/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-patterns/array25_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 10:56:20,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 10:56:20,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 10:56:20,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 10:56:20,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 10:56:20,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 10:56:20,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 10:56:20,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 10:56:20,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 10:56:20,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 10:56:20,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 10:56:20,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 10:56:20,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 10:56:20,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 10:56:20,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 10:56:20,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 10:56:20,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 10:56:20,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 10:56:20,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 10:56:20,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 10:56:20,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 10:56:20,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 10:56:20,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 10:56:20,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 10:56:20,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 10:56:20,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 10:56:20,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 10:56:20,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 10:56:20,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 10:56:20,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 10:56:20,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 10:56:20,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 10:56:20,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 10:56:20,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 10:56:20,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 10:56:20,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 10:56:20,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 10:56:20,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 10:56:20,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 10:56:20,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 10:56:20,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 10:56:20,903 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 10:56:20,956 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 10:56:20,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 10:56:20,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 10:56:20,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 10:56:20,961 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 10:56:20,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 10:56:20,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 10:56:20,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 10:56:20,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 10:56:20,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 10:56:20,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 10:56:20,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 10:56:20,963 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 10:56:20,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 10:56:20,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 10:56:20,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 10:56:20,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 10:56:20,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 10:56:20,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 10:56:20,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 10:56:20,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 10:56:20,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 10:56:20,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 10:56:20,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 10:56:20,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 10:56:20,966 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 10:56:21,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 10:56:21,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 10:56:21,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 10:56:21,412 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 10:56:21,413 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 10:56:21,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array25_pattern.c [2021-01-06 10:56:21,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/71cd27dfb/1b90022804a74ea3bd3ae2282dfc5fd1/FLAGb04035c54 [2021-01-06 10:56:22,264 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 10:56:22,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-patterns/array25_pattern.c [2021-01-06 10:56:22,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/71cd27dfb/1b90022804a74ea3bd3ae2282dfc5fd1/FLAGb04035c54 [2021-01-06 10:56:22,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/71cd27dfb/1b90022804a74ea3bd3ae2282dfc5fd1 [2021-01-06 10:56:22,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 10:56:22,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 10:56:22,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 10:56:22,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 10:56:22,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 10:56:22,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 10:56:22" (1/1) ... [2021-01-06 10:56:22,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b30749d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22, skipping insertion in model container [2021-01-06 10:56:22,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 10:56:22" (1/1) ... [2021-01-06 10:56:22,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 10:56:22,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 10:56:22,790 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-patterns/array25_pattern.c[1270,1283] left hand side expression in assignment: lhs: VariableLHS[~ARR_SIZE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: lhs: ArrayLHS[ArrayLHS[VariableLHS[~array~0,],[IdentifierExpression[~row~0,]]],[IdentifierExpression[~column~0,]]] left hand side expression in assignment: lhs: ArrayLHS[ArrayLHS[VariableLHS[~array~0,],[IdentifierExpression[~row~0,]]],[IdentifierExpression[~column~0,]]] left hand side expression in assignment: lhs: ArrayLHS[ArrayLHS[VariableLHS[~array~0,],[IdentifierExpression[~row~0,]]],[IdentifierExpression[~column~0,]]] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: lhs: VariableLHS[~sum~0,] [2021-01-06 10:56:22,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 10:56:22,847 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 10:56:22,866 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-patterns/array25_pattern.c[1270,1283] left hand side expression in assignment: lhs: VariableLHS[~ARR_SIZE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,],base],BinaryExpression[ARITHPLUS,BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,],offset],BinaryExpression[ARITHMUL,IdentifierExpression[~row~0,],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~ARR_SIZE~0,GLOBAL]]]],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~column~0,]]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,],base],BinaryExpression[ARITHPLUS,BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,],offset],BinaryExpression[ARITHMUL,IdentifierExpression[~row~0,],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~ARR_SIZE~0,GLOBAL]]]],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~column~0,]]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,],base],BinaryExpression[ARITHPLUS,BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,],offset],BinaryExpression[ARITHMUL,IdentifierExpression[~row~0,],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~ARR_SIZE~0,GLOBAL]]]],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~column~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: lhs: VariableLHS[~sum~0,] [2021-01-06 10:56:22,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 10:56:22,918 INFO L208 MainTranslator]: Completed translation [2021-01-06 10:56:22,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22 WrapperNode [2021-01-06 10:56:22,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 10:56:22,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 10:56:22,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 