 11:22:19,537 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:22:19,801 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-01-06 11:22:19,807 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:22:20,092 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-01-06 11:22:20,405 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-01-06 11:22:20,412 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:22:20,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,488 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:20,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,497 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:20,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,607 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:20,626 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:20,666 INFO L244 Elim1Store]: Index analysis took 232 ms [2021-01-06 11:22:20,798 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-01-06 11:22:20,799 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:20,800 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 13 disjoint index pairs (out of 45 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 111 treesize of output 274 [2021-01-06 11:22:20,807 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:20,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:20,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,868 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:20,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:20,876 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 17 disjoint index pairs (out of 36 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 106 [2021-01-06 11:22:20,880 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:21,392 WARN L197 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 73 [2021-01-06 11:22:21,394 INFO L625 ElimStorePlain]: treesize reduction 211, result has 54.7 percent of original size [2021-01-06 11:22:21,397 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 2 xjuncts. [2021-01-06 11:22:21,397 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:252, output treesize:255 [2021-01-06 11:22:21,765 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-01-06 11:22:22,160 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-01-06 11:22:22,168 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:22:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,233 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:22,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,332 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:22,390 INFO L244 Elim1Store]: Index analysis took 202 ms [2021-01-06 11:22:22,393 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:22,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,401 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:22,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:22,456 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:22,456 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 17 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 150 treesize of output 165 [2021-01-06 11:22:22,462 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:22,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,532 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:22,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,550 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:22,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:22,564 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:22,565 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:22,992 WARN L197 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-01-06 11:22:22,993 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:22,994 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 13 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 144 treesize of output 520 [2021-01-06 11:22:23,001 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[16, 3, 2, 1] term [2021-01-06 11:22:23,001 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-06 11:22:23,002 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[15, 3, 2, 1] term [2021-01-06 11:22:23,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-06 11:22:23,003 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2021-01-06 11:22:23,003 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-06 11:22:23,003 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 2, 1] term [2021-01-06 11:22:23,003 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-01-06 11:22:23,004 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2021-01-06 11:22:23,004 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-01-06 11:22:23,005 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2021-01-06 11:22:23,005 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:22:23,006 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2021-01-06 11:22:23,006 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:22:23,006 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2021-01-06 11:22:23,006 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:22:23,007 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 1] term [2021-01-06 11:22:23,007 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:22:23,008 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 1] term [2021-01-06 11:22:23,008 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:22:23,008 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 1] term [2021-01-06 11:22:23,008 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:22:23,009 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2021-01-06 11:22:23,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:22:23,009 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2021-01-06 11:22:23,009 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-06 11:22:23,010 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2021-01-06 11:22:23,010 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-06 11:22:23,010 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2021-01-06 11:22:23,010 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:22:23,043 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:24,554 WARN L197 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 241 DAG size of output: 84 [2021-01-06 11:22:24,555 INFO L625 ElimStorePlain]: treesize reduction 1734, result has 15.9 percent of original size [2021-01-06 11:22:24,559 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 2 xjuncts. [2021-01-06 11:22:24,559 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:330, output treesize:327 [2021-01-06 11:22:25,013 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-01-06 11:22:25,822 WARN L197 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2021-01-06 11:22:25,830 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:22:25,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:25,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:25,965 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:26,174 INFO L244 Elim1Store]: Index analysis took 310 ms [2021-01-06 11:22:26,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,179 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:26,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:26,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:26,191 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:26,777 WARN L197 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-01-06 11:22:26,778 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:26,779 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 14 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 161 treesize of output 597 [2021-01-06 11:22:26,791 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[18, 3, 2, 1] term [2021-01-06 11:22:26,791 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2021-01-06 11:22:26,793 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[17, 3, 2, 1] term [2021-01-06 11:22:26,793 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-06 11:22:26,795 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[16, 3, 