/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-fpi/nsqm-if.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 01:25:07,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 01:25:07,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 01:25:07,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 01:25:07,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 01:25:07,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 01:25:07,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 01:25:07,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 01:25:07,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 01:25:07,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 01:25:07,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 01:25:07,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 01:25:07,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 01:25:07,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 01:25:07,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 01:25:07,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 01:25:07,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 01:25:07,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 01:25:07,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 01:25:07,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 01:25:07,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 01:25:07,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 01:25:07,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 01:25:07,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 01:25:07,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 01:25:07,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 01:25:07,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 01:25:07,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 01:25:07,942 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 01:25:07,972 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 01:25:07,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 01:25:07,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 01:25:07,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 01:25:07,974 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 01:25:07,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 01:25:07,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 01:25:07,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 01:25:07,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 01:25:07,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 01:25:07,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 01:25:07,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 01:25:07,976 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 01:25:07,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 01:25:07,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 01:25:07,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 01:25:07,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 01:25:07,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 01:25:07,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 01:25:07,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 01:25:07,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 01:25:07,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 01:25:07,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 01:25:07,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 01:25:07,979 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 01:25:07,979 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 01:25:08,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 01:25:08,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 01:25:08,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 01:25:08,445 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 01:25:08,446 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 01:25:08,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/nsqm-if.c [2020-12-23 01:25:08,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c07225698/0b0b580f7bda49dca3e1e6a9997fe366/FLAG5f7246720 [2020-12-23 01:25:09,336 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 01:25:09,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/nsqm-if.c [2020-12-23 01:25:09,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c07225698/0b0b580f7bda49dca3e1e6a9997fe366/FLAG5f7246720 [2020-12-23 01:25:09,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c07225698/0b0b580f7bda49dca3e1e6a9997fe366 [2020-12-23 01:25:09,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 01:25:09,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 01:25:09,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 01:25:09,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 01:25:09,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 01:25:09,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:25:09" (1/1) ... [2020-12-23 01:25:09,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7633a1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:09, skipping insertion in model container [2020-12-23 01:25:09,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:25:09" (1/1) ... [2020-12-23 01:25:09,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 01:25:09,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 01:25:09,888 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/nsqm-if.c[590,603] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],StructAccessExpression[IdentifierExpression[~b~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~b~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],StructAccessExpression[IdentifierExpression[~a~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] [2020-12-23 01:25:09,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:25:09,944 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 01:25:09,960 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/nsqm-if.c[590,603] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],StructAccessExpression[IdentifierExpression[~b~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~b~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],StructAccessExpression[IdentifierExpression[~a~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] [2020-12-23 01:25:09,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:25:10,014 INFO L208 MainTranslator]: Completed translation [2020-12-23 01:25:10,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10 WrapperNode [2020-12-23 01:25:10,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 01:25:10,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 01:25:10,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 01:25:10,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 01:25:10,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10" (1/1) ... [2020-12-23 01:25:10,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10" (1/1) ... [2020-12-23 01:25:10,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 01:25:10,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 01:25:10,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 01:25:10,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 01:25:10,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10" (1/1) ... [2020-12-23 01:25:10,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10" (1/1) ... [2020-12-23 01:25:10,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10" (1/1) ... [2020-12-23 01:25:10,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10" (1/1) ... [2020-12-23 01:25:10,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10" (1/1) ... [2020-12-23 01:25:10,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10" (1/1) ... [2020-12-23 01:25:10,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10" (1/1) ... [2020-12-23 01:25:10,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 01:25:10,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 01:25:10,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 01:25:10,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 01:25:10,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10" (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 [2020-12-23 01:25:10,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 01:25:10,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 01:25:10,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 01:25:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 01:25:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 01:25:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 01:25:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 01:25:10,783 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 01:25:10,783 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-23 01:25:10,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:25:10 BoogieIcfgContainer [2020-12-23 01:25:10,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 01:25:10,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 01:25:10,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 01:25:10,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 01:25:10,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:25:09" (1/3) ... [2020-12-23 01:25:10,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3662b8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:25:10, skipping insertion in model container [2020-12-23 01:25:10,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:10" (2/3) ... [2020-12-23 01:25:10,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3662b8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:25:10, skipping insertion in model container [2020-12-23 01:25:10,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:25:10" (3/3) ... [2020-12-23 01:25:10,831 INFO L111 eAbstractionObserver]: Analyzing ICFG nsqm-if.c [2020-12-23 01:25:10,839 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 01:25:10,844 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 01:25:10,870 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 01:25:10,896 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 01:25:10,897 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 01:25:10,897 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 01:25:10,897 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 01:25:10,897 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 01:25:10,897 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 01:25:10,897 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 01:25:10,898 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 01:25:10,911 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-12-23 01:25:10,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 01:25:10,918 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:10,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:10,920 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:10,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:10,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1670316217, now seen corresponding path program 1 times [2020-12-23 01:25:10,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:10,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849028875] [2020-12-23 01:25:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:25:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:25:11,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849028875] [2020-12-23 01:25:11,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:25:11,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 01:25:11,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440125347] [2020-12-23 01:25:11,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 01:25:11,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:11,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 01:25:11,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 01:25:11,186 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-12-23 01:25:11,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:11,212 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2020-12-23 01:25:11,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 01:25:11,213 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-23 01:25:11,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:11,229 INFO L225 Difference]: With dead ends: 42 [2020-12-23 01:25:11,230 INFO L226 Difference]: Without dead ends: 19 [2020-12-23 01:25:11,242 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 [2020-12-23 01:25:11,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-23 01:25:11,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-23 01:25:11,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-23 01:25:11,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-12-23 01:25:11,286 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2020-12-23 01:25:11,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:11,286 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-12-23 01:25:11,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 01:25:11,286 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-12-23 01:25:11,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 01:25:11,288 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:11,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:11,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 01:25:11,290 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:11,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:11,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1000416578, now seen corresponding path program 1 times [2020-12-23 01:25:11,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:11,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065340592] [2020-12-23 01:25:11,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:25:11,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:25:11,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065340592] [2020-12-23 01:25:11,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:25:11,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 01:25:11,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096564760] [2020-12-23 01:25:11,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 01:25:11,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:11,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 01:25:11,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:25:11,442 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 4 states. [2020-12-23 01:25:11,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:11,569 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2020-12-23 01:25:11,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 01:25:11,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-23 01:25:11,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:11,572 INFO L225 Difference]: With dead ends: 45 [2020-12-23 01:25:11,572 INFO L226 Difference]: Without dead ends: 31 [2020-12-23 01:25:11,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:25:11,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-23 01:25:11,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2020-12-23 01:25:11,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-23 01:25:11,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-12-23 01:25:11,580 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2020-12-23 01:25:11,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:11,580 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-12-23 01:25:11,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 01:25:11,581 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-12-23 01:25:11,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 01:25:11,582 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:11,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:11,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 01:25:11,582 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:11,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:11,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1992201947, now seen corresponding path program 1 times [2020-12-23 01:25:11,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:11,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563998322] [2020-12-23 01:25:11,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:11,605 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:25:11,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2021828558] [2020-12-23 01:25:11,606 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 [2020-12-23 01:25:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:25:11,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-23 01:25:11,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:25:12,019 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 13 treesize of output 9 [2020-12-23 01:25:12,023 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:12,037 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:12,039 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:12,040 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2020-12-23 01:25:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:25:12,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563998322] [2020-12-23 01:25:12,154 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:25:12,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021828558] [2020-12-23 01:25:12,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:25:12,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-12-23 01:25:12,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500937314] [2020-12-23 