10:56:22,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 10:56:22,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22" (1/1) ... [2021-01-06 10:56:22,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22" (1/1) ... [2021-01-06 10:56:22,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 10:56:22,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 10:56:22,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 10:56:22,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 10:56:23,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22" (1/1) ... [2021-01-06 10:56:23,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22" (1/1) ... [2021-01-06 10:56:23,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22" (1/1) ... [2021-01-06 10:56:23,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22" (1/1) ... [2021-01-06 10:56:23,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22" (1/1) ... [2021-01-06 10:56:23,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22" (1/1) ... [2021-01-06 10:56:23,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22" (1/1) ... [2021-01-06 10:56:23,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 10:56:23,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 10:56:23,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 10:56:23,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 10:56:23,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22" (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 10:56:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 10:56:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 10:56:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 10:56:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 10:56:23,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 10:56:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 10:56:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 10:56:23,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 10:56:23,700 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-01-06 10:56:23,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 10:56:23 BoogieIcfgContainer [2021-01-06 10:56:23,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 10:56:23,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 10:56:23,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 10:56:23,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 10:56:23,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 10:56:22" (1/3) ... [2021-01-06 10:56:23,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2545543f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 10:56:23, skipping insertion in model container [2021-01-06 10:56:23,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 10:56:22" (2/3) ... [2021-01-06 10:56:23,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2545543f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 10:56:23, skipping insertion in model container [2021-01-06 10:56:23,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 10:56:23" (3/3) ... [2021-01-06 10:56:23,727 INFO L111 eAbstractionObserver]: Analyzing ICFG array25_pattern.c [2021-01-06 10:56:23,734 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 10:56:23,740 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 10:56:23,758 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 10:56:23,784 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 10:56:23,787 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 10:56:23,787 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 10:56:23,787 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 10:56:23,787 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 10:56:23,787 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 10:56:23,787 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 10:56:23,788 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 10:56:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2021-01-06 10:56:23,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 10:56:23,808 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:23,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 10:56:23,810 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:23,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:23,816 INFO L82 PathProgramCache]: Analyzing trace with hash -320975489, now seen corresponding path program 1 times [2021-01-06 10:56:23,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:23,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672591577] [2021-01-06 10:56:23,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 10:56:24,026 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 10:56:24,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672591577] [2021-01-06 10:56:24,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 10:56:24,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 10:56:24,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147387247] [2021-01-06 10:56:24,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 10:56:24,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 10:56:24,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 10:56:24,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 10:56:24,057 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2021-01-06 10:56:24,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 10:56:24,073 INFO L93 Difference]: Finished difference Result 43 states and 64 transitions. [2021-01-06 10:56:24,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 10:56:24,075 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-01-06 10:56:24,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 10:56:24,085 INFO L225 Difference]: With dead ends: 43 [2021-01-06 10:56:24,085 INFO L226 Difference]: Without dead ends: 19 [2021-01-06 10:56:24,088 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 10:56:24,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-01-06 10:56:24,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-01-06 10:56:24,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-01-06 10:56:24,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-01-06 10:56:24,124 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 10 [2021-01-06 10:56:24,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 10:56:24,125 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-01-06 10:56:24,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 10:56:24,125 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-01-06 10:56:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 10:56:24,126 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:24,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 10:56:24,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 10:56:24,127 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:24,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:24,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1931938343, now seen corresponding path program 1 times [2021-01-06 10:56:24,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:24,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092291854] [2021-01-06 10:56:24,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:24,145 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 10:56:24,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884789036] [2021-01-06 10:56:24,146 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 10:56:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 10:56:24,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-06 10:56:24,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 10:56:24,330 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 10:56:24,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092291854] [2021-01-06 10:56:24,331 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 10:56:24,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884789036] [2021-01-06 10:56:24,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 10:56:24,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 10:56:24,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497143977] [2021-01-06 10:56:24,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 10:56:24,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 10:56:24,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 10:56:24,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 10:56:24,336 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand 5 states. [2021-01-06 10:56:24,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 10:56:24,474 INFO L93 Difference]: Finished difference Result 44 states and 60 transitions. [2021-01-06 10:56:24,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 10:56:24,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 