2, 1] term [2021-01-06 11:22:26,795 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-06 11:22:26,796 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[15, 3, 2, 1] term [2021-01-06 11:22:26,796 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-06 11:22:26,797 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2021-01-06 11:22:26,797 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-06 11:22:26,798 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 2, 1] term [2021-01-06 11:22:26,798 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-01-06 11:22:26,799 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2021-01-06 11:22:26,799 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-01-06 11:22:26,800 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2021-01-06 11:22:26,801 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:22:26,801 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2021-01-06 11:22:26,802 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:22:26,802 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 1] term [2021-01-06 11:22:26,802 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:22:26,803 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 1] term [2021-01-06 11:22:26,803 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:22:26,804 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 1] term [2021-01-06 11:22:26,804 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:22:26,805 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 1] term [2021-01-06 11:22:26,805 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-06 11:22:26,805 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2021-01-06 11:22:26,806 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-06 11:22:26,806 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2021-01-06 11:22:26,806 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-06 11:22:26,807 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2021-01-06 11:22:26,807 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-06 11:22:26,808 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2021-01-06 11:22:26,808 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:22:26,856 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:26,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,900 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:26,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,971 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:26,973 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:26,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:26,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:26,982 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:27,042 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:22:27,043 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 17 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 197 treesize of output 196 [2021-01-06 11:22:27,049 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:28,926 WARN L197 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 312 DAG size of output: 91 [2021-01-06 11:22:28,927 INFO L625 ElimStorePlain]: treesize reduction 2969, result has 10.5 percent of original size [2021-01-06 11:22:28,931 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 2 xjuncts. [2021-01-06 11:22:28,931 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:394, output treesize:348 [2021-01-06 11:22:29,466 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-01-06 11:22:30,425 WARN L197 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-01-06 11:22:30,434 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:22:30,460 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:22:30,461 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:30,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,488 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:30,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:30,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,533 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:30,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:30,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:30,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:30,572 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:30,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:31,210 WARN L197 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2021-01-06 11:22:31,212 INFO L348 Elim1Store]: treesize reduction 8, result has 97.1 percent of original size [2021-01-06 11:22:31,213 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 18 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 69 case distinctions, treesize of input 197 treesize of output 430 [2021-01-06 11:22:31,223 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2021-01-06 11:22:31,223 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:22:31,224 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2021-01-06 11:22:31,224 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:22:31,224 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2021-01-06 11:22:31,225 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:22:31,225 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2021-01-06 11:22:31,225 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:22:31,226 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2021-01-06 11:22:31,226 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:22:31,226 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2021-01-06 11:22:31,226 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:22:31,236 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:31,681 WARN L197 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 78 [2021-01-06 11:22:31,682 INFO L625 ElimStorePlain]: treesize reduction 487, result has 33.7 percent of original size [2021-01-06 11:22:31,684 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 11:22:31,684 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:423, output treesize:248 [2021-01-06 11:22:32,009 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-01-06 11:22:32,356 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-01-06 11:22:32,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:32,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,440 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:32,445 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:32,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,451 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:32,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,462 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:32,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:22:32,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:32,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:22:33,051 WARN L197 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-01-06 11:22:33,053 INFO L348 Elim1Store]: treesize reduction 24, result has 90.2 percent of original size [2021-01-06 11:22:33,054 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 25 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 93 case distinctions, treesize of input 191 treesize of output 388 [2021-01-06 11:22:33,065 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2021-01-06 11:22:33,066 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:22:33,067 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2021-01-06 11:22:33,067 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:22:33,068 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 2, 1] term [2021-01-06 11:22:33,068 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:22:33,069 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2021-01-06 11:22:33,069 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:22:33,069 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2021-01-06 11:22:33,069 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:22:33,080 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:22:33,528 WARN L197 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 78 [2021-01-06 