01:25:12,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 01:25:12,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:12,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 01:25:12,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:25:12,158 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 10 states. [2020-12-23 01:25:13,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:13,130 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2020-12-23 01:25:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 01:25:13,131 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-12-23 01:25:13,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:13,133 INFO L225 Difference]: With dead ends: 72 [2020-12-23 01:25:13,133 INFO L226 Difference]: Without dead ends: 70 [2020-12-23 01:25:13,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=136, Invalid=244, Unknown=0, NotChecked=0, Total=380 [2020-12-23 01:25:13,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-12-23 01:25:13,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 34. [2020-12-23 01:25:13,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-23 01:25:13,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2020-12-23 01:25:13,144 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 18 [2020-12-23 01:25:13,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:13,145 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2020-12-23 01:25:13,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 01:25:13,145 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2020-12-23 01:25:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 01:25:13,146 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:13,146 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:13,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 01:25:13,360 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:13,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:13,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1024942859, now seen corresponding path program 1 times [2020-12-23 01:25:13,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:13,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088878643] [2020-12-23 01:25:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:13,387 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:25:13,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2024187850] [2020-12-23 01:25:13,388 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 [2020-12-23 01:25:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:25:13,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 01:25:13,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:25:13,567 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:25:13,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088878643] [2020-12-23 01:25:13,569 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:25:13,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024187850] [2020-12-23 01:25:13,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:25:13,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 01:25:13,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723828965] [2020-12-23 01:25:13,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 01:25:13,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:13,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 01:25:13,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-23 01:25:13,572 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 7 states. [2020-12-23 01:25:13,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:13,752 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2020-12-23 01:25:13,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 01:25:13,753 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-12-23 01:25:13,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:13,755 INFO L225 Difference]: With dead ends: 85 [2020-12-23 01:25:13,755 INFO L226 Difference]: Without dead ends: 58 [2020-12-23 01:25:13,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:25:13,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-12-23 01:25:13,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 36. [2020-12-23 01:25:13,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-23 01:25:13,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-12-23 01:25:13,775 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 21 [2020-12-23 01:25:13,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:13,775 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-12-23 01:25:13,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 01:25:13,776 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-12-23 01:25:13,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 01:25:13,778 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:13,779 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:13,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:25:13,994 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:13,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:13,995 INFO L82 PathProgramCache]: Analyzing trace with hash -748772581, now seen corresponding path program 1 times [2020-12-23 01:25:13,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:13,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912527268] [2020-12-23 01:25:13,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:14,013 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:25:14,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [236506191] [2020-12-23 01:25:14,014 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 [2020-12-23 01:25:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:25:14,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 01:25:14,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:25:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 01:25:14,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912527268] [2020-12-23 01:25:14,183 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:25:14,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236506191] [2020-12-23 01:25:14,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:25:14,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 01:25:14,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073922591] [2020-12-23 01:25:14,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 01:25:14,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:14,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 01:25:14,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-23 01:25:14,185 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 7 states. [2020-12-23 01:25:14,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:14,321 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2020-12-23 01:25:14,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 01:25:14,347 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-12-23 01:25:14,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:14,347 INFO L225 Difference]: With dead ends: 66 [2020-12-23 01:25:14,348 INFO L226 Difference]: Without dead ends: 43 [2020-12-23 01:25:14,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:25:14,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-23 01:25:14,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 27. [2020-12-23 01:25:14,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-23 01:25:14,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-12-23 01:25:14,353 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 22 [2020-12-23 01:25:14,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:14,354 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-12-23 01:25:14,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 01:25:14,354 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-12-23 01:25:14,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-23 01:25:14,355 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:14,355 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] [2020-12-23 01:25:14,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:25:14,572 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:14,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:14,573 INFO L82 PathProgramCache]: Analyzing trace with hash 939318754, now seen corresponding path program 1 times [2020-12-23 01:25:14,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:14,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256130841] [2020-12-23 01:25:14,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:14,601 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:25:14,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401881701] [2020-12-23 01:25:14,602 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 [2020-12-23 01:25:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:25:14,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-23 01:25:14,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:25:14,706 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 13 treesize of output 9 [2020-12-23 01:25:14,707 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:14,712 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:14,713 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:14,713 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2020-12-23 01:25:14,911 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2020-12-23 01:25:14,913 INFO L348 Elim1Store]: treesize reduction 77, result has 62.1 percent of original size [2020-12-23 01:25:14,913 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 46 treesize of output 145 [2020-12-23 01:25:14,922 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:14,979 INFO L625 ElimStorePlain]: treesize reduction 97, result has 36.2 percent of original size [2020-12-23 01:25:14,987 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:14,987 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:49, output treesize:9 [2020-12-23 01:25:15,034 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:25:15,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256130841] [2020-12-23 01:25:15,035 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:25:15,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401881701] [2020-12-23 01:25:15,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:25:15,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-12-23 01:25:15,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769311631] [2020-12-23 01:25:15,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 01:25:15,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:15,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 01:25:15,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:25:15,037 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 10 states. [2020-12-23 01:25:15,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:15,220 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2020-12-23 01:25:15,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:25:15,220 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-12-23 01:25:15,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:15,221 INFO L225 Difference]: With dead ends: 43 [2020-12-23 01:25:15,221 INFO L226 Difference]: Without dead ends: 41 [2020-12-23 01:25:15,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:25:15,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-23 01:25:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2020-12-23 01:25:15,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-23 01:25:15,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-12-23 01:25:15,228 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 24 [2020-12-23 01:25:15,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:15,228 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-12-23 01:25:15,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 01:25:15,229 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-12-23 01:25:15,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-23 01:25:15,229 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:15,230 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:15,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:25:15,443 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:15,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:15,444 INFO L82 PathProgramCache]: Analyzing trace with hash 430403928, now seen corresponding path program 1 times [2020-12-23 01:25:15,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:15,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827573319] [2020-12-23 01:25:15,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:15,464 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:25:15,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39566329] [2020-12-23 01:25:15,464 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 [2020-12-23 01:25:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:25:15,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 34 conjunts are in the unsatisfiable core [2020-12-23 01:25:15,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:25:15,561 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-12-23 01:25:15,565 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:15,576 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:15,578 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:15,578 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2020-12-23 01:25:15,609 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 01:25:15,610 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:15,624 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:15,625 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:15,625 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2020-12-23 01:25:15,698 INFO L348 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2020-12-23 01:25:15,698 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 22 [2020-12-23 01:25:15,703 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:15,716 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:15,717 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:15,717 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:24 [2020-12-23 01:25:15,804 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-12-23 01:25:15,804 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2020-12-23 01:25:15,808 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:15,832 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:15,834 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:15,834 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:36 [2020-12-23 01:25:15,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:15,969 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-12-23 01:25:15,970 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 47 [2020-12-23 01:25:15,973 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:15,999 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:16,003 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:16,004 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:57, output treesize:49 [2020-12-23 01:25:16,276 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:25:16,281 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:25:16,285 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:25:16,329 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:25:16,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827573319] [2020-12-23 01:25:16,330 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:25:16,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39566329] [2020-12-23 01:25:16,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:25:16,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-12-23 01:25:16,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128221183] [2020-12-23 01:25:16,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-23 01:25:16,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:16,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-23 01:25:16,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:25:16,332 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 13 states. [2020-12-23 01:25:16,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:16,963 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2020-12-23 01:25:16,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 01:25:16,964 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2020-12-23 01:25:16,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:16,965 INFO L225 Difference]: With dead ends: 42 [2020-12-23 01:25:16,965 INFO L226 Difference]: Without dead ends: 40 [2020-12-23 01:25:16,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-12-23 01:25:16,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-23 01:25:16,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2020-12-23 01:25:16,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-23 01:25:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2020-12-23 01:25:16,972 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 28 [2020-12-23 01:25:16,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:16,973 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2020-12-23 01:25:16,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-23 01:25:16,973 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2020-12-23 01:25:16,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 01:25:16,974 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:16,974 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:17,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 01:25:17,188 