10:56:24,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 10:56:24,476 INFO L225 Difference]: With dead ends: 44 [2021-01-06 10:56:24,477 INFO L226 Difference]: Without dead ends: 29 [2021-01-06 10:56:24,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 10:56:24,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-01-06 10:56:24,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2021-01-06 10:56:24,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-01-06 10:56:24,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2021-01-06 10:56:24,486 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 10 [2021-01-06 10:56:24,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 10:56:24,487 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-01-06 10:56:24,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 10:56:24,487 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2021-01-06 10:56:24,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 10:56:24,488 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:24,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 10:56:24,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-01-06 10:56:24,702 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:24,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:24,704 INFO L82 PathProgramCache]: Analyzing trace with hash -438331433, now seen corresponding path program 1 times [2021-01-06 10:56:24,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:24,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824615982] [2021-01-06 10:56:24,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:24,722 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 10:56:24,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774717540] [2021-01-06 10:56:24,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 10:56:24,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-06 10:56:24,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 10:56:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-06 10:56:24,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824615982] [2021-01-06 10:56:24,898 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 10:56:24,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774717540] [2021-01-06 10:56:24,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 10:56:24,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 10:56:24,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942793707] [2021-01-06 10:56:24,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 10:56:24,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 10:56:24,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 10:56:24,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 10:56:24,908 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 4 states. [2021-01-06 10:56:25,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 10:56:25,032 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2021-01-06 10:56:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 10:56:25,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2021-01-06 10:56:25,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 10:56:25,036 INFO L225 Difference]: With dead ends: 51 [2021-01-06 10:56:25,036 INFO L226 Difference]: Without dead ends: 35 [2021-01-06 10:56:25,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 10:56:25,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-01-06 10:56:25,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2021-01-06 10:56:25,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-01-06 10:56:25,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2021-01-06 10:56:25,065 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 16 [2021-01-06 10:56:25,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 10:56:25,065 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-01-06 10:56:25,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 10:56:25,066 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2021-01-06 10:56:25,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 10:56:25,067 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:25,067 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] [2021-01-06 10:56:25,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:25,281 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:25,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:25,283 INFO L82 PathProgramCache]: Analyzing trace with hash -308201553, now seen corresponding path program 1 times [2021-01-06 10:56:25,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:25,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189557913] [2021-01-06 10:56:25,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:25,298 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 10:56:25,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1618538910] [2021-01-06 10:56:25,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 10:56:25,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 10:56:25,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 10:56:25,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 10:56:25,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189557913] [2021-01-06 10:56:25,456 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 10:56:25,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618538910] [2021-01-06 10:56:25,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 10:56:25,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-01-06 10:56:25,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901602490] [2021-01-06 10:56:25,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 10:56:25,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 10:56:25,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 10:56:25,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 10:56:25,458 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 6 states. [2021-01-06 10:56:25,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 10:56:25,658 INFO L93 Difference]: Finished difference Result 65 states and 86 transitions. [2021-01-06 10:56:25,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 10:56:25,659 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2021-01-06 10:56:25,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 10:56:25,661 INFO L225 Difference]: With dead ends: 65 [2021-01-06 10:56:25,661 INFO L226 Difference]: Without dead ends: 45 [2021-01-06 10:56:25,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-01-06 10:56:25,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-01-06 10:56:25,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 40. [2021-01-06 10:56:25,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-01-06 10:56:25,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2021-01-06 10:56:25,680 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 21 [2021-01-06 10:56:25,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 10:56:25,680 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-01-06 10:56:25,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 10:56:25,680 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2021-01-06 10:56:25,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-01-06 10:56:25,683 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:25,684 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 10:56:25,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:25,897 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:25,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:25,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1610723178, now seen corresponding path program 1 times [2021-01-06 10:56:25,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:25,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155054791] [2021-01-06 10:56:25,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:25,926 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 10:56:25,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624417646] [2021-01-06 10:56:25,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 10:56:25,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-06 10:56:25,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 10:56:26,120 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-01-06 10:56:26,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155054791] [2021-01-06 10:56:26,121 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 10:56:26,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624417646] [2021-01-06 10:56:26,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 10:56:26,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-01-06 10:56:26,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968749229] [2021-01-06 10:56:26,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 