/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/ss4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 11:28:58,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 11:28:58,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 11:28:58,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 11:28:58,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 11:28:58,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 11:28:58,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 11:28:58,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 11:28:58,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 11:28:58,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 11:28:58,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 11:28:58,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 11:28:58,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 11:28:58,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 11:28:58,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 11:28:58,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 11:28:58,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 11:28:58,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 11:28:58,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 11:28:58,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 11:28:58,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 11:28:58,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 11:28:58,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 11:28:58,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 11:28:58,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 11:28:58,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 11:28:58,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 11:28:58,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 11:28:58,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 11:28:58,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 11:28:58,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 11:28:58,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 11:28:58,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 11:28:58,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 11:28:58,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 11:28:58,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 11:28:58,648 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 11:28:58,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 11:28:58,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 11:28:58,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 11:28:58,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 11:28:58,722 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 11:28:58,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 11:28:58,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 11:28:58,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 11:28:58,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 11:28:58,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 11:28:58,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 11:28:58,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 11:28:58,728 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 11:28:58,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 11:28:58,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 11:28:58,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 11:28:58,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 11:28:58,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 11:28:58,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 11:28:58,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 11:28:58,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 11:28:58,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 11:28:58,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 11:28:58,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 11:28:58,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 11:28:58,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 11:28:59,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 11:28:59,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 11:28:59,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 11:28:59,313 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 11:28:59,314 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 11:28:59,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss4.c [2021-01-06 11:28:59,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e9b870497/b70c71ed67e54ac8a2925ca060f9174b/FLAGa3bfe11d4 [2021-01-06 11:29:00,075 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 11:29:00,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/ss4.c [2021-01-06 11:29:00,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e9b870497/b70c71ed67e54ac8a2925ca060f9174b/FLAGa3bfe11d4 [2021-01-06 11:29:00,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e9b870497/b70c71ed67e54ac8a2925ca060f9174b [2021-01-06 11:29:00,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 11:29:00,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 11:29:00,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 11:29:00,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 11:29:00,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 11:29:00,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:29:00" (1/1) ... [2021-01-06 11:29:00,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5676d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:00, skipping insertion in model container [2021-01-06 11:29:00,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:29:00" (1/1) ... [2021-01-06 11:29:00,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 11:29:00,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 11:29:00,863 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/ss4.c[586,599] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[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,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[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: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[0]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[0]]] [2021-01-06 11:29:00,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:29:00,956 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 11:29:00,989 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/ss4.c[586,599] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] left hand side expression in assignment: 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,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] left hand side expression in assignment: 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: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] [2021-01-06 11:29:01,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:29:01,064 INFO L208 MainTranslator]: Completed translation [2021-01-06 11:29:01,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01 WrapperNode [2021-01-06 11:29:01,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 11:29:01,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 11:29:01,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 11:29:01,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 11:29:01,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01" (1/1) ... [2021-01-06 11:29:01,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01" (1/1) ... [2021-01-06 11:29:01,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 11:29:01,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 11:29:01,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 11:29:01,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 11:29:01,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01" (1/1) ... [2021-01-06 11:29:01,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01" (1/1) ... [2021-01-06 11:29:01,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01" (1/1) ... [2021-01-06 11:29:01,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01" (1/1) ... [2021-01-06 11:29:01,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01" (1/1) ... [2021-01-06 11:29:01,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01" (1/1) ... [2021-01-06 11:29:01,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01" (1/1) ... [2021-01-06 11:29:01,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 11:29:01,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 11:29:01,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 11:29:01,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 11:29:01,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01" (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 11:29:01,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 11:29:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 11:29:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 11:29:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-06 11:29:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 11:29:01,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 11:29:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 11:29:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 11:29:01,869 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 11:29:01,870 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-01-06 11:29:01,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:29:01 BoogieIcfgContainer [2021-01-06 11:29:01,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 11:29:01,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 11:29:01,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 11:29:01,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 11:29:01,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:29:00" (1/3) ... [2021-01-06 11:29:01,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714d16e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:29:01, skipping insertion in model container [2021-01-06 11:29:01,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:29:01" (2/3) ... [2021-01-06 11:29:01,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714d16e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:29:01, skipping insertion in model container [2021-01-06 11:29:01,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:29:01" (3/3) ... [2021-01-06 11:29:01,905 INFO L111 eAbstractionObserver]: Analyzing ICFG ss4.c [2021-01-06 11:29:01,923 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 11:29:01,941 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 11:29:02,018 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 11:29:02,071 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 11:29:02,071 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 11:29:02,072 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 11:29:02,072 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 11:29:02,072 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 11:29:02,072 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 11:29:02,072 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 11:29:02,073 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 11:29:02,089 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2021-01-06 11:29:02,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 11:29:02,096 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:02,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:02,098 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:02,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:02,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1202110748, now seen corresponding path program 1 times [2021-01-06 11:29:02,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:02,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93605507] [2021-01-06 11:29:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:29:02,370 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 11:29:02,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93605507] [2021-01-06 11:29:02,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:29:02,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 11:29:02,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991696144] [2021-01-06 11:29:02,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 11:29:02,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:02,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 11:29:02,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 11:29:02,412 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2021-01-06 11:29:02,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:02,441 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2021-01-06 11:29:02,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 11:29:02,443 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2021-01-06 11:29:02,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:02,464 INFO L225 Difference]: With dead ends: 44 [2021-01-06 11:29:02,465 INFO L226 Difference]: Without dead ends: 20 [2021-01-06 11:29:02,470 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 11:29:02,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-01-06 11:29:02,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-01-06 11:29:02,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-01-06 11:29:02,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-01-06 11:29:02,519 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 15 [2021-01-06 11:29:02,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:02,520 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-01-06 11:29:02,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 11:29:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-01-06 11:29:02,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 11:29:02,522 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:02,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:02,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 11:29:02,524 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:02,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:02,529 INFO L82 PathProgramCache]: Analyzing trace with hash -944124056, now seen corresponding path program 1 times [2021-01-06 11:29:02,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:02,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571537895] [2021-01-06 11:29:02,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:29:02,693 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 11:29:02,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571537895] [2021-01-06 11:29:02,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:29:02,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 11:29:02,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141832126] [2021-01-06 11:29:02,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 11:29:02,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:02,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 11:29:02,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 11:29:02,699 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 4 states. [2021-01-06 11:29:02,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:02,839 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2021-01-06 11:29:02,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 11:29:02,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2021-01-06 11:29:02,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:02,841 INFO L225 Difference]: With dead ends: 41 [2021-01-06 11:29:02,841 INFO L226 Difference]: Without dead ends: 28 [2021-01-06 11:29:02,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 11:29:02,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-01-06 11:29:02,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2021-01-06 11:29:02,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-01-06 11:29:02,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-01-06 11:29:02,851 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2021-01-06 11:29:02,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:02,851 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-01-06 11:29:02,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 11:29:02,852 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-01-06 11:29:02,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 11:29:02,853 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:02,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:02,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 11:29:02,854 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:02,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:02,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1401448688, now seen corresponding path program 1 times [2021-01-06 11:29:02,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:02,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502728075] [2021-01-06 11:29:02,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:02,899 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:02,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291467551] [2021-01-06 11:29:02,900 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 11:29:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:29:03,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 33 conjunts are in the unsatisfiable core [2021-01-06 11:29:03,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:03,179 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 11:29:03,192 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:03,205 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:03,217 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 11 treesize of output 7 [2021-01-06 11:29:03,219 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:03,232 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:03,234 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 11:29:03,234 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2021-01-06 11:29:03,289 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-01-06 11:29:03,295 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:03,312 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:03,315 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:03,315 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2021-01-06 11:29:03,488 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-01-06 11:29:03,492 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:03,508 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:03,509 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:03,510 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:29 [2021-01-06 11:29:03,647 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 23 [2021-01-06 11:29:03,650 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:03,664 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:03,687 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:03,689 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:31 [2021-01-06 11:29:03,793 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-01-06 11:29:03,798 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:03,815 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:03,817 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:03,817 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:28 [2021-01-06 11:29:03,928 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-01-06 11:29:03,932 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:03,943 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:03,954 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 11:29:03,955 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:46, output treesize:29 [2021-01-06 11:29:04,168 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:04,190 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:04,197 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:04,230 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:04,235 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:04,255 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:04,277 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:29:04,326 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 11:29:04,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502728075] [2021-01-06 11:29:04,327 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:04,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291467551] [2021-01-06 11:29:04,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:04,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-01-06 11:29:04,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052406268] [2021-01-06 11:29:04,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 11:29:04,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:04,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 11:29:04,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-01-06 11:29:04,336 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 15 states. [2021-01-06 11:29:05,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:05,232 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2021-01-06 11:29:05,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 11:29:05,233 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 23 [2021-01-06 11:29:05,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:05,234 INFO L225 Difference]: With dead ends: 43 [2021-01-06 11:29:05,234 INFO L226 Difference]: Without dead ends: 39 [2021-01-06 11:29:05,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2021-01-06 11:29:05,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-01-06 11:29:05,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2021-01-06 11:29:05,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-01-06 11:29:05,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2021-01-06 11:29:05,245 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 23 [2021-01-06 11:29:05,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:05,245 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-01-06 11:29:05,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 11:29:05,246 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2021-01-06 11:29:05,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 11:29:05,247 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:05,247 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:05,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-06 11:29:05,462 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:05,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:05,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1774307726, now seen corresponding path program 2 times [2021-01-06 11:29:05,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:05,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767374847] [2021-01-06 11:29:05,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:05,509 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:05,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2041296507] [2021-01-06 11:29:05,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:05,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:29:05,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:05,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-06 11:29:05,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:05,665 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 11:29:05,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767374847] [2021-01-06 11:29:05,666 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:05,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041296507] [2021-01-06 