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:17,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:17,189 INFO L82 PathProgramCache]: Analyzing trace with hash 877615566, now seen corresponding path program 2 times [2020-12-23 01:25:17,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:17,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726511852] [2020-12-23 01:25:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:17,220 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:25:17,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61986625] [2020-12-23 01:25:17,221 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 [2020-12-23 01:25:17,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:25:17,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:25:17,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:25:17,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:25:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-23 01:25:17,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726511852] [2020-12-23 01:25:17,415 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:25:17,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61986625] [2020-12-23 01:25:17,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:25:17,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:25:17,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306854511] [2020-12-23 01:25:17,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:25:17,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:17,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:25:17,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:25:17,417 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 9 states. [2020-12-23 01:25:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:17,578 INFO L93 Difference]: Finished difference Result 86 states and 92 transitions. [2020-12-23 01:25:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:25:17,578 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2020-12-23 01:25:17,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:17,583 INFO L225 Difference]: With dead ends: 86 [2020-12-23 01:25:17,583 INFO L226 Difference]: Without dead ends: 51 [2020-12-23 01:25:17,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:25:17,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-23 01:25:17,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2020-12-23 01:25:17,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-23 01:25:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-12-23 01:25:17,601 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 32 [2020-12-23 01:25:17,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:17,602 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-12-23 01:25:17,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:25:17,602 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-12-23 01:25:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-23 01:25:17,606 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:17,606 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:17,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:25:17,821 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:17,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:17,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1129715953, now seen corresponding path program 3 times [2020-12-23 01:25:17,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:17,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883403668] [2020-12-23 01:25:17,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:17,839 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:25:17,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [215384901] [2020-12-23 01:25:17,840 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 [2020-12-23 01:25:17,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-12-23 01:25:17,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:25:17,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 48 conjunts are in the unsatisfiable core [2020-12-23 01:25:17,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:25:17,978 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-12-23 01:25:17,981 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:17,987 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:17,988 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:17,988 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2020-12-23 01:25:18,009 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 01:25:18,010 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:18,017 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:18,018 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:18,018 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2020-12-23 01:25:18,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,053 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:18,054 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 49 [2020-12-23 01:25:18,056 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:18,084 INFO L625 ElimStorePlain]: treesize reduction 19, result has 69.8 percent of original size [2020-12-23 01:25:18,086 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:18,087 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:44 [2020-12-23 01:25:18,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,203 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:18,204 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 92 [2020-12-23 01:25:18,209 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:18,265 INFO L625 ElimStorePlain]: treesize reduction 40, result has 65.2 percent of original size [2020-12-23 01:25:18,266 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:18,267 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:75 [2020-12-23 01:25:18,324 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:25:18,419 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:25:18,683 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:25:18,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,723 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2020-12-23 01:25:18,726 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:18,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:18,762 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:18,763 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 90 [2020-12-23 01:25:18,767 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:18,945 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2020-12-23 01:25:18,946 INFO L625 ElimStorePlain]: treesize reduction 50, result has 74.6 percent of original size [2020-12-23 01:25:18,950 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. [2020-12-23 01:25:18,951 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:154, output treesize:147 [2020-12-23 01:25:19,239 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:25:19,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:19,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:19,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:19,264 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:19,266 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:19,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:19,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:19,284 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:19,291 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:19,314 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:19,315 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 98 treesize of output 127 [2020-12-23 01:25:19,319 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:19,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:19,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:19,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:19,334 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:19,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:19,336 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:19,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:19,339 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 72 [2020-12-23 01:25:19,342 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:19,557 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2020-12-23 01:25:19,560 INFO L625 ElimStorePlain]: treesize reduction 93, result has 72.5 percent of original size [2020-12-23 01:25:19,565 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. [2020-12-23 01:25:19,566 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:227, output treesize:245 [2020-12-23 01:25:19,965 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-23 01:25:20,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,245 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:20,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:20,249 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:20,407 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-23 01:25:20,408 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:20,409 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 143 treesize of output 380 [2020-12-23 01:25:20,421 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-23 01:25:20,421 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:25:20,423 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 01:25:20,423 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:25:20,424 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 01:25:20,425 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:25:20,426 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 1] term [2020-12-23 01:25:20,427 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:25:20,428 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2020-12-23 01:25:20,428 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:25:20,429 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:25:20,429 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:25:20,430 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:25:20,430 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:25:20,431 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:25:20,431 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:25:20,454 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:20,644 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 54 [2020-12-23 01:25:20,645 INFO L625 ElimStorePlain]: treesize reduction 577, result has 19.3 percent of original size [2020-12-23 01:25:20,649 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:20,650 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:164, output treesize:138 [2020-12-23 01:25:21,425 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:25:21,431 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:25:21,442 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:25:21,447 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:25:21,466 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 01:25:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:25:21,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883403668] [2020-12-23 01:25:21,558 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:25:21,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215384901] [2020-12-23 01:25:21,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:25:21,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-12-23 01:25:21,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085357434] [2020-12-23 01:25:21,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-12-23 01:25:21,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:21,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-12-23 01:25:21,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2020-12-23 01:25:21,560 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 23 states. [2020-12-23 01:25:22,357 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2020-12-23 01:25:22,532 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-12-23 01:25:22,961 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-12-23 01:25:23,208 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-12-23 01:25:23,672 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-12-23 01:25:23,982 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2020-12-23 01:25:24,215 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2020-12-23 01:25:24,464 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-12-23 01:25:24,787 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2020-12-23 01:25:25,075 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2020-12-23 01:25:25,381 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 73 [2020-12-23 01:25:25,734 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2020-12-23 01:25:26,084 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 45 [2020-12-23 01:25:26,540 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 84 [2020-12-23 01:25:27,053 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2020-12-23 01:25:27,403 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 74 [2020-12-23 01:25:27,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:27,437 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2020-12-23 01:25:27,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 01:25:27,438 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 38 [2020-12-23 01:25:27,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:27,439 INFO L225 Difference]: With dead ends: 61 [2020-12-23 01:25:27,439 INFO L226 Difference]: Without dead ends: 45 [2020-12-23 01:25:27,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=339, Invalid=1553, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 01:25:27,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-23 01:25:27,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2020-12-23 01:25:27,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-23 01:25:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2020-12-23 01:25:27,448 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 38 [2020-12-23 01:25:27,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:27,448 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2020-12-23 01:25:27,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-12-23 01:25:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2020-12-23 01:25:27,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-23 01:25:27,449 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:27,449 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:27,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:25:27,665 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:27,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:27,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1247413058, now seen corresponding path program 4 times [2020-12-23 01:25:27,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:27,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120048016] [2020-12-23 01:25:27,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:27,690 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:25:27,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432376564] [2020-12-23 01:25:27,690 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 [2020-12-23 01:25:27,761 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 01:25:27,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:25:27,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 01:25:27,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:25:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 01:25:27,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120048016] [2020-12-23 01:25:27,907 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:25:27,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432376564] [2020-12-23 01:25:27,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:25:27,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-12-23 01:25:27,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599601756] [2020-12-23 01:25:27,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 01:25:27,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:27,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 01:25:27,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-12-23 01:25:27,910 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 11 states. [2020-12-23 01:25:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:28,133 INFO L93 Difference]: Finished difference Result 90 states and 94 transitions. [2020-12-23 01:25:28,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 01:25:28,134 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-12-23 01:25:28,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:28,134 INFO L225 Difference]: With dead ends: 90 [2020-12-23 01:25:28,134 INFO L226 Difference]: Without dead ends: 63 [2020-12-23 01:25:28,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-12-23 01:25:28,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-23 01:25:28,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 45. [2020-12-23 01:25:28,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-23 01:25:28,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2020-12-23 01:25:28,144 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 41 [2020-12-23 01:25:28,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:28,144 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2020-12-23 01:25:28,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 01:25:28,144 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2020-12-23 01:25:28,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-23 01:25:28,145 