10:56:26,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 10:56:26,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 10:56:26,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-01-06 10:56:26,125 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 7 states. [2021-01-06 10:56:26,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 10:56:26,280 INFO L93 Difference]: Finished difference Result 100 states and 131 transitions. [2021-01-06 10:56:26,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 10:56:26,280 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2021-01-06 10:56:26,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 10:56:26,281 INFO L225 Difference]: With dead ends: 100 [2021-01-06 10:56:26,281 INFO L226 Difference]: Without dead ends: 75 [2021-01-06 10:56:26,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-01-06 10:56:26,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-01-06 10:56:26,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 59. [2021-01-06 10:56:26,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-01-06 10:56:26,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2021-01-06 10:56:26,292 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 76 transitions. Word has length 27 [2021-01-06 10:56:26,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 10:56:26,292 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 76 transitions. [2021-01-06 10:56:26,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 10:56:26,292 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2021-01-06 10:56:26,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-06 10:56:26,294 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:26,294 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 10:56:26,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:26,509 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:26,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:26,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1943339208, now seen corresponding path program 1 times [2021-01-06 10:56:26,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:26,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110901130] [2021-01-06 10:56:26,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:26,525 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 10:56:26,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [670725237] [2021-01-06 10:56:26,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 10:56:26,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 57 conjunts are in the unsatisfiable core [2021-01-06 10:56:26,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 10:56:26,800 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 22 treesize of output 18 [2021-01-06 10:56:26,801 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:26,836 INFO L625 ElimStorePlain]: treesize reduction 5, result has 87.8 percent of original size [2021-01-06 10:56:26,840 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 10:56:26,846 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:36 [2021-01-06 10:56:26,970 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:56:26,971 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 87 [2021-01-06 10:56:26,976 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:27,018 INFO L625 ElimStorePlain]: treesize reduction 26, result has 65.3 percent of original size [2021-01-06 10:56:27,022 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 10:56:27,022 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:49 [2021-01-06 10:56:27,366 INFO L348 Elim1Store]: treesize reduction 25, result has 85.8 percent of original size [2021-01-06 10:56:27,367 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 175 [2021-01-06 10:56:27,382 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:27,450 INFO L625 ElimStorePlain]: treesize reduction 73, result has 49.0 percent of original size [2021-01-06 10:56:27,452 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 10:56:27,452 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:70 [2021-01-06 10:56:27,640 INFO L348 Elim1Store]: treesize reduction 74, result has 53.8 percent of original size [2021-01-06 10:56:27,641 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 107 [2021-01-06 10:56:27,651 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:27,706 INFO L625 ElimStorePlain]: treesize reduction 50, result has 50.5 percent of original size [2021-01-06 10:56:27,708 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 10:56:27,708 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:51 [2021-01-06 10:56:28,395 INFO L348 Elim1Store]: treesize reduction 27, result has 67.1 percent of original size [2021-01-06 10:56:28,396 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 75 [2021-01-06 10:56:28,407 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:28,420 INFO L625 ElimStorePlain]: treesize reduction 14, result has 41.7 percent of original size [2021-01-06 10:56:28,422 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 10:56:28,423 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:73, output treesize:10 [2021-01-06 10:56:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 10:56:28,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110901130] [2021-01-06 10:56:28,540 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 10:56:28,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670725237] [2021-01-06 10:56:28,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 10:56:28,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2021-01-06 10:56:28,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349786397] [2021-01-06 10:56:28,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-06 10:56:28,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 10:56:28,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-06 10:56:28,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2021-01-06 10:56:28,543 INFO L87 Difference]: Start difference. First operand 59 states and 76 transitions. Second operand 26 states. [2021-01-06 10:56:31,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 10:56:31,254 INFO L93 Difference]: Finished difference Result 196 states and 259 transitions. [2021-01-06 10:56:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-06 10:56:31,254 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 45 [2021-01-06 10:56:31,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 10:56:31,257 INFO L225 Difference]: With dead ends: 196 [2021-01-06 10:56:31,258 INFO L226 Difference]: Without dead ends: 142 [2021-01-06 10:56:31,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=321, Invalid=2229, Unknown=0, NotChecked=0, Total=2550 [2021-01-06 10:56:31,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-01-06 10:56:31,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 93. [2021-01-06 10:56:31,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2021-01-06 10:56:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 115 transitions. [2021-01-06 10:56:31,275 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 115 transitions. Word has length 45 [2021-01-06 10:56:31,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 10:56:31,276 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 115 transitions. [2021-01-06 10:56:31,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2021-01-06 10:56:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2021-01-06 10:56:31,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-06 10:56:31,278 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:31,278 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 10:56:31,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-06 10:56:31,493 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:31,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:31,494 INFO L82 PathProgramCache]: Analyzing trace with hash 922052314, now seen corresponding path program 2 times [2021-01-06 10:56:31,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:31,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895261336] [2021-01-06 10:56:31,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:31,507 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 10:56:31,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039118792] [2021-01-06 10:56:31,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:31,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 10:56:31,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 10:56:31,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 10:56:31,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 10:56:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 32 proven. 