/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/ss3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 11:28:41,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 11:28:41,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 11:28:41,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 11:28:41,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 11:28:41,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 11:28:41,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 11:28:41,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 11:28:41,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 11:28:41,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 11:28:41,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 11:28:41,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 11:28:41,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 11:28:41,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 11:28:41,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 11:28:41,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 11:28:41,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 11:28:41,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 11:28:41,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 11:28:41,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 11:28:41,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 11:28:41,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 11:28:41,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 11:28:41,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 11:28:41,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 11:28:41,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 11:28:41,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 11:28:41,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 11:28:41,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 11:28:41,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 11:28:41,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 11:28:41,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 11:28:41,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 11:28:41,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 11:28:41,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 11:28:41,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 11:28:41,862 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 11:28:41,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 11:28:41,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 11:28:41,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 11:28:41,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 11:28:41,918 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 11:28:41,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 11:28:41,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 11:28:41,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 11:28:41,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 11:28:41,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 11:28:41,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 11:28:41,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 11:28:41,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 11:28:41,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 11:28:41,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 11:28:41,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 11:28:41,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 11:28:41,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 11:28:41,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 11:28:41,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 11:28:41,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 11:28:41,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 11:28:41,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 11:28:41,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 11:28:41,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 11:28:41,925 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 11:28:42,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 11:28:42,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 11:28:42,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 11:28:42,390 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 11:28:42,391 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 11:28:42,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss3.c [2021-01-06 11:28:42,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9bca1d75a/cb294e32ff894792b00acf82fc566c59/FLAG64d6442cd [2021-01-06 11:28:43,218 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 11:28:43,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/ss3.c [2021-01-06 11:28:43,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9bca1d75a/cb294e32ff894792b00acf82fc566c59/FLAG64d6442cd [2021-01-06 11:28:43,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9bca1d75a/cb294e32ff894792b00acf82fc566c59 [2021-01-06 11:28:43,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 11:28:43,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 11:28:43,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 11:28:43,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 11:28:43,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 11:28:43,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:28:43" (1/1) ... [2021-01-06 11:28:43,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c139c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43, skipping insertion in model container [2021-01-06 11:28:43,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:28:43" (1/1) ... [2021-01-06 11:28:43,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 11:28:43,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 11:28:43,887 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/ss3.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: 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]]] [2021-01-06 11:28:43,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:28:43,933 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 11:28:43,952 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/ss3.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: 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]]] [2021-01-06 11:28:43,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:28:43,993 INFO L208 MainTranslator]: Completed translation [2021-01-06 11:28:43,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43 WrapperNode [2021-01-06 11:28:43,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 11:28:43,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 11:28:43,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 11:28:43,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 11:28:44,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43" (1/1) ... [2021-01-06 11:28:44,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43" (1/1) ... [2021-01-06 11:28:44,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 11:28:44,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 11:28:44,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 11:28:44,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 11:28:44,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43" (1/1) ... [2021-01-06 11:28:44,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43" (1/1) ... [2021-01-06 11:28:44,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43" (1/1) ... [2021-01-06 11:28:44,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43" (1/1) ... [2021-01-06 11:28:44,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43" (1/1) ... [2021-01-06 11:28:44,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43" (1/1) ... [2021-01-06 11:28:44,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43" (1/1) ... [2021-01-06 11:28:44,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 11:28:44,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 11:28:44,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 11:28:44,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 11:28:44,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43" (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 11:28:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 11:28:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 11:28:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 11:28:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-06 11:28:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 11:28:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 11:28:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 11:28:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 11:28:44,853 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 11:28:44,853 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-01-06 11:28:44,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:28:44 BoogieIcfgContainer [2021-01-06 11:28:44,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 11:28:44,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 11:28:44,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 11:28:44,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 11:28:44,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:28:43" (1/3) ... [2021-01-06 11:28:44,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac1fb2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:28:44, skipping insertion in model container [2021-01-06 11:28:44,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:28:43" (2/3) ... [2021-01-06 11:28:44,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac1fb2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:28:44, skipping insertion in model container [2021-01-06 11:28:44,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:28:44" (3/3) ... [2021-01-06 11:28:44,870 INFO L111 eAbstractionObserver]: Analyzing ICFG ss3.c [2021-01-06 11:28:44,877 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 11:28:44,883 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 11:28:44,907 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 11:28:44,941 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 11:28:44,942 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 11:28:44,942 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 11:28:44,942 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 11:28:44,942 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 11:28:44,942 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 11:28:44,943 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 11:28:44,943 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 11:28:44,960 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2021-01-06 11:28:44,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 11:28:44,967 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:28:44,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:28:44,969 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:28:44,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:28:44,977 INFO L82 PathProgramCache]: Analyzing trace with hash 118053350, now seen corresponding path program 1 times [2021-01-06 11:28:44,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:28:44,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165936184] [2021-01-06 11:28:44,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:28:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:28:45,193 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 11:28:45,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165936184] [2021-01-06 11:28:45,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:28:45,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 11:28:45,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450922488] [2021-01-06 11:28:45,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 11:28:45,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:28:45,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 11:28:45,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 11:28:45,228 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2021-01-06 11:28:45,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:28:45,253 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2021-01-06 11:28:45,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 11:28:45,254 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2021-01-06 11:28:45,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:28:45,271 INFO L225 Difference]: With dead ends: 50 [2021-01-06 11:28:45,272 INFO L226 Difference]: Without dead ends: 23 [2021-01-06 11:28:45,276 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 11:28:45,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-01-06 11:28:45,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-01-06 11:28:45,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-01-06 11:28:45,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-01-06 11:28:45,324 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2021-01-06 11:28:45,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:28:45,324 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-01-06 11:28:45,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 11:28:45,325 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-01-06 11:28:45,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 11:28:45,327 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:28:45,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:28:45,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 11:28:45,329 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:28:45,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:28:45,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1065017552, now seen corresponding path program 1 times [2021-01-06 11:28:45,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:28:45,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435235828] [2021-01-06 11:28:45,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:28:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:28:45,450 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 11:28:45,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435235828] [2021-01-06 11:28:45,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:28:45,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 11:28:45,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75021796] [2021-01-06 11:28:45,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 11:28:45,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:28:45,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 11:28:45,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 11:28:45,455 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 4 states. [2021-01-06 11:28:45,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:28:45,556 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2021-01-06 11:28:45,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 11:28:45,557 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2021-01-06 11:28:45,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:28:45,558 INFO L225 Difference]: With dead ends: 49 [2021-01-06 11:28:45,558 INFO L226 Difference]: Without dead ends: 33 [2021-01-06 11:28:45,560 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 11:28:45,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-01-06 11:28:45,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2021-01-06 11:28:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-01-06 11:28:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-01-06 11:28:45,568 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2021-01-06 11:28:45,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:28:45,568 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-01-06 11:28:45,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 11:28:45,569 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-01-06 11:28:45,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-01-06 11:28:45,570 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:28:45,570 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, 1, 1, 1, 1] [2021-01-06 11:28:45,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 11:28:45,570 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:28:45,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:28:45,571 INFO L82 PathProgramCache]: Analyzing trace with hash 524088314, now seen corresponding path program 1 times [2021-01-06 11:28:45,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:28:45,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093262257] [2021-01-06 11:28:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:28:45,609 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:28:45,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [587793447] [2021-01-06 11:28:45,610 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 11:28:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:28:45,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 35 conjunts are in the unsatisfiable core [2021-01-06 11:28:45,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:28:45,828 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 11:28:45,838 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:45,851 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:45,859 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 11:28:45,860 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:45,871 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:45,873 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 11:28:45,874 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2021-01-06 11:28:45,908 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 11:28:45,911 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:45,925 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:45,927 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:45,928 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2021-01-06 11:28:46,104 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 11:28:46,112 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:46,131 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:46,134 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:46,134 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:29 [2021-01-06 11:28:46,250 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 30 treesize of output 21 [2021-01-06 11:28:46,253 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:46,263 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:46,264 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:46,265 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:25 [2021-01-06 11:28:46,359 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 11:28:46,361 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:46,371 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:46,372 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:46,373 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:29 [2021-01-06 11:28:46,400 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 11:28:46,402 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:46,412 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:46,416 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 11:28:46,416 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:31 [2021-01-06 11:28:46,513 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:28:46,522 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:28:46,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:28:46,538 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:28:46,542 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:28:46,550 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:28:46,555 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:28:46,587 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:28:46,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093262257] [2021-01-06 11:28:46,588 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:28:46,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587793447] [2021-01-06 11:28:46,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:28:46,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-01-06 11:28:46,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721166691] [2021-01-06 11:28:46,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 11:28:46,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:28:46,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 11:28:46,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-01-06 11:28:46,591 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 15 states. [2021-01-06 11:28:47,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:28:47,425 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2021-01-06 11:28:47,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 11:28:47,425 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2021-01-06 11:28:47,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:28:47,428 INFO L225 Difference]: With dead ends: 52 [2021-01-06 11:28:47,428 INFO L226 Difference]: Without dead ends: 48 [2021-01-06 11:28:47,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2021-01-06 11:28:47,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-01-06 11:28:47,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2021-01-06 11:28:47,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-01-06 11:28:47,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2021-01-06 11:28:47,449 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 27 [2021-01-06 11:28:47,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:28:47,450 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2021-01-06 11:28:47,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 11:28:47,450 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2021-01-06 11:28:47,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-06 11:28:47,453 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:28:47,453 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, 1, 1, 1, 1] [2021-01-06 11:28:47,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-06 11:28:47,667 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:28:47,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:28:47,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1332490364, now seen corresponding path program 2 times [2021-01-06 11:28:47,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:28:47,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125606855] [2021-01-06 11:28:47,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:28:47,718 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:28:47,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1504724249] [2021-01-06 11:28:47,719 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 11:28:47,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:28:47,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:28:47,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-06 11:28:47,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:28:47,885 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-06 11:28:47,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125606855] [2021-01-06 11:28:47,887 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:28:47,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504724249] [2021-01-06 11:28:47,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:28:47,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-01-06 11:28:47,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228165983] [2021-01-06 11:28:47,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 11:28:47,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:28:47,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 11:28:47,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-06 11:28:47,893 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand 7 states. [2021-01-06 11:28:48,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:28:48,065 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2021-01-06 11:28:48,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 11:28:48,065 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2021-01-06 11:28:48,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:28:48,067 INFO L225 Difference]: With dead ends: 108 [2021-01-06 11:28:48,067 INFO L226 Difference]: Without dead ends: 65 [2021-01-06 11:28:48,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 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 11:28:48,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-01-06 11:28:48,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 48. [2021-01-06 11:28:48,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-01-06 11:28:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2021-01-06 11:28:48,077 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 29 [2021-01-06 11:28:48,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:28:48,078 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2021-01-06 11:28:48,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 11:28:48,078 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2021-01-06 11:28:48,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-06 11:28:48,079 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:28:48,079 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, 1, 1, 1, 1] [2021-01-06 11:28:48,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:28:48,293 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:28:48,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:28:48,294 INFO L82 PathProgramCache]: Analyzing trace with hash 264308668, now seen corresponding path program 3 times [2021-01-06 11:28:48,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:28:48,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655708677] [2021-01-06 11:28:48,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:28:48,322 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:28:48,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1892686296] [2021-01-06 11:28:48,323 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 11:28:48,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-01-06 11:28:48,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:28:48,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-06 11:28:48,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:28:48,513 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-06 11:28:48,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655708677] [2021-01-06 11:28:48,514 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:28:48,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892686296] [2021-01-06 11:28:48,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:28:48,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-01-06 11:28:48,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193405591] [2021-01-06 11:28:48,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 11:28:48,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:28:48,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 11:28:48,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-06 11:28:48,516 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 7 states. [2021-01-06 11:28:48,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:28:48,670 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2021-01-06 11:28:48,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 11:28:48,671 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2021-01-06 11:28:48,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:28:48,671 INFO L225 Difference]: With dead ends: 58 [2021-01-06 11:28:48,671 INFO L226 Difference]: Without dead ends: 42 [2021-01-06 11:28:48,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 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 11:28:48,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-01-06 11:28:48,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2021-01-06 11:28:48,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-01-06 11:28:48,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2021-01-06 11:28:48,679 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 29 [2021-01-06 11:28:48,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:28:48,679 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-01-06 11:28:48,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 11:28:48,680 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2021-01-06 11:28:48,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-06 11:28:48,681 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:28:48,681 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:28:48,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:28:48,897 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:28:48,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:28:48,898 INFO L82 PathProgramCache]: Analyzing trace with hash 982389828, now seen corresponding path program 4 times [2021-01-06 11:28:48,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:28:48,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157494094] [2021-01-06 11:28:48,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:28:48,927 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:28:48,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [376941264] [2021-01-06 11:28:48,927 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 11:28:49,004 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:28:49,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:28:49,006 WARN L261 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 46 conjunts are in the unsatisfiable core [2021-01-06 11:28:49,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:28:49,027 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 11:28:49,028 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,036 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:49,036 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,037 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2021-01-06 11:28:49,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:28:49,060 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 11:28:49,062 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,076 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:49,077 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,077 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2021-01-06 11:28:49,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:28:49,156 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:49,156 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 11:28:49,160 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,200 INFO L625 ElimStorePlain]: treesize reduction 20, result has 64.9 percent of original size [2021-01-06 11:28:49,204 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,204 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2021-01-06 11:28:49,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:28:49,452 INFO L348 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2021-01-06 11:28:49,452 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 11:28:49,456 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,506 INFO L625 ElimStorePlain]: treesize reduction 40, result has 53.5 percent of original size [2021-01-06 11:28:49,507 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,508 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:46 [2021-01-06 11:28:49,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:28:49,593 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-01-06 11:28:49,594 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 11:28:49,596 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,611 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:49,612 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,613 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:43 [2021-01-06 11:28:49,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:28:49,769 INFO L348 Elim1Store]: treesize reduction 10, result has 87.7 percent of original size [2021-01-06 11:28:49,769 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 100 [2021-01-06 11:28:49,776 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,820 INFO L625 ElimStorePlain]: treesize reduction 53, result has 41.8 percent of original size [2021-01-06 11:28:49,822 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,823 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:61, output treesize:38 [2021-01-06 11:28:49,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:28:49,934 INFO L348 Elim1Store]: treesize reduction 31, result has 18.4 percent of original size [2021-01-06 11:28:49,934 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 37 treesize of output 33 [2021-01-06 11:28:49,938 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,952 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:49,953 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:49,954 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:35 [2021-01-06 11:28:50,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:28:50,153 INFO L348 Elim1Store]: treesize reduction 10, result has 91.0 percent of original size [2021-01-06 11:28:50,154 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 53 treesize of output 130 [2021-01-06 11:28:50,159 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:50,217 INFO L625 ElimStorePlain]: treesize reduction 94, result has 32.9 percent of original size [2021-01-06 11:28:50,221 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:50,222 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:46 [2021-01-06 11:28:50,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:28:50,366 INFO L348 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-01-06 11:28:50,367 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 53 treesize of output 35 [2021-01-06 11:28:50,370 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:50,384 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:50,387 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:50,388 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:47 [2021-01-06 11:28:50,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:28:50,536 INFO L348 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2021-01-06 11:28:50,537 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 61 treesize of output 72 [2021-01-06 11:28:50,544 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:50,588 INFO L625 ElimStorePlain]: treesize reduction 42, result has 59.6 percent of original size [2021-01-06 11:28:50,589 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:50,590 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:62 [2021-01-06 11:28:50,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:28:50,761 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-01-06 11:28:50,761 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 67 treesize of output 39 [2021-01-06 11:28:50,764 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:50,780 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:50,783 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 11:28:50,784 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:78, output treesize:57 [2021-01-06 11:28:50,934 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:28:50,941 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:28:50,950 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:28:50,959 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:28:50,975 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:28:50,984 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:28:50,991 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:28:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:28:51,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157494094] [2021-01-06 11:28:51,059 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:28:51,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376941264] [2021-01-06 11:28:51,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:28:51,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2021-01-06 11:28:51,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667406272] [2021-01-06 11:28:51,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 11:28:51,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:28:51,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 11:28:51,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2021-01-06 11:28:51,062 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 25 states. [2021-01-06 11:28:53,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:28:53,060 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2021-01-06 11:28:53,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-06 11:28:53,060 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 37 [2021-01-06 11:28:53,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:28:53,062 INFO L225 Difference]: With dead ends: 69 [2021-01-06 11:28:53,062 INFO L226 Difference]: Without dead ends: 65 [2021-01-06 11:28:53,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2021-01-06 11:28:53,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-01-06 11:28:53,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2021-01-06 11:28:53,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-01-06 11:28:53,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2021-01-06 11:28:53,074 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 37 [2021-01-06 11:28:53,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:28:53,074 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2021-01-06 11:28:53,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 11:28:53,074 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2021-01-06 11:28:53,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-01-06 11:28:53,075 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:28:53,076 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:28:53,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:28:53,289 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:28:53,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:28:53,290 INFO L82 PathProgramCache]: Analyzing trace with hash 2131981894, now seen corresponding path program 5 times [2021-01-06 11:28:53,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:28:53,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055512516] [2021-01-06 11:28:53,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:28:53,348 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:28:53,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013224490] [2021-01-06 11:28:53,351 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 11:28:53,485 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 11:28:53,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:28:53,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 11:28:53,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:28:53,599 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-01-06 11:28:53,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055512516] [2021-01-06 11:28:53,599 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:28:53,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013224490] [2021-01-06 11:28:53,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:28:53,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 11:28:53,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216956568] [2021-01-06 11:28:53,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 11:28:53,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:28:53,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 11:28:53,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-06 11:28:53,603 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand 9 states. [2021-01-06 11:28:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:28:54,026 INFO L93 Difference]: Finished difference Result 109 states and 125 transitions. [2021-01-06 11:28:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 11:28:54,027 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2021-01-06 11:28:54,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:28:54,028 INFO L225 Difference]: With dead ends: 109 [2021-01-06 11:28:54,028 INFO L226 Difference]: Without dead ends: 84 [2021-01-06 11:28:54,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-01-06 11:28:54,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-01-06 11:28:54,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 61. [2021-01-06 11:28:54,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-01-06 11:28:54,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2021-01-06 11:28:54,040 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 39 [2021-01-06 11:28:54,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:28:54,041 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2021-01-06 11:28:54,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 11:28:54,041 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2021-01-06 11:28:54,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-01-06 11:28:54,042 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:28:54,042 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:28:54,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-01-06 11:28:54,257 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:28:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:28:54,258 INFO L82 PathProgramCache]: Analyzing trace with hash -762945914, now seen corresponding path program 6 times [2021-01-06 11:28:54,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:28:54,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990320709] [2021-01-06 11:28:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:28:54,313 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:28:54,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603808430] [2021-01-06 11:28:54,314 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 11:28:54,396 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-01-06 11:28:54,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:28:54,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 11:28:54,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:28:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-01-06 11:28:54,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990320709] [2021-01-06 11:28:54,514 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:28:54,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603808430] [2021-01-06 11:28:54,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:28:54,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 11:28:54,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894473958] [2021-01-06 11:28:54,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 11:28:54,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:28:54,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 11:28:54,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-06 11:28:54,517 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand 9 states. [2021-01-06 11:28:54,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:28:54,788 INFO L93 Difference]: Finished difference Result 107 states and 118 transitions. [2021-01-06 11:28:54,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 11:28:54,789 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2021-01-06 11:28:54,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:28:54,790 INFO L225 Difference]: With dead ends: 107 [2021-01-06 11:28:54,791 INFO L226 Difference]: Without dead ends: 53 [2021-01-06 11:28:54,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-01-06 11:28:54,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-01-06 11:28:54,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2021-01-06 11:28:54,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-01-06 11:28:54,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-01-06 11:28:54,801 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 39 [2021-01-06 11:28:54,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:28:54,801 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-01-06 11:28:54,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 11:28:54,801 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-01-06 11:28:54,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-06 11:28:54,802 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:28:54,802 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:28:55,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:28:55,017 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:28:55,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:28:55,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1373102066, now seen corresponding path program 7 times [2021-01-06 11:28:55,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:28:55,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957822431] [2021-01-06 11:28:55,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:28:55,071 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:28:55,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1638899950] [2021-01-06 11:28:55,071 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 11:28:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:28:55,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 65 conjunts are in the unsatisfiable core [2021-01-06 11:28:55,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:28:55,227 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 11:28:55,233 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:55,244 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:55,250 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 11:28:55,251 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:55,262 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:55,263 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 11:28:55,263 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2021-01-06 11:28:55,296 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 11:28:55,298 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:55,311 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:55,313 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:55,313 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2021-01-06 11:28:55,381 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:55,381 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 11:28:55,384 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:55,450 INFO L625 ElimStorePlain]: treesize reduction 20, result has 64.3 percent of original size [2021-01-06 11:28:55,451 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:55,452 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2021-01-06 11:28:55,578 INFO L348 Elim1Store]: treesize reduction 10, result has 87.7 percent of original size [2021-01-06 11:28:55,584 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 11:28:55,588 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:55,646 INFO L625 ElimStorePlain]: treesize reduction 42, result has 53.3 percent of original size [2021-01-06 11:28:55,648 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:55,648 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2021-01-06 11:28:55,881 INFO L348 Elim1Store]: treesize reduction 32, result has 56.2 percent of original size [2021-01-06 11:28:55,881 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 11:28:55,885 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:55,938 INFO L625 ElimStorePlain]: treesize reduction 48, result has 52.9 percent of original size [2021-01-06 11:28:55,939 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:55,940 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:71, output treesize:54 [2021-01-06 11:28:56,130 INFO L348 Elim1Store]: treesize reduction 49, result has 63.2 percent of original size [2021-01-06 11:28:56,131 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 153 [2021-01-06 11:28:56,138 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:56,203 INFO L625 ElimStorePlain]: treesize reduction 130, result has 35.0 percent of original size [2021-01-06 11:28:56,204 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:56,204 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:80, output treesize:70 [2021-01-06 11:28:56,361 INFO L348 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-01-06 11:28:56,361 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 68 treesize of output 49 [2021-01-06 11:28:56,363 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:56,386 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:56,387 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:56,387 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:73 [2021-01-06 11:28:56,661 INFO L348 Elim1Store]: treesize reduction 32, result has 77.5 percent of original size [2021-01-06 11:28:56,661 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 78 treesize of output 146 [2021-01-06 11:28:56,669 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:56,741 INFO L625 ElimStorePlain]: treesize reduction 75, result has 40.9 percent of original size [2021-01-06 11:28:56,742 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:56,743 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:52 [2021-01-06 11:28:56,994 INFO L348 Elim1Store]: treesize reduction 32, result has 77.5 percent of original size [2021-01-06 11:28:56,995 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 142 [2021-01-06 11:28:56,999 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:57,067 INFO L625 ElimStorePlain]: treesize reduction 75, result has 40.9 percent of original size [2021-01-06 11:28:57,070 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:57,070 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:52 [2021-01-06 11:28:57,254 INFO L348 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-01-06 11:28:57,255 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 5 case distinctions, treesize of input 52 treesize of output 47 [2021-01-06 11:28:57,261 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:57,281 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:57,282 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:57,282 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:43 [2021-01-06 11:28:57,641 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-01-06 11:28:57,642 INFO L348 Elim1Store]: treesize reduction 32, result has 83.0 percent of original size [2021-01-06 11:28:57,643 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 62 treesize of output 188 [2021-01-06 11:28:57,649 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:57,734 INFO L625 ElimStorePlain]: treesize reduction 138, result has 26.6 percent of original size [2021-01-06 11:28:57,736 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:57,736 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:50 [2021-01-06 11:28:58,112 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-01-06 11:28:58,113 INFO L348 Elim1Store]: treesize reduction 32, result has 83.0 percent of original size [2021-01-06 11:28:58,113 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 62 treesize of output 188 [2021-01-06 11:28:58,121 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:58,202 INFO L625 ElimStorePlain]: treesize reduction 140, result has 25.5 percent of original size [2021-01-06 11:28:58,206 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:58,207 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:48 [2021-01-06 11:28:58,444 INFO L348 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2021-01-06 11:28:58,445 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 58 treesize of output 47 [2021-01-06 11:28:58,447 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:58,469 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:58,470 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:58,470 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:49 [2021-01-06 11:28:58,714 INFO L348 Elim1Store]: treesize reduction 32, result has 56.2 percent of original size [2021-01-06 11:28:58,714 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 64 treesize of output 98 [2021-01-06 11:28:58,717 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:58,767 INFO L625 ElimStorePlain]: treesize reduction 50, result has 54.5 percent of original size [2021-01-06 11:28:58,769 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:58,769 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:77, output treesize:60 [2021-01-06 11:28:59,074 INFO L348 Elim1Store]: treesize reduction 29, result has 67.0 percent of original size [2021-01-06 11:28:59,075 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 123 [2021-01-06 11:28:59,082 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:59,144 INFO L625 ElimStorePlain]: treesize reduction 34, result has 64.9 percent of original size [2021-01-06 11:28:59,146 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:28:59,146 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:87, output treesize:63 [2021-01-06 11:28:59,418 INFO L348 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-01-06 11:28:59,419 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 11:28:59,422 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:28:59,442 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:28:59,445 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 11:28:59,445 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:74, output treesize:58 [2021-01-06 11:28:59,613 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:28:59,616 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:28:59,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:28:59,628 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:28:59,635 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:28:59,637 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-06 11:28:59,643 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:28:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:28:59,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957822431] [2021-01-06 11:28:59,721 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:28:59,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638899950] [2021-01-06 11:28:59,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:28:59,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2021-01-06 11:28:59,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841999625] [2021-01-06 11:28:59,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-01-06 11:28:59,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:28:59,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-01-06 11:28:59,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1218, Unknown=0, NotChecked=0, Total=1332 [2021-01-06 11:28:59,725 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 37 states. [2021-01-06 11:29:05,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:05,191 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2021-01-06 11:29:05,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-06 11:29:05,192 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 47 [2021-01-06 11:29:05,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:05,193 INFO L225 Difference]: With dead ends: 87 [2021-01-06 11:29:05,193 INFO L226 Difference]: Without dead ends: 83 [2021-01-06 11:29:05,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 937 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=342, Invalid=4628, Unknown=0, NotChecked=0, Total=4970 [2021-01-06 11:29:05,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-01-06 11:29:05,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2021-01-06 11:29:05,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2021-01-06 11:29:05,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2021-01-06 11:29:05,210 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 47 [2021-01-06 11:29:05,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:05,211 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2021-01-06 11:29:05,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2021-01-06 11:29:05,211 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2021-01-06 11:29:05,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-06 11:29:05,213 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:05,213 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:05,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:05,416 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:05,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:05,417 INFO L82 PathProgramCache]: Analyzing trace with hash -2056075376, now seen corresponding path program 8 times [2021-01-06 11:29:05,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:05,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047540824] [2021-01-06 11:29:05,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:05,462 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:05,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414633336] [2021-01-06 11:29:05,462 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 11:29:05,545 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:29:05,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:05,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjunts are in the unsatisfiable core [2021-01-06 11:29:05,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-01-06 11:29:05,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047540824] [2021-01-06 11:29:05,678 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:05,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414633336] [2021-01-06 11:29:05,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:05,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-01-06 11:29:05,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146344321] [2021-01-06 11:29:05,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 11:29:05,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:05,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 11:29:05,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-01-06 11:29:05,680 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 11 states. [2021-01-06 11:29:05,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:05,996 INFO L93 Difference]: Finished difference Result 172 states and 190 transitions. [2021-01-06 11:29:05,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-06 11:29:05,997 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2021-01-06 11:29:05,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:05,998 INFO L225 Difference]: With dead ends: 172 [2021-01-06 11:29:05,999 INFO L226 Difference]: Without dead ends: 97 [2021-01-06 11:29:06,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 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 11:29:06,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-01-06 11:29:06,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 80. [2021-01-06 11:29:06,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2021-01-06 11:29:06,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2021-01-06 11:29:06,013 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 49 [2021-01-06 11:29:06,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:06,013 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2021-01-06 11:29:06,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 11:29:06,013 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2021-01-06 11:29:06,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-06 11:29:06,014 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:06,015 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:06,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-06 11:29:06,226 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:06,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:06,227 INFO L82 PathProgramCache]: Analyzing trace with hash 449756880, now seen corresponding path program 9 times [2021-01-06 11:29:06,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:06,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332282445] [2021-01-06 11:29:06,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:06,248 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:06,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2086306580] [2021-01-06 11:29:06,248 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 11:29:06,549 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-01-06 11:29:06,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:06,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjunts are in the unsatisfiable core [2021-01-06 11:29:06,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:06,699 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-01-06 11:29:06,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332282445] [2021-01-06 11:29:06,699 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:06,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086306580] [2021-01-06 11:29:06,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:06,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-01-06 11:29:06,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942774992] [2021-01-06 11:29:06,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-06 11:29:06,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:06,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-06 11:29:06,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-01-06 11:29:06,702 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 11 states. [2021-01-06 11:29:07,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:07,030 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2021-01-06 11:29:07,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 11:29:07,031 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2021-01-06 11:29:07,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:07,032 INFO L225 Difference]: With dead ends: 90 [2021-01-06 11:29:07,032 INFO L226 Difference]: Without dead ends: 62 [2021-01-06 11:29:07,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 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 11:29:07,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-01-06 11:29:07,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2021-01-06 11:29:07,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-01-06 11:29:07,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-01-06 11:29:07,042 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 49 [2021-01-06 11:29:07,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:07,042 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-01-06 11:29:07,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-06 11:29:07,042 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-01-06 11:29:07,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-06 11:29:07,043 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:07,043 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:07,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:07,259 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:07,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:07,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1464682664, now seen corresponding path program 10 times [2021-01-06 11:29:07,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:07,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465288013] [2021-01-06 11:29:07,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:07,308 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:07,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [175624612] [2021-01-06 11:29:07,309 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 11:29:07,392 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:29:07,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:07,395 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 76 conjunts are in the unsatisfiable core [2021-01-06 11:29:07,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:07,421 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 11:29:07,422 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,431 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:07,432 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,433 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2021-01-06 11:29:07,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:07,455 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 11:29:07,456 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,466 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:07,467 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,467 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2021-01-06 11:29:07,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:07,527 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:07,528 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 11:29:07,530 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,567 INFO L625 ElimStorePlain]: treesize reduction 20, result has 63.0 percent of original size [2021-01-06 11:29:07,568 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,568 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2021-01-06 11:29:07,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:07,699 INFO L348 Elim1Store]: treesize reduction 10, result has 87.7 percent of original size [2021-01-06 11:29:07,700 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 11:29:07,703 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,765 INFO L625 ElimStorePlain]: treesize reduction 42, result has 50.6 percent of original size [2021-01-06 11:29:07,766 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,766 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:43 [2021-01-06 11:29:07,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:07,905 INFO L348 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-01-06 11:29:07,905 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 11:29:07,907 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,930 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:07,931 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:07,932 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:54, output treesize:50 [2021-01-06 11:29:08,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:08,115 INFO L348 Elim1Store]: treesize reduction 66, result has 45.5 percent of original size [2021-01-06 11:29:08,116 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 11:29:08,120 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:08,186 INFO L625 ElimStorePlain]: treesize reduction 88, result has 40.9 percent of original size [2021-01-06 11:29:08,187 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:08,187 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:61 [2021-01-06 11:29:08,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:08,442 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2021-01-06 11:29:08,443 INFO L348 Elim1Store]: treesize reduction 83, result has 57.7 percent of original size [2021-01-06 11:29:08,443 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 194 [2021-01-06 11:29:08,450 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:08,551 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 39 [2021-01-06 11:29:08,552 INFO L625 ElimStorePlain]: treesize reduction 188, result has 27.7 percent of original size [2021-01-06 11:29:08,553 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:08,554 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:87, output treesize:72 [2021-01-06 11:29:08,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:08,911 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2021-01-06 11:29:08,912 INFO L348 Elim1Store]: treesize reduction 118, result has 59.2 percent of original size [2021-01-06 11:29:08,912 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 266 [2021-01-06 11:29:08,927 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:09,048 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 37 [2021-01-06 11:29:09,048 INFO L625 ElimStorePlain]: treesize reduction 309, result has 19.5 percent of original size [2021-01-06 11:29:09,049 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:09,049 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:98, output treesize:75 [2021-01-06 11:29:09,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:09,235 INFO L348 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-01-06 11:29:09,236 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 80 treesize of output 62 [2021-01-06 11:29:09,238 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:09,260 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:09,261 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:09,261 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:88, output treesize:50 [2021-01-06 11:29:09,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:09,590 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-01-06 11:29:09,591 INFO L348 Elim1Store]: treesize reduction 66, result has 69.3 percent of original size [2021-01-06 11:29:09,591 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 11:29:09,597 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:09,693 INFO L625 ElimStorePlain]: treesize reduction 97, result has 35.3 percent of original size [2021-01-06 11:29:09,695 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:09,695 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:53 [2021-01-06 11:29:09,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:10,061 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-01-06 11:29:10,062 INFO L348 Elim1Store]: treesize reduction 66, result has 69.3 percent of original size [2021-01-06 11:29:10,062 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 11:29:10,069 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:10,161 INFO L625 ElimStorePlain]: treesize reduction 95, result has 36.7 percent of original size [2021-01-06 11:29:10,162 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:10,165 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:55 [2021-01-06 11:29:10,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:10,548 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-01-06 11:29:10,549 INFO L348 Elim1Store]: treesize reduction 66, result has 69.3 percent of original size [2021-01-06 11:29:10,549 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 11:29:10,555 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:10,650 INFO L625 ElimStorePlain]: treesize reduction 95, result has 36.7 percent of original size [2021-01-06 11:29:10,651 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:10,651 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:55 [2021-01-06 11:29:10,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:10,946 INFO L348 Elim1Store]: treesize reduction 138, result has 15.9 percent of original size [2021-01-06 11:29:10,947 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 55 treesize of output 57 [2021-01-06 11:29:10,949 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:10,975 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:10,976 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:10,976 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:50 [2021-01-06 11:29:11,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:11,511 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-06 11:29:11,512 INFO L348 Elim1Store]: treesize reduction 66, result has 76.2 percent of original size [2021-01-06 11:29:11,512 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 71 treesize of output 246 [2021-01-06 11:29:11,521 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:11,631 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2021-01-06 11:29:11,631 INFO L625 ElimStorePlain]: treesize reduction 186, result has 23.5 percent of original size [2021-01-06 11:29:11,632 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:11,632 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:57 [2021-01-06 11:29:11,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:12,150 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2021-01-06 11:29:12,150 INFO L348 Elim1Store]: treesize reduction 139, result has 56.2 percent of original size [2021-01-06 11:29:12,151 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 213 [2021-01-06 11:29:12,157 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,246 INFO L625 ElimStorePlain]: treesize reduction 142, result has 29.7 percent of original size [2021-01-06 11:29:12,247 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,248 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:87, output treesize:60 [2021-01-06 11:29:12,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:12,815 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-06 11:29:12,816 INFO L348 Elim1Store]: treesize reduction 66, result has 76.2 percent of original size [2021-01-06 11:29:12,816 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 71 treesize of output 246 [2021-01-06 11:29:12,831 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,932 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2021-01-06 11:29:12,932 INFO L625 ElimStorePlain]: treesize reduction 188, result has 22.6 percent of original size [2021-01-06 11:29:12,933 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:12,933 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:55 [2021-01-06 11:29:13,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:13,302 INFO L348 Elim1Store]: treesize reduction 144, result has 15.3 percent of original size [2021-01-06 11:29:13,302 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 11:29:13,304 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:13,328 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:13,329 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:13,330 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:50 [2021-01-06 11:29:13,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:13,720 INFO L348 Elim1Store]: treesize reduction 66, result has 45.5 percent of original size [2021-01-06 11:29:13,720 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 11:29:13,727 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:13,795 INFO L625 ElimStorePlain]: treesize reduction 72, result has 46.7 percent of original size [2021-01-06 11:29:13,796 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:13,796 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:63 [2021-01-06 11:29:14,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:14,207 INFO L348 Elim1Store]: treesize reduction 66, result has 45.5 percent of original size [2021-01-06 11:29:14,208 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 73 treesize of output 126 [2021-01-06 11:29:14,212 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,284 INFO L625 ElimStorePlain]: treesize reduction 92, result has 45.9 percent of original size [2021-01-06 11:29:14,285 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,285 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:78 [2021-01-06 11:29:14,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:14,775 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2021-01-06 11:29:14,776 INFO L348 Elim1Store]: treesize reduction 83, result has 57.7 percent of original size [2021-01-06 11:29:14,776 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 94 treesize of output 199 [2021-01-06 11:29:14,783 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,882 INFO L625 ElimStorePlain]: treesize reduction 204, result has 23.6 percent of original size [2021-01-06 11:29:14,882 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:14,883 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:105, output treesize:63 [2021-01-06 11:29:15,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:15,371 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2021-01-06 11:29:15,372 INFO L348 Elim1Store]: treesize reduction 83, result has 57.7 percent of original size [2021-01-06 11:29:15,373 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 78 treesize of output 196 [2021-01-06 11:29:15,378 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:15,469 INFO L625 ElimStorePlain]: treesize reduction 153, result has 33.2 percent of original size [2021-01-06 11:29:15,472 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 11:29:15,472 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:89, output treesize:76 [2021-01-06 11:29:16,125 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:16,128 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:16,130 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:16,134 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:16,138 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:16,141 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-06 11:29:16,146 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:29:16,339 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:29:16,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465288013] [2021-01-06 11:29:16,339 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:16,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175624612] [2021-01-06 11:29:16,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:16,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2021-01-06 11:29:16,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134947084] [2021-01-06 11:29:16,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-01-06 11:29:16,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:16,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-01-06 11:29:16,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1883, Unknown=0, NotChecked=0, Total=1980 [2021-01-06 11:29:16,342 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 45 states. [2021-01-06 11:29:20,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:20,164 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2021-01-06 11:29:20,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-01-06 11:29:20,165 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 57 [2021-01-06 11:29:20,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:20,166 INFO L225 Difference]: With dead ends: 95 [2021-01-06 11:29:20,166 INFO L226 Difference]: Without dead ends: 91 [2021-01-06 11:29:20,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=111, Invalid=2145, Unknown=0, NotChecked=0, Total=2256 [2021-01-06 11:29:20,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-01-06 11:29:20,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 83. [2021-01-06 11:29:20,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-01-06 11:29:20,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2021-01-06 11:29:20,180 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 57 [2021-01-06 11:29:20,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:20,181 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2021-01-06 11:29:20,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 45 states. [2021-01-06 11:29:20,181 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2021-01-06 11:29:20,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-06 11:29:20,182 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:20,182 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:20,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:20,398 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:20,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:20,399 INFO L82 PathProgramCache]: Analyzing trace with hash 919192666, now seen corresponding path program 11 times [2021-01-06 11:29:20,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:20,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708849236] [2021-01-06 11:29:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:20,441 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:20,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875635065] [2021-01-06 11:29:20,441 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 11:29:21,146 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-01-06 11:29:21,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:21,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 11:29:21,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:21,362 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-01-06 11:29:21,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708849236] [2021-01-06 11:29:21,363 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:21,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875635065] [2021-01-06 11:29:21,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:21,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-01-06 11:29:21,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353715224] [2021-01-06 11:29:21,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-06 11:29:21,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:21,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-06 11:29:21,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-01-06 11:29:21,365 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand 13 states. [2021-01-06 11:29:21,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:21,850 INFO L93 Difference]: Finished difference Result 194 states and 211 transitions. [2021-01-06 11:29:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-06 11:29:21,850 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 59 [2021-01-06 11:29:21,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:21,853 INFO L225 Difference]: With dead ends: 194 [2021-01-06 11:29:21,853 INFO L226 Difference]: Without dead ends: 102 [2021-01-06 11:29:21,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 53 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 11:29:21,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-01-06 11:29:21,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 86. [2021-01-06 11:29:21,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2021-01-06 11:29:21,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2021-01-06 11:29:21,873 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 59 [2021-01-06 11:29:21,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:21,873 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2021-01-06 11:29:21,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-01-06 11:29:21,873 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2021-01-06 11:29:21,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-06 11:29:21,874 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:21,874 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:22,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-06 11:29:22,088 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:22,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:22,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1431875484, now seen corresponding path program 12 times [2021-01-06 11:29:22,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:22,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734918838] [2021-01-06 11:29:22,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:22,112 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:22,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305025486] [2021-01-06 11:29:22,112 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 11:29:22,559 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-01-06 11:29:22,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:22,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 11:29:22,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:22,760 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-01-06 11:29:22,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734918838] [2021-01-06 11:29:22,760 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:22,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305025486] [2021-01-06 11:29:22,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:22,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-01-06 11:29:22,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763534842] [2021-01-06 11:29:22,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-06 11:29:22,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:22,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-06 11:29:22,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-01-06 11:29:22,761 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand 13 states. [2021-01-06 11:29:23,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:23,198 INFO L93 Difference]: Finished difference Result 96 states and 102 transitions. [2021-01-06 11:29:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 11:29:23,199 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 61 [2021-01-06 11:29:23,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:23,200 INFO L225 Difference]: With dead ends: 96 [2021-01-06 11:29:23,200 INFO L226 Difference]: Without dead ends: 72 [2021-01-06 11:29:23,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 50 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 11:29:23,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-01-06 11:29:23,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2021-01-06 11:29:23,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-01-06 11:29:23,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2021-01-06 11:29:23,211 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 61 [2021-01-06 11:29:23,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:23,211 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2021-01-06 11:29:23,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-01-06 11:29:23,211 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2021-01-06 11:29:23,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 11:29:23,212 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:23,212 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:23,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-01-06 11:29:23,426 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:23,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:23,427 INFO L82 PathProgramCache]: Analyzing trace with hash 365787682, now seen corresponding path program 13 times [2021-01-06 11:29:23,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:23,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47850792] [2021-01-06 11:29:23,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:23,452 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:23,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938036105] [2021-01-06 11:29:23,453 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 11:29:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:29:23,564 WARN L261 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 99 conjunts are in the unsatisfiable core [2021-01-06 11:29:23,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:23,602 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 11:29:23,604 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,619 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:23,625 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 11:29:23,626 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,639 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:23,640 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 11:29:23,640 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2021-01-06 11:29:23,668 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 11:29:23,671 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,687 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:23,688 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,688 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2021-01-06 11:29:23,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,749 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-01-06 11:29:23,750 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,767 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:23,768 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,768 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:39 [2021-01-06 11:29:23,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,866 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-01-06 11:29:23,868 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,889 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:23,890 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:23,890 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2021-01-06 11:29:23,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:23,992 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-01-06 11:29:23,994 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:24,021 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:24,022 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:24,022 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:61, output treesize:57 [2021-01-06 11:29:24,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,159 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 71 [2021-01-06 11:29:24,161 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:24,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:24,199 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:24,199 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:72 [2021-01-06 11:29:24,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,498 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:24,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,507 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 75 [2021-01-06 11:29:24,511 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:24,544 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:24,545 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:24,546 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:92, output treesize:79 [2021-01-06 11:29:24,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:24,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,731 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 73 [2021-01-06 11:29:24,733 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:24,770 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:24,771 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:24,772 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:79 [2021-01-06 11:29:24,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:24,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:24,979 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 75 [2021-01-06 11:29:24,982 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,023 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:25,024 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,024 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:79 [2021-01-06 11:29:25,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,233 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:25,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,240 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 75 [2021-01-06 11:29:25,243 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,277 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:25,278 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,279 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:77 [2021-01-06 11:29:25,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,515 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 73 [2021-01-06 11:29:25,518 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,551 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:25,553 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,554 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:70 [2021-01-06 11:29:25,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:25,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:25,803 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 75 [2021-01-06 11:29:25,805 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,843 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:25,844 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:25,844 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:88, output treesize:77 [2021-01-06 11:29:26,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,102 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:26,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,105 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 78 [2021-01-06 11:29:26,107 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,144 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:26,145 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,145 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:74 [2021-01-06 11:29:26,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,397 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:26,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,407 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 79 [2021-01-06 11:29:26,411 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,444 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:26,445 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,445 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:90, output treesize:77 [2021-01-06 11:29:26,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:26,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:26,738 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 71 [2021-01-06 11:29:26,741 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,771 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:26,772 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:26,772 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:69 [2021-01-06 11:29:27,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,045 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 69 [2021-01-06 11:29:27,046 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:27,076 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:27,077 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:27,078 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:77, output treesize:64 [2021-01-06 11:29:27,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,361 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:27,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,367 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 75 [2021-01-06 11:29:27,370 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:27,405 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:27,406 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:27,406 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:71 [2021-01-06 11:29:27,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:27,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:27,713 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 78 [2021-01-06 11:29:27,715 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:27,750 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:27,751 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:27,751 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:101, output treesize:78 [2021-01-06 11:29:28,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:28,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,078 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 73 [2021-01-06 11:29:28,080 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:28,114 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:28,116 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:28,116 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:81 [2021-01-06 11:29:28,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,451 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:28,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,461 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 73 [2021-01-06 11:29:28,466 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:28,498 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:28,500 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:28,500 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:108, output treesize:81 [2021-01-06 11:29:28,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:28,847 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 71 [2021-01-06 11:29:28,849 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:28,879 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:28,880 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:28,880 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:101, output treesize:64 [2021-01-06 11:29:29,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,229 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:29,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,240 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 75 [2021-01-06 11:29:29,243 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:29,274 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:29,275 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:29,275 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:92, output treesize:71 [2021-01-06 11:29:29,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:29,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:29,658 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 73 [2021-01-06 11:29:29,661 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:29,697 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:29,698 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:29,698 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:92, output treesize:79 [2021-01-06 11:29:30,085 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:30,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,100 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 78 [2021-01-06 11:29:30,101 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:30,139 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:30,140 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:30,140 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:106, output treesize:78 [2021-01-06 11:29:30,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:29:30,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:30,556 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 75 [2021-01-06 11:29:30,561 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:30,599 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:30,600 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:30,600 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:98, output treesize:77 [2021-01-06 11:29:31,032 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 65 [2021-01-06 11:29:31,035 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:31,059 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:31,061 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-06 11:29:31,062 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:59 [2021-01-06 11:29:31,327 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:31,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:31,332 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:31,335 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:29:31,339 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 11:29:31,341 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-06 11:29:31,344 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-06 11:29:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:29:31,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47850792] [2021-01-06 11:29:31,513 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:31,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938036105] [2021-01-06 11:29:31,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:31,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2021-01-06 11:29:31,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041140512] [2021-01-06 11:29:31,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-01-06 11:29:31,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:31,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-01-06 11:29:31,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=3016, Unknown=0, NotChecked=0, Total=3192 [2021-01-06 11:29:31,516 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 57 states. [2021-01-06 11:29:44,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:44,539 INFO L93 Difference]: Finished difference Result 123 states and 131 transitions. [2021-01-06 11:29:44,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-01-06 11:29:44,539 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 67 [2021-01-06 11:29:44,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:44,540 INFO L225 Difference]: With dead ends: 123 [2021-01-06 11:29:44,540 INFO L226 Difference]: Without dead ends: 119 [2021-01-06 11:29:44,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2251 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=528, Invalid=11682, Unknown=0, NotChecked=0, Total=12210 [2021-01-06 11:29:44,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-01-06 11:29:44,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 109. [2021-01-06 11:29:44,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-01-06 11:29:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2021-01-06 11:29:44,556 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 67 [2021-01-06 11:29:44,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:44,557 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2021-01-06 11:29:44,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 57 states. [2021-01-06 11:29:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2021-01-06 11:29:44,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 11:29:44,558 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:44,558 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:44,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-01-06 11:29:44,763 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:44,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:44,764 INFO L82 PathProgramCache]: Analyzing trace with hash -2041574236, now seen corresponding path program 14 times [2021-01-06 11:29:44,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:44,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491581893] [2021-01-06 11:29:44,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:44,796 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:44,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55710877] [2021-01-06 11:29:44,798 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 11:29:44,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 11:29:44,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:44,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 11:29:44,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-01-06 11:29:45,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491581893] [2021-01-06 11:29:45,143 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:45,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55710877] [2021-01-06 11:29:45,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:45,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-01-06 11:29:45,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720070716] [2021-01-06 11:29:45,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 11:29:45,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:45,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 11:29:45,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-01-06 11:29:45,144 INFO L87 Difference]: Start difference. First operand 109 states and 117 transitions. Second operand 15 states. [2021-01-06 11:29:45,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:45,756 INFO L93 Difference]: Finished difference Result 236 states and 254 transitions. [2021-01-06 11:29:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-06 11:29:45,757 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 69 [2021-01-06 11:29:45,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:45,758 INFO L225 Difference]: With dead ends: 236 [2021-01-06 11:29:45,758 INFO L226 Difference]: Without dead ends: 129 [2021-01-06 11:29:45,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 55 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 11:29:45,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-01-06 11:29:45,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 112. [2021-01-06 11:29:45,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2021-01-06 11:29:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 119 transitions. [2021-01-06 11:29:45,774 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 119 transitions. Word has length 69 [2021-01-06 11:29:45,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:45,775 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 119 transitions. [2021-01-06 11:29:45,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 11:29:45,775 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 119 transitions. [2021-01-06 11:29:45,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 11:29:45,776 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:45,776 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:45,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:29:45,977 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:45,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:45,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1495063580, now seen corresponding path program 15 times [2021-01-06 11:29:45,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:45,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492116688] [2021-01-06 11:29:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:46,016 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:46,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1729685977] [2021-01-06 11:29:46,017 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 11:29:46,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-01-06 11:29:46,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:46,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 11:29:46,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-01-06 11:29:46,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492116688] [2021-01-06 11:29:46,976 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:29:46,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729685977] [2021-01-06 11:29:46,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:29:46,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-01-06 11:29:46,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891763864] [2021-01-06 11:29:46,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 11:29:46,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:29:46,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 11:29:46,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-01-06 11:29:46,978 INFO L87 Difference]: Start difference. First operand 112 states and 119 transitions. Second operand 15 states. [2021-01-06 11:29:47,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:29:47,557 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2021-01-06 11:29:47,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-06 11:29:47,563 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 69 [2021-01-06 11:29:47,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:29:47,564 INFO L225 Difference]: With dead ends: 122 [2021-01-06 11:29:47,564 INFO L226 Difference]: Without dead ends: 82 [2021-01-06 11:29:47,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 55 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 11:29:47,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-01-06 11:29:47,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2021-01-06 11:29:47,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-01-06 11:29:47,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 82 transitions. [2021-01-06 11:29:47,575 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 82 transitions. Word has length 69 [2021-01-06 11:29:47,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:29:47,576 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 82 transitions. [2021-01-06 11:29:47,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 11:29:47,576 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 82 transitions. [2021-01-06 11:29:47,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-01-06 11:29:47,576 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:29:47,577 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:29:47,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-01-06 11:29:47,791 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:29:47,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:29:47,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1209010284, now seen corresponding path program 16 times [2021-01-06 11:29:47,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:29:47,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145019848] [2021-01-06 11:29:47,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:29:47,815 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:29:47,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2128248455] [2021-01-06 11:29:47,815 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 11:29:47,933 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 11:29:47,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:29:47,936 WARN L261 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 106 conjunts are in the unsatisfiable core [2021-01-06 11:29:47,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:29:47,955 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 11:29:47,956 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:47,965 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:47,966 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:47,966 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2021-01-06 11:29:47,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:47,990 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 11:29:47,991 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:48,005 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:48,006 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:48,007 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2021-01-06 11:29:48,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:48,080 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:48,081 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 11:29:48,084 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:48,132 INFO L625 ElimStorePlain]: treesize reduction 20, result has 63.0 percent of original size [2021-01-06 11:29:48,133 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:48,133 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2021-01-06 11:29:48,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:48,267 INFO L348 Elim1Store]: treesize reduction 52, result has 45.8 percent of original size [2021-01-06 11:29:48,267 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 11:29:48,270 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:48,329 INFO L625 ElimStorePlain]: treesize reduction 20, result has 69.7 percent of original size [2021-01-06 11:29:48,330 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:48,330 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-01-06 11:29:48,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:48,556 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2021-01-06 11:29:48,557 INFO L348 Elim1Store]: treesize reduction 32, result has 77.5 percent of original size [2021-01-06 11:29:48,558 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 11:29:48,564 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:48,660 INFO L625 ElimStorePlain]: treesize reduction 64, result has 44.8 percent of original size [2021-01-06 11:29:48,661 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:48,661 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:52 [2021-01-06 11:29:48,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:49,019 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-01-06 11:29:49,020 INFO L348 Elim1Store]: treesize reduction 66, result has 69.3 percent of original size [2021-01-06 11:29:49,021 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 11:29:49,028 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:49,148 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2021-01-06 11:29:49,149 INFO L625 ElimStorePlain]: treesize reduction 86, result has 41.5 percent of original size [2021-01-06 11:29:49,150 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:49,150 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:61 [2021-01-06 11:29:49,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:49,538 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 52 [2021-01-06 11:29:49,539 INFO L348 Elim1Store]: treesize reduction 163, result has 49.7 percent of original size [2021-01-06 11:29:49,539 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 11:29:49,544 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:49,678 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2021-01-06 11:29:49,678 INFO L625 ElimStorePlain]: treesize reduction 86, result has 46.9 percent of original size [2021-01-06 11:29:49,679 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:49,679 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:80, output treesize:76 [2021-01-06 11:29:50,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:50,222 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 46 [2021-01-06 11:29:50,223 INFO L348 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2021-01-06 11:29:50,223 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 11:29:50,229 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:50,346 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 46 [2021-01-06 11:29:50,347 INFO L625 ElimStorePlain]: treesize reduction 124, result has 39.8 percent of original size [2021-01-06 11:29:50,348 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:50,348 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:82 [2021-01-06 11:29:50,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:50,851 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 73 [2021-01-06 11:29:50,852 INFO L348 Elim1Store]: treesize reduction 187, result has 47.8 percent of original size [2021-01-06 11:29:50,853 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 276 [2021-01-06 11:29:50,862 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:51,040 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 49 [2021-01-06 11:29:51,041 INFO L625 ElimStorePlain]: treesize reduction 254, result has 26.8 percent of original size [2021-01-06 11:29:51,042 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:51,043 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:108, output treesize:93 [2021-01-06 11:29:51,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:51,715 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 100 [2021-01-06 11:29:51,716 INFO L348 Elim1Store]: treesize reduction 222, result has 53.8 percent of original size [2021-01-06 11:29:51,717 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 378 [2021-01-06 11:29:51,736 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:51,949 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 51 [2021-01-06 11:29:51,950 INFO L625 ElimStorePlain]: treesize reduction 437, result has 21.8 percent of original size [2021-01-06 11:29:51,951 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:51,952 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:122 [2021-01-06 11:29:52,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:52,438 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 46 [2021-01-06 11:29:52,439 INFO L348 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2021-01-06 11:29:52,439 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 115 treesize of output 182 [2021-01-06 11:29:52,445 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:52,573 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2021-01-06 11:29:52,574 INFO L625 ElimStorePlain]: treesize reduction 116, result has 46.0 percent of original size [2021-01-06 11:29:52,575 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:52,576 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:129, output treesize:99 [2021-01-06 11:29:52,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:53,141 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 73 [2021-01-06 11:29:53,142 INFO L348 Elim1Store]: treesize reduction 187, result has 47.8 percent of original size [2021-01-06 11:29:53,142 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 112 treesize of output 281 [2021-01-06 11:29:53,150 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:53,314 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 49 [2021-01-06 11:29:53,315 INFO L625 ElimStorePlain]: treesize reduction 327, result has 22.0 percent of original size [2021-01-06 11:29:53,316 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:53,316 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:126, output treesize:92 [2021-01-06 11:29:53,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:53,672 INFO L348 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-01-06 11:29:53,673 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 86 [2021-01-06 11:29:53,680 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:53,724 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:53,725 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:53,726 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:92 [2021-01-06 11:29:54,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:54,490 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2021-01-06 11:29:54,491 INFO L348 Elim1Store]: treesize reduction 170, result has 57.2 percent of original size [2021-01-06 11:29:54,491 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 96 treesize of output 271 [2021-01-06 11:29:54,497 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:54,665 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 44 [2021-01-06 11:29:54,666 INFO L625 ElimStorePlain]: treesize reduction 141, result has 36.2 percent of original size [2021-01-06 11:29:54,667 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:54,667 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:110, output treesize:80 [2021-01-06 11:29:55,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:55,459 WARN L197 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2021-01-06 11:29:55,460 INFO L348 Elim1Store]: treesize reduction 170, result has 57.2 percent of original size [2021-01-06 11:29:55,460 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 81 treesize of output 268 [2021-01-06 11:29:55,466 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:55,637 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2021-01-06 11:29:55,638 INFO L625 ElimStorePlain]: treesize reduction 139, result has 35.3 percent of original size [2021-01-06 11:29:55,638 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:55,639 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:76 [2021-01-06 11:29:56,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:56,493 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 63 [2021-01-06 11:29:56,494 INFO L348 Elim1Store]: treesize reduction 224, result has 47.2 percent of original size [2021-01-06 11:29:56,494 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 78 treesize of output 239 [2021-01-06 11:29:56,499 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:56,647 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 45 [2021-01-06 11:29:56,647 INFO L625 ElimStorePlain]: treesize reduction 117, result has 40.3 percent of original size [2021-01-06 11:29:56,648 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:56,648 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:92, output treesize:79 [2021-01-06 11:29:57,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:57,460 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2021-01-06 11:29:57,461 INFO L348 Elim1Store]: treesize reduction 170, result has 57.2 percent of original size [2021-01-06 11:29:57,461 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 11:29:57,470 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:57,654 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2021-01-06 11:29:57,655 INFO L625 ElimStorePlain]: treesize reduction 141, result has 34.4 percent of original size [2021-01-06 11:29:57,656 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:57,656 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:74 [2021-01-06 11:29:58,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:58,520 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2021-01-06 11:29:58,521 INFO L348 Elim1Store]: treesize reduction 170, result has 57.2 percent of original size [2021-01-06 11:29:58,522 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 11:29:58,526 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:58,726 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 44 [2021-01-06 11:29:58,726 INFO L625 ElimStorePlain]: treesize reduction 139, result has 35.3 percent of original size [2021-01-06 11:29:58,728 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:58,728 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:76 [2021-01-06 11:29:59,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:29:59,472 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 28 [2021-01-06 11:29:59,472 INFO L348 Elim1Store]: treesize reduction 294, result has 13.0 percent of original size [2021-01-06 11:29:59,473 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 73 treesize of output 81 [2021-01-06 11:29:59,476 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:29:59,532 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:29:59,533 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:29:59,533 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:71 [2021-01-06 11:30:00,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:00,741 WARN L197 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2021-01-06 11:30:00,741 INFO L348 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2021-01-06 11:30:00,742 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 89 treesize of output 362 [2021-01-06 11:30:00,749 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:00,954 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2021-01-06 11:30:00,955 INFO L625 ElimStorePlain]: treesize reduction 282, result has 21.7 percent of original size [2021-01-06 11:30:00,955 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:00,955 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:103, output treesize:78 [2021-01-06 11:30:01,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:02,237 WARN L197 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2021-01-06 11:30:02,238 INFO L348 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2021-01-06 11:30:02,238 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 89 treesize of output 362 [2021-01-06 11:30:02,259 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:02,453 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 44 [2021-01-06 11:30:02,453 INFO L625 ElimStorePlain]: treesize reduction 284, result has 21.1 percent of original size [2021-01-06 11:30:02,455 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:02,455 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:103, output treesize:76 [2021-01-06 11:30:03,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:03,775 WARN L197 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 75 [2021-01-06 11:30:03,776 INFO L348 Elim1Store]: treesize reduction 243, result has 53.4 percent of original size [2021-01-06 11:30:03,777 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 92 treesize of output 319 [2021-01-06 11:30:03,784 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:03,972 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 45 [2021-01-06 11:30:03,972 INFO L625 ElimStorePlain]: treesize reduction 236, result has 25.1 percent of original size [2021-01-06 11:30:03,973 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:03,973 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:106, output treesize:79 [2021-01-06 11:30:04,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:05,405 WARN L197 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 81 [2021-01-06 11:30:05,406 INFO L348 Elim1Store]: treesize reduction 170, result has 65.4 percent of original size [2021-01-06 11:30:05,406 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 89 treesize of output 362 [2021-01-06 11:30:05,413 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:05,653 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 44 [2021-01-06 11:30:05,653 INFO L625 ElimStorePlain]: treesize reduction 310, result has 20.5 percent of original size [2021-01-06 11:30:05,654 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:05,654 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:103, output treesize:80 [2021-01-06 11:30:06,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:07,156 WARN L197 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 74 [2021-01-06 11:30:07,157 INFO L348 Elim1Store]: treesize reduction 243, result has 53.4 percent of original size [2021-01-06 11:30:07,158 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 96 treesize of output 319 [2021-01-06 11:30:07,164 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:07,376 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2021-01-06 11:30:07,377 INFO L625 ElimStorePlain]: treesize reduction 258, result has 25.2 percent of original size [2021-01-06 11:30:07,378 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:07,378 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:110, output treesize:87 [2021-01-06 11:30:08,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:08,413 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 28 [2021-01-06 11:30:08,414 INFO L348 Elim1Store]: treesize reduction 304, result has 12.6 percent of original size [2021-01-06 11:30:08,414 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 93 treesize of output 83 [2021-01-06 11:30:08,417 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:08,481 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:08,482 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:08,482 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:104, output treesize:71 [2021-01-06 11:30:09,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:09,596 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 46 [2021-01-06 11:30:09,597 INFO L348 Elim1Store]: treesize reduction 170, result has 32.8 percent of original size [2021-01-06 11:30:09,597 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 11:30:09,606 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:09,791 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2021-01-06 11:30:09,792 INFO L625 ElimStorePlain]: treesize reduction 128, result has 40.7 percent of original size [2021-01-06 11:30:09,793 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:09,793 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:88 [2021-01-06 11:30:10,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:11,074 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 64 [2021-01-06 11:30:11,075 INFO L348 Elim1Store]: treesize reduction 137, result has 51.6 percent of original size [2021-01-06 11:30:11,075 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 101 treesize of output 246 [2021-01-06 11:30:11,085 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:11,271 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2021-01-06 11:30:11,272 INFO L625 ElimStorePlain]: treesize reduction 121, result has 45.0 percent of original size [2021-01-06 11:30:11,278 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:11,278 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:115, output treesize:99 [2021-01-06 11:30:12,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:12,790 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 87 [2021-01-06 11:30:12,791 INFO L348 Elim1Store]: treesize reduction 172, result has 56.2 percent of original size [2021-01-06 11:30:12,791 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 334 [2021-01-06 11:30:12,802 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:13,085 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2021-01-06 11:30:13,086 INFO L625 ElimStorePlain]: treesize reduction 220, result has 33.5 percent of original size [2021-01-06 11:30:13,088 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:13,088 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:111 [2021-01-06 11:30:14,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:14,777 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 91 [2021-01-06 11:30:14,778 INFO L348 Elim1Store]: treesize reduction 177, result has 57.2 percent of original size [2021-01-06 11:30:14,778 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 124 treesize of output 354 [2021-01-06 11:30:14,791 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:15,023 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 55 [2021-01-06 11:30:15,023 INFO L625 ElimStorePlain]: treesize reduction 254, result has 33.3 percent of original size [2021-01-06 11:30:15,024 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:15,025 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:138, output treesize:127 [2021-01-06 11:30:16,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:16,789 WARN L197 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 110 [2021-01-06 11:30:16,790 INFO L348 Elim1Store]: treesize reduction 248, result has 54.5 percent of original size [2021-01-06 11:30:16,791 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 140 treesize of output 429 [2021-01-06 11:30:16,802 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:17,042 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 55 [2021-01-06 11:30:17,043 INFO L625 ElimStorePlain]: treesize reduction 335, result has 28.0 percent of original size [2021-01-06 11:30:17,044 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:17,044 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:154, output treesize:130 [2021-01-06 11:30:18,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:30:18,445 INFO L348 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-01-06 11:30:18,445 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 118 treesize of output 90 [2021-01-06 11:30:18,447 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:18,506 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:18,508 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 11:30:18,508 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:129, output treesize:92 [2021-01-06 11:30:19,323 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:30:19,325 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:30:19,328 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:30:19,329 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:30:19,336 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:30:19,338 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-06 11:30:19,343 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-06 11:30:19,932 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:30:19,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145019848] [2021-01-06 11:30:19,932 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:30:19,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128248455] [2021-01-06 11:30:19,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:30:19,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2021-01-06 11:30:19,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262242752] [2021-01-06 11:30:19,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-01-06 11:30:19,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:30:19,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-01-06 11:30:19,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=4019, Unknown=0, NotChecked=0, Total=4160 [2021-01-06 11:30:19,936 INFO L87 Difference]: Start difference. First operand 78 states and 82 transitions. Second operand 65 states. [2021-01-06 11:30:33,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:30:33,542 INFO L93 Difference]: Finished difference Result 141 states and 149 transitions. [2021-01-06 11:30:33,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-01-06 11:30:33,543 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 77 [2021-01-06 11:30:33,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:30:33,544 INFO L225 Difference]: With dead ends: 141 [2021-01-06 11:30:33,544 INFO L226 Difference]: Without dead ends: 137 [2021-01-06 11:30:33,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=150, Invalid=4272, Unknown=0, NotChecked=0, Total=4422 [2021-01-06 11:30:33,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-01-06 11:30:33,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2021-01-06 11:30:33,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2021-01-06 11:30:33,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2021-01-06 11:30:33,564 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 77 [2021-01-06 11:30:33,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:30:33,565 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2021-01-06 11:30:33,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 65 states. [2021-01-06 11:30:33,565 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2021-01-06 11:30:33,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-01-06 11:30:33,566 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:30:33,566 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:30:33,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-06 11:30:33,781 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:30:33,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:30:33,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1338687378, now seen corresponding path program 17 times [2021-01-06 11:30:33,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:30:33,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449781335] [2021-01-06 11:30:33,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:30:33,803 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:30:33,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130733531] [2021-01-06 11:30:33,804 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 11:30:46,595 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-01-06 11:30:46,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:30:46,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 11:30:46,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:30:46,973 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-01-06 11:30:46,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449781335] [2021-01-06 11:30:46,974 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:30:46,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130733531] [2021-01-06 11:30:46,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:30:46,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-01-06 11:30:46,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362392760] [2021-01-06 11:30:46,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-01-06 11:30:46,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:30:46,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-01-06 11:30:46,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-01-06 11:30:46,976 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand 17 states. [2021-01-06 11:30:48,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:30:48,285 INFO L93 Difference]: Finished difference Result 213 states and 229 transitions. [2021-01-06 11:30:48,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-06 11:30:48,286 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79 [2021-01-06 11:30:48,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:30:48,287 INFO L225 Difference]: With dead ends: 213 [2021-01-06 11:30:48,288 INFO L226 Difference]: Without dead ends: 164 [2021-01-06 11:30:48,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 71 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 11:30:48,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-01-06 11:30:48,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 117. [2021-01-06 11:30:48,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2021-01-06 11:30:48,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 124 transitions. [2021-01-06 11:30:48,308 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 124 transitions. Word has length 79 [2021-01-06 11:30:48,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:30:48,308 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 124 transitions. [2021-01-06 11:30:48,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-01-06 11:30:48,308 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 124 transitions. [2021-01-06 11:30:48,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-01-06 11:30:48,309 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:30:48,309 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:30:48,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:30:48,524 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:30:48,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:30:48,525 INFO L82 PathProgramCache]: Analyzing trace with hash -2024019794, now seen corresponding path program 18 times [2021-01-06 11:30:48,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:30:48,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27686324] [2021-01-06 11:30:48,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:30:48,547 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:30:48,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [531539621] [2021-01-06 11:30:48,548 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 11:30:49,601 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-01-06 11:30:49,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 11:30:49,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 25 conjunts are in the unsatisfiable core [2021-01-06 11:30:49,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:30:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 60 proven. 36 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-01-06 11:30:50,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27686324] [2021-01-06 11:30:50,048 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:30:50,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531539621] [2021-01-06 11:30:50,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:30:50,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-01-06 11:30:50,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074749834] [2021-01-06 11:30:50,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 11:30:50,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:30:50,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 11:30:50,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2021-01-06 11:30:50,050 INFO L87 Difference]: Start difference. First operand 117 states and 124 transitions. Second operand 19 states. [2021-01-06 11:30:51,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:30:51,695 INFO L93 Difference]: Finished difference Result 203 states and 214 transitions. [2021-01-06 11:30:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-06 11:30:51,697 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 79 [2021-01-06 11:30:51,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:30:51,698 INFO L225 Difference]: With dead ends: 203 [2021-01-06 11:30:51,698 INFO L226 Difference]: Without dead ends: 93 [2021-01-06 11:30:51,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=502, Invalid=1568, Unknown=0, NotChecked=0, Total=2070 [2021-01-06 11:30:51,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-01-06 11:30:51,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 88. [2021-01-06 11:30:51,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2021-01-06 11:30:51,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2021-01-06 11:30:51,715 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 79 [2021-01-06 11:30:51,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:30:51,715 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2021-01-06 11:30:51,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 11:30:51,715 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2021-01-06 11:30:51,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-01-06 11:30:51,716 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:30:51,716 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:30:51,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 11:30:51,921 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:30:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:30:51,922 INFO L82 PathProgramCache]: Analyzing trace with hash 587858486, now seen corresponding path program 19 times [2021-01-06 11:30:51,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:30:51,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883128782] [2021-01-06 11:30:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:30:51,944 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 11:30:51,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1442273587] [2021-01-06 11:30:51,945 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 11:30:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:30:52,109 WARN L261 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 125 conjunts are in the unsatisfiable core [2021-01-06 11:30:52,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 11:30:52,165 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 11:30:52,168 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:52,181 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:52,187 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 11:30:52,188 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:52,199 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:52,202 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 11:30:52,202 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2021-01-06 11:30:52,228 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 11:30:52,230 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:52,245 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:52,246 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:52,247 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2021-01-06 11:30:52,338 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:30:52,339 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 11:30:52,341 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:52,407 INFO L625 ElimStorePlain]: treesize reduction 20, result has 64.3 percent of original size [2021-01-06 11:30:52,408 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:52,408 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2021-01-06 11:30:52,584 INFO L348 Elim1Store]: treesize reduction 52, result has 45.8 percent of original size [2021-01-06 11:30:52,584 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 11:30:52,586 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:52,671 INFO L625 ElimStorePlain]: treesize reduction 20, result has 70.6 percent of original size [2021-01-06 11:30:52,672 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:52,673 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2021-01-06 11:30:52,990 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2021-01-06 11:30:52,991 INFO L348 Elim1Store]: treesize reduction 32, result has 77.5 percent of original size [2021-01-06 11:30:52,992 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 11:30:52,997 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:53,142 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2021-01-06 11:30:53,143 INFO L625 ElimStorePlain]: treesize reduction 64, result has 45.8 percent of original size [2021-01-06 11:30:53,144 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:53,144 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:58, output treesize:54 [2021-01-06 11:30:53,624 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-01-06 11:30:53,625 INFO L348 Elim1Store]: treesize reduction 66, result has 69.3 percent of original size [2021-01-06 11:30:53,625 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 11:30:53,629 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:53,818 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 38 [2021-01-06 11:30:53,819 INFO L625 ElimStorePlain]: treesize reduction 86, result has 42.3 percent of original size [2021-01-06 11:30:53,822 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:53,822 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:63 [2021-01-06 11:30:54,475 WARN L197 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 57 [2021-01-06 11:30:54,476 INFO L348 Elim1Store]: treesize reduction 112, result has 62.7 percent of original size [2021-01-06 11:30:54,476 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 66 treesize of output 224 [2021-01-06 11:30:54,480 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:54,693 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2021-01-06 11:30:54,694 INFO L625 ElimStorePlain]: treesize reduction 108, result has 40.0 percent of original size [2021-01-06 11:30:54,695 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:54,695 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:72 [2021-01-06 11:30:55,517 WARN L197 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2021-01-06 11:30:55,518 INFO L348 Elim1Store]: treesize reduction 170, result has 57.2 percent of original size [2021-01-06 11:30:55,518 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 11:30:55,531 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:55,762 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2021-01-06 11:30:55,763 INFO L625 ElimStorePlain]: treesize reduction 130, result has 39.3 percent of original size [2021-01-06 11:30:55,764 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:55,765 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:88, output treesize:84 [2021-01-06 11:30:56,004 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:30:56,835 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:30:57,042 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:30:57,043 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:30:57,043 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 11:30:57,049 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:57,260 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2021-01-06 11:30:57,261 INFO L625 ElimStorePlain]: treesize reduction 142, result has 38.8 percent of original size [2021-01-06 11:30:57,262 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:57,262 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:90 [2021-01-06 11:30:58,017 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:30:58,018 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:30:58,020 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 11:30:58,026 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:58,214 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2021-01-06 11:30:58,215 INFO L625 ElimStorePlain]: treesize reduction 144, result has 39.0 percent of original size [2021-01-06 11:30:58,216 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:58,217 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:92 [2021-01-06 11:30:58,867 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:30:59,223 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 84 [2021-01-06 11:30:59,224 INFO L348 Elim1Store]: treesize reduction 257, result has 43.8 percent of original size [2021-01-06 11:30:59,224 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 11:30:59,232 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:30:59,508 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 54 [2021-01-06 11:30:59,509 INFO L625 ElimStorePlain]: treesize reduction 303, result has 25.2 percent of original size [2021-01-06 11:30:59,510 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:30:59,510 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:102 [2021-01-06 11:31:00,383 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:31:00,384 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:31:00,384 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 11:31:00,391 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:00,624 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 52 [2021-01-06 11:31:00,625 INFO L625 ElimStorePlain]: treesize reduction 138, result has 41.8 percent of original size [2021-01-06 11:31:00,626 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:00,627 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:99 [2021-01-06 11:31:01,730 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 84 [2021-01-06 11:31:01,731 INFO L348 Elim1Store]: treesize reduction 257, result has 43.8 percent of original size [2021-01-06 11:31:01,732 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 112 treesize of output 320 [2021-01-06 11:31:01,740 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:02,039 WARN L197 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 53 [2021-01-06 11:31:02,040 INFO L625 ElimStorePlain]: treesize reduction 396, result has 20.2 percent of original size [2021-01-06 11:31:02,042 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:02,043 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:100 [2021-01-06 11:31:03,028 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:31:03,029 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:31:03,029 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 11:31:03,037 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:03,214 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2021-01-06 11:31:03,214 INFO L625 ElimStorePlain]: treesize reduction 148, result has 38.3 percent of original size [2021-01-06 11:31:03,215 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:03,215 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:92 [2021-01-06 11:31:03,650 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:31:04,139 INFO L348 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-01-06 11:31:04,140 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 97 [2021-01-06 11:31:04,144 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:04,247 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-01-06 11:31:04,248 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:31:04,249 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:04,250 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:110, output treesize:85 [2021-01-06 11:31:05,809 WARN L197 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 77 [2021-01-06 11:31:05,811 INFO L348 Elim1Store]: treesize reduction 240, result has 52.6 percent of original size [2021-01-06 11:31:05,812 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 90 treesize of output 310 [2021-01-06 11:31:05,818 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:06,083 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 48 [2021-01-06 11:31:06,084 INFO L625 ElimStorePlain]: treesize reduction 163, result has 35.1 percent of original size [2021-01-06 11:31:06,085 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:06,085 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:103, output treesize:88 [2021-01-06 11:31:07,146 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:31:07,718 WARN L197 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 77 [2021-01-06 11:31:07,719 INFO L348 Elim1Store]: treesize reduction 240, result has 52.6 percent of original size [2021-01-06 11:31:07,720 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 90 treesize of output 310 [2021-01-06 11:31:07,726 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:08,011 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 49 [2021-01-06 11:31:08,012 INFO L625 ElimStorePlain]: treesize reduction 161, result has 35.9 percent of original size [2021-01-06 11:31:08,013 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:08,013 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:103, output treesize:90 [2021-01-06 11:31:08,594 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-01-06 11:31:09,222 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-01-06 11:31:09,792 WARN L197 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 77 [2021-01-06 11:31:09,793 INFO L348 Elim1Store]: treesize reduction 240, result has 52.6 percent of original size [2021-01-06 11:31:09,794 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 90 treesize of output 310 [2021-01-06 11:31:09,800 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:10,062 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 49 [2021-01-06 11:31:10,063 INFO L625 ElimStorePlain]: treesize reduction 161, result has 35.9 percent of original size [2021-01-06 11:31:10,064 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:10,064 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:103, output treesize:90 [2021-01-06 11:31:10,668 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-01-06 11:31:11,329 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-01-06 11:31:11,841 WARN L197 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 72 [2021-01-06 11:31:11,842 INFO L348 Elim1Store]: treesize reduction 297, result has 44.6 percent of original size [2021-01-06 11:31:11,842 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 93 treesize of output 283 [2021-01-06 11:31:11,847 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:12,109 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2021-01-06 11:31:12,110 INFO L625 ElimStorePlain]: treesize reduction 141, result has 37.6 percent of original size [2021-01-06 11:31:12,111 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:12,111 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:106, output treesize:85 [2021-01-06 11:31:12,818 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-01-06 11:31:13,502 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:31:14,088 WARN L197 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 77 [2021-01-06 11:31:14,089 INFO L348 Elim1Store]: treesize reduction 240, result has 52.6 percent of original size [2021-01-06 11:31:14,090 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 84 treesize of output 308 [2021-01-06 11:31:14,095 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:14,434 WARN L197 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2021-01-06 11:31:14,435 INFO L625 ElimStorePlain]: treesize reduction 161, result has 34.3 percent of original size [2021-01-06 11:31:14,436 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:14,436 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:84 [2021-01-06 11:31:15,244 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:31:16,071 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-01-06 11:31:16,633 WARN L197 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 72 [2021-01-06 11:31:16,634 INFO L348 Elim1Store]: treesize reduction 297, result has 44.6 percent of original size [2021-01-06 11:31:16,634 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 87 treesize of output 281 [2021-01-06 11:31:16,639 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:16,975 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2021-01-06 11:31:16,976 INFO L625 ElimStorePlain]: treesize reduction 139, result has 38.5 percent of original size [2021-01-06 11:31:16,977 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:16,978 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:87 [2021-01-06 11:31:17,761 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:31:18,593 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:31:19,007 WARN L197 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 33 [2021-01-06 11:31:19,008 INFO L348 Elim1Store]: treesize reduction 390, result has 12.0 percent of original size [2021-01-06 11:31:19,008 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 82 treesize of output 93 [2021-01-06 11:31:19,012 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:19,131 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-01-06 11:31:19,132 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:31:19,133 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:19,134 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:92, output treesize:79 [2021-01-06 11:31:20,021 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-01-06 11:31:20,894 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-01-06 11:31:22,037 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 177 DAG size of output: 93 [2021-01-06 11:31:22,039 INFO L348 Elim1Store]: treesize reduction 240, result has 61.0 percent of original size [2021-01-06 11:31:22,039 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 11:31:22,047 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:22,428 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 48 [2021-01-06 11:31:22,429 INFO L625 ElimStorePlain]: treesize reduction 354, result has 20.3 percent of original size [2021-01-06 11:31:22,430 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:22,430 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:90 [2021-01-06 11:31:23,363 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:31:24,280 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-01-06 11:31:25,161 WARN L197 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 88 [2021-01-06 11:31:25,162 INFO L348 Elim1Store]: treesize reduction 328, result has 51.1 percent of original size [2021-01-06 11:31:25,163 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 387 [2021-01-06 11:31:25,172 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:25,502 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 50 [2021-01-06 11:31:25,503 INFO L625 ElimStorePlain]: treesize reduction 306, result has 24.1 percent of original size [2021-01-06 11:31:25,504 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:25,504 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:120, output treesize:97 [2021-01-06 11:31:26,189 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-01-06 11:31:26,895 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:31:27,712 WARN L197 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 82 [2021-01-06 11:31:27,712 INFO L348 Elim1Store]: treesize reduction 404, result has 42.6 percent of original size [2021-01-06 11:31:27,713 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 114 treesize of output 344 [2021-01-06 11:31:27,718 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:27,978 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2021-01-06 11:31:27,979 INFO L625 ElimStorePlain]: treesize reduction 254, result has 29.1 percent of original size [2021-01-06 11:31:27,980 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:27,980 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:127, output treesize:104 [2021-01-06 11:31:29,345 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:31:30,058 WARN L197 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 75 [2021-01-06 11:31:30,059 INFO L348 Elim1Store]: treesize reduction 480, result has 34.9 percent of original size [2021-01-06 11:31:30,059 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 121 treesize of output 301 [2021-01-06 11:31:30,065 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:30,312 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-01-06 11:31:30,313 INFO L625 ElimStorePlain]: treesize reduction 202, result has 35.5 percent of original size [2021-01-06 11:31:30,315 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:30,315 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:134, output treesize:111 [2021-01-06 11:31:31,088 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-01-06 11:31:31,872 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:31:32,450 WARN L197 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 68 [2021-01-06 11:31:32,451 INFO L348 Elim1Store]: treesize reduction 556, result has 27.8 percent of original size [2021-01-06 11:31:32,452 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 128 treesize of output 258 [2021-01-06 11:31:32,460 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:32,724 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2021-01-06 11:31:32,725 INFO L625 ElimStorePlain]: treesize reduction 160, result has 47.2 percent of original size [2021-01-06 11:31:32,727 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:32,727 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:143 [2021-01-06 11:31:33,862 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-01-06 11:31:35,067 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:31:36,412 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 177 DAG size of output: 93 [2021-01-06 11:31:36,412 INFO L348 Elim1Store]: treesize reduction 240, result has 61.0 percent of original size [2021-01-06 11:31:36,413 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 128 treesize of output 420 [2021-01-06 11:31:36,422 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:36,793 WARN L197 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 47 [2021-01-06 11:31:36,795 INFO L625 ElimStorePlain]: treesize reduction 366, result has 22.8 percent of original size [2021-01-06 11:31:36,796 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:36,796 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:108 [2021-01-06 11:31:37,638 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:31:38,991 WARN L197 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 33 [2021-01-06 11:31:38,995 INFO L348 Elim1Store]: treesize reduction 402, result has 11.6 percent of original size [2021-01-06 11:31:38,995 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 95 [2021-01-06 11:31:38,999 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:39,139 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-01-06 11:31:39,139 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:31:39,140 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:39,141 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:128, output treesize:121 [2021-01-06 11:31:40,462 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-01-06 11:31:41,789 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-01-06 11:31:41,991 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:31:41,993 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:31:41,994 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 136 treesize of output 202 [2021-01-06 11:31:42,002 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:42,325 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2021-01-06 11:31:42,325 INFO L625 ElimStorePlain]: treesize reduction 166, result has 53.4 percent of original size [2021-01-06 11:31:42,326 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:42,329 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:190 [2021-01-06 11:31:43,840 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-01-06 11:31:45,451 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:31:45,453 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:31:45,453 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 166 treesize of output 218 [2021-01-06 11:31:45,460 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:45,828 WARN L197 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-01-06 11:31:45,829 INFO L625 ElimStorePlain]: treesize reduction 195, result has 53.2 percent of original size [2021-01-06 11:31:45,830 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:45,830 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:179, output treesize:222 [2021-01-06 11:31:47,285 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-01-06 11:31:48,815 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-01-06 11:31:49,020 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:31:49,021 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:31:49,022 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 218 treesize of output 228 [2021-01-06 11:31:49,029 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:49,277 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 54 [2021-01-06 11:31:49,277 INFO L625 ElimStorePlain]: treesize reduction 168, result has 45.3 percent of original size [2021-01-06 11:31:49,278 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:49,279 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:231, output treesize:139 [2021-01-06 11:31:50,617 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-01-06 11:31:52,262 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:31:52,481 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:31:52,482 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:31:52,483 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 147 treesize of output 211 [2021-01-06 11:31:52,489 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:52,800 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2021-01-06 11:31:52,801 INFO L625 ElimStorePlain]: treesize reduction 142, result has 43.2 percent of original size [2021-01-06 11:31:52,803 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:52,803 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:160, output treesize:108 [2021-01-06 11:31:54,492 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:31:56,293 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-01-06 11:31:56,515 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 53 [2021-01-06 11:31:56,516 INFO L348 Elim1Store]: treesize reduction 240, result has 28.8 percent of original size [2021-01-06 11:31:56,516 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 206 [2021-01-06 11:31:56,523 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:31:56,752 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2021-01-06 11:31:56,753 INFO L625 ElimStorePlain]: treesize reduction 142, result has 41.1 percent of original size [2021-01-06 11:31:56,754 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:31:56,754 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:129, output treesize:99 [2021-01-06 11:31:58,391 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 11:32:00,260 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-01-06 11:32:00,684 WARN L197 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 84 [2021-01-06 11:32:00,685 INFO L348 Elim1Store]: treesize reduction 257, result has 43.8 percent of original size [2021-01-06 11:32:00,686 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 112 treesize of output 320 [2021-01-06 11:32:00,693 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:01,098 WARN L197 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 54 [2021-01-06 11:32:01,099 INFO L625 ElimStorePlain]: treesize reduction 368, result has 21.7 percent of original size [2021-01-06 11:32:01,101 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 11:32:01,101 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:102 [2021-01-06 11:32:03,135 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-01-06 11:32:05,175 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:32:05,195 INFO L348 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-01-06 11:32:05,196 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 107 treesize of output 98 [2021-01-06 11:32:05,199 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 11:32:05,368 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-06 11:32:05,369 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:32:05,372 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 11:32:05,373 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:117, output treesize:114 [2021-01-06 11:32:07,717 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:32:07,719 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:32:07,722 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:32:07,723 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 11:32:07,731 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 11:32:07,733 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-06 11:32:07,739 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-01-06 11:32:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:32:08,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883128782] [2021-01-06 11:32:08,898 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 11:32:08,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442273587] [2021-01-06 11:32:08,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 11:32:08,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2021-01-06 11:32:08,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255154511] [2021-01-06 11:32:08,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 77 states [2021-01-06 11:32:08,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:32:08,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-01-06 11:32:08,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=5614, Unknown=0, NotChecked=0, Total=5852 [2021-01-06 11:32:08,902 INFO L87 Difference]: Start difference. First operand 88 states and 92 transitions. Second operand 77 states. [2021-01-06 11:32:12,879 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-01-06 11:32:13,643 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-01-06 11:32:15,226 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-01-06 11:32:16,494 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-01-06 11:32:18,393 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2021-01-06 11:32:19,849 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2021-01-06 11:32:22,402 WARN L197 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-01-06 11:32:24,053 WARN L197 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-01-06 11:32:25,637 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-06 11:32:26,849 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-01-06 11:32:28,058 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-01-06 11:32:30,773 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-01-06 11:32:32,168 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-06 11:32:33,511 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-01-06 11:32:34,875 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-01-06 11:32:36,059 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-06 11:32:37,240 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-01-06 11:32:38,530 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-06 11:32:39,934 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-06 11:32:41,262 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-01-06 11:32:42,667 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-01-06 11:32:43,968 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-01-06 11:32:45,285 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-01-06 11:32:46,744 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-06 11:32:48,227 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2021-01-06 11:32:50,050 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-01-06 11:32:52,337 WARN L197 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-01-06 11:32:53,836 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-01-06 11:32:56,187 WARN L197 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-01-06 11:32:57,569 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-01-06 11:32:59,141 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-01-06 11:32:59,986 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52