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:28,145 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:28,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 01:25:28,359 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:28,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:28,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1596358930, now seen corresponding path program 5 times [2020-12-23 01:25:28,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:28,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063664004] [2020-12-23 01:25:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:28,381 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:25:28,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [224930396] [2020-12-23 01:25:28,381 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 [2020-12-23 01:25:28,494 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2020-12-23 01:25:28,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:25:28,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 43 conjunts are in the unsatisfiable core [2020-12-23 01:25:28,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:25:28,515 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-12-23 01:25:28,517 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:28,522 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:28,522 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:28,523 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:8 [2020-12-23 01:25:28,538 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 01:25:28,538 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:28,546 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:28,547 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:28,547 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2020-12-23 01:25:28,604 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:28,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,607 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2020-12-23 01:25:28,608 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:28,619 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:28,620 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:28,625 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:45 [2020-12-23 01:25:28,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,679 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:28,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,683 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 41 [2020-12-23 01:25:28,684 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:28,699 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:28,700 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:28,701 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:51 [2020-12-23 01:25:28,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,791 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:28,792 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 1 case distinctions, treesize of input 60 treesize of output 77 [2020-12-23 01:25:28,794 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:28,831 INFO L625 ElimStorePlain]: treesize reduction 19, result has 75.3 percent of original size [2020-12-23 01:25:28,833 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:28,833 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:58 [2020-12-23 01:25:28,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:28,932 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:28,933 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 87 [2020-12-23 01:25:28,937 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:28,989 INFO L625 ElimStorePlain]: treesize reduction 26, result has 72.9 percent of original size [2020-12-23 01:25:28,991 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:28,991 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:74, output treesize:70 [2020-12-23 01:25:29,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,137 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:29,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,202 INFO L348 Elim1Store]: treesize reduction 55, result has 53.0 percent of original size [2020-12-23 01:25:29,203 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 93 treesize of output 148 [2020-12-23 01:25:29,207 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:29,294 INFO L625 ElimStorePlain]: treesize reduction 46, result has 71.8 percent of original size [2020-12-23 01:25:29,296 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:29,296 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:106, output treesize:117 [2020-12-23 01:25:29,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,495 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:25:29,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,578 INFO L348 Elim1Store]: treesize reduction 128, result has 36.6 percent of original size [2020-12-23 01:25:29,579 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 142 treesize of output 171 [2020-12-23 01:25:29,583 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:29,679 INFO L625 ElimStorePlain]: treesize reduction 57, result has 70.0 percent of original size [2020-12-23 01:25:29,680 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:29,681 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:155, output treesize:133 [2020-12-23 01:25:29,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:25:29,970 INFO L348 Elim1Store]: treesize reduction 113, result has 25.2 percent of original size [2020-12-23 01:25:29,971 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 113 treesize of output 121 [2020-12-23 01:25:29,980 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:30,064 INFO L625 ElimStorePlain]: treesize reduction 18, result has 86.7 percent of original size [2020-12-23 01:25:30,069 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:30,069 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:120, output treesize:117 [2020-12-23 01:25:30,465 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:25:30,467 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:25:30,470 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:25:30,471 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:25:30,476 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:25:30,477 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:25:30,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:25:30,485 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:25:30,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:25:30,491 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:25:30,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:25:30,496 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:25:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 13 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:25:30,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063664004] [2020-12-23 01:25:30,615 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:25:30,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224930396] [2020-12-23 01:25:30,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:25:30,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-12-23 01:25:30,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819700198] [2020-12-23 01:25:30,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-12-23 01:25:30,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:30,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-12-23 01:25:30,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 01:25:30,620 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 21 states. [2020-12-23 01:25:34,325 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2020-12-23 01:25:34,646 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-23 01:25:34,926 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-12-23 01:25:34,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:34,977 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2020-12-23 01:25:34,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-23 01:25:34,978 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 44 [2020-12-23 01:25:34,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:34,979 INFO L225 Difference]: With dead ends: 84 [2020-12-23 01:25:34,979 INFO L226 Difference]: Without dead ends: 82 [2020-12-23 01:25:34,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=184, Invalid=872, Unknown=0, NotChecked=0, Total=1056 [2020-12-23 01:25:34,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-23 01:25:34,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 57. [2020-12-23 01:25:34,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-23 01:25:34,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2020-12-23 01:25:34,992 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 44 [2020-12-23 01:25:34,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:34,992 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2020-12-23 01:25:34,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-12-23 01:25:34,992 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2020-12-23 01:25:34,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-23 01:25:34,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:34,993 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:35,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:25:35,208 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:35,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:35,209 INFO L82 PathProgramCache]: Analyzing trace with hash -207652447, now seen corresponding path program 6 times [2020-12-23 01:25:35,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:35,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979336712] [2020-12-23 01:25:35,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:35,245 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:25:35,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1834460129] [2020-12-23 01:25:35,250 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 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 [2020-12-23 01:25:35,368 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2020-12-23 01:25:35,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:25:35,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 01:25:35,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:25:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 01:25:35,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979336712] [2020-12-23 01:25:35,538 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:25:35,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834460129] [2020-12-23 01:25:35,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:25:35,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-12-23 01:25:35,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417612903] [2020-12-23 01:25:35,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-23 01:25:35,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:35,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-23 01:25:35,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:25:35,540 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 13 states. [2020-12-23 01:25:35,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:25:35,861 INFO L93 Difference]: Finished difference Result 124 states and 130 transitions. [2020-12-23 01:25:35,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 01:25:35,862 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 47 [2020-12-23 01:25:35,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:25:35,863 INFO L225 Difference]: With dead ends: 124 [2020-12-23 01:25:35,863 INFO L226 Difference]: Without dead ends: 75 [2020-12-23 01:25:35,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-12-23 01:25:35,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-12-23 01:25:35,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 51. [2020-12-23 01:25:35,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-23 01:25:35,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-12-23 01:25:35,873 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 47 [2020-12-23 01:25:35,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:25:35,874 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-12-23 01:25:35,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-23 01:25:35,874 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-12-23 01:25:35,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 01:25:35,875 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:25:35,875 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:25:36,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:25:36,089 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:25:36,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:25:36,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1104451537, now seen corresponding path program 7 times [2020-12-23 01:25:36,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:25:36,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557517535] [2020-12-23 01:25:36,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:25:36,119 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:25:36,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698200104] [2020-12-23 01:25:36,122 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-12-23 01:25:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:25:36,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 46 conjunts are in the unsatisfiable core [2020-12-23 01:25:36,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:25:36,228 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-12-23 01:25:36,229 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:36,234 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:36,235 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:36,236 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:8 [2020-12-23 01:25:36,253 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 01:25:36,254 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:36,262 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:25:36,263 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:36,263 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2020-12-23 01:25:36,348 INFO L348 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2020-12-23 01:25:36,348 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 62 [2020-12-23 01:25:36,351 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:36,383 INFO L625 ElimStorePlain]: treesize reduction 31, result has 54.4 percent of original size [2020-12-23 01:25:36,384 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:36,384 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2020-12-23 01:25:36,507 INFO L348 Elim1Store]: treesize reduction 126, result has 31.5 percent of original size [2020-12-23 01:25:36,508 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 79 [2020-12-23 01:25:36,510 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:36,544 INFO L625 ElimStorePlain]: treesize reduction 28, result has 67.8 percent of original size [2020-12-23 01:25:36,545 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:36,546 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:59 [2020-12-23 01:25:36,771 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 43 [2020-12-23 01:25:36,772 INFO L348 Elim1Store]: treesize reduction 116, result has 52.5 percent of original size [2020-12-23 01:25:36,772 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 154 [2020-12-23 01:25:36,782 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:36,840 INFO L625 ElimStorePlain]: treesize reduction 97, result has 36.2 percent of original size [2020-12-23 01:25:36,841 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:25:36,842 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:73, output treesize:55 [2020-12-23 01:25:37,410 WARN L197 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2020-12-23 01:25:37,411 INFO L348 Elim1Store]: treesize reduction 168, result has 65.1 percent of original size [2020-12-23 01:25:37,412 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 74 treesize of output 340 [2020-12-23 01:25:37,417 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 1] term [2020-12-23 01:25:37,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:25:37,419 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 1] term [2020-12-23 01:25:37,419 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:25:37,420 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 1] term [2020-12-23 01:25:37,420 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:25:37,421 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 1] term [2020-12-23 01:25:37,421 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:25:37,421 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 1] term [2020-12-23 01:25:37,421 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:25:37,422 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-12-23 01:25:37,422 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:25:37,423 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 1] term [2020-12-23 01:25:37,423 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:25:37,443 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:37,583 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 42 [2020-12-23 01:25:37,584 INFO L625 ElimStorePlain]: treesize reduction 348, result has 19.1 percent of original size [2020-12-23 01:25:37,592 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:37,592 