24 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-01-06 10:56:31,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895261336] [2021-01-06 10:56:31,713 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 10:56:31,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039118792] [2021-01-06 10:56:31,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 10:56:31,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 10:56:31,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010637292] [2021-01-06 10:56:31,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 10:56:31,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 10:56:31,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 10:56:31,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-06 10:56:31,715 INFO L87 Difference]: Start difference. First operand 93 states and 115 transitions. Second operand 9 states. [2021-01-06 10:56:31,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 10:56:31,923 INFO L93 Difference]: Finished difference Result 248 states and 316 transitions. [2021-01-06 10:56:31,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 10:56:31,923 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2021-01-06 10:56:31,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 10:56:31,925 INFO L225 Difference]: With dead ends: 248 [2021-01-06 10:56:31,926 INFO L226 Difference]: Without dead ends: 177 [2021-01-06 10:56:31,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 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 10:56:31,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-01-06 10:56:31,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 139. [2021-01-06 10:56:31,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2021-01-06 10:56:31,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 173 transitions. [2021-01-06 10:56:31,948 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 173 transitions. Word has length 47 [2021-01-06 10:56:31,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 10:56:31,948 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 173 transitions. [2021-01-06 10:56:31,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 10:56:31,949 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 173 transitions. [2021-01-06 10:56:31,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-06 10:56:31,951 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:31,952 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 10:56:32,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:32,168 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:32,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:32,168 INFO L82 PathProgramCache]: Analyzing trace with hash -123168592, now seen corresponding path program 3 times [2021-01-06 10:56:32,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:32,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554302080] [2021-01-06 10:56:32,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:32,181 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 10:56:32,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469927590] [2021-01-06 10:56:32,182 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 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 10:56:32,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-01-06 10:56:32,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 10:56:32,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 10:56:32,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 10:56:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 5 proven. 37 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-01-06 10:56:32,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554302080] [2021-01-06 10:56:32,478 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 10:56:32,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469927590] [2021-01-06 10:56:32,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 10:56:32,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 10:56:32,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992844962] [2021-01-06 10:56:32,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 10:56:32,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 10:56:32,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 10:56:32,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-01-06 10:56:32,481 INFO L87 Difference]: Start difference. First operand 139 states and 173 transitions. Second operand 9 states. [2021-01-06 10:56:32,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 10:56:32,719 INFO L93 Difference]: Finished difference Result 319 states and 414 transitions. [2021-01-06 10:56:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 10:56:32,720 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2021-01-06 10:56:32,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 10:56:32,722 INFO L225 Difference]: With dead ends: 319 [2021-01-06 10:56:32,722 INFO L226 Difference]: Without dead ends: 251 [2021-01-06 10:56:32,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-01-06 10:56:32,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-01-06 10:56:32,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 181. [2021-01-06 10:56:32,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2021-01-06 10:56:32,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 229 transitions. [2021-01-06 10:56:32,747 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 229 transitions. Word has length 48 [2021-01-06 10:56:32,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 10:56:32,748 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 229 transitions. [2021-01-06 10:56:32,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 10:56:32,748 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 229 transitions. [2021-01-06 10:56:32,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-06 10:56:32,750 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:32,751 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 10:56:32,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:32,964 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:32,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:32,965 INFO L82 PathProgramCache]: Analyzing trace with hash -328109803, now seen corresponding path program 4 times [2021-01-06 10:56:32,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:32,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820589533] [2021-01-06 10:56:32,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:32,976 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 10:56:32,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774616814] [2021-01-06 10:56:32,977 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 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 10:56:33,032 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 10:56:33,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 10:56:33,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 10:56:33,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 10:56:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 50 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-01-06 10:56:33,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820589533] [2021-01-06 10:56:33,162 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 10:56:33,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774616814] [2021-01-06 10:56:33,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 10:56:33,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 10:56:33,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538645351] [2021-01-06 10:56:33,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 10:56:33,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 10:56:33,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 10:56:33,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-06 10:56:33,164 INFO L87 Difference]: Start difference. First operand 181 states and 229 transitions. Second operand 9 states. [2021-01-06 10:56:33,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 10:56:33,472 INFO L93 Difference]: Finished difference Result 266 states and 320 transitions. [2021-01-06 10:56:33,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-06 10:56:33,472 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2021-01-06 10:56:33,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 10:56:33,474 INFO L225 Difference]: With dead ends: 266 [2021-01-06 10:56:33,474 INFO L226 Difference]: Without dead ends: 191 [2021-01-06 10:56:33,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2021-01-06 10:56:33,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-01-06 10:56:33,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 173. [2021-01-06 10:56:33,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2021-01-06 10:56:33,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 217 transitions. [2021-01-06 10:56:33,496 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 217 transitions. Word has length 52 [2021-01-06 10:56:33,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 10:56:33,496 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 217 transitions. [2021-01-06 10:56:33,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 10:56:33,496 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 217 transitions. [2021-01-06 10:56:33,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-06 10:56:33,499 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:33,499 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 10:56:33,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-01-06 10:56:33,713 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:33,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:33,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1533812966, now seen corresponding path program 5 times [2021-01-06 10:56:33,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:33,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928757871] [2021-01-06 10:56:33,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:33,724 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 10:56:33,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1940243535] [2021-01-06 10:56:33,725 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 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 10:56:33,780 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 10:56:33,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 10:56:33,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 10:56:33,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 10:56:33,969 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 77 proven. 13 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-01-06 10:56:33,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928757871] [2021-01-06 10:56:33,969 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 10:56:33,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940243535] [2021-01-06 10:56:33,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 10:56:33,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-01-06 10:56:33,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417241367] [2021-01-06 10:56:33,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 10:56:33,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 10:56:33,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 10:56:33,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-01-06 10:56:33,973 INFO L87 Difference]: Start difference. First operand 173 states and 217 transitions. Second operand 10 states. [2021-01-06 10:56:34,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 10:56:34,239 INFO L93 Difference]: Finished difference Result 379 states and 487 transitions. [2021-01-06 10:56:34,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 10:56:34,239 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2021-01-06 10:56:34,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 10:56:34,241 INFO L225 Difference]: With dead ends: 379 [2021-01-06 10:56:34,241 INFO L226 Difference]: Without dead ends: 217 [2021-01-06 10:56:34,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-01-06 10:56:34,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-01-06 10:56:34,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 162. [2021-01-06 10:56:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2021-01-06 10:56:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 195 transitions. [2021-01-06 10:56:34,262 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 195 transitions. Word has length 58 [2021-01-06 10:56:34,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 10:56:34,262 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 195 transitions. [2021-01-06 10:56:34,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 10:56:34,262 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 195 transitions. [2021-01-06 10:56:34,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-06 10:56:34,264 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:34,264 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 10:56:34,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:34,479 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:34,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:34,480 INFO L82 PathProgramCache]: Analyzing trace with hash 517171032, now seen corresponding path program 2 times [2021-01-06 10:56:34,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:34,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195580510] [2021-01-06 10:56:34,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:34,501 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 10:56:34,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049698974] [2021-01-06 10:56:34,501 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 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 10:56:34,568 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 10:56:34,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 10:56:34,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-06 10:56:34,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 10:56:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 63 proven. 32 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-01-06 10:56:34,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195580510] [2021-01-06 10:56:34,671 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 10:56:34,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049698974] [2021-01-06 10:56:34,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 10:56:34,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 10:56:34,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078153043] [2021-01-06 10:56:34,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 10:56:34,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 10:56:34,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 10:56:34,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-06 10:56:34,674 INFO L87 Difference]: Start difference. First operand 162 states and 195 transitions. Second operand 9 states. [2021-01-06 10:56:34,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 10:56:34,855 INFO L93 Difference]: Finished difference Result 253 states and 312 transitions. [2021-01-06 10:56:34,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 10:56:34,855 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2021-01-06 10:56:34,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 10:56:34,856 INFO L225 Difference]: With dead ends: 253 [2021-01-06 10:56:34,856 INFO L226 Difference]: Without dead ends: 117 [2021-01-06 10:56:34,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 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 10:56:34,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-01-06 10:56:34,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 101. [2021-01-06 10:56:34,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2021-01-06 10:56:34,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2021-01-06 10:56:34,865 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 58 [2021-01-06 10:56:34,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 10:56:34,866 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2021-01-06 10:56:34,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 10:56:34,866 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2021-01-06 10:56:34,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-01-06 10:56:34,867 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 10:56:34,867 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 5, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 10:56:35,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 10:56:35,081 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 10:56:35,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 10:56:35,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1654572962, now seen corresponding path program 6 times [2021-01-06 10:56:35,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 10:56:35,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476036006] [2021-01-06 10:56:35,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 10:56:35,094 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 10:56:35,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343239889] [2021-01-06 10:56:35,095 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 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 10:56:35,455 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-01-06 10:56:35,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 10:56:35,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 100 conjunts are in the unsatisfiable core [2021-01-06 10:56:35,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 10:56:35,498 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 5 treesize of output 3 [2021-01-06 10:56:35,499 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:35,507 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:56:35,509 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-06 10:56:35,509 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:21 [2021-01-06 10:56:35,584 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:56:35,585 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 81 [2021-01-06 10:56:35,591 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:35,639 INFO L625 ElimStorePlain]: treesize reduction 31, result has 66.3 percent of original size [2021-01-06 10:56:35,645 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 10:56:35,645 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:46, output treesize:33 [2021-01-06 10:56:35,717 INFO L348 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2021-01-06 10:56:35,720 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2021-01-06 10:56:35,724 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:35,736 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:56:35,737 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 10:56:35,737 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:41 [2021-01-06 10:56:40,736 INFO L348 Elim1Store]: treesize reduction 21, result has 86.9 percent of original size [2021-01-06 10:56:40,737 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 165 [2021-01-06 10:56:40,741 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:40,798 INFO L625 ElimStorePlain]: treesize reduction 56, result has 54.8 percent of original size [2021-01-06 10:56:40,799 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 10:56:40,800 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:71, output treesize:68 [2021-01-06 10:56:40,853 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-06 10:56:40,967 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 10:56:44,292 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-01-06 10:56:44,326 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 10:56:44,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:44,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:44,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:44,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:44,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:44,381 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:56:44,381 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 107 [2021-01-06 10:56:44,385 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:44,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:44,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:44,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:44,403 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 58 [2021-01-06 10:56:44,405 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:44,580 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-06 10:56:44,581 INFO L625 ElimStorePlain]: treesize reduction 25, result has 87.0 percent of original size [2021-01-06 10:56:44,597 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2021-01-06 10:56:44,598 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:176, output treesize:168 [2021-01-06 10:56:47,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 10:56:47,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,955 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 78 [2021-01-06 10:56:47,957 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:47,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:47,993 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:56:47,994 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 127 [2021-01-06 10:56:48,000 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:48,203 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-06 10:56:48,204 INFO L625 ElimStorePlain]: treesize reduction 25, result has 89.0 percent of original size [2021-01-06 10:56:48,207 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2021-01-06 10:56:48,208 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:210, output treesize:202 [2021-01-06 10:56:49,039 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 10, 1] term [2021-01-06 10:56:49,039 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 10:56:49,077 INFO L443 ElimStorePlain]: Different costs {20=[v_prenex_1], 30=[|v_#memory_int_18|]} [2021-01-06 10:56:49,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,112 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 89 [2021-01-06 10:56:49,114 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:49,228 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-01-06 10:56:49,229 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:56:49,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:49,274 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:56:49,275 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 138 [2021-01-06 10:56:49,278 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:49,486 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-06 10:56:49,487 INFO L625 ElimStorePlain]: treesize reduction 12, result has 94.6 percent of original size [2021-01-06 10:56:49,492 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2021-01-06 10:56:49,492 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:220, output treesize:212 [2021-01-06 10:56:51,676 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-01-06 10:56:51,705 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 10, 1] term [2021-01-06 10:56:51,706 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 10:56:55,357 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-01-06 10:56:55,377 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 10:56:55,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,572 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-01-06 10:56:55,572 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:56:55,573 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 317 [2021-01-06 10:56:55,580 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:55,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:56:55,841 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-01-06 10:56:55,841 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:56:55,842 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 89 treesize of output 393 [2021-01-06 10:56:55,851 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 10:56:56,294 WARN L197 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2021-01-06 10:56:56,296 INFO L625 ElimStorePlain]: treesize reduction 362, result has 46.1 percent of original size [2021-01-06 10:56:56,301 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2021-01-06 10:56:56,301 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:213, output treesize:309 [2021-01-06 10:56:58,578 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-01-06 10:57:01,870 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2021-01-06 10:57:05,571 INFO L639 QuantifierPusher]: Distributing 9 conjuncts over 2 disjuncts [2021-01-06 10:57:05,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,734 INFO L244 Elim1Store]: Index analysis took 111 ms [2021-01-06 10:57:05,917 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-01-06 10:57:05,917 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:57:05,918 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 10 case distinctions, treesize of input 95 treesize of output 433 [2021-01-06 10:57:05,931 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:57:05,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:05,990 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 10:57:06,069 INFO L244 Elim1Store]: Index analysis took 119 ms [2021-01-06 10:57:06,087 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 83 [2021-01-06 10:57:06,094 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 10:57:06,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,216 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 94 [2021-01-06 10:57:06,219 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 10:57:06,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,374 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:57:06,375 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 20 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 122 [2021-01-06 10:57:06,378 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-06 10:57:06,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,506 INFO L244 Elim1Store]: Index analysis