11:22:33,529 INFO L625 ElimStorePlain]: treesize reduction 504, result has 27.6 percent of original size [2021-01-06 11:22:33,533 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 11:22:33,534 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:214, output treesize:192 [2021-01-06 11:22:36,421 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-06 11:22:36,937 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:22:36,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539521612] [2021-01-06 11:22:36,938 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:22:36,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030806604] [2021-01-06 11:22:36,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:22:36,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2021-01-06 11:22:36,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806220471] [2021-01-06 11:22:36,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-01-06 11:22:36,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:22:36,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-01-06 11:22:36,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2021-01-06 11:22:36,940 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 34 states. [2021-01-06 11:22:37,559 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-01-06 11:22:37,946 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2021-01-06 11:22:38,141 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2021-01-06 11:22:38,390 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-01-06 11:22:38,590 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-06 11:22:38,860 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2021-01-06 11:22:39,328 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2021-01-06 11:22:39,665 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2021-01-06 11:22:40,192 WARN L197 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2021-01-06 11:22:41,180 WARN L197 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-01-06 11:22:41,875 WARN L197 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2021-01-06 11:22:42,420 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 68 [2021-01-06 11:22:43,199 WARN L197 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 73 [2021-01-06 11:22:43,989 WARN L197 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-01-06 11:22:44,821 WARN L197 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 79 [2021-01-06 11:22:45,742 WARN L197 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 80 [2021-01-06 11:22:46,785 WARN L197 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 89 [2021-01-06 11:22:47,347 WARN L197 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2021-01-06 11:22:47,874 WARN L197 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2021-01-06 11:22:48,489 WARN L197 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2021-01-06 11:22:49,312 WARN L197 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 107 [2021-01-06 11:22:50,105 WARN L197 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 106 [2021-01-06 11:22:51,006 WARN L197 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 106 [2021-01-06 11:22:51,832 WARN L197 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 108 [2021-01-06 11:22:52,800 WARN L197 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 112 [2021-01-06 11:22:53,956 WARN L197 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 112 [2021-01-06 11:22:55,132 WARN L197 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 112 [2021-01-06 11:22:55,920 WARN L197 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 114 [2021-01-06 11:22:56,742 WARN L197 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 104 [2021-01-06 11:22:57,803 WARN L197 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 108 [2021-01-06 11:22:58,519 WARN L197 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 104 [2021-01-06 11:22:58,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:22:58,533 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2021-01-06 11:22:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-06 11:22:58,536 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 48 [2021-01-06 11:22:58,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:22:58,537 INFO L225 Difference]: With dead ends: 97 [2021-01-06 11:22:58,537 INFO L226 Difference]: Without dead ends: 95 [2021-01-06 11:22:58,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 26.9s TimeCoverageRelationStatistics Valid=616, Invalid=3940, Unknown=0, NotChecked=0, Total=4556 [2021-01-06 11:22:58,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-01-06 11:22:58,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 72. [2021-01-06 11:22:58,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-01-06 11:22:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2021-01-06 11:22:58,559 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 48 [2021-01-06 11:22:58,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:22:58,559 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2021-01-06 11:22:58,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-01-06 11:22:58,559 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2021-01-06 11:22:58,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-06 11:22:58,560 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:22:58,560 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:22:58,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:22:58,761 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:22:58,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:22:58,762 INFO L82 PathProgramCache]: Analyzing trace with hash 498509024, now seen corresponding path program 13 times [2021-01-06 11:22:58,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:22:58,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063715190] [2021-01-06 11:22:58,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:22:58,790 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:22:58,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [702883930] [2021-01-06 11:22:58,790 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:22:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:22:58,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 11:22:58,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:22:59,292 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-01-06 11:22:59,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063715190] [2021-01-06 11:22:59,292 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:22:59,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702883930] [2021-01-06 11:22:59,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:22:59,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-01-06 11:22:59,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136396985] [2021-01-06 11:22:59,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 11:22:59,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:22:59,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 11:22:59,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-01-06 11:22:59,294 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 15 states. [2021-01-06 11:23:00,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:23:00,174 INFO L93 Difference]: Finished difference Result 151 states and 157 transitions. [2021-01-06 11:23:00,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-06 11:23:00,177 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 50 [2021-01-06 11:23:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:23:00,178 INFO L225 Difference]: With dead ends: 151 [2021-01-06 11:23:00,178 INFO L226 Difference]: Without dead ends: 128 [2021-01-06 11:23:00,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2021-01-06 11:23:00,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-01-06 11:23:00,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 72. [2021-01-06 11:23:00,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-01-06 11:23:00,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 75 transitions. [2021-01-06 11:23:00,201 