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:86, output treesize:82 [2020-12-23 01:25:38,053 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2020-12-23 01:25:38,054 INFO L348 Elim1Store]: treesize reduction 66, result has 78.1 percent of original size [2020-12-23 01:25:38,055 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 83 treesize of output 334 [2020-12-23 01:25:38,071 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:38,234 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 51 [2020-12-23 01:25:38,234 INFO L625 ElimStorePlain]: treesize reduction 393, result has 19.3 percent of original size [2020-12-23 01:25:38,238 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:38,238 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:98, output treesize:94 [2020-12-23 01:25:39,007 WARN L197 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 137 [2020-12-23 01:25:39,009 INFO L348 Elim1Store]: treesize reduction 121, result has 76.5 percent of original size [2020-12-23 01:25:39,010 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 31 case distinctions, treesize of input 115 treesize of output 515 [2020-12-23 01:25:39,031 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:39,234 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 58 [2020-12-23 01:25:39,235 INFO L625 ElimStorePlain]: treesize reduction 522, result has 20.1 percent of original size [2020-12-23 01:25:39,239 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:39,239 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:130, output treesize:131 [2020-12-23 01:25:40,186 WARN L197 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 146 [2020-12-23 01:25:40,187 INFO L348 Elim1Store]: treesize reduction 146, result has 74.9 percent of original size [2020-12-23 01:25:40,188 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 34 case distinctions, treesize of input 135 treesize of output 563 [2020-12-23 01:25:40,207 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:40,457 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 64 [2020-12-23 01:25:40,463 INFO L625 ElimStorePlain]: treesize reduction 654, result has 17.3 percent of original size [2020-12-23 01:25:40,466 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:40,466 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:150, output treesize:137 [2020-12-23 01:25:41,534 WARN L197 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 155 [2020-12-23 01:25:41,535 INFO L348 Elim1Store]: treesize reduction 183, result has 72.3 percent of original size [2020-12-23 01:25:41,536 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 150 treesize of output 610 [2020-12-23 01:25:41,554 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:41,889 WARN L197 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 69 [2020-12-23 01:25:41,890 INFO L625 ElimStorePlain]: treesize reduction 764, result has 16.9 percent of original size [2020-12-23 01:25:41,894 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:41,895 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:165, output treesize:155 [2020-12-23 01:25:44,050 WARN L197 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 294 DAG size of output: 233 [2020-12-23 01:25:44,051 INFO L348 Elim1Store]: treesize reduction 235, result has 77.2 percent of original size [2020-12-23 01:25:44,051 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 1 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 57 case distinctions, treesize of input 176 treesize of output 946 [2020-12-23 01:25:44,080 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 1] term [2020-12-23 01:25:44,080 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:25:44,081 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 1] term [2020-12-23 01:25:44,082 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:25:44,082 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 1] term [2020-12-23 01:25:44,082 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:25:44,084 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 1] term [2020-12-23 01:25:44,085 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:25:44,087 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 1] term [2020-12-23 01:25:44,087 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:25:44,088 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-12-23 01:25:44,088 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:25:44,089 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 1] term [2020-12-23 01:25:44,089 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:25:44,107 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:25:44,774 WARN L197 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 81 [2020-12-23 01:25:44,775 INFO L625 ElimStorePlain]: treesize reduction 1494, result has 11.4 percent of original size [2020-12-23 01:25:44,784 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2020-12-23 01:25:44,785 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:196, output treesize:192 [2020-12-23 01:25:50,473 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:25:50,476 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:25:50,478 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:25:50,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:25:50,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:25:50,492 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 01:25:50,696 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 4 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:25:50,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557517535] [2020-12-23 01:25:50,697 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:25:50,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698200104] [2020-12-23 01:25:50,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:25:50,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-12-23 01:25:50,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489572337] [2020-12-23 01:25:50,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-12-23 01:25:50,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:25:50,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-12-23 01:25:50,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=564, Unknown=2, NotChecked=0, Total=650 [2020-12-23 01:25:50,699 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 26 states. [2020-12-23 01:25:52,934 WARN L197 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-12-23 01:25:53,589 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-12-23 01:25:57,084 WARN L197 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2020-12-23 01:26:02,053 WARN L197 SmtUtils]: Spent 4.35 s on a formula simplification that was a NOOP. DAG size: 102 [2020-12-23 01:26:12,816 WARN L197 SmtUtils]: Spent 8.86 s on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-12-23 01:26:19,845 WARN L197 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-12-23 01:26:22,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:26:22,416 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2020-12-23 01:26:22,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-23 01:26:22,418 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 50 [2020-12-23 01:26:22,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:26:22,419 INFO L225 Difference]: With dead ends: 62 [2020-12-23 01:26:22,419 INFO L226 Difference]: Without dead ends: 60 [2020-12-23 01:26:22,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 28.1s TimeCoverageRelationStatistics Valid=167, Invalid=1091, Unknown=2, NotChecked=0, Total=1260 [2020-12-23 01:26:22,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-23 01:26:22,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2020-12-23 01:26:22,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-12-23 01:26:22,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-12-23 01:26:22,432 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 50 [2020-12-23 01:26:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:26:22,433 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-12-23 01:26:22,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-12-23 01:26:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-12-23 01:26:22,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 01:26:22,434 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:26:22,434 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:26:22,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-23 01:26:22,649 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:26:22,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:26:22,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1675453497, now seen corresponding path program 8 times [2020-12-23 01:26:22,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:26:22,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392200512] [2020-12-23 01:26:22,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:26:22,673 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:26:22,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [881694281] [2020-12-23 01:26:22,674 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:26:22,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:26:22,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:26:22,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 54 conjunts are in the unsatisfiable core [2020-12-23 01:26:22,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:26:22,783 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-12-23 01:26:22,794 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:22,803 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:22,804 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:22,804 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2020-12-23 01:26:22,823 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 01:26:22,824 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:22,837 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:22,838 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:22,839 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2020-12-23 01:26:22,958 INFO L348 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2020-12-23 01:26:22,959 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 62 [2020-12-23 01:26:22,961 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:23,012 INFO L625 ElimStorePlain]: treesize reduction 28, result has 58.8 percent of original size [2020-12-23 01:26:23,014 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:23,014 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:40 [2020-12-23 01:26:23,222 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2020-12-23 01:26:23,223 INFO L348 Elim1Store]: treesize reduction 79, result has 52.4 percent of original size [2020-12-23 01:26:23,224 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 108 [2020-12-23 01:26:23,227 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:23,294 INFO L625 ElimStorePlain]: treesize reduction 64, result has 43.4 percent of original size [2020-12-23 01:26:23,296 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:23,296 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:49 [2020-12-23 01:26:23,603 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 38 [2020-12-23 01:26:23,604 INFO L348 Elim1Store]: treesize reduction 166, result has 37.4 percent of original size [2020-12-23 01:26:23,605 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 123 [2020-12-23 01:26:23,608 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:23,701 INFO L625 ElimStorePlain]: treesize reduction 64, result has 52.9 percent of original size [2020-12-23 01:26:23,702 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:23,703 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:72 [2020-12-23 01:26:24,141 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 53 [2020-12-23 01:26:24,142 INFO L348 Elim1Store]: treesize reduction 165, result has 50.6 percent of original size [2020-12-23 01:26:24,142 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 77 treesize of output 198 [2020-12-23 01:26:24,147 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:24,265 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-12-23 01:26:24,266 INFO L625 ElimStorePlain]: treesize reduction 118, result has 36.2 percent of original size [2020-12-23 01:26:24,268 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:24,269 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:87, output treesize:67 [2020-12-23 01:26:24,694 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2020-12-23 01:26:24,695 INFO L348 Elim1Store]: treesize reduction 83, result has 57.7 percent of original size [2020-12-23 01:26:24,695 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 196 [2020-12-23 01:26:24,702 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:24,843 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2020-12-23 01:26:24,844 INFO L625 ElimStorePlain]: treesize reduction 182, result has 30.3 percent of original size [2020-12-23 01:26:24,848 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:24,848 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:83, output treesize:79 [2020-12-23 01:26:25,105 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:25,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:25,466 WARN L197 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 79 [2020-12-23 01:26:25,467 INFO L348 Elim1Store]: treesize reduction 83, result has 71.3 percent of original size [2020-12-23 01:26:25,468 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 323 [2020-12-23 01:26:25,487 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:25,693 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 56 [2020-12-23 01:26:25,694 INFO L625 ElimStorePlain]: treesize reduction 388, result has 23.0 percent of original size [2020-12-23 01:26:25,695 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:25,695 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:115, output treesize:116 [2020-12-23 01:26:25,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:25,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:25,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:26,517 WARN L197 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 106 [2020-12-23 01:26:26,518 INFO L348 Elim1Store]: treesize reduction 101, result has 74.8 percent of original size [2020-12-23 01:26:26,519 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 28 case distinctions, treesize of input 140 treesize of output 446 [2020-12-23 01:26:26,534 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:26,809 WARN L197 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 60 [2020-12-23 01:26:26,810 INFO L625 ElimStorePlain]: treesize reduction 461, result has 24.3 percent of original size [2020-12-23 01:26:26,812 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:26,812 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:153, output treesize:148 [2020-12-23 01:26:27,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:27,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:27,146 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:27,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:27,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:27,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:27,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:27,517 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 79 [2020-12-23 01:26:27,518 INFO L348 Elim1Store]: treesize reduction 83, result has 71.3 percent of original size [2020-12-23 01:26:27,519 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 7 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 142 treesize of output 351 [2020-12-23 01:26:27,529 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:27,774 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 63 [2020-12-23 01:26:27,775 INFO L625 ElimStorePlain]: treesize reduction 333, result has 31.5 percent of original size [2020-12-23 01:26:27,777 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:27,778 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:155, output treesize:153 [2020-12-23 01:26:28,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:28,567 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 88 [2020-12-23 01:26:28,568 INFO L348 Elim1Store]: treesize reduction 83, result has 72.7 percent of original size [2020-12-23 01:26:28,568 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 22 case distinctions, treesize of input 165 treesize of output 391 [2020-12-23 01:26:28,580 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:28,889 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 72 [2020-12-23 01:26:28,890 INFO L625 ElimStorePlain]: treesize reduction 393, result has 31.4 percent of original size [2020-12-23 01:26:28,897 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:28,898 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:178, output treesize:180 [2020-12-23 01:26:34,098 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:26:34,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:26:34,102 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 01:26:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:26:34,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392200512] [2020-12-23 01:26:34,272 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:26:34,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881694281] [2020-12-23 