took 109 ms [2021-01-06 10:57:06,573 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:57:06,574 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 225 [2021-01-06 10:57:06,582 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-01-06 10:57:06,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,637 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 10:57:06,694 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 82 [2021-01-06 10:57:06,701 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-01-06 10:57:06,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,762 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 10:57:06,836 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:57:06,836 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 111 [2021-01-06 10:57:06,844 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-01-06 10:57:06,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:06,994 INFO L244 Elim1Store]: Index analysis took 132 ms [2021-01-06 10:57:07,235 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-01-06 10:57:07,236 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:57:07,237 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 106 treesize of output 529 [2021-01-06 10:57:07,248 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-01-06 10:57:07,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:07,296 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 10:57:07,311 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:57:07,312 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 110 [2021-01-06 10:57:07,317 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-01-06 10:57:08,804 WARN L197 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 161 DAG size of output: 117 [2021-01-06 10:57:08,805 INFO L625 ElimStorePlain]: treesize reduction 638, result has 64.3 percent of original size [2021-01-06 10:57:08,814 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 10:57:08,816 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 10:57:08,818 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 9 xjuncts. [2021-01-06 10:57:08,819 INFO L244 ElimStorePlain]: Needed 10 recursive calls to eliminate 6 variables, input treesize:1138, output treesize:1150 [2021-01-06 10:57:08,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 10:57:08,827 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 10:57:12,270 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2021-01-06 10:57:12,299 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 10:57:12,301 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 10:57:16,332 WARN L197 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 138 DAG size of output: 131 [2021-01-06 10:57:18,569 WARN L197 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 142 DAG size of output: 141 [2021-01-06 10:57:18,604 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 12, 14, 1] term [2021-01-06 10:57:18,604 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2021-01-06 10:57:18,671 INFO L443 ElimStorePlain]: Different costs {30=[v_prenex_17, v_prenex_22], 42=[v_prenex_18, v_prenex_15, v_prenex_23, v_prenex_19], 56=[v_prenex_16, |v_#memory_int_21|, v_prenex_25, v_prenex_24, v_prenex_20], 72=[v_prenex_21]} [2021-01-06 10:57:18,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:18,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:18,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:18,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:18,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:18,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:19,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:19,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:19,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:19,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:19,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:19,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:19,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:19,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:19,205 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 10:57:19,205 INFO L244 Elim1Store]: Index analysis took 492 ms [2021-01-06 10:57:19,423 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 82 [2021-01-06 10:57:19,428 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 10:57:51,581 WARN L197 SmtUtils]: Spent 32.15 s on a formula simplification that was a NOOP. DAG size: 322 [2021-01-06 10:57:51,584 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:57:51,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:51,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:51,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:51,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:51,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:51,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:51,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:51,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:51,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:51,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:51,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:52,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:52,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:52,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:52,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:57:52,103 INFO L244 Elim1Store]: Index analysis took 448 ms [2021-01-06 10:57:52,505 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 93 [2021-01-06 10:57:52,507 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-06 10:58:22,111 WARN L197 SmtUtils]: Spent 29.60 s on a formula simplification that was a NOOP. DAG size: 309 [2021-01-06 10:58:22,112 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:58:22,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:22,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:22,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:22,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:22,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:22,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:22,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:22,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:22,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:22,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:24,397 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (let ((.cse0 (* ~ARR_SIZE~0 4))) (= (+ (* ULTIMATE.start_main_~column~0 4) (* ULTIMATE.start_main_~row~0 .cse0) |ULTIMATE.start_main_~#array~0.offset| (- 8)) (+ .cse0 |ULTIMATE.start_main_~#array~0.offset|))) [2021-01-06 10:58:24,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:24,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:24,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:24,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:24,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:24,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:24,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:24,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:58:24,647 INFO L244 Elim1Store]: Index analysis took 2494 ms [2021-01-06 10:58:24,713 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:58:24,714 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 159 treesize of output 240 [2021-01-06 10:58:24,719 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-06 10:59:23,662 WARN L197 SmtUtils]: Spent 58.94 s on a formula simplification. DAG size of input: 306 DAG size of output: 305 [2021-01-06 10:59:23,664 INFO L625 ElimStorePlain]: treesize reduction 41, result has 98.1 percent of original size [2021-01-06 10:59:23,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 10:59:23,929 INFO L244 Elim1Store]: Index analysis took 229 ms [2021-01-06 10:59:24,057 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 10:59:24,057 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 20 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 121 [2021-01-06 10:59:24,061 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-06 11:00:24,561 WARN L197 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 293 DAG size of output: 291 [2021-01-06 11:00:24,563 INFO L625 ElimStorePlain]: treesize reduction 6, result has 99.7 percent of original size [2021-01-06 11:00:24,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-06 11:00:24,848 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-06 11:00:24,848 INFO L244 Elim1Store]: Index analysis took 256 ms [2021-01-06 11:00:24,941 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 11:00:24,941 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 110 [2021-01-06 11:00:24,946 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.