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 75 transitions. Word has length 50 [2021-01-06 11:23:00,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:23:00,201 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 75 transitions. [2021-01-06 11:23:00,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 11:23:00,202 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 75 transitions. [2021-01-06 11:23:00,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-06 11:23:00,202 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:23:00,202 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:23:00,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:23:00,406 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:23:00,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:23:00,407 INFO L82 PathProgramCache]: Analyzing trace with hash -947202784, now seen corresponding path program 14 times [2021-01-06 11:23:00,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:23:00,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407047317] [2021-01-06 11:23:00,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:23:00,422 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:23:00,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1133327247] [2021-01-06 11:23:00,422 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:23:00,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:23:00,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:23:00,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 11:23:00,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:23:00,961 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-01-06 11:23:00,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407047317] [2021-01-06 11:23:00,962 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:23:00,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133327247] [2021-01-06 11:23:00,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:23:00,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-01-06 11:23:00,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828139348] [2021-01-06 11:23:00,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 11:23:00,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:23:00,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 11:23:00,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-01-06 11:23:00,964 INFO L87 Difference]: Start difference. First operand 72 states and 75 transitions. Second operand 15 states. [2021-01-06 11:23:01,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:23:01,859 INFO L93 Difference]: Finished difference Result 130 states and 134 transitions. [2021-01-06 11:23:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-06 11:23:01,862 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 50 [2021-01-06 11:23:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:23:01,863 INFO L225 Difference]: With dead ends: 130 [2021-01-06 11:23:01,864 INFO L226 Difference]: Without dead ends: 109 [2021-01-06 11:23:01,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2021-01-06 11:23:01,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-01-06 11:23:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 74. [2021-01-06 11:23:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-01-06 11:23:01,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2021-01-06 11:23:01,885 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 50 [2021-01-06 11:23:01,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:23:01,886 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2021-01-06 11:23:01,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 11:23:01,886 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2021-01-06 11:23:01,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-06 11:23:01,886 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:23:01,886 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:23:02,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-01-06 11:23:02,087 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:23:02,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:23:02,088 INFO L82 PathProgramCache]: Analyzing trace with hash -277121314, now seen corresponding path program 15 times [2021-01-06 11:23:02,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:23:02,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613844794] [2021-01-06 11:23:02,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:23:02,103 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:23:02,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757239952] [2021-01-06 11:23:02,104 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:23:02,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-01-06 11:23:02,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:23:02,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 92 conjunts are in the unsatisfiable core [2021-01-06 11:23:02,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:23:02,829 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 11:23:02,833 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:02,875 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:23:02,889 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 29 treesize of output 17 [2021-01-06 11:23:02,891 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:02,933 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:23:02,935 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:23:02,935 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:33 [2021-01-06 11:23:03,014 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:23:03,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,018 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2021-01-06 11:23:03,021 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:03,072 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:23:03,074 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:23:03,074 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:59 [2021-01-06 11:23:03,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,263 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:23:03,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,271 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 53 [2021-01-06 11:23:03,275 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:03,347 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:23:03,348 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:23:03,349 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:78 [2021-01-06 11:23:03,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,622 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 72 treesize of output 62 [2021-01-06 11:23:03,625 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:03,695 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:23:03,696 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:23:03,697 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:85, output treesize:81 [2021-01-06 11:23:03,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:03,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:04,338 WARN L197 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2021-01-06 11:23:04,340 INFO L348 Elim1Store]: treesize reduction 99, result has 63.1 percent of original size [2021-01-06 11:23:04,340 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 6 new quantified variables, introduced 9 case distinctions, treesize of input 94 treesize of output 212 [2021-01-06 11:23:04,346 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:04,624 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2021-01-06 11:23:04,626 INFO L625 ElimStorePlain]: treesize reduction 124, result has 40.7 percent of original size [2021-01-06 11:23:04,628 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:23:04,628 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:85 [2021-01-06 11:23:04,785 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:23:05,119 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-01-06 11:23:05,126 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:23:05,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,379 