01:26:34,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:26:34,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-12-23 01:26:34,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708360950] [2020-12-23 01:26:34,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-12-23 01:26:34,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:26:34,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-12-23 01:26:34,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=613, Unknown=1, NotChecked=0, Total=702 [2020-12-23 01:26:34,274 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 27 states. [2020-12-23 01:26:36,171 WARN L197 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-12-23 01:26:36,905 WARN L197 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2020-12-23 01:26:37,672 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2020-12-23 01:26:38,230 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-12-23 01:26:39,409 WARN L197 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-12-23 01:26:44,025 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-12-23 01:26:46,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:26:46,519 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2020-12-23 01:26:46,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 01:26:46,521 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 54 [2020-12-23 01:26:46,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:26:46,522 INFO L225 Difference]: With dead ends: 66 [2020-12-23 01:26:46,522 INFO L226 Difference]: Without dead ends: 64 [2020-12-23 01:26:46,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=166, Invalid=1093, Unknown=1, NotChecked=0, Total=1260 [2020-12-23 01:26:46,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-12-23 01:26:46,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 59. [2020-12-23 01:26:46,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-23 01:26:46,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-12-23 01:26:46,535 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 54 [2020-12-23 01:26:46,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:26:46,536 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-12-23 01:26:46,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-12-23 01:26:46,536 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-12-23 01:26:46,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-23 01:26:46,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:26:46,537 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:26:46,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 01:26:46,741 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:26:46,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:26:46,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1463923901, now seen corresponding path program 9 times [2020-12-23 01:26:46,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:26:46,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552728606] [2020-12-23 01:26:46,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:26:46,771 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:26:46,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398347137] [2020-12-23 01:26:46,772 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:26:46,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-12-23 01:26:46,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:26:46,975 WARN L261 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 96 conjunts are in the unsatisfiable core [2020-12-23 01:26:46,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:26:47,004 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-12-23 01:26:47,006 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,019 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:47,020 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,021 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-12-23 01:26:47,050 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 01:26:47,051 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,067 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:47,068 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,068 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2020-12-23 01:26:47,123 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:47,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,132 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2020-12-23 01:26:47,135 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,163 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:47,164 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,165 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:48 [2020-12-23 01:26:47,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,272 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:47,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,280 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 41 [2020-12-23 01:26:47,282 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,320 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:47,322 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,322 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:64 [2020-12-23 01:26:47,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,483 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 58 [2020-12-23 01:26:47,486 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,533 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:47,534 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,535 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:89 [2020-12-23 01:26:47,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,792 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:47,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:47,805 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 69 [2020-12-23 01:26:47,807 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,871 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:47,873 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,873 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:101, output treesize:100 [2020-12-23 01:26:48,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,296 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 76 [2020-12-23 01:26:48,298 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:48,412 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-23 01:26:48,412 INFO L625 ElimStorePlain]: treesize reduction 4, result has 96.2 percent of original size [2020-12-23 01:26:48,414 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:48,414 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:108, output treesize:100 [2020-12-23 01:26:48,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,660 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,703 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:48,704 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 109 treesize of output 120 [2020-12-23 01:26:48,708 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:48,846 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-12-23 01:26:48,847 INFO L625 ElimStorePlain]: treesize reduction 45, result has 72.2 percent of original size [2020-12-23 01:26:48,848 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:48,848 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:121, output treesize:117 [2020-12-23 01:26:48,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:48,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,022 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:50,630 WARN L197 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 169 DAG size of output: 132 [2020-12-23 01:26:50,632 INFO L348 Elim1Store]: treesize reduction 185, result has 73.7 percent of original size [2020-12-23 01:26:50,632 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 141 treesize of output 566 [2020-12-23 01:26:50,642 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:50,996 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 59 [2020-12-23 01:26:50,997 INFO L625 ElimStorePlain]: treesize reduction 556, result has 17.0 percent of original size [2020-12-23 01:26:50,999 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:50,999 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:153, output treesize:114 [2020-12-23 01:26:51,339 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:26:51,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,642 INFO L244 Elim1Store]: Index analysis took 291 ms [2020-12-23 01:26:51,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,689 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:51,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,699 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:51,701 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:52,967 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 215 [2020-12-23 01:26:52,969 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:52,970 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 14 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 49 case distinctions, treesize of input 133 treesize of output 904 [2020-12-23 01:26:52,988 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:53,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,037 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:53,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,046 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:53,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,074 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:53,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:53,090 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:53,091 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:53,155 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:53,155 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 17 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 124 treesize of output 170 [2020-12-23 01:26:53,160 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:54,062 WARN L197 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 73 [2020-12-23 01:26:54,064 INFO L625 ElimStorePlain]: treesize reduction 1172, result has 20.3 percent of original size [2020-12-23 01:26:54,067 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 01:26:54,067 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:287, output treesize:298 [2020-12-23 01:26:54,427 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 01:26:54,888 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-12-23 01:26:55,286 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-23 01:26:55,293 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 13, 2, 1] term [2020-12-23 01:26:55,294 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:26:55,297 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:26:55,303 INFO L443 ElimStorePlain]: Different costs {98=[|v_#memory_int_61|], 162=[v_prenex_6]} [2020-12-23 01:26:55,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,330 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:55,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,375 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:55,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,378 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:55,379 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:55,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:55,385 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:55,505 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-12-23 01:26:55,506 INFO L348 Elim1Store]: treesize reduction 8, result has 87.1 percent of original size [2020-12-23 01:26:55,507 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 43 case distinctions, treesize of input 151 treesize of output 187 [2020-12-23 01:26:55,513 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:56,720 WARN L197 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 114 DAG size of output: 97 [2020-12-23 01:26:56,721 INFO L625 ElimStorePlain]: treesize reduction 134, result has 78.1 percent of original size [2020-12-23 01:26:56,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,764 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:56,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:56,790 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:57,007 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:57,011 INFO L244 Elim1Store]: Index analysis took 278 ms [2020-12-23 01:26:57,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,022 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:57,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,028 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:57,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,043 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:57,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,046 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:57,111 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:57,112 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 26 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 33 case distinctions, treesize of input 155 treesize of output 196 [2020-12-23 01:26:57,119 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:57,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,259 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:57,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,275 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:57,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,288 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:57,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:57,293 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:26:58,718 WARN L197 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 226 [2020-12-23 01:26:58,719 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:58,720 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 27 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 62 case distinctions, treesize of input 164 treesize of output 895 [2020-12-23 01:26:58,747 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:59,868 WARN L197 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 243 DAG size of output: 97 [2020-12-23 01:26:59,869 INFO L625 ElimStorePlain]: treesize reduction 1412, result has 24.9 percent of original size [2020-12-23 01:26:59,875 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2020-12-23 01:26:59,876 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:517, output treesize:468 [2020-12-23 01:27:00,278 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-23 01:27:00,289 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:27:00,292 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:27:00,301 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:27:00,859 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-12-23 01:27:00,874 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 01:27:02,146 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2020-12-23 01:27:02,815 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2020-12-23 01:27:03,447 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2020-12-23 01:27:03,750 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:27:03,753 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 01:27:03,971 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:27:03,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552728606] [2020-12-23 01:27:03,971 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:27:03,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398347137] [2020-12-23 01:27:03,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:27:03,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-12-23 01:27:03,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769725712] [2020-12-23 01:27:03,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-12-23 01:27:03,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:27:03,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-12-23 01:27:03,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1136, Unknown=0, NotChecked=0, Total=1260 [2020-12-23 01:27:03,973 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 36 states. [2020-12-23 01:27:09,661 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-12-23 01:27:13,989 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2020-12-23 01:27:20,572 WARN L197 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 64 [2020-12-23 01:27:25,105 WARN L197 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 62 [2020-12-23 01:27:27,773 WARN L197 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 89 [2020-12-23 01:27:28,575 WARN L197 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 103 [2020-12-23 01:27:29,593 WARN L197 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 103 [2020-12-23 01:27:31,020 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 227 DAG size of output: 133 [2020-12-23 01:27:31,898 WARN L197 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 108 [2020-12-23 01:27:32,244 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-12-23 01:27:35,495 WARN L197 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 115 [2020-12-23 01:27:35,797 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-12-23 01:27:36,288 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 102 [2020-12-23 01:27:37,104 WARN L197 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 103 [2020-12-23 01:27:38,051 WARN L197 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 104 [2020-12-23 01:27:39,083 WARN L197 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 105 [2020-12-23 01:27:40,679 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 229 DAG size of output: 135 [2020-12-23 01:27:41,459 WARN L197 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 95 [2020-12-23 01:27:41,754 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-12-23 01:27:41,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:27:41,767 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2020-12-23 01:27:41,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-12-23 01:27:41,768 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 58 [2020-12-23 01:27:41,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:27:41,769 INFO L225 Difference]: With dead ends: 119 [2020-12-23 01:27:41,770 INFO L226 Difference]: Without dead ends: 117 [2020-12-23 01:27:41,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=423, Invalid=2653, Unknown=4, NotChecked=0, Total=3080 [2020-12-23 01:27:41,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-12-23 01:27:41,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 84. [2020-12-23 01:27:41,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-23 01:27:41,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2020-12-23 01:27:41,795 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 58 [2020-12-23 01:27:41,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:27:41,795 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2020-12-23 01:27:41,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-12-23 01:27:41,795 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2020-12-23 01:27:41,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-23 01:27:41,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:27:41,796 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:27:42,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-23 01:27:42,008 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:27:42,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:27:42,009 INFO L82 PathProgramCache]: Analyzing trace with hash -929245043, now seen corresponding path program 10 times [2020-12-23 01:27:42,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:27:42,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61667068] [2020-12-23 01:27:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:27:42,030 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:27:42,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156363364] [2020-12-23 01:27:42,032 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:27:42,097 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 01:27:42,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:27:42,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 01:27:42,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:27:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 35 proven. 51 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-23 01:27:42,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61667068] [2020-12-23 01:27:42,578 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:27:42,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156363364] [2020-12-23 01:27:42,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:27:42,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-12-23 01:27:42,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403399173] [2020-12-23 01:27:42,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-23 01:27:42,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:27:42,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-23 01:27:42,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-12-23 01:27:42,580 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand 15 states. [2020-12-23 01:27:43,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:27:43,744 INFO L93 Difference]: Finished difference Result 163 states and 169 transitions. [2020-12-23 01:27:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-23 01:27:43,747 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 61 [2020-12-23 01:27:43,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:27:43,748 INFO L225 Difference]: With dead ends: 163 [2020-12-23 01:27:43,749 INFO L226 Difference]: Without dead ends: 142 [2020-12-23 01:27:43,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-12-23 01:27:43,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-12-23 01:27:43,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 87. [2020-12-23 01:27:43,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-12-23 01:27:43,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-12-23 01:27:43,774 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 61 [2020-12-23 01:27:43,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:27:43,774 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-12-23 01:27:43,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-23 01:27:43,775 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-12-23 01:27:43,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-23 01:27:43,775 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:27:43,776 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:27:43,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:27:43,992 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:27:43,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:27:43,993 INFO L82 PathProgramCache]: Analyzing trace with hash -895524173, now seen corresponding path program 11 times [2020-12-23 01:27:43,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:27:43,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319230736] [2020-12-23 01:27:43,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:27:44,022 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:27:44,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1994936751] [2020-12-23 01:27:44,023 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:27:44,289 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-12-23 01:27:44,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:27:44,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 01:27:44,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:27:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 59 proven. 26 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-23 01:27:44,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319230736] [2020-12-23 01:27:44,732 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:27:44,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994936751] [2020-12-23 01:27:44,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:27:44,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-12-23 01:27:44,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551267694] [2020-12-23 01:27:44,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-23 01:27:44,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:27:44,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-23 01:27:44,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-12-23 01:27:44,734 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 15 states. [2020-12-23 01:27:45,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:27:45,558 INFO L93 Difference]: Finished difference Result 150 states and 155 transitions. [2020-12-23 01:27:45,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 01:27:45,560 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2020-12-23 01:27:45,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:27:45,561 INFO L225 Difference]: With dead ends: 150 [2020-12-23 01:27:45,561 INFO L226 Difference]: Without dead ends: 83 [2020-12-23 01:27:45,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-12-23 01:27:45,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-12-23 01:27:45,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 65. [2020-12-23 01:27:45,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-12-23 01:27:45,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2020-12-23 01:27:45,577 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 62 [2020-12-23 01:27:45,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:27:45,577 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2020-12-23 01:27:45,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-23 01:27:45,578 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2020-12-23 01:27:45,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 01:27:45,578 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:27:45,578 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:27:45,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-23 01:27:45,793 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:27:45,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:27:45,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1754407942, now seen corresponding path program 12 times [2020-12-23 01:27:45,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:27:45,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167185815] [2020-12-23 01:27:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:27:45,814 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:27:45,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143125565] [2020-12-23 01:27:45,815 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:27:46,185 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2020-12-23 01:27:46,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:27:46,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 87 conjunts are in the unsatisfiable core [2020-12-23 01:27:46,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:27:46,215 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-12-23 01:27:46,219 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:46,235 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:46,236 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:27:46,237 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-12-23 01:27:46,270 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 01:27:46,271 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:46,293 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:46,294 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:27:46,295 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2020-12-23 01:27:46,379 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:46,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,385 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2020-12-23 01:27:46,388 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:46,419 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:46,421 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:27:46,421 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:37 [2020-12-23 01:27:46,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,548 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:46,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,556 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2020-12-23 01:27:46,560 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:46,601 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:46,603 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:27:46,604 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:54 [2020-12-23 01:27:46,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,777 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2020-12-23 01:27:46,779 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:46,821 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:46,822 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:27:46,823 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:56 [2020-12-23 01:27:46,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,987 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:46,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:46,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,003 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 63 [2020-12-23 01:27:47,006 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:47,052 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:47,054 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:27:47,054 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:62 [2020-12-23 01:27:47,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,372 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 78 [2020-12-23 01:27:47,375 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:47,435 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:47,437 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:27:47,437 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:92, output treesize:88 [2020-12-23 01:27:47,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,891 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 82 [2020-12-23 01:27:47,895 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:48,060 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-23 01:27:48,062 INFO L625 ElimStorePlain]: treesize reduction 4, result has 95.3 percent of original size [2020-12-23 01:27:48,064 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:27:48,065 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:90, output treesize:82 [2020-12-23 01:27:48,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:48,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:50,378 WARN L197 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 169 DAG size of output: 132 [2020-12-23 01:27:50,379 INFO L348 Elim1Store]: treesize reduction 189, result has 73.1 percent of original size [2020-12-23 01:27:50,379 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 106 treesize of output 553 [2020-12-23 01:27:50,391 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:50,806 WARN L197 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 60 [2020-12-23 01:27:50,810 INFO L625 ElimStorePlain]: treesize reduction 553, result has 16.8 percent of original size [2020-12-23 01:27:50,812 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:27:50,812 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:112 [2020-12-23 01:27:51,216 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-12-23 01:27:51,238 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:27:51,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,300 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:51,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,427 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:51,532 INFO L244 Elim1Store]: Index analysis took 281 ms [2020-12-23 01:27:51,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,551 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:51,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,566 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:51,567 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:51,630 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:51,631 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 17 case distinctions, treesize of input 122 treesize of output 169 [2020-12-23 01:27:51,635 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:51,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,800 INFO L244 Elim1Store]: Index analysis took 153 ms [2020-12-23 01:27:51,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:51,855 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:51,857 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:53,649 WARN L197 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 215 [2020-12-23 01:27:53,651 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:53,651 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 18 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 131 treesize of output 902 [2020-12-23 01:27:53,676 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:55,348 WARN L197 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 213 DAG size of output: 71 [2020-12-23 01:27:55,349 INFO L625 ElimStorePlain]: treesize reduction 1270, result has 18.4 percent of original size [2020-12-23 01:27:55,352 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 01:27:55,353 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:283, output treesize:286 [2020-12-23 01:27:55,919 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-23 01:27:56,456 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-23 01:27:56,470 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:56,471 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:27:56,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:56,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:57,402 INFO L244 Elim1Store]: Index analysis took 908 ms [2020-12-23 01:27:57,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:57,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:57,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:57,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:57,481 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:57,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:57,496 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:57,503 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:59,804 WARN L197 SmtUtils]: Spent 2.30 s on a formula simplification that was a NOOP. DAG size: 278 [2020-12-23 01:27:59,805 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:59,806 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 23 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 64 case distinctions, treesize of input 164 treesize of output 1170 [2020-12-23 01:27:59,839 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:59,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,927 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:59,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:59,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,104 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:00,235 INFO L244 Elim1Store]: Index analysis took 378 ms [2020-12-23 01:28:00,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,254 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:00,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,279 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:00,281 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:00,282 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:00,353 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:00,354 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 30 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 28 case distinctions, treesize of input 155 treesize of output 207 [2020-12-23 01:28:00,358 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:00,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,445 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:00,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,475 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:00,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:00,491 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:00,492 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:00,493 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:00,565 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:00,566 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 160 treesize of output 198 [2020-12-23 01:28:00,571 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:03,106 WARN L197 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 306 DAG size of output: 91 [2020-12-23 01:28:03,108 INFO L625 ElimStorePlain]: treesize reduction 2049, result has 21.6 percent of original size [2020-12-23 01:28:03,111 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-12-23 01:28:03,111 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:526, output treesize:565 [2020-12-23 01:28:03,898 WARN L197 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-23 01:28:04,668 WARN L197 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-12-23 01:28:04,687 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:28:04,689 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:28:04,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,730 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:04,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:04,838 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,114 INFO L244 Elim1Store]: Index analysis took 397 ms [2020-12-23 01:28:05,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,123 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,125 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,126 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,128 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,129 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,219 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:05,220 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 23 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 33 case distinctions, treesize of input 196 treesize of output 227 [2020-12-23 01:28:05,226 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:05,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,311 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,584 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,807 INFO L244 Elim1Store]: Index analysis took 567 ms [2020-12-23 01:28:05,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,843 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,862 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,863 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,865 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:05,870 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:05,971 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:05,972 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 39 disjoint index pairs (out of 91 index pairs), introduced 13 new quantified variables, introduced 41 case distinctions, treesize of input 218 treesize of output 248 [2020-12-23 01:28:05,978 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:06,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:06,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:07,382 INFO L244 Elim1Store]: Index analysis took 1375 ms [2020-12-23 01:28:07,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:07,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:07,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:07,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:07,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:07,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:07,471 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:07,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:07,482 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:07,484 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:07,491 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:10,563 WARN L197 SmtUtils]: Spent 3.07 s on a formula simplification that was a NOOP. DAG size: 341 [2020-12-23 01:28:10,564 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:10,565 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 28 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 85 case distinctions, treesize of input 227 treesize of output 1441 [2020-12-23 01:28:10,603 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:10,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,763 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:10,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,777 INFO L244 Elim1Store]: Index analysis took 147 ms [2020-12-23 01:28:10,779 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:10,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,791 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:10,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,797 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:10,799 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:10,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:10,803 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:10,896 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:10,897 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 38 disjoint index pairs (out of 78 index pairs), introduced 12 new quantified variables, introduced 37 case distinctions, treesize of input 203 treesize of output 237 [2020-12-23 01:28:10,903 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:14,901 WARN L197 SmtUtils]: Spent 4.00 s on a formula simplification. DAG size of input: 385 DAG size of output: 112 [2020-12-23 01:28:14,902 INFO L625 ElimStorePlain]: treesize reduction 2698, result has 25.2 percent of original size [2020-12-23 01:28:14,913 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2020-12-23 01:28:14,914 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:908, output treesize:909 [2020-12-23 01:28:16,377 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 113 [2020-12-23 01:28:17,752 WARN L197 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-12-23 01:28:18,911 WARN L197 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-12-23 01:28:18,923 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 15, 2, 1] term [2020-12-23 01:28:18,923 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 01:28:18,926 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 01:28:18,940 INFO L443 ElimStorePlain]: Different costs {176=[v_prenex_13], 198=[v_prenex_11], 220=[v_prenex_9], 276=[|v_#memory_int_73|]} [2020-12-23 01:28:18,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:18,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,013 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:19,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,034 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:19,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,088 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:19,089 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:19,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,097 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:19,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,104 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:19,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:19,110 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:19,365 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-12-23 01:28:19,367 INFO L348 Elim1Store]: treesize reduction 8, result has 89.7 percent of original size [2020-12-23 01:28:19,368 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 22 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 69 case distinctions, treesize of input 233 treesize of output 258 [2020-12-23 01:28:19,376 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:24,398 WARN L197 SmtUtils]: Spent 5.02 s on a formula simplification. DAG size of input: 225 DAG size of output: 201 [2020-12-23 01:28:24,403 INFO L625 ElimStorePlain]: treesize reduction 200, result has 86.1 percent of original size [2020-12-23 01:28:24,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,493 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:24,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,527 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:24,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,550 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:24,551 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:24,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,561 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:24,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,582 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:24,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:24,586 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:24,792 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-12-23 01:28:24,793 INFO L348 Elim1Store]: treesize reduction 8, result has 89.7 percent of original size [2020-12-23 01:28:24,793 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 28 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 82 case distinctions, treesize of input 226 treesize of output 264 [2020-12-23 01:28:24,802 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:29,168 WARN L197 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 216 DAG size of output: 191 [2020-12-23 01:28:29,170 INFO L625 ElimStorePlain]: treesize reduction 190, result has 86.8 percent of original size [2020-12-23 01:28:29,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,263 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:29,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,286 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:29,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,342 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:29,343 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:29,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,362 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:29,364 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:29,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,375 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:29,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:29,618 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-12-23 01:28:29,619 INFO L348 Elim1Store]: treesize reduction 8, result has 89.7 percent of original size [2020-12-23 01:28:29,620 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 36 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 96 case distinctions, treesize of input 228 treesize of output 271 [2020-12-23 01:28:29,628 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:33,949 WARN L197 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 205 DAG size of output: 181 [2020-12-23 01:28:33,951 INFO L625 ElimStorePlain]: treesize reduction 220, result has 85.4 percent of original size [2020-12-23 01:28:33,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:33,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:33,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:33,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:34,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,163 INFO L244 Elim1Store]: Index analysis took 1190 ms [2020-12-23 01:28:35,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,219 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:35,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,229 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:35,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,268 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:35,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,291 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:35,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:35,305 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:37,823 WARN L197 SmtUtils]: Spent 2.51 s on a formula simplification that was a NOOP. DAG size: 279 [2020-12-23 01:28:37,825 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:37,826 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 17 select indices, 17 select index equivalence classes, 55 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 93 case distinctions, treesize of input 242 treesize of output 1094 [2020-12-23 01:28:37,864 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:37,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:37,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,061 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:38,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,103 INFO L244 Elim1Store]: Index analysis took 211 ms [2020-12-23 01:28:38,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,143 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:38,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,153 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:38,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,163 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:38,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,179 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:38,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,196 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:38,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:38,204 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:38,318 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-23 01:28:38,320 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:38,323 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 56 disjoint index pairs (out of 120 index pairs), introduced 15 new quantified variables, introduced 56 case distinctions, treesize of input 233 treesize of output 269 [2020-12-23 01:28:38,331 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:41,677 WARN L197 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 365 DAG size of output: 185 [2020-12-23 01:28:41,679 INFO L625 ElimStorePlain]: treesize reduction 1751, result has 42.7 percent of original size [2020-12-23 01:28:41,688 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: 5 dim-0 vars, and 5 xjuncts. [2020-12-23 01:28:41,688 INFO L244 ElimStorePlain]: Needed 6 recursive calls to eliminate 8 variables, input treesize:1243, output treesize:1306 [2020-12-23 01:28:42,859 WARN L197 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-12-23 01:28:42,878 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-23 01:28:42,883 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:28:42,885 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 01:28:46,295 WARN L197 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-12-23 01:28:46,312 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-23 01:28:47,979 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-12-23 01:28:51,357 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-12-23 01:28:51,786 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:28:51,790 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 01:28:52,139 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 10 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:28:52,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167185815] [2020-12-23 01:28:52,140 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:28:52,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143125565] [2020-12-23 01:28:52,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:28:52,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-12-23 01:28:52,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868706850] [2020-12-23 01:28:52,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-12-23 01:28:52,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:28:52,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-12-23 01:28:52,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1291, Unknown=2, NotChecked=0, Total=1406 [2020-12-23 01:28:52,142 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand 38 states. [2020-12-23 01:28:54,433 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-12-23 01:28:58,994 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-12-23 01:29:03,396 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2020-12-23 01:29:09,964 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2020-12-23 01:29:14,470 WARN L197 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2020-12-23 01:29:21,225 WARN L197 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67