11:29:05,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:05,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-01-06 11:29:05,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114221380] [2021-01-06 11:29:05,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 11:29:05,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:05,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 11:29:05,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-06 11:29:05,670 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 7 states. [2021-01-06 11:29:05,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:05,849 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2021-01-06 11:29:05,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 11:29:05,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2021-01-06 11:29:05,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:05,851 INFO L225 Difference]: With dead ends: 79 [2021-01-06 11:29:05,851 INFO L226 Difference]: Without dead ends: 53 [2021-01-06 11:29:05,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-01-06 11:29:05,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-01-06 11:29:05,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 38. [2021-01-06 11:29:05,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-01-06 11:29:05,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2021-01-06 11:29:05,862 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 25 [2021-01-06 11:29:05,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:05,862 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-01-06 11:29:05,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 11:29:05,862 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2021-01-06 11:29:05,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 11:29:05,863 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:05,864 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:06,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:06,078 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:06,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:06,080 INFO L82 PathProgramCache]: Analyzing trace with hash 119582130, now seen corresponding path program 3 times [2021-01-06 11:29:06,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:06,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714974780] [2021-01-06 11:29:06,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:06,103 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:06,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323411428] [2021-01-06 11:29:06,104 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 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 11:29:06,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-01-06 11:29:06,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:06,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-06 11:29:06,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 11:29:06,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714974780] [2021-01-06 11:29:06,280 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:06,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323411428] [2021-01-06 11:29:06,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:06,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-01-06 11:29:06,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251599766] [2021-01-06 11:29:06,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 11:29:06,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:06,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 11:29:06,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-06 11:29:06,282 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 7 states. [2021-01-06 11:29:06,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:06,426 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2021-01-06 11:29:06,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 11:29:06,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2021-01-06 11:29:06,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:06,427 INFO L225 Difference]: With dead ends: 47 [2021-01-06 11:29:06,427 INFO L226 Difference]: Without dead ends: 35 [2021-01-06 11:29:06,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-01-06 11:29:06,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-01-06 11:29:06,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2021-01-06 11:29:06,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-01-06 11:29:06,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2021-01-06 11:29:06,434 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 25 [2021-01-06 11:29:06,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:06,434 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2021-01-06 11:29:06,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 11:29:06,435 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2021-01-06 11:29:06,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-06 11:29:06,436 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:06,436 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:06,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:06,652 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:06,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:06,653 INFO L82 PathProgramCache]: Analyzing trace with hash 666081912, now seen corresponding path program 4 times [2021-01-06 11:29:06,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:06,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794778692] [2021-01-06 11:29:06,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:06,681 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:06,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483837078] [2021-01-06 11:29:06,681 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:06,749 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:29:06,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:06,752 WARN L261 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 41 conjunts are in the unsatisfiable core [2021-01-06 11:29:06,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:06,775 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-01-06 11:29:06,776 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:06,783 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:06,785 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:06,785 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2021-01-06 11:29:06,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:06,810 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-01-06 11:29:06,813 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:06,823 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:06,824 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:06,824 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2021-01-06 11:29:06,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:06,886 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:06,887 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 56 [2021-01-06 11:29:06,891 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:06,929 INFO L625 ElimStorePlain]: treesize reduction 20, result has 64.9 percent of original size [2021-01-06 11:29:06,930 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:06,931 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2021-01-06 11:29:07,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:07,106 INFO L348 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2021-01-06 11:29:07,107 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 72 [2021-01-06 11:29:07,113 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,150 INFO L625 ElimStorePlain]: treesize reduction 40, result has 53.5 percent of original size [2021-01-06 11:29:07,152 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,152 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:46 [2021-01-06 11:29:07,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:07,248 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-01-06 11:29:07,249 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 35 [2021-01-06 11:29:07,253 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,271 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:07,272 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,273 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:43 [2021-01-06 11:29:07,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:07,476 INFO L348 Elim1Store]: treesize reduction 10, result has 91.0 percent of original size [2021-01-06 11:29:07,477 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 5 case distinctions, treesize of input 61 treesize of output 132 [2021-01-06 11:29:07,487 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,566 INFO L625 ElimStorePlain]: treesize reduction 96, result has 33.3 percent of original size [2021-01-06 11:29:07,569 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,569 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:48 [2021-01-06 11:29:07,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:07,695 INFO L348 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-01-06 11:29:07,696 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 2 case distinctions, treesize of input 55 treesize of output 37 [2021-01-06 11:29:07,699 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,719 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:07,721 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,721 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:66, output treesize:45 [2021-01-06 11:29:07,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:07,801 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-01-06 11:29:07,802 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 35 [2021-01-06 11:29:07,805 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,823 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:07,824 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,825 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:42 [2021-01-06 11:29:07,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:07,915 INFO L348 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2021-01-06 11:29:07,916 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 72 [2021-01-06 11:29:07,919 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,960 INFO L625 ElimStorePlain]: treesize reduction 28, result has 62.2 percent of original size [2021-01-06 11:29:07,961 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,962 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:46 [2021-01-06 11:29:08,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:08,129 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-01-06 11:29:08,130 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 35 [2021-01-06 11:29:08,134 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:08,147 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:08,154 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 11:29:08,154 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:62, output treesize:55 [2021-01-06 11:29:08,397 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:08,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:08,433 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:08,440 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:29:08,464 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:08,469 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:29:08,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:29:08,552 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 11:29:08,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794778692] [2021-01-06 11:29:08,558 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:08,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483837078] [2021-01-06 11:29:08,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:08,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2021-01-06 11:29:08,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855205272] [2021-01-06 11:29:08,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-01-06 11:29:08,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:08,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-01-06 11:29:08,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2021-01-06 11:29:08,563 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 21 states. [2021-01-06 11:29:10,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:10,194 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2021-01-06 11:29:10,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-06 11:29:10,195 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 31 [2021-01-06 11:29:10,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:10,196 INFO L225 Difference]: With dead ends: 57 [2021-01-06 11:29:10,196 INFO L226 Difference]: Without dead ends: 53 [2021-01-06 11:29:10,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-01-06 11:29:10,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-01-06 11:29:10,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2021-01-06 11:29:10,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-01-06 11:29:10,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2021-01-06 11:29:10,209 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 31 [2021-01-06 11:29:10,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:10,210 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2021-01-06 11:29:10,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-01-06 11:29:10,210 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2021-01-06 11:29:10,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 11:29:10,211 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:10,211 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:10,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:10,427 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:10,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:10,428 INFO L82 PathProgramCache]: Analyzing trace with hash 207824378, now seen corresponding path program 5 times [2021-01-06 11:29:10,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:10,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887929238] [2021-01-06 11:29:10,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:10,471 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:10,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526299261] [2021-01-06 11:29:10,471 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:10,606 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 11:29:10,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:10,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 11:29:10,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:10,732 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 11:29:10,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887929238] [2021-01-06 11:29:10,733 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:10,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526299261] [2021-01-06 11:29:10,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:10,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 11:29:10,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045665910] [2021-01-06 11:29:10,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 11:29:10,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:10,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 11:29:10,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-06 11:29:10,737 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand 9 states. [2021-01-06 11:29:11,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:11,035 INFO L93 Difference]: Finished difference Result 101 states and 112 transitions. [2021-01-06 11:29:11,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 11:29:11,036 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2021-01-06 11:29:11,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:11,038 INFO L225 Difference]: With dead ends: 101 [2021-01-06 11:29:11,038 INFO L226 Difference]: Without dead ends: 65 [2021-01-06 11:29:11,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 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 11:29:11,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-01-06 11:29:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 50. [2021-01-06 11:29:11,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2021-01-06 11:29:11,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2021-01-06 11:29:11,051 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 33 [2021-01-06 11:29:11,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:11,052 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2021-01-06 11:29:11,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 11:29:11,052 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2021-01-06 11:29:11,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 11:29:11,054 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:11,054 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:11,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-01-06 11:29:11,264 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:11,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:11,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1285815610, now seen corresponding path program 6 times [2021-01-06 11:29:11,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:11,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496662851] [2021-01-06 11:29:11,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:11,297 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:11,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286346239] [2021-01-06 11:29:11,298 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:11,418 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-01-06 11:29:11,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:11,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 11:29:11,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:11,562 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 11:29:11,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496662851] [2021-01-06 11:29:11,563 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:11,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286346239] [2021-01-06 11:29:11,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:11,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 11:29:11,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470409540] [2021-01-06 11:29:11,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 11:29:11,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:11,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 11:29:11,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-06 11:29:11,566 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 9 states. [2021-01-06 11:29:11,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:11,795 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2021-01-06 11:29:11,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 11:29:11,796 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2021-01-06 11:29:11,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:11,797 INFO L225 Difference]: With dead ends: 59 [2021-01-06 11:29:11,797 INFO L226 Difference]: Without dead ends: 43 [2021-01-06 11:29:11,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 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 11:29:11,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-01-06 11:29:11,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2021-01-06 11:29:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-01-06 11:29:11,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2021-01-06 11:29:11,809 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 33 [2021-01-06 11:29:11,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:11,810 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2021-01-06 11:29:11,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 11:29:11,810 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2021-01-06 11:29:11,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-01-06 11:29:11,811 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:11,811 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:12,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:12,026 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:12,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:12,028 INFO L82 PathProgramCache]: Analyzing trace with hash 315843584, now seen corresponding path program 7 times [2021-01-06 11:29:12,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:12,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201179541] [2021-01-06 11:29:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:12,099 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:12,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [281868721] [2021-01-06 11:29:12,100 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:29:12,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 57 conjunts are in the unsatisfiable core [2021-01-06 11:29:12,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:12,256 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 11:29:12,259 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,267 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:12,271 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 11 treesize of output 7 [2021-01-06 11:29:12,273 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,283 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:12,284 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 11:29:12,285 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2021-01-06 11:29:12,315 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-01-06 11:29:12,318 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,333 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:12,335 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,337 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2021-01-06 11:29:12,422 INFO L348 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-01-06 11:29:12,423 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2021-01-06 11:29:12,425 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,443 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:12,445 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,445 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:41 [2021-01-06 11:29:12,565 INFO L348 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-01-06 11:29:12,565 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 47 treesize of output 52 [2021-01-06 11:29:12,568 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,585 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:12,586 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,586 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:60, output treesize:56 [2021-01-06 11:29:12,836 INFO L348 Elim1Store]: treesize reduction 32, result has 56.2 percent of original size [2021-01-06 11:29:12,839 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 98 [2021-01-06 11:29:12,844 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,896 INFO L625 ElimStorePlain]: treesize reduction 64, result has 45.8 percent of original size [2021-01-06 11:29:12,898 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,898 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:71, output treesize:54 [2021-01-06 11:29:13,080 INFO L348 Elim1Store]: treesize reduction 32, result has 56.2 percent of original size [2021-01-06 11:29:13,081 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 98 [2021-01-06 11:29:13,085 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:13,137 INFO L625 ElimStorePlain]: treesize reduction 52, result has 50.9 percent of original size [2021-01-06 11:29:13,138 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:13,139 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:54 [2021-01-06 11:29:13,280 INFO L348 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-01-06 11:29:13,281 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 49 [2021-01-06 11:29:13,287 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:13,302 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:13,303 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:13,304 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:51 [2021-01-06 11:29:13,643 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-01-06 11:29:13,644 INFO L348 Elim1Store]: treesize reduction 32, result has 83.0 percent of original size [2021-01-06 11:29:13,644 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 70 treesize of output 190 [2021-01-06 11:29:13,651 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:13,732 INFO L625 ElimStorePlain]: treesize reduction 152, result has 29.0 percent of original size [2021-01-06 11:29:13,733 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:13,734 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:83, output treesize:62 [2021-01-06 11:29:14,060 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-01-06 11:29:14,061 INFO L348 Elim1Store]: treesize reduction 32, result has 83.0 percent of original size [2021-01-06 11:29:14,061 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 74 treesize of output 192 [2021-01-06 11:29:14,068 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,153 INFO L625 ElimStorePlain]: treesize reduction 156, result has 29.7 percent of original size [2021-01-06 11:29:14,155 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,155 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:87, output treesize:66 [2021-01-06 11:29:14,387 INFO L348 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2021-01-06 11:29:14,387 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 76 treesize of output 53 [2021-01-06 11:29:14,391 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,411 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:14,414 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,414 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:86, output treesize:61 [2021-01-06 11:29:14,517 INFO L348 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-01-06 11:29:14,517 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 51 [2021-01-06 11:29:14,520 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,542 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:14,543 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,544 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:62 [2021-01-06 11:29:14,687 INFO L348 Elim1Store]: treesize reduction 32, result has 56.2 percent of original size [2021-01-06 11:29:14,688 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 102 [2021-01-06 11:29:14,692 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,751 INFO L625 ElimStorePlain]: treesize reduction 64, result has 52.2 percent of original size [2021-01-06 11:29:14,753 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,753 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:87, output treesize:70 [2021-01-06 11:29:15,036 INFO L348 Elim1Store]: treesize reduction 29, result has 67.0 percent of original size [2021-01-06 11:29:15,037 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 125 [2021-01-06 11:29:15,041 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:15,099 INFO L625 ElimStorePlain]: treesize reduction 34, result has 64.9 percent of original size [2021-01-06 11:29:15,100 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:15,101 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:63 [2021-01-06 11:29:15,345 INFO L348 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-01-06 11:29:15,346 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 49 [2021-01-06 11:29:15,349 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:15,369 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:15,373 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 11:29:15,374 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:74, output treesize:51 [2021-01-06 11:29:15,606 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:15,613 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:15,618 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:15,629 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:15,647 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:15,652 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:29:15,672 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:29:15,748 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:29:15,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201179541] [2021-01-06 11:29:15,748 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:15,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281868721] [2021-01-06 11:29:15,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:15,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2021-01-06 11:29:15,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826191614] [2021-01-06 11:29:15,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-01-06 11:29:15,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:15,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-01-06 11:29:15,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2021-01-06 11:29:15,751 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 31 states. [2021-01-06 11:29:19,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:19,598 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2021-01-06 11:29:19,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-01-06 11:29:19,599 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 39 [2021-01-06 11:29:19,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:19,601 INFO L225 Difference]: With dead ends: 71 [2021-01-06 11:29:19,601 INFO L226 Difference]: Without dead ends: 67 [2021-01-06 11:29:19,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=285, Invalid=3137, Unknown=0, NotChecked=0, Total=3422 [2021-01-06 11:29:19,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-01-06 11:29:19,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2021-01-06 11:29:19,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-01-06 11:29:19,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2021-01-06 11:29:19,615 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 39 [2021-01-06 11:29:19,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:19,616 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2021-01-06 11:29:19,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-01-06 11:29:19,616 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2021-01-06 11:29:19,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-06 11:29:19,617 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:19,617 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:19,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:19,831 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:19,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:19,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1363759742, now seen corresponding path program 8 times [2021-01-06 11:29:19,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:19,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241903939] [2021-01-06 11:29:19,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:19,860 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:19,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [68653953] [2021-01-06 11:29:19,861 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 11:29:19,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:29:19,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:19,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjunts are in the unsatisfiable core [2021-01-06 11:29:19,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:20,072 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 11:29:20,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241903939] [2021-01-06 11:29:20,073 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:20,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68653953] [2021-01-06 11:29:20,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:20,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-01-06 11:29:20,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504733731] [2021-01-06 11:29:20,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 11:29:20,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:20,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 11:29:20,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-01-06 11:29:20,075 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand 11 states. [2021-01-06 11:29:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:20,373 INFO L93 Difference]: Finished difference Result 123 states and 134 transitions. [2021-01-06 11:29:20,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 11:29:20,374 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2021-01-06 11:29:20,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:20,375 INFO L225 Difference]: With dead ends: 123 [2021-01-06 11:29:20,375 INFO L226 Difference]: Without dead ends: 77 [2021-01-06 11:29:20,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2021-01-06 11:29:20,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-01-06 11:29:20,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 62. [2021-01-06 11:29:20,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2021-01-06 11:29:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2021-01-06 11:29:20,390 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 41 [2021-01-06 11:29:20,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:20,390 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2021-01-06 11:29:20,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 11:29:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2021-01-06 11:29:20,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-06 11:29:20,391 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:20,391 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:20,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-06 11:29:20,606 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:20,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:20,607 INFO L82 PathProgramCache]: Analyzing trace with hash -702683966, now seen corresponding path program 9 times [2021-01-06 11:29:20,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:20,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120020169] [2021-01-06 11:29:20,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:20,642 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:20,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1583838782] [2021-01-06 11:29:20,642 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 11:29:20,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-01-06 11:29:20,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:20,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjunts are in the unsatisfiable core [2021-01-06 11:29:20,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:21,038 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 11:29:21,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120020169] [2021-01-06 11:29:21,039 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:21,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583838782] [2021-01-06 11:29:21,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:21,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-01-06 11:29:21,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051444553] [2021-01-06 11:29:21,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 11:29:21,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:21,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 11:29:21,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-01-06 11:29:21,042 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 11 states. [2021-01-06 11:29:21,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:21,330 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2021-01-06 11:29:21,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 11:29:21,330 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2021-01-06 11:29:21,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:21,332 INFO L225 Difference]: With dead ends: 71 [2021-01-06 11:29:21,332 INFO L226 Difference]: Without dead ends: 51 [2021-01-06 11:29:21,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2021-01-06 11:29:21,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-01-06 11:29:21,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2021-01-06 11:29:21,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-01-06 11:29:21,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2021-01-06 11:29:21,342 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 41 [2021-01-06 11:29:21,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:21,342 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2021-01-06 11:29:21,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 11:29:21,342 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2021-01-06 11:29:21,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-06 11:29:21,343 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:21,343 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:21,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:21,549 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:21,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:21,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1719679608, now seen corresponding path program 10 times [2021-01-06 11:29:21,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:21,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137542056] [2021-01-06 11:29:21,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:21,582 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:21,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852441663] [2021-01-06 11:29:21,583 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 11:29:21,660 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:29:21,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:21,662 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 65 conjunts are in the unsatisfiable core [2021-01-06 11:29:21,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:21,681 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-01-06 11:29:21,682 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:21,691 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:21,693 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:21,693 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2021-01-06 11:29:21,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:21,717 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-01-06 11:29:21,720 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:21,728 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:21,729 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:21,729 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2021-01-06 11:29:21,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:21,793 INFO L348 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-01-06 11:29:21,794 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2021-01-06 11:29:21,800 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:21,817 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:21,819 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:21,819 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:39 [2021-01-06 11:29:21,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:21,919 INFO L348 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-01-06 11:29:21,920 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 47 treesize of output 52 [2021-01-06 11:29:21,927 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:21,953 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:21,954 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:21,954 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2021-01-06 11:29:22,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:22,091 INFO L348 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-01-06 11:29:22,092 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 54 [2021-01-06 11:29:22,094 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:22,124 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:22,125 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:22,125 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:54, output treesize:50 [2021-01-06 11:29:22,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:22,309 INFO L348 Elim1Store]: treesize reduction 66, result has 45.5 percent of original size [2021-01-06 11:29:22,310 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 124 [2021-01-06 11:29:22,313 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:22,388 INFO L625 ElimStorePlain]: treesize reduction 68, result has 48.9 percent of original size [2021-01-06 11:29:22,388 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:22,389 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:65 [2021-01-06 11:29:22,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:22,656 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2021-01-06 11:29:22,657 INFO L348 Elim1Store]: treesize reduction 53, result has 62.4 percent of original size [2021-01-06 11:29:22,658 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 162 [2021-01-06 11:29:22,671 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:22,731 INFO L625 ElimStorePlain]: treesize reduction 126, result has 39.4 percent of original size [2021-01-06 11:29:22,732 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:22,732 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:92, output treesize:82 [2021-01-06 11:29:22,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,030 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-06 11:29:23,031 INFO L348 Elim1Store]: treesize reduction 88, result has 60.2 percent of original size [2021-01-06 11:29:23,032 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 98 treesize of output 223 [2021-01-06 11:29:23,043 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,118 INFO L625 ElimStorePlain]: treesize reduction 168, result has 30.9 percent of original size [2021-01-06 11:29:23,119 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,120 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:75 [2021-01-06 11:29:23,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,373 INFO L348 Elim1Store]: treesize reduction 66, result has 45.5 percent of original size [2021-01-06 11:29:23,374 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 82 treesize of output 127 [2021-01-06 11:29:23,379 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,451 INFO L625 ElimStorePlain]: treesize reduction 97, result has 48.7 percent of original size [2021-01-06 11:29:23,452 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,453 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:92 [2021-01-06 11:29:23,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,248 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-06 11:29:24,250 INFO L348 Elim1Store]: treesize reduction 66, result has 76.2 percent of original size [2021-01-06 11:29:24,250 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 106 treesize of output 253 [2021-01-06 11:29:24,262 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:24,372 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 39 [2021-01-06 11:29:24,373 INFO L625 ElimStorePlain]: treesize reduction 206, result has 25.9 percent of original size [2021-01-06 11:29:24,374 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:24,374 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:120, output treesize:72 [2021-01-06 11:29:24,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,893 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2021-01-06 11:29:24,894 INFO L348 Elim1Store]: treesize reduction 139, result has 56.2 percent of original size [2021-01-06 11:29:24,894 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 88 treesize of output 217 [2021-01-06 11:29:24,901 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,013 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2021-01-06 11:29:25,014 INFO L625 ElimStorePlain]: treesize reduction 164, result has 36.4 percent of original size [2021-01-06 11:29:25,015 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,015 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:102, output treesize:94 [2021-01-06 11:29:25,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,533 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-06 11:29:25,533 INFO L348 Elim1Store]: treesize reduction 66, result has 76.2 percent of original size [2021-01-06 11:29:25,534 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 87 treesize of output 250 [2021-01-06 11:29:25,545 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,641 INFO L625 ElimStorePlain]: treesize reduction 188, result has 23.6 percent of original size [2021-01-06 11:29:25,642 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,643 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:101, output treesize:58 [2021-01-06 11:29:25,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,942 INFO L348 Elim1Store]: treesize reduction 144, result has 15.3 percent of original size [2021-01-06 11:29:25,943 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 67 treesize of output 59 [2021-01-06 11:29:25,947 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,975 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:25,976 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,976 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:53 [2021-01-06 11:29:26,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,115 INFO L348 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-01-06 11:29:26,116 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 57 [2021-01-06 11:29:26,118 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,151 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:26,154 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,154 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:56 [2021-01-06 11:29:26,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,348 INFO L348 Elim1Store]: treesize reduction 66, result has 45.5 percent of original size [2021-01-06 11:29:26,349 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 124 [2021-01-06 11:29:26,355 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,425 INFO L625 ElimStorePlain]: treesize reduction 82, result has 43.8 percent of original size [2021-01-06 11:29:26,426 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,426 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:81, output treesize:64 [2021-01-06 11:29:26,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,781 INFO L348 Elim1Store]: treesize reduction 66, result has 45.5 percent of original size [2021-01-06 11:29:26,781 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 124 [2021-01-06 11:29:26,786 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,865 INFO L625 ElimStorePlain]: treesize reduction 96, result has 45.5 percent of original size [2021-01-06 11:29:26,870 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,870 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:85, output treesize:80 [2021-01-06 11:29:27,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,357 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2021-01-06 11:29:27,358 INFO L348 Elim1Store]: treesize reduction 83, result has 57.7 percent of original size [2021-01-06 11:29:27,359 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 93 treesize of output 198 [2021-01-06 11:29:27,368 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:27,460 INFO L625 ElimStorePlain]: treesize reduction 232, result has 24.9 percent of original size [2021-01-06 11:29:27,462 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:27,462 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:77 [2021-01-06 11:29:27,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,796 INFO L348 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-01-06 11:29:27,796 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 62 [2021-01-06 11:29:27,798 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:27,827 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:27,831 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 11:29:27,831 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:95, output treesize:74 [2021-01-06 11:29:28,066 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:28,069 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:28,073 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:28,076 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:29:28,088 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:28,091 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:29:28,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:29:28,289 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 11:29:28,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137542056] [2021-01-06 11:29:28,290 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:28,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852441663] [2021-01-06 11:29:28,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:28,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2021-01-06 11:29:28,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966667306] [2021-01-06 11:29:28,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-01-06 11:29:28,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:28,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-01-06 11:29:28,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1251, Unknown=0, NotChecked=0, Total=1332 [2021-01-06 11:29:28,294 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand 37 states. [2021-01-06 11:29:31,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:31,559 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2021-01-06 11:29:31,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-06 11:29:31,560 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 47 [2021-01-06 11:29:31,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:31,560 INFO L225 Difference]: With dead ends: 75 [2021-01-06 11:29:31,561 INFO L226 Difference]: Without dead ends: 71 [2021-01-06 11:29:31,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=94, Invalid=1466, Unknown=0, NotChecked=0, Total=1560 [2021-01-06 11:29:31,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-01-06 11:29:31,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2021-01-06 11:29:31,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-01-06 11:29:31,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2021-01-06 11:29:31,597 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 47 [2021-01-06 11:29:31,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:31,597 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2021-01-06 11:29:31,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2021-01-06 11:29:31,597 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2021-01-06 11:29:31,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-06 11:29:31,601 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:31,601 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:31,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:31,819 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:31,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:31,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1003539722, now seen corresponding path program 11 times [2021-01-06 11:29:31,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:31,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857900927] [2021-01-06 11:29:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:31,868 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:31,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371329001] [2021-01-06 11:29:31,868 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 11:29:32,554 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-01-06 11:29:32,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:32,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 11:29:32,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:32,739 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 11:29:32,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857900927] [2021-01-06 11:29:32,739 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:32,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371329001] [2021-01-06 11:29:32,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:32,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-01-06 11:29:32,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019191955] [2021-01-06 11:29:32,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-06 11:29:32,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:32,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-06 11:29:32,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-01-06 11:29:32,741 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 13 states. [2021-01-06 11:29:33,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:33,129 INFO L93 Difference]: Finished difference Result 135 states and 145 transitions. [2021-01-06 11:29:33,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 11:29:33,130 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 49 [2021-01-06 11:29:33,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:33,131 INFO L225 Difference]: With dead ends: 135 [2021-01-06 11:29:33,131 INFO L226 Difference]: Without dead ends: 78 [2021-01-06 11:29:33,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2021-01-06 11:29:33,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-01-06 11:29:33,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 64. [2021-01-06 11:29:33,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-01-06 11:29:33,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2021-01-06 11:29:33,144 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 49 [2021-01-06 11:29:33,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:33,144 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2021-01-06 11:29:33,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-01-06 11:29:33,144 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2021-01-06 11:29:33,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-06 11:29:33,145 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:33,145 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:33,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-06 11:29:33,359 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:33,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:33,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1391362764, now seen corresponding path program 12 times [2021-01-06 11:29:33,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:33,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595146718] [2021-01-06 11:29:33,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:33,386 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:33,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [78005263] [2021-01-06 11:29:33,386 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 11:29:33,689 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-01-06 11:29:33,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:33,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 11:29:33,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:33,869 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-01-06 11:29:33,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595146718] [2021-01-06 11:29:33,870 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:33,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78005263] [2021-01-06 11:29:33,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:33,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-01-06 11:29:33,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764274037] [2021-01-06 11:29:33,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-06 11:29:33,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:33,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-06 11:29:33,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-01-06 11:29:33,873 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 13 states. [2021-01-06 11:29:34,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:34,230 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2021-01-06 11:29:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 11:29:34,231 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2021-01-06 11:29:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:34,232 INFO L225 Difference]: With dead ends: 73 [2021-01-06 11:29:34,232 INFO L226 Difference]: Without dead ends: 59 [2021-01-06 11:29:34,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2021-01-06 11:29:34,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-01-06 11:29:34,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2021-01-06 11:29:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-01-06 11:29:34,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2021-01-06 11:29:34,242 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 51 [2021-01-06 11:29:34,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:34,242 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2021-01-06 11:29:34,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-01-06 11:29:34,242 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2021-01-06 11:29:34,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-06 11:29:34,243 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:34,243 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:34,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-01-06 11:29:34,457 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:34,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:34,458 INFO L82 PathProgramCache]: Analyzing trace with hash -162480368, now seen corresponding path program 13 times [2021-01-06 11:29:34,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:34,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162251123] [2021-01-06 11:29:34,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:34,496 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:34,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1653212986] [2021-01-06 11:29:34,496 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 11:29:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:29:34,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 81 conjunts are in the unsatisfiable core [2021-01-06 11:29:34,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:34,667 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 11:29:34,671 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:34,679 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:34,687 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 11 treesize of output 7 [2021-01-06 11:29:34,688 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:34,695 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:34,695 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 11:29:34,696 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2021-01-06 11:29:34,728 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-01-06 11:29:34,729 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:34,744 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:34,750 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:34,750 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2021-01-06 11:29:34,815 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:34,816 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 56 [2021-01-06 11:29:34,819 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:34,863 INFO L625 ElimStorePlain]: treesize reduction 20, result has 64.3 percent of original size [2021-01-06 11:29:34,864 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:34,864 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2021-01-06 11:29:34,961 INFO L348 Elim1Store]: treesize reduction 52, result has 45.8 percent of original size [2021-01-06 11:29:34,961 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 42 treesize of output 71 [2021-01-06 11:29:34,964 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:35,019 INFO L625 ElimStorePlain]: treesize reduction 20, result has 70.6 percent of original size [2021-01-06 11:29:35,020 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:35,020 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2021-01-06 11:29:35,254 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2021-01-06 11:29:35,254 INFO L348 Elim1Store]: treesize reduction 32, result has 77.5 percent of original size [2021-01-06 11:29:35,255 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 140 [2021-01-06 11:29:35,258 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:35,346 INFO L625 ElimStorePlain]: treesize reduction 64, result has 45.8 percent of original size [2021-01-06 11:29:35,347 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:35,347 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:58, output treesize:54 [2021-01-06 11:29:35,652 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 42 [2021-01-06 11:29:35,652 INFO L348 Elim1Store]: treesize reduction 114, result has 51.7 percent of original size [2021-01-06 11:29:35,653 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 155 [2021-01-06 11:29:35,657 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:35,756 INFO L625 ElimStorePlain]: treesize reduction 64, result has 51.9 percent of original size [2021-01-06 11:29:35,757 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:35,757 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:73, output treesize:69 [2021-01-06 11:29:36,167 INFO L348 Elim1Store]: treesize reduction 112, result has 38.1 percent of original size [2021-01-06 11:29:36,167 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 76 treesize of output 150 [2021-01-06 11:29:36,172 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:36,247 INFO L625 ElimStorePlain]: treesize reduction 112, result has 39.1 percent of original size [2021-01-06 11:29:36,248 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:36,248 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:72 [2021-01-06 11:29:36,520 INFO L348 Elim1Store]: treesize reduction 112, result has 38.1 percent of original size [2021-01-06 11:29:36,521 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 150 [2021-01-06 11:29:36,530 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:36,622 INFO L625 ElimStorePlain]: treesize reduction 96, result has 47.8 percent of original size [2021-01-06 11:29:36,625 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:36,626 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:88 [2021-01-06 11:29:36,919 INFO L348 Elim1Store]: treesize reduction 112, result has 38.1 percent of original size [2021-01-06 11:29:36,919 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 96 treesize of output 154 [2021-01-06 11:29:36,924 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:37,001 INFO L625 ElimStorePlain]: treesize reduction 88, result has 46.3 percent of original size [2021-01-06 11:29:37,002 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:37,002 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:76 [2021-01-06 11:29:37,337 INFO L348 Elim1Store]: treesize reduction 112, result has 38.1 percent of original size [2021-01-06 11:29:37,338 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 152 [2021-01-06 11:29:37,347 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:37,462 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2021-01-06 11:29:37,463 INFO L625 ElimStorePlain]: treesize reduction 106, result has 43.3 percent of original size [2021-01-06 11:29:37,464 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:37,465 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:81 [2021-01-06 11:29:37,841 INFO L348 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2021-01-06 11:29:37,842 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 89 treesize of output 74 [2021-01-06 11:29:37,847 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:37,896 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:37,898 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:37,898 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:82 [2021-01-06 11:29:38,689 WARN L197 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-01-06 11:29:38,690 INFO L348 Elim1Store]: treesize reduction 112, result has 70.4 percent of original size [2021-01-06 11:29:38,691 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 101 treesize of output 309 [2021-01-06 11:29:38,701 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:38,852 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2021-01-06 11:29:38,853 INFO L625 ElimStorePlain]: treesize reduction 234, result has 22.5 percent of original size [2021-01-06 11:29:38,854 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:38,855 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:114, output treesize:68 [2021-01-06 11:29:39,608 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 64 [2021-01-06 11:29:39,609 INFO L348 Elim1Store]: treesize reduction 190, result has 55.1 percent of original size [2021-01-06 11:29:39,610 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 85 treesize of output 271 [2021-01-06 11:29:39,625 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:39,746 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 43 [2021-01-06 11:29:39,747 INFO L625 ElimStorePlain]: treesize reduction 208, result has 27.0 percent of original size [2021-01-06 11:29:39,747 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:39,747 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:98, output treesize:77 [2021-01-06 11:29:40,392 WARN L197 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-01-06 11:29:40,392 INFO L348 Elim1Store]: treesize reduction 112, result has 70.4 percent of original size [2021-01-06 11:29:40,393 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 86 treesize of output 306 [2021-01-06 11:29:40,400 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:40,509 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2021-01-06 11:29:40,509 INFO L625 ElimStorePlain]: treesize reduction 236, result has 21.9 percent of original size [2021-01-06 11:29:40,510 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:40,511 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:66 [2021-01-06 11:29:41,188 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-01-06 11:29:41,189 INFO L348 Elim1Store]: treesize reduction 112, result has 70.4 percent of original size [2021-01-06 11:29:41,189 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 80 treesize of output 304 [2021-01-06 11:29:41,197 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:41,340 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2021-01-06 11:29:41,341 INFO L625 ElimStorePlain]: treesize reduction 236, result has 21.9 percent of original size [2021-01-06 11:29:41,341 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:41,342 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:66 [2021-01-06 11:29:41,853 INFO L348 Elim1Store]: treesize reduction 218, result has 13.8 percent of original size [2021-01-06 11:29:41,853 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 76 treesize of output 71 [2021-01-06 11:29:41,858 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:41,893 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:41,894 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:41,894 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:86, output treesize:61 [2021-01-06 11:29:42,137 INFO L348 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2021-01-06 11:29:42,138 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 69 [2021-01-06 11:29:42,144 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:42,182 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:42,183 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:42,183 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:64 [2021-01-06 11:29:42,537 INFO L348 Elim1Store]: treesize reduction 112, result has 38.1 percent of original size [2021-01-06 11:29:42,538 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 76 treesize of output 150 [2021-01-06 11:29:42,543 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:42,639 INFO L625 ElimStorePlain]: treesize reduction 102, result has 38.6 percent of original size [2021-01-06 11:29:42,640 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:42,640 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:64 [2021-01-06 11:29:43,243 INFO L348 Elim1Store]: treesize reduction 112, result has 38.1 percent of original size [2021-01-06 11:29:43,243 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 76 treesize of output 150 [2021-01-06 11:29:43,248 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:43,353 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 43 [2021-01-06 11:29:43,354 INFO L625 ElimStorePlain]: treesize reduction 84, result has 46.8 percent of original size [2021-01-06 11:29:43,355 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:43,356 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:74 [2021-01-06 11:29:44,047 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 62 [2021-01-06 11:29:44,048 INFO L348 Elim1Store]: treesize reduction 129, result has 52.4 percent of original size [2021-01-06 11:29:44,048 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 87 treesize of output 237 [2021-01-06 11:29:44,054 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:44,161 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 43 [2021-01-06 11:29:44,161 INFO L625 ElimStorePlain]: treesize reduction 195, result has 30.6 percent of original size [2021-01-06 11:29:44,162 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:44,162 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:86 [2021-01-06 11:29:44,762 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2021-01-06 11:29:44,762 INFO L348 Elim1Store]: treesize reduction 118, result has 59.2 percent of original size [2021-01-06 11:29:44,763 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 100 treesize of output 270 [2021-01-06 11:29:44,772 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:44,879 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 46 [2021-01-06 11:29:44,880 INFO L625 ElimStorePlain]: treesize reduction 180, result has 34.8 percent of original size [2021-01-06 11:29:44,881 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:44,881 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:113, output treesize:96 [2021-01-06 11:29:45,376 INFO L348 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2021-01-06 11:29:45,377 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 95 treesize of output 76 [2021-01-06 11:29:45,379 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:45,413 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:45,416 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 11:29:45,417 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:105, output treesize:96 [2021-01-06 11:29:45,771 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:45,774 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:45,776 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:45,778 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:29:45,785 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:45,787 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:29:45,793 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:29:45,953 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:29:45,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162251123] [2021-01-06 11:29:45,954 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:45,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653212986] [2021-01-06 11:29:45,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:45,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2021-01-06 11:29:45,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028209422] [2021-01-06 11:29:45,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-01-06 11:29:45,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:45,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-01-06 11:29:45,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=2017, Unknown=0, NotChecked=0, Total=2162 [2021-01-06 11:29:45,957 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 47 states. [2021-01-06 11:29:48,577 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2021-01-06 11:29:48,851 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2021-01-06 11:29:49,300 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2021-01-06 11:29:49,633 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2021-01-06 11:29:49,967 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2021-01-06 11:29:50,301 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-01-06 11:29:50,601 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2021-01-06 11:29:51,790 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2021-01-06 11:29:52,104 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2021-01-06 11:29:52,531 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2021-01-06 11:29:52,937 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2021-01-06 11:29:53,311 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2021-01-06 11:29:53,963 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2021-01-06 11:29:58,264 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-01-06 11:29:58,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:58,910 INFO L93 Difference]: Finished difference Result 99 states and 105 transitions. [2021-01-06 11:29:58,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-01-06 11:29:58,911 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 55 [2021-01-06 11:29:58,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:58,912 INFO L225 Difference]: With dead ends: 99 [2021-01-06 11:29:58,912 INFO L226 Difference]: Without dead ends: 95 [2021-01-06 11:29:58,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1532 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=435, Invalid=7755, Unknown=0, NotChecked=0, Total=8190 [2021-01-06 11:29:58,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-01-06 11:29:58,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 85. [2021-01-06 11:29:58,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-01-06 11:29:58,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2021-01-06 11:29:58,930 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 55 [2021-01-06 11:29:58,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:58,930 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2021-01-06 11:29:58,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2021-01-06 11:29:58,931 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2021-01-06 11:29:58,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-06 11:29:58,931 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:58,931 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:59,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-01-06 11:29:59,132 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:59,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:59,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1471576942, now seen corresponding path program 14 times [2021-01-06 11:29:59,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:59,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955589578] [2021-01-06 11:29:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:59,165 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:59,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018859379] [2021-01-06 11:29:59,165 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 11:29:59,225 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:29:59,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:59,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 11:29:59,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-01-06 11:29:59,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955589578] [2021-01-06 11:29:59,421 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:59,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018859379] [2021-01-06 11:29:59,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:59,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-01-06 11:29:59,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519939166] [2021-01-06 11:29:59,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 11:29:59,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:59,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 11:29:59,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-01-06 11:29:59,423 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 15 states. [2021-01-06 11:29:59,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:59,878 INFO L93 Difference]: Finished difference Result 167 states and 178 transitions. [2021-01-06 11:29:59,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-06 11:29:59,879 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2021-01-06 11:29:59,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:59,880 INFO L225 Difference]: With dead ends: 167 [2021-01-06 11:29:59,880 INFO L226 Difference]: Without dead ends: 101 [2021-01-06 11:29:59,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2021-01-06 11:29:59,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-01-06 11:29:59,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 86. [2021-01-06 11:29:59,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2021-01-06 11:29:59,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-01-06 11:29:59,893 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 57 [2021-01-06 11:29:59,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:59,893 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-01-06 11:29:59,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 11:29:59,894 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-01-06 11:29:59,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-06 11:29:59,894 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:59,895 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:30:00,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:30:00,111 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:30:00,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:30:00,112 INFO L82 PathProgramCache]: Analyzing trace with hash -178947118, now seen corresponding path program 15 times [2021-01-06 11:30:00,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:30:00,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497783846] [2021-01-06 11:30:00,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:30:00,148 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:30:00,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1331105944] [2021-01-06 11:30:00,150 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 11:30:00,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-01-06 11:30:00,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:30:00,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 11:30:00,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:30:00,994 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-01-06 11:30:00,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497783846] [2021-01-06 11:30:00,995 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:30:00,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331105944] [2021-01-06 11:30:00,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:30:00,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-01-06 11:30:00,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389257056] [2021-01-06 11:30:00,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 11:30:00,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:30:00,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 11:30:00,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-01-06 11:30:01,000 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 15 states. [2021-01-06 11:30:01,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:30:01,415 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2021-01-06 11:30:01,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 11:30:01,416 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2021-01-06 11:30:01,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:30:01,417 INFO L225 Difference]: With dead ends: 95 [2021-01-06 11:30:01,417 INFO L226 Difference]: Without dead ends: 67 [2021-01-06 11:30:01,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2021-01-06 11:30:01,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-01-06 11:30:01,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2021-01-06 11:30:01,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-01-06 11:30:01,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2021-01-06 11:30:01,426 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 57 [2021-01-06 11:30:01,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:30:01,426 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2021-01-06 11:30:01,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 11:30:01,426 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2021-01-06 11:30:01,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 11:30:01,427 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:30:01,427 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:30:01,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-01-06 11:30:01,641 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:30:01,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:30:01,641 INFO L82 PathProgramCache]: Analyzing trace with hash 434000024, now seen corresponding path program 16 times [2021-01-06 11:30:01,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:30:01,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91957771] [2021-01-06 11:30:01,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:30:01,664 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:30:01,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [436969351] [2021-01-06 11:30:01,665 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 11:30:01,744 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:30:01,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:30:01,747 WARN L261 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 89 conjunts are in the unsatisfiable core [2021-01-06 11:30:01,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:30:01,761 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-01-06 11:30:01,762 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:01,772 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:01,773 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:01,773 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2021-01-06 11:30:01,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:01,797 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-01-06 11:30:01,799 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:01,811 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:01,813 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:01,813 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2021-01-06 11:30:01,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:01,904 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:01,904 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 56 [2021-01-06 11:30:01,907 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:01,962 INFO L625 ElimStorePlain]: treesize reduction 20, result has 63.0 percent of original size [2021-01-06 11:30:01,963 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:01,963 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2021-01-06 11:30:02,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:02,121 INFO L348 Elim1Store]: treesize reduction 10, result has 87.7 percent of original size [2021-01-06 11:30:02,121 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 39 treesize of output 98 [2021-01-06 11:30:02,125 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:02,214 INFO L625 ElimStorePlain]: treesize reduction 42, result has 50.6 percent of original size [2021-01-06 11:30:02,215 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:02,215 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:43 [2021-01-06 11:30:02,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:02,438 INFO L348 Elim1Store]: treesize reduction 77, result has 51.9 percent of original size [2021-01-06 11:30:02,439 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 113 [2021-01-06 11:30:02,442 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:02,526 INFO L625 ElimStorePlain]: treesize reduction 42, result has 56.7 percent of original size [2021-01-06 11:30:02,528 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:02,528 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:55 [2021-01-06 11:30:02,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:02,809 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 37 [2021-01-06 11:30:02,810 INFO L348 Elim1Store]: treesize reduction 162, result has 37.0 percent of original size [2021-01-06 11:30:02,810 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 128 [2021-01-06 11:30:02,815 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:02,936 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2021-01-06 11:30:02,937 INFO L625 ElimStorePlain]: treesize reduction 42, result has 61.5 percent of original size [2021-01-06 11:30:02,939 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:02,939 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:71, output treesize:67 [2021-01-06 11:30:03,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:03,312 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 28 [2021-01-06 11:30:03,313 INFO L348 Elim1Store]: treesize reduction 236, result has 15.7 percent of original size [2021-01-06 11:30:03,313 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 64 treesize of output 78 [2021-01-06 11:30:03,316 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:03,381 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:03,383 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:03,383 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:72, output treesize:68 [2021-01-06 11:30:03,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:03,808 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 46 [2021-01-06 11:30:03,809 INFO L348 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2021-01-06 11:30:03,810 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 85 treesize of output 176 [2021-01-06 11:30:03,816 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:04,024 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2021-01-06 11:30:04,025 INFO L625 ElimStorePlain]: treesize reduction 90, result has 46.7 percent of original size [2021-01-06 11:30:04,025 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:04,026 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:79 [2021-01-06 11:30:04,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:04,560 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 46 [2021-01-06 11:30:04,561 INFO L348 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2021-01-06 11:30:04,561 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 89 treesize of output 176 [2021-01-06 11:30:04,568 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:04,767 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2021-01-06 11:30:04,769 INFO L625 ElimStorePlain]: treesize reduction 124, result has 43.4 percent of original size [2021-01-06 11:30:04,770 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:04,771 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:95 [2021-01-06 11:30:05,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:05,474 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 73 [2021-01-06 11:30:05,475 INFO L348 Elim1Store]: treesize reduction 187, result has 47.8 percent of original size [2021-01-06 11:30:05,476 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 280 [2021-01-06 11:30:05,484 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:05,673 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 48 [2021-01-06 11:30:05,673 INFO L625 ElimStorePlain]: treesize reduction 287, result has 24.1 percent of original size [2021-01-06 11:30:05,677 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:05,678 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:91 [2021-01-06 11:30:06,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:06,232 INFO L348 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2021-01-06 11:30:06,233 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 100 treesize of output 179 [2021-01-06 11:30:06,237 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:06,364 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 47 [2021-01-06 11:30:06,365 INFO L625 ElimStorePlain]: treesize reduction 139, result has 44.2 percent of original size [2021-01-06 11:30:06,367 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:06,367 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:110 [2021-01-06 11:30:06,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:07,023 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 73 [2021-01-06 11:30:07,023 INFO L348 Elim1Store]: treesize reduction 187, result has 47.8 percent of original size [2021-01-06 11:30:07,024 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 126 treesize of output 283 [2021-01-06 11:30:07,035 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:07,198 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 45 [2021-01-06 11:30:07,199 INFO L625 ElimStorePlain]: treesize reduction 370, result has 22.6 percent of original size [2021-01-06 11:30:07,200 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:07,200 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:137, output treesize:108 [2021-01-06 11:30:07,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:07,651 INFO L348 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-01-06 11:30:07,651 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 112 treesize of output 88 [2021-01-06 11:30:07,654 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:07,702 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:07,702 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:07,702 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:120, output treesize:97 [2021-01-06 11:30:08,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:08,854 WARN L197 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2021-01-06 11:30:08,855 INFO L348 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2021-01-06 11:30:08,855 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 118 treesize of output 367 [2021-01-06 11:30:08,867 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:09,077 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 46 [2021-01-06 11:30:09,078 INFO L625 ElimStorePlain]: treesize reduction 314, result has 21.7 percent of original size [2021-01-06 11:30:09,079 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:09,079 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:129, output treesize:87 [2021-01-06 11:30:09,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:10,320 WARN L197 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2021-01-06 11:30:10,322 INFO L348 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2021-01-06 11:30:10,322 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 101 treesize of output 366 [2021-01-06 11:30:10,330 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:10,612 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2021-01-06 11:30:10,613 INFO L625 ElimStorePlain]: treesize reduction 318, result has 22.2 percent of original size [2021-01-06 11:30:10,614 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:10,614 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:112, output treesize:91 [2021-01-06 11:30:11,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:12,350 WARN L197 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2021-01-06 11:30:12,352 INFO L348 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2021-01-06 11:30:12,352 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 107 treesize of output 368 [2021-01-06 11:30:12,360 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:12,643 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2021-01-06 11:30:12,644 INFO L625 ElimStorePlain]: treesize reduction 320, result has 23.3 percent of original size [2021-01-06 11:30:12,646 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:12,646 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:97 [2021-01-06 11:30:13,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:14,223 WARN L197 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2021-01-06 11:30:14,224 INFO L348 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2021-01-06 11:30:14,225 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 113 treesize of output 370 [2021-01-06 11:30:14,235 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:14,538 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 44 [2021-01-06 11:30:14,539 INFO L625 ElimStorePlain]: treesize reduction 322, result has 24.2 percent of original size [2021-01-06 11:30:14,540 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:14,541 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:124, output treesize:103 [2021-01-06 11:30:15,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:16,124 WARN L197 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 74 [2021-01-06 11:30:16,125 INFO L348 Elim1Store]: treesize reduction 243, result has 53.4 percent of original size [2021-01-06 11:30:16,126 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 122 treesize of output 329 [2021-01-06 11:30:16,133 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:16,402 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 43 [2021-01-06 11:30:16,403 INFO L625 ElimStorePlain]: treesize reduction 236, result has 24.4 percent of original size [2021-01-06 11:30:16,404 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:16,404 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:76 [2021-01-06 11:30:17,505 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-01-06 11:30:17,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:17,892 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 28 [2021-01-06 11:30:17,893 INFO L348 Elim1Store]: treesize reduction 304, result has 12.6 percent of original size [2021-01-06 11:30:17,894 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 85 treesize of output 83 [2021-01-06 11:30:17,899 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:18,028 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-01-06 11:30:18,029 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:18,031 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:18,031 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:68 [2021-01-06 11:30:18,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:18,625 INFO L348 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-01-06 11:30:18,626 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 71 treesize of output 81 [2021-01-06 11:30:18,629 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:18,713 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:18,714 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:18,714 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:71 [2021-01-06 11:30:19,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:19,341 INFO L348 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2021-01-06 11:30:19,342 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 85 treesize of output 176 [2021-01-06 11:30:19,347 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:19,466 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2021-01-06 11:30:19,467 INFO L625 ElimStorePlain]: treesize reduction 122, result has 38.1 percent of original size [2021-01-06 11:30:19,468 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:19,468 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:75 [2021-01-06 11:30:20,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:20,488 INFO L348 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2021-01-06 11:30:20,488 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 89 treesize of output 176 [2021-01-06 11:30:20,494 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:20,636 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2021-01-06 11:30:20,637 INFO L625 ElimStorePlain]: treesize reduction 130, result has 39.5 percent of original size [2021-01-06 11:30:20,638 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:20,639 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:85 [2021-01-06 11:30:21,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:21,966 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 73 [2021-01-06 11:30:21,967 INFO L348 Elim1Store]: treesize reduction 187, result has 47.8 percent of original size [2021-01-06 11:30:21,967 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 100 treesize of output 278 [2021-01-06 11:30:21,975 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:22,136 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 46 [2021-01-06 11:30:22,137 INFO L625 ElimStorePlain]: treesize reduction 256, result has 26.6 percent of original size [2021-01-06 11:30:22,138 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:22,138 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:93 [2021-01-06 11:30:23,497 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-01-06 11:30:23,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:23,632 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 46 [2021-01-06 11:30:23,634 INFO L348 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2021-01-06 11:30:23,635 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 100 treesize of output 179 [2021-01-06 11:30:23,643 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:23,808 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 45 [2021-01-06 11:30:23,809 INFO L625 ElimStorePlain]: treesize reduction 133, result has 45.7 percent of original size [2021-01-06 11:30:23,809 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:23,809 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:112 [2021-01-06 11:30:24,389 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-01-06 11:30:25,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:25,301 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 46 [2021-01-06 11:30:25,302 INFO L348 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2021-01-06 11:30:25,303 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 120 treesize of output 183 [2021-01-06 11:30:25,310 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:25,476 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2021-01-06 11:30:25,477 INFO L625 ElimStorePlain]: treesize reduction 137, result has 45.0 percent of original size [2021-01-06 11:30:25,477 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:25,477 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:131, output treesize:112 [2021-01-06 11:30:27,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:27,242 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 62 [2021-01-06 11:30:27,243 INFO L348 Elim1Store]: treesize reduction 129, result has 52.4 percent of original size [2021-01-06 11:30:27,243 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 129 treesize of output 245 [2021-01-06 11:30:27,252 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:27,418 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 46 [2021-01-06 11:30:27,419 INFO L625 ElimStorePlain]: treesize reduction 108, result has 45.7 percent of original size [2021-01-06 11:30:27,438 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 11:30:27,438 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:140, output treesize:91 [2021-01-06 11:30:29,761 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:30:29,763 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:30:29,764 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:30:29,768 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:30:29,773 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:30:29,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:30:29,779 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:30:30,256 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:30:30,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91957771] [2021-01-06 11:30:30,256 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:30:30,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436969351] [2021-01-06 11:30:30,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:30:30,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2021-01-06 11:30:30,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072962222] [2021-01-06 11:30:30,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-01-06 11:30:30,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:30:30,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-01-06 11:30:30,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=2642, Unknown=0, NotChecked=0, Total=2756 [2021-01-06 11:30:30,259 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 53 states. [2021-01-06 11:30:32,714 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2021-01-06 11:30:38,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:30:38,393 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2021-01-06 11:30:38,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-01-06 11:30:38,394 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 63 [2021-01-06 11:30:38,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:30:38,395 INFO L225 Difference]: With dead ends: 99 [2021-01-06 11:30:38,395 INFO L226 Difference]: Without dead ends: 95 [2021-01-06 11:30:38,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=128, Invalid=2952, Unknown=0, NotChecked=0, Total=3080 [2021-01-06 11:30:38,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-01-06 11:30:38,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 83. [2021-01-06 11:30:38,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-01-06 11:30:38,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2021-01-06 11:30:38,410 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 63 [2021-01-06 11:30:38,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:30:38,410 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2021-01-06 11:30:38,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 53 states. [2021-01-06 11:30:38,410 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2021-01-06 11:30:38,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-01-06 11:30:38,411 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:30:38,411 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:30:38,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-06 11:30:38,627 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:30:38,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:30:38,627 INFO L82 PathProgramCache]: Analyzing trace with hash 515429402, now seen corresponding path program 17 times [2021-01-06 11:30:38,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:30:38,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339317568] [2021-01-06 11:30:38,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:30:38,652 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:30:38,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56591723] [2021-01-06 11:30:38,656 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 11:30:39,566 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-01-06 11:30:39,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:30:39,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 11:30:39,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:30:39,891 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-01-06 11:30:39,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339317568] [2021-01-06 11:30:39,891 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:30:39,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56591723] [2021-01-06 11:30:39,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:30:39,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-01-06 11:30:39,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704407716] [2021-01-06 11:30:39,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-01-06 11:30:39,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:30:39,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-01-06 11:30:39,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-01-06 11:30:39,894 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand 17 states. [2021-01-06 11:30:40,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:30:40,635 INFO L93 Difference]: Finished difference Result 175 states and 185 transitions. [2021-01-06 11:30:40,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-06 11:30:40,636 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 65 [2021-01-06 11:30:40,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:30:40,637 INFO L225 Difference]: With dead ends: 175 [2021-01-06 11:30:40,637 INFO L226 Difference]: Without dead ends: 98 [2021-01-06 11:30:40,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2021-01-06 11:30:40,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-01-06 11:30:40,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 84. [2021-01-06 11:30:40,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-01-06 11:30:40,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2021-01-06 11:30:40,649 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 65 [2021-01-06 11:30:40,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:30:40,649 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2021-01-06 11:30:40,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-01-06 11:30:40,650 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2021-01-06 11:30:40,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 11:30:40,650 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:30:40,651 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:30:40,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:30:40,852 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:30:40,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:30:40,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1223697884, now seen corresponding path program 18 times [2021-01-06 11:30:40,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:30:40,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932012074] [2021-01-06 11:30:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:30:40,885 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:30:40,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1064627961] [2021-01-06 11:30:40,885 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 11:30:41,819 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-01-06 11:30:41,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:30:41,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 11:30:41,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:30:42,172 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-01-06 11:30:42,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932012074] [2021-01-06 11:30:42,172 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:30:42,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064627961] [2021-01-06 11:30:42,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:30:42,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-01-06 11:30:42,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059459063] [2021-01-06 11:30:42,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-01-06 11:30:42,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:30:42,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-01-06 11:30:42,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-01-06 11:30:42,175 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand 17 states. [2021-01-06 11:30:42,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:30:42,856 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2021-01-06 11:30:42,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-06 11:30:42,858 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 67 [2021-01-06 11:30:42,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:30:42,859 INFO L225 Difference]: With dead ends: 93 [2021-01-06 11:30:42,859 INFO L226 Difference]: Without dead ends: 75 [2021-01-06 11:30:42,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2021-01-06 11:30:42,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-01-06 11:30:42,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2021-01-06 11:30:42,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-01-06 11:30:42,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 75 transitions. [2021-01-06 11:30:42,871 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 75 transitions. Word has length 67 [2021-01-06 11:30:42,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:30:42,871 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 75 transitions. [2021-01-06 11:30:42,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-01-06 11:30:42,871 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 75 transitions. [2021-01-06 11:30:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-01-06 11:30:42,872 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:30:42,872 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:30:43,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:30:43,087 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:30:43,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:30:43,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1430226400, now seen corresponding path program 19 times [2021-01-06 11:30:43,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:30:43,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990517131] [2021-01-06 11:30:43,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:30:43,112 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:30:43,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236918900] [2021-01-06 11:30:43,112 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 11:30:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:30:43,264 WARN L261 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 105 conjunts are in the unsatisfiable core [2021-01-06 11:30:43,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:30:43,311 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 11:30:43,315 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:43,328 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:43,334 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 11 treesize of output 7 [2021-01-06 11:30:43,335 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:43,342 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:43,344 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 11:30:43,344 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2021-01-06 11:30:43,376 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-01-06 11:30:43,377 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:43,391 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:43,392 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:43,392 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2021-01-06 11:30:43,465 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:43,466 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 56 [2021-01-06 11:30:43,468 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:43,524 INFO L625 ElimStorePlain]: treesize reduction 20, result has 64.3 percent of original size [2021-01-06 11:30:43,526 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:43,526 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2021-01-06 11:30:43,676 INFO L348 Elim1Store]: treesize reduction 52, result has 45.8 percent of original size [2021-01-06 11:30:43,676 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 42 treesize of output 71 [2021-01-06 11:30:43,682 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:43,749 INFO L625 ElimStorePlain]: treesize reduction 20, result has 70.6 percent of original size [2021-01-06 11:30:43,751 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:43,751 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2021-01-06 11:30:43,945 INFO L348 Elim1Store]: treesize reduction 122, result has 31.5 percent of original size [2021-01-06 11:30:43,945 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 86 [2021-01-06 11:30:43,947 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:44,030 INFO L625 ElimStorePlain]: treesize reduction 20, result has 75.0 percent of original size [2021-01-06 11:30:44,031 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:44,031 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2021-01-06 11:30:44,405 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-01-06 11:30:44,406 INFO L348 Elim1Store]: treesize reduction 66, result has 69.3 percent of original size [2021-01-06 11:30:44,406 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 182 [2021-01-06 11:30:44,410 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:44,561 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 38 [2021-01-06 11:30:44,562 INFO L625 ElimStorePlain]: treesize reduction 86, result has 42.3 percent of original size [2021-01-06 11:30:44,563 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:44,563 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-01-06 11:30:45,144 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 52 [2021-01-06 11:30:45,144 INFO L348 Elim1Store]: treesize reduction 163, result has 49.7 percent of original size [2021-01-06 11:30:45,145 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 197 [2021-01-06 11:30:45,148 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:45,295 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2021-01-06 11:30:45,296 INFO L625 ElimStorePlain]: treesize reduction 86, result has 46.6 percent of original size [2021-01-06 11:30:45,297 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:45,297 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-01-06 11:30:46,038 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2021-01-06 11:30:46,039 INFO L348 Elim1Store]: treesize reduction 170, result has 57.2 percent of original size [2021-01-06 11:30:46,039 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 75 treesize of output 266 [2021-01-06 11:30:46,045 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:46,235 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-01-06 11:30:46,235 INFO L625 ElimStorePlain]: treesize reduction 130, result has 39.3 percent of original size [2021-01-06 11:30:46,236 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:46,236 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:88, output treesize:84 [2021-01-06 11:30:46,471 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:30:47,407 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:30:47,408 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:30:47,409 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 202 [2021-01-06 11:30:47,414 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:47,598 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 50 [2021-01-06 11:30:47,599 INFO L625 ElimStorePlain]: treesize reduction 154, result has 36.9 percent of original size [2021-01-06 11:30:47,602 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:47,602 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:90 [2021-01-06 11:30:48,368 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-01-06 11:30:48,590 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:30:48,591 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:30:48,592 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 98 treesize of output 202 [2021-01-06 11:30:48,597 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:48,881 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-01-06 11:30:48,884 INFO L625 ElimStorePlain]: treesize reduction 156, result has 37.1 percent of original size [2021-01-06 11:30:48,888 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:48,888 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:92 [2021-01-06 11:30:49,412 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-01-06 11:30:49,943 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:30:50,243 WARN L197 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 84 [2021-01-06 11:30:50,245 INFO L348 Elim1Store]: treesize reduction 257, result has 43.8 percent of original size [2021-01-06 11:30:50,246 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 105 treesize of output 319 [2021-01-06 11:30:50,254 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:50,566 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 48 [2021-01-06 11:30:50,567 INFO L625 ElimStorePlain]: treesize reduction 343, result has 22.7 percent of original size [2021-01-06 11:30:50,569 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:50,569 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:101 [2021-01-06 11:30:50,985 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:30:51,590 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:30:51,806 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:30:51,807 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:30:51,808 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 109 treesize of output 205 [2021-01-06 11:30:51,818 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:52,165 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2021-01-06 11:30:52,166 INFO L625 ElimStorePlain]: treesize reduction 136, result has 40.4 percent of original size [2021-01-06 11:30:52,166 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:52,167 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:92 [2021-01-06 11:30:52,760 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:30:53,389 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-01-06 11:30:53,790 WARN L197 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 84 [2021-01-06 11:30:53,792 INFO L348 Elim1Store]: treesize reduction 257, result has 43.8 percent of original size [2021-01-06 11:30:53,793 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 105 treesize of output 319 [2021-01-06 11:30:53,805 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:54,244 WARN L197 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 53 [2021-01-06 11:30:54,246 INFO L625 ElimStorePlain]: treesize reduction 358, result has 21.8 percent of original size [2021-01-06 11:30:54,248 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:54,249 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:100 [2021-01-06 11:30:55,079 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-01-06 11:30:55,912 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-01-06 11:30:56,146 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:30:56,149 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:30:56,150 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 109 treesize of output 205 [2021-01-06 11:30:56,156 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:56,379 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 54 [2021-01-06 11:30:56,380 INFO L625 ElimStorePlain]: treesize reduction 153, result has 44.2 percent of original size [2021-01-06 11:30:56,381 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:56,382 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:121 [2021-01-06 11:30:56,997 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-01-06 11:30:57,598 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-01-06 11:30:57,615 INFO L348 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-01-06 11:30:57,616 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 127 treesize of output 102 [2021-01-06 11:30:57,618 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:57,732 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:30:57,733 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:57,734 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:57,734 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:137, output treesize:100 [2021-01-06 11:30:58,319 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:30:58,856 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-01-06 11:30:59,609 WARN L197 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 93 [2021-01-06 11:30:59,610 INFO L348 Elim1Store]: treesize reduction 240, result has 61.0 percent of original size [2021-01-06 11:30:59,611 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 119 treesize of output 425 [2021-01-06 11:30:59,621 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:59,832 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 51 [2021-01-06 11:30:59,832 INFO L625 ElimStorePlain]: treesize reduction 368, result has 21.0 percent of original size [2021-01-06 11:30:59,834 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:59,834 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:132, output treesize:98 [2021-01-06 11:31:00,942 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:31:01,664 WARN L197 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 88 [2021-01-06 11:31:01,665 INFO L348 Elim1Store]: treesize reduction 328, result has 51.1 percent of original size [2021-01-06 11:31:01,665 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 115 treesize of output 391 [2021-01-06 11:31:01,679 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:02,008 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 49 [2021-01-06 11:31:02,009 INFO L625 ElimStorePlain]: treesize reduction 286, result has 23.7 percent of original size [2021-01-06 11:31:02,011 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:02,011 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:128, output treesize:89 [2021-01-06 11:31:03,118 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:31:03,751 WARN L197 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 82 [2021-01-06 11:31:03,752 INFO L348 Elim1Store]: treesize reduction 404, result has 42.6 percent of original size [2021-01-06 11:31:03,753 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 106 treesize of output 344 [2021-01-06 11:31:03,759 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:03,975 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 51 [2021-01-06 11:31:03,976 INFO L625 ElimStorePlain]: treesize reduction 262, result has 27.2 percent of original size [2021-01-06 11:31:03,977 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:03,977 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:98 [2021-01-06 11:31:04,524 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:31:05,958 WARN L197 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 93 [2021-01-06 11:31:05,959 INFO L348 Elim1Store]: treesize reduction 240, result has 61.0 percent of original size [2021-01-06 11:31:05,963 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 104 treesize of output 422 [2021-01-06 11:31:05,972 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:06,182 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 47 [2021-01-06 11:31:06,183 INFO L625 ElimStorePlain]: treesize reduction 332, result has 20.2 percent of original size [2021-01-06 11:31:06,184 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:06,184 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:84 [2021-01-06 11:31:07,956 WARN L197 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 93 [2021-01-06 11:31:07,956 INFO L348 Elim1Store]: treesize reduction 240, result has 61.0 percent of original size [2021-01-06 11:31:07,957 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 98 treesize of output 420 [2021-01-06 11:31:07,963 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:08,218 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 48 [2021-01-06 11:31:08,219 INFO L625 ElimStorePlain]: treesize reduction 368, result has 19.7 percent of original size [2021-01-06 11:31:08,219 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:08,220 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:90 [2021-01-06 11:31:09,256 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-01-06 11:31:10,049 WARN L197 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 86 [2021-01-06 11:31:10,050 INFO L348 Elim1Store]: treesize reduction 316, result has 51.3 percent of original size [2021-01-06 11:31:10,051 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 107 treesize of output 379 [2021-01-06 11:31:10,058 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:10,260 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 47 [2021-01-06 11:31:10,260 INFO L625 ElimStorePlain]: treesize reduction 284, result has 23.5 percent of original size [2021-01-06 11:31:10,261 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:10,261 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:120, output treesize:87 [2021-01-06 11:31:11,689 WARN L197 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 33 [2021-01-06 11:31:11,690 INFO L348 Elim1Store]: treesize reduction 402, result has 11.6 percent of original size [2021-01-06 11:31:11,691 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 94 treesize of output 95 [2021-01-06 11:31:11,693 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:11,778 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:31:11,781 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:11,781 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:104, output treesize:79 [2021-01-06 11:31:12,316 INFO L348 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-01-06 11:31:12,317 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 80 treesize of output 93 [2021-01-06 11:31:12,320 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:12,424 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-01-06 11:31:12,425 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:31:12,426 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:12,426 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:82 [2021-01-06 11:31:13,168 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:31:13,169 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:31:13,169 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 202 [2021-01-06 11:31:13,174 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:13,397 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2021-01-06 11:31:13,397 INFO L625 ElimStorePlain]: treesize reduction 142, result has 38.8 percent of original size [2021-01-06 11:31:13,398 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:13,398 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:90 [2021-01-06 11:31:14,580 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:31:14,581 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:31:14,582 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 98 treesize of output 202 [2021-01-06 11:31:14,587 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:14,792 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2021-01-06 11:31:14,792 INFO L625 ElimStorePlain]: treesize reduction 160, result has 37.0 percent of original size [2021-01-06 11:31:14,793 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:14,793 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:94 [2021-01-06 11:31:16,149 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:31:16,150 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:31:16,151 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 106 treesize of output 204 [2021-01-06 11:31:16,157 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:16,339 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 50 [2021-01-06 11:31:16,339 INFO L625 ElimStorePlain]: treesize reduction 148, result has 41.0 percent of original size [2021-01-06 11:31:16,340 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:16,340 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:103 [2021-01-06 11:31:17,605 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:31:17,606 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:31:17,606 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 113 treesize of output 205 [2021-01-06 11:31:17,611 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:17,801 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 51 [2021-01-06 11:31:17,802 INFO L625 ElimStorePlain]: treesize reduction 155, result has 43.0 percent of original size [2021-01-06 11:31:17,803 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:17,803 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:126, output treesize:117 [2021-01-06 11:31:18,442 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:31:19,114 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:31:19,401 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 84 [2021-01-06 11:31:19,402 INFO L348 Elim1Store]: treesize reduction 257, result has 43.8 percent of original size [2021-01-06 11:31:19,403 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 131 treesize of output 324 [2021-01-06 11:31:19,410 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:19,669 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 51 [2021-01-06 11:31:19,670 INFO L625 ElimStorePlain]: treesize reduction 292, result has 26.4 percent of original size [2021-01-06 11:31:19,671 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:19,671 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:144, output treesize:105 [2021-01-06 11:31:20,650 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:31:21,546 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:31:21,864 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 100 [2021-01-06 11:31:21,865 INFO L348 Elim1Store]: treesize reduction 222, result has 53.8 percent of original size [2021-01-06 11:31:21,865 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 118 treesize of output 382 [2021-01-06 11:31:21,873 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:22,096 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 52 [2021-01-06 11:31:22,097 INFO L625 ElimStorePlain]: treesize reduction 290, result has 28.2 percent of original size [2021-01-06 11:31:22,098 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:22,098 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:131, output treesize:114 [2021-01-06 11:31:22,835 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:31:23,600 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:31:23,617 INFO L348 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-01-06 11:31:23,618 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 113 treesize of output 100 [2021-01-06 11:31:23,620 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:23,726 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-01-06 11:31:23,726 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:31:23,728 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 11:31:23,728 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:123, output treesize:100 [2021-01-06 11:31:24,644 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:31:24,647 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:31:24,649 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:31:24,650 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:31:24,656 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:31:24,658 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:31:24,663 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-01-06 11:31:25,181 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:31:25,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990517131] [2021-01-06 11:31:25,182 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:31:25,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236918900] [2021-01-06 11:31:25,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:31:25,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2021-01-06 11:31:25,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224379876] [2021-01-06 11:31:25,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-01-06 11:31:25,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:31:25,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-01-06 11:31:25,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=3711, Unknown=0, NotChecked=0, Total=3906 [2021-01-06 11:31:25,184 INFO L87 Difference]: Start difference. First operand 72 states and 75 transitions. Second operand 63 states. [2021-01-06 11:31:29,227 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-01-06 11:31:30,218 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2021-01-06 11:31:30,965 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-01-06 11:31:32,061 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-01-06 11:31:32,877 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-01-06 11:31:34,041 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-06 11:31:34,873 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-01-06 11:31:35,742 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-01-06 11:31:37,557 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-01-06 11:31:38,474 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-06 11:31:39,356 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-01-06 11:31:40,230 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-01-06 11:31:41,088 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-06 11:31:41,999 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-06 11:31:42,870 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-06 11:31:43,765 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-01-06 11:31:44,643 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-01-06 11:31:45,569 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-01-06 11:31:46,441 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-01-06 11:31:47,392 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-01-06 11:31:48,422 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-01-06 11:31:49,519 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2021-01-06 11:31:50,755 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-06 11:31:52,097 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-06 11:31:53,185 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-01-06 11:31:54,663 WARN L197 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-01-06 11:31:55,626 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-01-06 11:31:56,527 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-01-06 11:31:57,063 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-06 11:31:57,991 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2021-01-06 11:31:58,463 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2021-01-06 11:31:59,459 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-06 11:32:00,101 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-01-06 11:32:01,278 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2021-01-06 11:32:01,927 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-01-06 11:32:03,020 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2021-01-06 11:32:05,591 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-01-06 11:32:06,631 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-06 11:32:07,217 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-01-06 11:32:08,358 WARN L197 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2021-01-06 11:32:09,376 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-06 11:32:10,392 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-01-06 11:32:11,418 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-06 11:32:12,490 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-06 11:32:13,671 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-01-06 11:32:14,677 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-06 11:32:15,629 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-01-06 11:32:16,685 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-01-06 11:32:17,804 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-06 11:32:19,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:32:19,726 INFO L93 Difference]: Finished difference Result 127 states and 133 transitions. [2021-01-06 11:32:19,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-01-06 11:32:19,727 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 71 [2021-01-06 11:32:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:32:19,728 INFO L225 Difference]: With dead ends: 127 [2021-01-06 11:32:19,728 INFO L226 Difference]: Without dead ends: 123 [2021-01-06 11:32:19,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2804 ImplicationChecksByTransitivity, 68.3s TimeCoverageRelationStatistics Valid=585, Invalid=14421, Unknown=0, NotChecked=0, Total=15006 [2021-01-06 11:32:19,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-01-06 11:32:19,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 109. [2021-01-06 11:32:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-01-06 11:32:19,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 115 transitions. [2021-01-06 11:32:19,745 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 115 transitions. Word has length 71 [2021-01-06 11:32:19,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:32:19,745 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 115 transitions. [2021-01-06 11:32:19,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 63 states. [2021-01-06 11:32:19,745 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 115 transitions. [2021-01-06 11:32:19,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-01-06 11:32:19,745 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:32:19,745 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:32:19,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:32:19,946 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:32:19,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:32:19,947 INFO L82 PathProgramCache]: Analyzing trace with hash -4801630, now seen corresponding path program 20 times [2021-01-06 11:32:19,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:32:19,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122918292] [2021-01-06 11:32:19,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:32:19,967 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:32:19,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738286877] [2021-01-06 11:32:19,968 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 11:32:20,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:32:20,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:32:20,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 11:32:20,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:32:20,359 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-01-06 11:32:20,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122918292] [2021-01-06 11:32:20,360 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:32:20,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738286877] [2021-01-06 11:32:20,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:32:20,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-01-06 11:32:20,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907935090] [2021-01-06 11:32:20,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 11:32:20,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:32:20,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 11:32:20,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-01-06 11:32:20,362 INFO L87 Difference]: Start difference. First operand 109 states and 115 transitions. Second operand 19 states. [2021-01-06 11:32:21,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:32:21,021 INFO L93 Difference]: Finished difference Result 211 states and 222 transitions. [2021-01-06 11:32:21,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-06 11:32:21,024 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 73 [2021-01-06 11:32:21,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:32:21,025 INFO L225 Difference]: With dead ends: 211 [2021-01-06 11:32:21,025 INFO L226 Difference]: Without dead ends: 125 [2021-01-06 11:32:21,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2021-01-06 11:32:21,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-01-06 11:32:21,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 110. [2021-01-06 11:32:21,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2021-01-06 11:32:21,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 115 transitions. [2021-01-06 11:32:21,041 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 115 transitions. Word has length 73 [2021-01-06 11:32:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:32:21,041 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 115 transitions. [2021-01-06 11:32:21,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 11:32:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 115 transitions. [2021-01-06 11:32:21,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-01-06 11:32:21,042 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:32:21,042 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:32:21,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-01-06 11:32:21,251 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:32:21,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:32:21,251 INFO L82 PathProgramCache]: Analyzing trace with hash 25653986, now seen corresponding path program 21 times [2021-01-06 11:32:21,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:32:21,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049857952] [2021-01-06 11:32:21,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:32:21,270 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:32:21,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [464200179] [2021-01-06 11:32:21,270 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 11:32:23,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-01-06 11:32:23,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:32:23,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 11:32:23,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:32:23,469 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-01-06 11:32:23,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049857952] [2021-01-06 11:32:23,469 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:32:23,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464200179] [2021-01-06 11:32:23,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:32:23,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-01-06 11:32:23,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234103817] [2021-01-06 11:32:23,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 11:32:23,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:32:23,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 11:32:23,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-01-06 11:32:23,471 INFO L87 Difference]: Start difference. First operand 110 states and 115 transitions. Second operand 19 states. [2021-01-06 11:32:24,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:32:24,140 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2021-01-06 11:32:24,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-06 11:32:24,141 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 73 [2021-01-06 11:32:24,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:32:24,142 INFO L225 Difference]: With dead ends: 119 [2021-01-06 11:32:24,142 INFO L226 Difference]: Without dead ends: 83 [2021-01-06 11:32:24,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2021-01-06 11:32:24,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-01-06 11:32:24,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2021-01-06 11:32:24,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2021-01-06 11:32:24,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2021-01-06 11:32:24,153 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 73 [2021-01-06 11:32:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:32:24,153 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2021-01-06 11:32:24,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 11:32:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2021-01-06 11:32:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-01-06 11:32:24,154 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:32:24,154 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:32:24,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-01-06 11:32:24,360 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:32:24,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:32:24,361 INFO L82 PathProgramCache]: Analyzing trace with hash 93273000, now seen corresponding path program 22 times [2021-01-06 11:32:24,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:32:24,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077548331] [2021-01-06 11:32:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:32:24,380 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:32:24,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667858861] [2021-01-06 11:32:24,381 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:32:24,458 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:32:24,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:32:24,460 WARN L261 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 113 conjunts are in the unsatisfiable core [2021-01-06 11:32:24,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:32:24,475 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-01-06 11:32:24,476 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:24,484 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:32:24,485 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:24,485 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2021-01-06 11:32:24,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:24,504 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-01-06 11:32:24,505 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:24,518 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:32:24,519 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:24,519 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2021-01-06 11:32:24,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:24,582 INFO L348 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-01-06 11:32:24,582 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2021-01-06 11:32:24,584 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:24,608 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:32:24,608 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:24,609 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:39 [2021-01-06 11:32:24,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:24,787 INFO L348 Elim1Store]: treesize reduction 10, result has 87.7 percent of original size [2021-01-06 11:32:24,788 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 39 treesize of output 98 [2021-01-06 11:32:24,793 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:24,900 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 27 [2021-01-06 11:32:24,901 INFO L625 ElimStorePlain]: treesize reduction 42, result has 50.6 percent of original size [2021-01-06 11:32:24,901 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:24,901 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:43 [2021-01-06 11:32:25,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:25,190 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 32 [2021-01-06 11:32:25,191 INFO L348 Elim1Store]: treesize reduction 77, result has 51.9 percent of original size [2021-01-06 11:32:25,191 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 113 [2021-01-06 11:32:25,193 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:25,294 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-01-06 11:32:25,295 INFO L625 ElimStorePlain]: treesize reduction 42, result has 56.7 percent of original size [2021-01-06 11:32:25,295 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:25,295 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:55 [2021-01-06 11:32:25,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:25,801 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-01-06 11:32:25,801 INFO L348 Elim1Store]: treesize reduction 66, result has 69.3 percent of original size [2021-01-06 11:32:25,802 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 182 [2021-01-06 11:32:25,805 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:25,990 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2021-01-06 11:32:25,991 INFO L625 ElimStorePlain]: treesize reduction 86, result has 41.5 percent of original size [2021-01-06 11:32:25,991 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:25,992 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:61 [2021-01-06 11:32:26,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:26,701 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 52 [2021-01-06 11:32:26,702 INFO L348 Elim1Store]: treesize reduction 163, result has 49.7 percent of original size [2021-01-06 11:32:26,702 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 197 [2021-01-06 11:32:26,705 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:26,898 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2021-01-06 11:32:26,898 INFO L625 ElimStorePlain]: treesize reduction 86, result has 45.9 percent of original size [2021-01-06 11:32:26,899 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:26,899 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:77, output treesize:73 [2021-01-06 11:32:27,174 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-01-06 11:32:27,465 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-01-06 11:32:27,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:27,833 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2021-01-06 11:32:27,834 INFO L348 Elim1Store]: treesize reduction 170, result has 57.2 percent of original size [2021-01-06 11:32:27,834 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 75 treesize of output 266 [2021-01-06 11:32:27,839 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:28,174 WARN L197 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 43 [2021-01-06 11:32:28,174 INFO L625 ElimStorePlain]: treesize reduction 130, result has 37.8 percent of original size [2021-01-06 11:32:28,175 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:28,176 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:83, output treesize:79 [2021-01-06 11:32:28,508 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-01-06 11:32:28,865 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-01-06 11:32:28,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:29,379 WARN L197 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 38 [2021-01-06 11:32:29,379 INFO L348 Elim1Store]: treesize reduction 416, result has 13.0 percent of original size [2021-01-06 11:32:29,380 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 82 treesize of output 102 [2021-01-06 11:32:29,382 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:29,537 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:32:29,537 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:32:29,538 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:29,538 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:90, output treesize:86 [2021-01-06 11:32:30,001 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:32:30,460 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-01-06 11:32:30,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:30,652 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 60 [2021-01-06 11:32:30,653 INFO L348 Elim1Store]: treesize reduction 322, result has 25.6 percent of original size [2021-01-06 11:32:30,653 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 103 treesize of output 228 [2021-01-06 11:32:30,658 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:30,944 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2021-01-06 11:32:30,944 INFO L625 ElimStorePlain]: treesize reduction 142, result has 40.6 percent of original size [2021-01-06 11:32:30,945 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:30,945 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:114, output treesize:97 [2021-01-06 11:32:31,393 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:32:31,874 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:32:31,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:32,064 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 60 [2021-01-06 11:32:32,065 INFO L348 Elim1Store]: treesize reduction 322, result has 25.6 percent of original size [2021-01-06 11:32:32,065 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 107 treesize of output 228 [2021-01-06 11:32:32,071 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:32,339 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 53 [2021-01-06 11:32:32,340 INFO L625 ElimStorePlain]: treesize reduction 168, result has 40.2 percent of original size [2021-01-06 11:32:32,340 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:32,340 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:113 [2021-01-06 11:32:32,865 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-01-06 11:32:33,417 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-01-06 11:32:33,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:33,769 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 95 [2021-01-06 11:32:33,770 INFO L348 Elim1Store]: treesize reduction 339, result has 40.3 percent of original size [2021-01-06 11:32:33,770 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 129 treesize of output 362 [2021-01-06 11:32:33,780 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:34,226 WARN L197 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 54 [2021-01-06 11:32:34,227 INFO L625 ElimStorePlain]: treesize reduction 351, result has 27.8 percent of original size [2021-01-06 11:32:34,228 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:34,228 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:140, output treesize:135 [2021-01-06 11:32:34,806 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-01-06 11:32:35,400 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:32:35,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:35,589 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 60 [2021-01-06 11:32:35,590 INFO L348 Elim1Store]: treesize reduction 322, result has 25.6 percent of original size [2021-01-06 11:32:35,591 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 137 treesize of output 234 [2021-01-06 11:32:35,597 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:35,962 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 51 [2021-01-06 11:32:35,963 INFO L625 ElimStorePlain]: treesize reduction 229, result has 30.8 percent of original size [2021-01-06 11:32:35,963 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:35,963 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:148, output treesize:102 [2021-01-06 11:32:36,448 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:32:36,963 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:32:36,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:37,161 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 60 [2021-01-06 11:32:37,162 INFO L348 Elim1Store]: treesize reduction 322, result has 25.6 percent of original size [2021-01-06 11:32:37,162 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 116 treesize of output 231 [2021-01-06 11:32:37,169 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:37,461 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-01-06 11:32:37,461 INFO L625 ElimStorePlain]: treesize reduction 170, result has 40.1 percent of original size [2021-01-06 11:32:37,462 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:37,462 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:127, output treesize:114 [2021-01-06 11:32:38,175 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-01-06 11:32:38,905 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-01-06 11:32:38,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:39,266 WARN L197 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 95 [2021-01-06 11:32:39,267 INFO L348 Elim1Store]: treesize reduction 339, result has 40.3 percent of original size [2021-01-06 11:32:39,268 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 130 treesize of output 363 [2021-01-06 11:32:39,276 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:39,603 WARN L197 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 54 [2021-01-06 11:32:39,603 INFO L625 ElimStorePlain]: treesize reduction 418, result has 19.9 percent of original size [2021-01-06 11:32:39,604 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:39,604 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:104 [2021-01-06 11:32:40,376 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-01-06 11:32:41,187 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:32:41,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:41,384 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 60 [2021-01-06 11:32:41,385 INFO L348 Elim1Store]: treesize reduction 322, result has 25.6 percent of original size [2021-01-06 11:32:41,385 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 116 treesize of output 231 [2021-01-06 11:32:41,392 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:41,695 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 54 [2021-01-06 11:32:41,696 INFO L625 ElimStorePlain]: treesize reduction 168, result has 38.7 percent of original size [2021-01-06 11:32:41,697 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:41,697 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:127, output treesize:106 [2021-01-06 11:32:42,610 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-01-06 11:32:43,525 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-01-06 11:32:43,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:43,540 INFO L348 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-01-06 11:32:43,540 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 110 [2021-01-06 11:32:43,544 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:43,743 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-01-06 11:32:43,745 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:32:43,746 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:43,746 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:124, output treesize:107 [2021-01-06 11:32:44,734 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-01-06 11:32:45,721 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:32:45,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:46,780 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 217 DAG size of output: 105 [2021-01-06 11:32:46,781 INFO L348 Elim1Store]: treesize reduction 322, result has 57.2 percent of original size [2021-01-06 11:32:46,781 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 44 case distinctions, treesize of input 128 treesize of output 483 [2021-01-06 11:32:46,789 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:47,251 WARN L197 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 52 [2021-01-06 11:32:47,252 INFO L625 ElimStorePlain]: treesize reduction 378, result has 19.7 percent of original size [2021-01-06 11:32:47,252 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:47,253 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:93 [2021-01-06 11:32:48,251 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:32:49,282 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:32:49,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:50,371 WARN L197 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 219 DAG size of output: 100 [2021-01-06 11:32:50,372 INFO L348 Elim1Store]: treesize reduction 415, result has 49.0 percent of original size [2021-01-06 11:32:50,372 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 44 case distinctions, treesize of input 112 treesize of output 445 [2021-01-06 11:32:50,379 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:50,768 WARN L197 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 52 [2021-01-06 11:32:50,769 INFO L625 ElimStorePlain]: treesize reduction 334, result has 22.3 percent of original size [2021-01-06 11:32:50,770 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:50,770 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:123, output treesize:96 [2021-01-06 11:32:51,748 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:32:52,867 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-01-06 11:32:52,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:54,079 WARN L197 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 217 DAG size of output: 105 [2021-01-06 11:32:54,080 INFO L348 Elim1Store]: treesize reduction 322, result has 57.2 percent of original size [2021-01-06 11:32:54,082 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 44 case distinctions, treesize of input 107 treesize of output 478 [2021-01-06 11:32:54,092 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:54,512 WARN L197 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 51 [2021-01-06 11:32:54,513 INFO L625 ElimStorePlain]: treesize reduction 422, result has 18.7 percent of original size [2021-01-06 11:32:54,513 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:54,514 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:97 [2021-01-06 11:32:55,675 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:32:56,917 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:32:56,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:32:58,231 WARN L197 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 217 DAG size of output: 105 [2021-01-06 11:32:58,232 INFO L348 Elim1Store]: treesize reduction 322, result has 57.2 percent of original size [2021-01-06 11:32:58,232 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 44 case distinctions, treesize of input 113 treesize of output 480 [2021-01-06 11:32:58,240 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:58,708 WARN L197 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2021-01-06 11:32:58,708 INFO L625 ElimStorePlain]: treesize reduction 424, result has 19.5 percent of original size [2021-01-06 11:32:58,710 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:58,710 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:124, output treesize:103 [2021-01-06 11:33:01,171 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:33:01,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:33:02,214 WARN L197 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 217 DAG size of output: 98 [2021-01-06 11:33:02,214 INFO L348 Elim1Store]: treesize reduction 401, result has 49.2 percent of original size [2021-01-06 11:33:02,215 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 44 case distinctions, treesize of input 122 treesize of output 439 [2021-01-06 11:33:02,223 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:33:02,631 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 51 [2021-01-06 11:33:02,631 INFO L625 ElimStorePlain]: treesize reduction 370, result has 23.2 percent of original size [2021-01-06 11:33:02,632 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:33:02,632 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:112 [2021-01-06 11:33:03,930 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:33:05,121 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:33:05,131 INFO L190 IndexEqualityManager]: detected not equals via solver