INFO L244 Elim1Store]: Index analysis took 236 ms [2021-01-06 11:23:05,559 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:23:05,560 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:23:05,560 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 213 [2021-01-06 11:23:05,563 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 1] term [2021-01-06 11:23:05,564 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:23:05,564 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2021-01-06 11:23:05,565 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:23:05,565 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 1] term [2021-01-06 11:23:05,566 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:23:05,572 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:05,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:05,701 INFO L244 Elim1Store]: Index analysis took 114 ms [2021-01-06 11:23:06,491 WARN L197 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-01-06 11:23:06,493 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:23:06,494 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 92 treesize of output 518 [2021-01-06 11:23:06,500 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 2, 1] term [2021-01-06 11:23:06,501 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-01-06 11:23:06,501 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 2, 1] term [2021-01-06 11:23:06,501 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:23:06,502 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 2, 1] term [2021-01-06 11:23:06,502 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:23:06,503 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 2, 1] term [2021-01-06 11:23:06,503 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:23:06,504 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 1] term [2021-01-06 11:23:06,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:23:06,504 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 1] term [2021-01-06 11:23:06,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:23:06,505 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 1] term [2021-01-06 11:23:06,505 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:23:06,505 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 1] term [2021-01-06 11:23:06,505 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:23:06,506 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 1] term [2021-01-06 11:23:06,506 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:23:06,506 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2021-01-06 11:23:06,506 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:23:06,507 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 1] term [2021-01-06 11:23:06,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:23:06,521 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:09,520 WARN L197 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 194 DAG size of output: 75 [2021-01-06 11:23:09,522 INFO L625 ElimStorePlain]: treesize reduction 1102, result has 17.5 percent of original size [2021-01-06 11:23:09,525 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:23:09,526 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 2 xjuncts. [2021-01-06 11:23:09,527 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:205, output treesize:234 [2021-01-06 11:23:09,529 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:23:10,244 WARN L197 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-01-06 11:23:10,660 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-01-06 11:23:10,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:23:10,667 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:23:10,668 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:23:10,669 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:23:10,670 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:23:10,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:10,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,037 INFO L244 Elim1Store]: Index analysis took 347 ms [2021-01-06 11:23:11,350 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-01-06 11:23:11,351 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:23:11,352 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 101 treesize of output 305 [2021-01-06 11:23:11,357 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 1] term [2021-01-06 11:23:11,357 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:23:11,357 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 1] term [2021-01-06 11:23:11,357 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:23:11,358 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 1] term [2021-01-06 11:23:11,358 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:23:11,358 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2021-01-06 11:23:11,358 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:23:11,359 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 1] term [2021-01-06 11:23:11,359 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:23:11,364 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:11,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,395 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:23:11,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,415 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:23:11,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:23:11,509 INFO L244 Elim1Store]: Index analysis took 128 ms [2021-01-06 11:23:11,512 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 73 [2021-01-06 11:23:11,516 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:11,526 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-01-06 11:23:11,528 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:11,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:11,859 INFO L244 Elim1Store]: Index analysis took 309 ms [2021-01-06 11:23:12,228 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-01-06 11:23:12,229 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:23:12,230 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 7 new quantified variables, introduced 12 case distinctions, treesize of input 93 treesize of output 339 [2021-01-06 11:23:12,237 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:12,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:23:12,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,301 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:23:12,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,412 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:23:12,417 INFO L244 Elim1Store]: Index analysis took 163 ms [2021-01-06 11:23:12,420 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 84 [2021-01-06 11:23:12,424 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:12,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:23:12,485 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 86 treesize of output 91 [2021-01-06 11:23:12,488 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-01-06 11:23:13,924 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 122 DAG size of output: 72 [2021-01-06 11:23:13,926 INFO L625 ElimStorePlain]: treesize reduction 646, result has 35.7 percent of original size [2021-01-06 11:23:13,928 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2021-01-06 11:23:13,929 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:667, output treesize:359 [2021-01-06 11:23:14,557 WARN L197 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-01-06 11:23:14,567 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-06 11:23:14,568 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:23:14,568 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:23:14,569 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:23:14,570 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:23:14,571 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:23:16,518 WARN L197 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-01-06 11:23:16,530 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts