/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/eqn4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 01:17:42,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 01:17:42,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 01:17:42,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 01:17:42,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 01:17:42,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 01:17:42,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 01:17:42,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 01:17:42,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 01:17:42,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 01:17:42,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 01:17:42,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 01:17:42,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 01:17:42,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 01:17:42,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 01:17:42,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 01:17:42,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 01:17:42,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 01:17:42,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 01:17:42,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 01:17:42,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 01:17:42,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 01:17:42,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 01:17:42,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 01:17:42,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 01:17:42,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 01:17:42,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 01:17:42,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 01:17:42,997 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 01:17:43,027 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 01:17:43,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 01:17:43,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 01:17:43,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 01:17:43,030 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 01:17:43,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 01:17:43,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 01:17:43,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 01:17:43,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 01:17:43,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 01:17:43,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 01:17:43,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 01:17:43,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 01:17:43,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 01:17:43,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 01:17:43,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 01:17:43,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 01:17:43,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 01:17:43,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 01:17:43,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 01:17:43,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 01:17:43,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 01:17:43,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 01:17:43,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 01:17:43,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 01:17:43,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 01:17:43,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 01:17:43,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 01:17:43,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 01:17:43,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 01:17:43,559 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 01:17:43,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/eqn4.c [2020-12-23 01:17:43,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/bbb39bd12/fd382e3499d743b6a0fa100a4fc7a935/FLAGa90579957 [2020-12-23 01:17:44,306 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 01:17:44,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn4.c [2020-12-23 01:17:44,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/bbb39bd12/fd382e3499d743b6a0fa100a4fc7a935/FLAGa90579957 [2020-12-23 01:17:44,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/bbb39bd12/fd382e3499d743b6a0fa100a4fc7a935 [2020-12-23 01:17:44,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 01:17:44,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 01:17:44,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 01:17:44,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 01:17:44,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 01:17:44,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:17:44" (1/1) ... [2020-12-23 01:17:44,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7440b7b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44, skipping insertion in model container [2020-12-23 01:17:44,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:17:44" (1/1) ... [2020-12-23 01:17:44,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 01:17:44,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 01:17:44,828 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/eqn4.c[587,600] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],StructAccessExpression[IdentifierExpression[~a~0,],offset]]] 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: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~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,] [2020-12-23 01:17:44,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:17:44,869 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 01:17:44,885 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/eqn4.c[587,600] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],StructAccessExpression[IdentifierExpression[~a~0,],offset]]] 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: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~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,] [2020-12-23 01:17:44,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:17:44,915 INFO L208 MainTranslator]: Completed translation [2020-12-23 01:17:44,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44 WrapperNode [2020-12-23 01:17:44,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 01:17:44,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 01:17:44,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 01:17:44,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 01:17:44,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44" (1/1) ... [2020-12-23 01:17:44,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44" (1/1) ... [2020-12-23 01:17:44,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 01:17:44,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 01:17:44,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 01:17:44,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 01:17:44,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44" (1/1) ... [2020-12-23 01:17:44,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44" (1/1) ... [2020-12-23 01:17:44,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44" (1/1) ... [2020-12-23 01:17:44,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44" (1/1) ... [2020-12-23 01:17:44,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44" (1/1) ... [2020-12-23 01:17:45,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44" (1/1) ... [2020-12-23 01:17:45,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44" (1/1) ... [2020-12-23 01:17:45,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 01:17:45,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 01:17:45,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 01:17:45,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 01:17:45,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44" (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 01:17:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 01:17:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 01:17:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 01:17:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 01:17:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 01:17:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 01:17:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 01:17:45,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 01:17:45,591 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-23 01:17:45,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:17:45 BoogieIcfgContainer [2020-12-23 01:17:45,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 01:17:45,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 01:17:45,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 01:17:45,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 01:17:45,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:17:44" (1/3) ... [2020-12-23 01:17:45,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401d2321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:17:45, skipping insertion in model container [2020-12-23 01:17:45,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:17:44" (2/3) ... [2020-12-23 01:17:45,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401d2321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:17:45, skipping insertion in model container [2020-12-23 01:17:45,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:17:45" (3/3) ... [2020-12-23 01:17:45,606 INFO L111 eAbstractionObserver]: Analyzing ICFG eqn4.c [2020-12-23 01:17:45,615 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 01:17:45,622 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 01:17:45,646 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 01:17:45,680 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 01:17:45,680 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 01:17:45,681 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 01:17:45,681 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 01:17:45,681 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 01:17:45,681 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 01:17:45,681 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 01:17:45,682 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 01:17:45,699 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-12-23 01:17:45,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 01:17:45,707 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:17:45,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:17:45,708 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:17:45,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:17:45,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2020-12-23 01:17:45,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:17:45,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544579272] [2020-12-23 01:17:45,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:17:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:17:45,934 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 01:17:45,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544579272] [2020-12-23 01:17:45,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:17:45,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 01:17:45,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359798163] [2020-12-23 01:17:45,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 01:17:45,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:17:45,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 01:17:45,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 01:17:45,969 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-12-23 01:17:45,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:17:45,994 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2020-12-23 01:17:45,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 01:17:45,996 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-23 01:17:45,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:17:46,009 INFO L225 Difference]: With dead ends: 38 [2020-12-23 01:17:46,009 INFO L226 Difference]: Without dead ends: 17 [2020-12-23 01:17:46,013 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 01:17:46,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-23 01:17:46,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-23 01:17:46,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-23 01:17:46,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-12-23 01:17:46,057 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2020-12-23 01:17:46,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:17:46,058 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-12-23 01:17:46,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 01:17:46,058 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-12-23 01:17:46,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 01:17:46,059 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:17:46,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:17:46,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 01:17:46,060 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:17:46,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:17:46,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2020-12-23 01:17:46,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:17:46,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88175344] [2020-12-23 01:17:46,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:17:46,094 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:17:46,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1502967157] [2020-12-23 01:17:46,095 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 01:17:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:17:46,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-23 01:17:46,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:17:46,411 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:17:46,412 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 1 case distinctions, treesize of input 27 treesize of output 39 [2020-12-23 01:17:46,418 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:17:46,479 INFO L625 ElimStorePlain]: treesize reduction 16, result has 64.4 percent of original size [2020-12-23 01:17:46,491 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:17:46,491 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:14 [2020-12-23 01:17:46,675 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 01:17:46,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88175344] [2020-12-23 01:17:46,676 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:17:46,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502967157] [2020-12-23 01:17:46,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:17:46,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 01:17:46,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993978371] [2020-12-23 01:17:46,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 01:17:46,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:17:46,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 01:17:46,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-23 01:17:46,692 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 8 states. [2020-12-23 01:17:46,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:17:46,994 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2020-12-23 01:17:46,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:17:46,995 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-12-23 01:17:46,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:17:46,996 INFO L225 Difference]: With dead ends: 39 [2020-12-23 01:17:46,996 INFO L226 Difference]: Without dead ends: 37 [2020-12-23 01:17:46,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-12-23 01:17:46,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-23 01:17:47,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 23. [2020-12-23 01:17:47,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-23 01:17:47,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-12-23 01:17:47,005 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2020-12-23 01:17:47,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:17:47,005 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-12-23 01:17:47,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 01:17:47,006 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-12-23 01:17:47,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 01:17:47,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:17:47,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:17:47,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-23 01:17:47,223 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:17:47,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:17:47,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1755224028, now seen corresponding path program 1 times [2020-12-23 01:17:47,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:17:47,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718708582] [2020-12-23 01:17:47,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:17:47,277 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:17:47,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333083605] [2020-12-23 01:17:47,278 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 01:17:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:17:47,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 01:17:47,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:17:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:17:47,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718708582] [2020-12-23 01:17:47,389 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:17:47,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333083605] [2020-12-23 01:17:47,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:17:47,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 01:17:47,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111685158] [2020-12-23 01:17:47,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 01:17:47,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:17:47,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 01:17:47,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:17:47,392 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 5 states. [2020-12-23 01:17:47,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:17:47,463 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2020-12-23 01:17:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 01:17:47,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-23 01:17:47,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:17:47,464 INFO L225 Difference]: With dead ends: 49 [2020-12-23 01:17:47,465 INFO L226 Difference]: Without dead ends: 40 [2020-12-23 01:17:47,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 01:17:47,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-23 01:17:47,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2020-12-23 01:17:47,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-23 01:17:47,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-12-23 01:17:47,471 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2020-12-23 01:17:47,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:17:47,471 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-12-23 01:17:47,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 01:17:47,472 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-12-23 01:17:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 01:17:47,472 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:17:47,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:17:47,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:17:47,686 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:17:47,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:17:47,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1842440164, now seen corresponding path program 1 times [2020-12-23 01:17:47,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:17:47,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092379696] [2020-12-23 01:17:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:17:47,726 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:17:47,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [646756003] [2020-12-23 01:17:47,727 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 01:17:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:17:47,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 01:17:47,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:17:47,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:17:47,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092379696] [2020-12-23 01:17:47,823 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:17:47,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646756003] [2020-12-23 01:17:47,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:17:47,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 01:17:47,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703305521] [2020-12-23 01:17:47,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 01:17:47,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:17:47,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 01:17:47,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:17:47,826 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 5 states. [2020-12-23 01:17:47,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:17:47,907 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2020-12-23 01:17:47,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 01:17:47,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-23 01:17:47,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:17:47,909 INFO L225 Difference]: With dead ends: 44 [2020-12-23 01:17:47,909 INFO L226 Difference]: Without dead ends: 37 [2020-12-23 01:17:47,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 01:17:47,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-23 01:17:47,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 24. [2020-12-23 01:17:47,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-23 01:17:47,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2020-12-23 01:17:47,915 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 14 [2020-12-23 01:17:47,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:17:47,915 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2020-12-23 01:17:47,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 01:17:47,916 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2020-12-23 01:17:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 01:17:47,916 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:17:47,917 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:17:48,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:17:48,128 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:17:48,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:17:48,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1667884396, now seen corresponding path program 1 times [2020-12-23 01:17:48,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:17:48,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620667336] [2020-12-23 01:17:48,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:17:48,150 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:17:48,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959040229] [2020-12-23 01:17:48,150 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 01:17:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:17:48,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 01:17:48,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:17:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:17:48,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620667336] [2020-12-23 01:17:48,251 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:17:48,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959040229] [2020-12-23 01:17:48,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:17:48,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 01:17:48,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168305819] [2020-12-23 01:17:48,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 01:17:48,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:17:48,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 01:17:48,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 01:17:48,254 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 6 states. [2020-12-23 01:17:48,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:17:48,321 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2020-12-23 01:17:48,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 01:17:48,321 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-23 01:17:48,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:17:48,322 INFO L225 Difference]: With dead ends: 41 [2020-12-23 01:17:48,322 INFO L226 Difference]: Without dead ends: 27 [2020-12-23 01:17:48,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:17:48,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-23 01:17:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2020-12-23 01:17:48,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-23 01:17:48,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2020-12-23 01:17:48,327 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2020-12-23 01:17:48,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:17:48,327 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2020-12-23 01:17:48,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 01:17:48,327 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-12-23 01:17:48,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 01:17:48,328 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:17:48,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:17:48,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:17:48,544 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:17:48,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:17:48,545 INFO L82 PathProgramCache]: Analyzing trace with hash 586911962, now seen corresponding path program 1 times [2020-12-23 01:17:48,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:17:48,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619337021] [2020-12-23 01:17:48,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:17:48,580 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:17:48,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [461247174] [2020-12-23 01:17:48,581 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 01:17:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:17:48,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-23 01:17:48,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:17:48,687 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 01:17:48,690 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:17:48,696 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:17:48,703 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-23 01:17:48,704 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:17:48,711 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:17:48,712 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:17:48,712 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:19 [2020-12-23 01:17:48,796 INFO L348 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2020-12-23 01:17:48,796 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 72 [2020-12-23 01:17:48,809 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:17:48,838 INFO L625 ElimStorePlain]: treesize reduction 25, result has 65.3 percent of original size [2020-12-23 01:17:48,841 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:17:48,847 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 01:17:48,849 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:47 [2020-12-23 01:17:48,852 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:17:48,896 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:17:48,928 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:17:48,963 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:17:49,054 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:17:49,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:17:49,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:17:49,293 INFO L348 Elim1Store]: treesize reduction 17, result has 83.7 percent of original size [2020-12-23 01:17:49,293 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 72 treesize of output 172 [2020-12-23 01:17:49,305 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:17:49,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:17:49,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:17:49,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:17:49,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:17:49,352 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:17:49,352 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 95 [2020-12-23 01:17:49,357 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:17:49,504 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2020-12-23 01:17:49,505 INFO L625 ElimStorePlain]: treesize reduction 204, result has 40.2 percent of original size [2020-12-23 01:17:49,526 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2020-12-23 01:17:49,527 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:145, output treesize:137 [2020-12-23 01:17:50,880 WARN L197 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 63 [2020-12-23 01:17:54,544 WARN L197 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 66 [2020-12-23 01:17:54,565 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-23 01:17:54,566 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:17:54,583 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:17:54,586 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:17:54,587 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:17:54,593 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:17:54,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:17:54,599 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:17:54,617 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:17:54,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:17:54,621 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:17:54,625 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:17:54,626 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:17:54,629 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:17:54,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:17:54,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619337021] [2020-12-23 01:17:54,662 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:17:54,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461247174] [2020-12-23 01:17:54,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:17:54,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:17:54,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277889055] [2020-12-23 01:17:54,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:17:54,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:17:54,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:17:54,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=55, Unknown=1, NotChecked=0, Total=72 [2020-12-23 01:17:54,665 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 9 states. [2020-12-23 01:18:09,727 WARN L197 SmtUtils]: Spent 4.70 s on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-12-23 01:18:12,265 WARN L197 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2020-12-23 01:18:13,768 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2020-12-23 01:18:20,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:18:20,002 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2020-12-23 01:18:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:18:20,003 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-12-23 01:18:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:18:20,004 INFO L225 Difference]: With dead ends: 39 [2020-12-23 01:18:20,004 INFO L226 Difference]: Without dead ends: 37 [2020-12-23 01:18:20,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=62, Invalid=174, Unknown=4, NotChecked=0, Total=240 [2020-12-23 01:18:20,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-23 01:18:20,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 28. [2020-12-23 01:18:20,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-23 01:18:20,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-12-23 01:18:20,012 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-12-23 01:18:20,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:18:20,012 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-12-23 01:18:20,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:18:20,013 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-12-23 01:18:20,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 01:18:20,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:18:20,013 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:18:20,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-23 01:18:20,215 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:18:20,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:18:20,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1174519208, now seen corresponding path program 2 times [2020-12-23 01:18:20,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:18:20,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849593869] [2020-12-23 01:18:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:18:20,263 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:18:20,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418105845] [2020-12-23 01:18:20,264 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 01:18:20,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:18:20,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:18:20,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 01:18:20,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:18:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:18:20,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849593869] [2020-12-23 01:18:20,433 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:18:20,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418105845] [2020-12-23 01:18:20,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:18:20,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 01:18:20,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770252627] [2020-12-23 01:18:20,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 01:18:20,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:18:20,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 01:18:20,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-23 01:18:20,436 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-12-23 01:18:20,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:18:20,640 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2020-12-23 01:18:20,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:18:20,641 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-12-23 01:18:20,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:18:20,641 INFO L225 Difference]: With dead ends: 61 [2020-12-23 01:18:20,642 INFO L226 Difference]: Without dead ends: 54 [2020-12-23 01:18:20,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 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 01:18:20,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-23 01:18:20,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 30. [2020-12-23 01:18:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-23 01:18:20,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-12-23 01:18:20,650 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 18 [2020-12-23 01:18:20,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:18:20,651 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-12-23 01:18:20,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 01:18:20,651 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-12-23 01:18:20,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-23 01:18:20,652 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:18:20,652 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:18:20,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:18:20,866 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:18:20,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:18:20,867 INFO L82 PathProgramCache]: Analyzing trace with hash 798963152, now seen corresponding path program 1 times [2020-12-23 01:18:20,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:18:20,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652131684] [2020-12-23 01:18:20,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:18:20,895 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:18:20,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1079942600] [2020-12-23 01:18:20,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:18:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:18:20,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-23 01:18:20,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:18:21,022 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 01:18:21,024 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:21,035 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:18:21,045 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-23 01:18:21,047 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:21,057 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:18:21,059 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:18:21,060 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:22 [2020-12-23 01:18:21,145 INFO L348 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2020-12-23 01:18:21,145 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 72 [2020-12-23 01:18:21,152 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:21,194 INFO L625 ElimStorePlain]: treesize reduction 28, result has 61.1 percent of original size [2020-12-23 01:18:21,200 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 01:18:21,200 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:44 [2020-12-23 01:18:21,378 INFO L348 Elim1Store]: treesize reduction 39, result has 45.8 percent of original size [2020-12-23 01:18:21,379 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 85 [2020-12-23 01:18:21,385 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:21,438 INFO L625 ElimStorePlain]: treesize reduction 38, result has 61.6 percent of original size [2020-12-23 01:18:21,444 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 01:18:21,444 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:67, output treesize:61 [2020-12-23 01:18:21,729 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:18:21,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652131684] [2020-12-23 01:18:21,730 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:18:21,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079942600] [2020-12-23 01:18:21,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:18:21,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-12-23 01:18:21,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408209367] [2020-12-23 01:18:21,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 01:18:21,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:18:21,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 01:18:21,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:18:21,733 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 10 states. [2020-12-23 01:18:22,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:18:22,788 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2020-12-23 01:18:22,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 01:18:22,789 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-12-23 01:18:22,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:18:22,790 INFO L225 Difference]: With dead ends: 42 [2020-12-23 01:18:22,790 INFO L226 Difference]: Without dead ends: 40 [2020-12-23 01:18:22,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-12-23 01:18:22,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-23 01:18:22,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 30. [2020-12-23 01:18:22,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-23 01:18:22,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-12-23 01:18:22,800 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 20 [2020-12-23 01:18:22,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:18:22,801 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-12-23 01:18:22,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 01:18:22,801 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-12-23 01:18:22,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-23 01:18:22,802 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:18:22,802 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:18:23,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:18:23,017 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:18:23,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:18:23,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1197174726, now seen corresponding path program 2 times [2020-12-23 01:18:23,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:18:23,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725730898] [2020-12-23 01:18:23,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:18:23,044 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:18:23,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1729541884] [2020-12-23 01:18:23,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:18:23,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:18:23,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:18:23,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 01:18:23,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:18:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 01:18:23,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725730898] [2020-12-23 01:18:23,199 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:18:23,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729541884] [2020-12-23 01:18:23,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:18:23,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-12-23 01:18:23,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516946553] [2020-12-23 01:18:23,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 01:18:23,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:18:23,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 01:18:23,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-23 01:18:23,213 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 8 states. [2020-12-23 01:18:23,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:18:23,409 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2020-12-23 01:18:23,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:18:23,410 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-12-23 01:18:23,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:18:23,411 INFO L225 Difference]: With dead ends: 62 [2020-12-23 01:18:23,411 INFO L226 Difference]: Without dead ends: 33 [2020-12-23 01:18:23,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:18:23,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-23 01:18:23,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2020-12-23 01:18:23,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-23 01:18:23,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-12-23 01:18:23,419 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 24 [2020-12-23 01:18:23,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:18:23,419 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-12-23 01:18:23,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 01:18:23,420 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-12-23 01:18:23,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-23 01:18:23,421 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:18:23,421 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:18:23,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-23 01:18:23,635 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:18:23,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:18:23,636 INFO L82 PathProgramCache]: Analyzing trace with hash -55017726, now seen corresponding path program 3 times [2020-12-23 01:18:23,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:18:23,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884512721] [2020-12-23 01:18:23,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:18:23,669 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:18:23,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255537054] [2020-12-23 01:18:23,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:18:23,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-23 01:18:23,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:18:23,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 52 conjunts are in the unsatisfiable core [2020-12-23 01:18:23,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:18:23,807 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 01:18:23,810 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:23,825 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:18:23,832 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-23 01:18:23,833 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:23,880 INFO L625 ElimStorePlain]: treesize reduction 4, result has 85.7 percent of original size [2020-12-23 01:18:23,881 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:18:23,882 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:24 [2020-12-23 01:18:23,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:23,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:23,920 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:23,939 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-12-23 01:18:23,940 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 57 [2020-12-23 01:18:23,946 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:23,987 INFO L625 ElimStorePlain]: treesize reduction 38, result has 51.9 percent of original size [2020-12-23 01:18:23,988 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:18:23,989 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:41 [2020-12-23 01:18:24,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:24,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:24,190 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-12-23 01:18:24,191 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:18:24,191 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 56 treesize of output 205 [2020-12-23 01:18:24,198 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:24,280 INFO L625 ElimStorePlain]: treesize reduction 96, result has 40.4 percent of original size [2020-12-23 01:18:24,282 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:18:24,282 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:65 [2020-12-23 01:18:24,329 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:18:24,494 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2020-12-23 01:18:24,499 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:18:24,743 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:18:24,758 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:24,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:24,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:24,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:24,764 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:24,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:24,772 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:24,780 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:24,792 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 67 treesize of output 67 [2020-12-23 01:18:24,794 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:24,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:24,814 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:24,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:24,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:24,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:24,820 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:24,824 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:25,003 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 01:18:25,004 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:18:25,005 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 19 case distinctions, treesize of input 81 treesize of output 314 [2020-12-23 01:18:25,012 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 01:18:25,013 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:18:25,014 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 01:18:25,014 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:18:25,015 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 01:18:25,015 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:18:25,017 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 01:18:25,017 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:18:25,018 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:18:25,018 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:18:25,019 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:18:25,019 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:18:25,020 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:18:25,020 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:18:25,044 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:25,325 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 55 [2020-12-23 01:18:25,326 INFO L625 ElimStorePlain]: treesize reduction 440, result has 27.9 percent of original size [2020-12-23 01:18:25,329 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 01:18:25,330 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:182, output treesize:170 [2020-12-23 01:18:25,454 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2020-12-23 01:18:25,455 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:18:25,601 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 8, 1] term [2020-12-23 01:18:25,602 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:18:25,616 INFO L443 ElimStorePlain]: Different costs {50=[v_prenex_8], 70=[|v_#memory_int_21|]} [2020-12-23 01:18:25,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:25,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:25,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:25,650 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:25,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:25,656 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:26,030 WARN L197 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-23 01:18:26,030 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:18:26,031 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 79 treesize of output 423 [2020-12-23 01:18:26,044 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2020-12-23 01:18:26,045 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:18:26,046 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-23 01:18:26,046 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:18:26,047 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-23 01:18:26,047 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:18:26,048 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 01:18:26,049 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:18:26,050 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 01:18:26,050 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:18:26,051 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 01:18:26,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:18:26,069 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 01:18:26,070 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:18:26,071 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:18:26,071 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:18:26,072 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:18:26,072 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:18:26,073 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:18:26,073 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:18:26,088 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:26,623 WARN L197 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 73 [2020-12-23 01:18:26,624 INFO L625 ElimStorePlain]: treesize reduction 514, result has 27.5 percent of original size [2020-12-23 01:18:26,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:26,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:26,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:26,661 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:26,668 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:18:26,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:18:27,332 WARN L197 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-12-23 01:18:27,334 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:18:27,335 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 92 treesize of output 640 [2020-12-23 01:18:27,356 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2020-12-23 01:18:27,356 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 01:18:27,370 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 2, 1] term [2020-12-23 01:18:27,371 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 01:18:27,372 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2020-12-23 01:18:27,373 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 01:18:27,374 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2020-12-23 01:18:27,374 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:18:27,375 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-23 01:18:27,375 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:18:27,376 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-23 01:18:27,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:18:27,377 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 1] term [2020-12-23 01:18:27,377 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:18:27,378 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 1] term [2020-12-23 01:18:27,378 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:18:27,379 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 1] term [2020-12-23 01:18:27,379 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 01:18:27,380 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2020-12-23 01:18:27,380 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 01:18:27,381 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:18:27,381 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 01:18:27,382 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:18:27,382 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:18:27,382 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:18:27,383 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:18:27,402 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:18:27,683 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 64 [2020-12-23 01:18:27,684 INFO L625 ElimStorePlain]: treesize reduction 414, result has 31.3 percent of original size [2020-12-23 01:18:27,688 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2020-12-23 01:18:27,688 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:195, output treesize:189 [2020-12-23 01:18:29,707 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:18:29,711 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:18:29,713 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:18:29,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:18:29,729 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:18:32,029 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-23 01:18:32,043 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 01:18:32,357 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-12-23 01:18:39,269 WARN L197 SmtUtils]: Spent 5.83 s on a formula simplification that was a NOOP. DAG size: 119 [2020-12-23 01:18:41,814 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-23 01:18:47,202 WARN L197 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2020-12-23 01:18:47,213 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-12-23 01:18:47,213 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:18:49,813 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-12-23 01:18:49,813 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:18:49,818 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:18:49,823 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:18:49,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:18:49,833 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:18:49,873 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:18:49,876 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:18:49,878 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:18:49,883 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:18:49,899 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-23 01:18:49,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:18:49,910 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:18:49,912 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:18:49,914 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:18:49,917 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:18:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:18:50,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884512721] [2020-12-23 01:18:50,017 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:18:50,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255537054] [2020-12-23 01:18:50,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:18:50,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-12-23 01:18:50,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216611808] [2020-12-23 01:18:50,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 01:18:50,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:18:50,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 01:18:50,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=313, Unknown=2, NotChecked=0, Total=380 [2020-12-23 01:18:50,019 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 20 states. [2020-12-23 01:18:54,556 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-12-23 01:18:57,249 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-12-23 01:18:57,474 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-12-23 01:19:16,566 WARN L197 SmtUtils]: Spent 13.72 s on a formula simplification. DAG size of input: 137 DAG size of output: 117 [2020-12-23 01:19:20,128 WARN L197 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 56 [2020-12-23 01:19:20,977 WARN L197 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 56 [2020-12-23 01:19:21,642 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 52 [2020-12-23 01:19:37,791 WARN L197 SmtUtils]: Spent 13.83 s on a formula simplification. DAG size of input: 139 DAG size of output: 119 [2020-12-23 01:19:41,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:19:41,628 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2020-12-23 01:19:41,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-23 01:19:41,633 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 28 [2020-12-23 01:19:41,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:19:41,635 INFO L225 Difference]: With dead ends: 64 [2020-12-23 01:19:41,635 INFO L226 Difference]: Without dead ends: 62 [2020-12-23 01:19:41,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 60.2s TimeCoverageRelationStatistics Valid=136, Invalid=615, Unknown=5, NotChecked=0, Total=756 [2020-12-23 01:19:41,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-12-23 01:19:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 42. [2020-12-23 01:19:41,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-23 01:19:41,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-12-23 01:19:41,650 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 28 [2020-12-23 01:19:41,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:19:41,651 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-12-23 01:19:41,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-23 01:19:41,651 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-12-23 01:19:41,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-23 01:19:41,652 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:19:41,652 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:19:41,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:19:41,854 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:19:41,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:19:41,855 INFO L82 PathProgramCache]: Analyzing trace with hash 711279424, now seen corresponding path program 4 times [2020-12-23 01:19:41,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:19:41,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933300520] [2020-12-23 01:19:41,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:19:41,887 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:19:41,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1461148715] [2020-12-23 01:19:41,887 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:19:41,979 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 01:19:41,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:19:41,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:19:41,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:19:42,102 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 01:19:42,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933300520] [2020-12-23 01:19:42,103 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:19:42,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461148715] [2020-12-23 01:19:42,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:19:42,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:19:42,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755907412] [2020-12-23 01:19:42,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:19:42,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:19:42,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:19:42,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:19:42,105 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 9 states. [2020-12-23 01:19:42,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:19:42,371 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2020-12-23 01:19:42,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 01:19:42,372 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-12-23 01:19:42,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:19:42,373 INFO L225 Difference]: With dead ends: 87 [2020-12-23 01:19:42,374 INFO L226 Difference]: Without dead ends: 72 [2020-12-23 01:19:42,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-12-23 01:19:42,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-12-23 01:19:42,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 42. [2020-12-23 01:19:42,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-23 01:19:42,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2020-12-23 01:19:42,387 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 30 [2020-12-23 01:19:42,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:19:42,387 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2020-12-23 01:19:42,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:19:42,387 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2020-12-23 01:19:42,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-23 01:19:42,388 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:19:42,388 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:19:42,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:19:42,590 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:19:42,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:19:42,591 INFO L82 PathProgramCache]: Analyzing trace with hash 481747840, now seen corresponding path program 5 times [2020-12-23 01:19:42,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:19:42,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160237685] [2020-12-23 01:19:42,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:19:42,609 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:19:42,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637899733] [2020-12-23 01:19:42,609 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:19:42,684 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-23 01:19:42,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:19:42,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:19:42,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:19:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 01:19:42,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160237685] [2020-12-23 01:19:42,822 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:19:42,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637899733] [2020-12-23 01:19:42,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:19:42,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:19:42,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783164133] [2020-12-23 01:19:42,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:19:42,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:19:42,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:19:42,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:19:42,824 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 9 states. [2020-12-23 01:19:43,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:19:43,116 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2020-12-23 01:19:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 01:19:43,117 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-12-23 01:19:43,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:19:43,118 INFO L225 Difference]: With dead ends: 78 [2020-12-23 01:19:43,118 INFO L226 Difference]: Without dead ends: 65 [2020-12-23 01:19:43,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:19:43,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-12-23 01:19:43,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 44. [2020-12-23 01:19:43,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-23 01:19:43,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-12-23 01:19:43,132 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 30 [2020-12-23 01:19:43,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:19:43,133 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-12-23 01:19:43,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:19:43,133 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2020-12-23 01:19:43,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 01:19:43,134 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:19:43,134 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:19:43,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-23 01:19:43,349 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:19:43,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:19:43,351 INFO L82 PathProgramCache]: Analyzing trace with hash -412561416, now seen corresponding path program 6 times [2020-12-23 01:19:43,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:19:43,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668303034] [2020-12-23 01:19:43,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:19:43,369 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:19:43,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211449924] [2020-12-23 01:19:43,370 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:19:43,475 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2020-12-23 01:19:43,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:19:43,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 01:19:43,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:19:43,640 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-23 01:19:43,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668303034] [2020-12-23 01:19:43,641 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:19:43,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211449924] [2020-12-23 01:19:43,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:19:43,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-12-23 01:19:43,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115020391] [2020-12-23 01:19:43,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 01:19:43,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:19:43,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 01:19:43,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:19:43,643 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 10 states. [2020-12-23 01:19:44,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:19:44,016 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2020-12-23 01:19:44,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 01:19:44,017 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-12-23 01:19:44,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:19:44,018 INFO L225 Difference]: With dead ends: 69 [2020-12-23 01:19:44,018 INFO L226 Difference]: Without dead ends: 43 [2020-12-23 01:19:44,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-12-23 01:19:44,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-23 01:19:44,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 33. [2020-12-23 01:19:44,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-23 01:19:44,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2020-12-23 01:19:44,030 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 32 [2020-12-23 01:19:44,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:19:44,031 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2020-12-23 01:19:44,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 01:19:44,031 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2020-12-23 01:19:44,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 01:19:44,032 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:19:44,032 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:19:44,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-23 01:19:44,247 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:19:44,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:19:44,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1146912830, now seen corresponding path program 7 times [2020-12-23 01:19:44,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:19:44,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543262861] [2020-12-23 01:19:44,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:19:44,267 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:19:44,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656403025] [2020-12-23 01:19:44,268 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:19:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:19:44,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 49 conjunts are in the unsatisfiable core [2020-12-23 01:19:44,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:19:44,398 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 01:19:44,402 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:44,423 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:19:44,431 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-23 01:19:44,433 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:44,466 INFO L625 ElimStorePlain]: treesize reduction 4, result has 85.7 percent of original size [2020-12-23 01:19:44,468 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:19:44,468 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:24 [2020-12-23 01:19:44,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,512 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:44,539 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-12-23 01:19:44,539 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 57 [2020-12-23 01:19:44,543 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:44,596 INFO L625 ElimStorePlain]: treesize reduction 26, result has 63.4 percent of original size [2020-12-23 01:19:44,597 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:19:44,598 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:45 [2020-12-23 01:19:44,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,692 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:44,706 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:19:44,707 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 71 [2020-12-23 01:19:44,710 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:44,773 INFO L625 ElimStorePlain]: treesize reduction 34, result has 67.0 percent of original size [2020-12-23 01:19:44,775 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:19:44,775 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:69 [2020-12-23 01:19:44,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:44,935 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:19:44,936 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 97 [2020-12-23 01:19:44,939 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:45,022 INFO L625 ElimStorePlain]: treesize reduction 41, result has 66.1 percent of original size [2020-12-23 01:19:45,024 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 01:19:45,025 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:84, output treesize:80 [2020-12-23 01:19:45,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,231 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:45,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,262 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:45,263 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:45,366 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-12-23 01:19:45,367 INFO L348 Elim1Store]: treesize reduction 24, result has 71.1 percent of original size [2020-12-23 01:19:45,368 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 106 treesize of output 163 [2020-12-23 01:19:45,373 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:45,505 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-12-23 01:19:45,507 INFO L625 ElimStorePlain]: treesize reduction 114, result has 53.1 percent of original size [2020-12-23 01:19:45,508 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 01:19:45,509 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:118, output treesize:129 [2020-12-23 01:19:45,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,738 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:45,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:45,781 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:45,782 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:45,783 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:45,993 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-23 01:19:45,994 INFO L348 Elim1Store]: treesize reduction 24, result has 84.2 percent of original size [2020-12-23 01:19:45,994 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 38 case distinctions, treesize of input 133 treesize of output 236 [2020-12-23 01:19:46,001 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:46,184 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 54 [2020-12-23 01:19:46,184 INFO L625 ElimStorePlain]: treesize reduction 209, result has 46.1 percent of original size [2020-12-23 01:19:46,186 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 01:19:46,186 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:145, output treesize:179 [2020-12-23 01:19:46,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,542 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:46,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,545 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:46,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,560 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:46,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:46,853 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 01:19:46,854 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:19:46,855 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 47 case distinctions, treesize of input 166 treesize of output 422 [2020-12-23 01:19:46,867 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 01:19:46,867 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:19:46,869 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 01:19:46,869 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:19:46,870 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 01:19:46,870 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:19:46,871 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 01:19:46,871 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:19:46,872 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:19:46,872 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:19:46,873 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:19:46,873 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:19:46,874 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:19:46,874 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:19:46,891 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:47,314 WARN L197 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 51 [2020-12-23 01:19:47,315 INFO L625 ElimStorePlain]: treesize reduction 895, result has 12.8 percent of original size [2020-12-23 01:19:47,326 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 01:19:47,326 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:175, output treesize:131 [2020-12-23 01:19:48,256 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:19:48,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:19:48,262 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:19:48,268 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:19:48,378 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:19:48,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543262861] [2020-12-23 01:19:48,379 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:19:48,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656403025] [2020-12-23 01:19:48,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:19:48,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-12-23 01:19:48,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818680411] [2020-12-23 01:19:48,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 01:19:48,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:19:48,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 01:19:48,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2020-12-23 01:19:48,381 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 19 states. [2020-12-23 01:19:49,079 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-23 01:19:50,168 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2020-12-23 01:19:50,625 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-12-23 01:19:50,930 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-12-23 01:19:51,360 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-12-23 01:19:51,895 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-12-23 01:19:52,357 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-12-23 01:19:54,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:19:54,565 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2020-12-23 01:19:54,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 01:19:54,567 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 32 [2020-12-23 01:19:54,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:19:54,569 INFO L225 Difference]: With dead ends: 47 [2020-12-23 01:19:54,570 INFO L226 Difference]: Without dead ends: 45 [2020-12-23 01:19:54,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=200, Invalid=1060, Unknown=0, NotChecked=0, Total=1260 [2020-12-23 01:19:54,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-23 01:19:54,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2020-12-23 01:19:54,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-23 01:19:54,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-12-23 01:19:54,592 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 32 [2020-12-23 01:19:54,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:19:54,593 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-12-23 01:19:54,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 01:19:54,593 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-12-23 01:19:54,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-23 01:19:54,594 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:19:54,594 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:19:54,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 01:19:54,795 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:19:54,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:19:54,796 INFO L82 PathProgramCache]: Analyzing trace with hash -831401164, now seen corresponding path program 8 times [2020-12-23 01:19:54,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:19:54,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632694090] [2020-12-23 01:19:54,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:19:54,813 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:19:54,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573789607] [2020-12-23 01:19:54,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:19:54,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:19:54,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:19:54,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 56 conjunts are in the unsatisfiable core [2020-12-23 01:19:54,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:19:54,952 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 01:19:54,955 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:54,973 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:19:54,984 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-23 01:19:54,986 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:55,004 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:19:55,006 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:19:55,006 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:25 [2020-12-23 01:19:55,116 INFO L348 Elim1Store]: treesize reduction 54, result has 46.0 percent of original size [2020-12-23 01:19:55,117 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 72 [2020-12-23 01:19:55,125 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:55,188 INFO L625 ElimStorePlain]: treesize reduction 28, result has 62.7 percent of original size [2020-12-23 01:19:55,189 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:19:55,189 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:47 [2020-12-23 01:19:55,430 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 32 [2020-12-23 01:19:55,431 INFO L348 Elim1Store]: treesize reduction 79, result has 52.4 percent of original size [2020-12-23 01:19:55,431 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 118 [2020-12-23 01:19:55,436 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:55,524 INFO L625 ElimStorePlain]: treesize reduction 58, result has 49.1 percent of original size [2020-12-23 01:19:55,525 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:19:55,526 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:66, output treesize:56 [2020-12-23 01:19:55,800 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 37 [2020-12-23 01:19:55,801 INFO L348 Elim1Store]: treesize reduction 166, result has 37.4 percent of original size [2020-12-23 01:19:55,802 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 133 [2020-12-23 01:19:55,805 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:55,900 INFO L625 ElimStorePlain]: treesize reduction 58, result has 57.4 percent of original size [2020-12-23 01:19:55,905 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:19:55,906 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:83, output treesize:78 [2020-12-23 01:19:56,172 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:56,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:56,246 INFO L348 Elim1Store]: treesize reduction 66, result has 47.2 percent of original size [2020-12-23 01:19:56,247 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 149 [2020-12-23 01:19:56,251 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:56,354 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-12-23 01:19:56,355 INFO L625 ElimStorePlain]: treesize reduction 99, result has 44.4 percent of original size [2020-12-23 01:19:56,356 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:19:56,356 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:106, output treesize:79 [2020-12-23 01:19:56,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:56,536 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:19:56,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:56,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:56,621 INFO L348 Elim1Store]: treesize reduction 66, result has 47.2 percent of original size [2020-12-23 01:19:56,622 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 94 treesize of output 157 [2020-12-23 01:19:56,626 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:56,736 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2020-12-23 01:19:56,737 INFO L625 ElimStorePlain]: treesize reduction 88, result has 50.3 percent of original size [2020-12-23 01:19:56,738 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:19:56,738 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:89 [2020-12-23 01:19:56,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:56,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:56,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:56,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:56,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:56,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:19:56,961 INFO L348 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2020-12-23 01:19:56,962 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 95 treesize of output 94 [2020-12-23 01:19:56,964 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:19:57,010 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:19:57,013 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 01:19:57,013 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:105, output treesize:101 [2020-12-23 01:19:57,478 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-12-23 01:19:58,111 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-23 01:19:58,589 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:19:58,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:19:58,599 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:19:58,605 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 01:19:58,729 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:19:58,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632694090] [2020-12-23 01:19:58,730 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:19:58,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573789607] [2020-12-23 01:19:58,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:19:58,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-12-23 01:19:58,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530956620] [2020-12-23 01:19:58,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-23 01:19:58,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:19:58,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-23 01:19:58,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2020-12-23 01:19:58,732 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 24 states. [2020-12-23 01:20:01,524 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-12-23 01:20:01,842 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-12-23 01:20:04,456 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-12-23 01:20:04,855 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-12-23 01:20:05,190 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-12-23 01:20:05,564 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-12-23 01:20:06,023 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-12-23 01:20:06,394 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-12-23 01:20:06,747 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2020-12-23 01:20:07,142 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2020-12-23 01:20:07,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:20:07,163 INFO L93 Difference]: Finished difference Result 86 states and 91 transitions. [2020-12-23 01:20:07,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-23 01:20:07,165 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 36 [2020-12-23 01:20:07,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:20:07,166 INFO L225 Difference]: With dead ends: 86 [2020-12-23 01:20:07,166 INFO L226 Difference]: Without dead ends: 66 [2020-12-23 01:20:07,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-12-23 01:20:07,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-23 01:20:07,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 42. [2020-12-23 01:20:07,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-23 01:20:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2020-12-23 01:20:07,181 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 36 [2020-12-23 01:20:07,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:20:07,181 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2020-12-23 01:20:07,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-23 01:20:07,181 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2020-12-23 01:20:07,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-23 01:20:07,182 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:20:07,182 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:20:07,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:20:07,391 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:20:07,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:20:07,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1968335218, now seen corresponding path program 9 times [2020-12-23 01:20:07,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:20:07,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910015735] [2020-12-23 01:20:07,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:20:07,407 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:20:07,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975567802] [2020-12-23 01:20:07,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:20:07,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-12-23 01:20:07,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:20:07,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 01:20:07,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:20:07,787 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 01:20:07,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910015735] [2020-12-23 01:20:07,788 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:20:07,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975567802] [2020-12-23 01:20:07,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:20:07,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-12-23 01:20:07,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166472934] [2020-12-23 01:20:07,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 01:20:07,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:20:07,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 01:20:07,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-12-23 01:20:07,789 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 11 states. [2020-12-23 01:20:08,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:20:08,235 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2020-12-23 01:20:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-23 01:20:08,236 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2020-12-23 01:20:08,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:20:08,237 INFO L225 Difference]: With dead ends: 95 [2020-12-23 01:20:08,237 INFO L226 Difference]: Without dead ends: 68 [2020-12-23 01:20:08,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2020-12-23 01:20:08,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-23 01:20:08,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 39. [2020-12-23 01:20:08,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-23 01:20:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-12-23 01:20:08,251 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 38 [2020-12-23 01:20:08,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:20:08,251 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-12-23 01:20:08,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 01:20:08,252 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-12-23 01:20:08,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-23 01:20:08,255 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:20:08,255 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:20:08,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-23 01:20:08,466 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:20:08,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:20:08,467 INFO L82 PathProgramCache]: Analyzing trace with hash -981804622, now seen corresponding path program 10 times [2020-12-23 01:20:08,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:20:08,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490724762] [2020-12-23 01:20:08,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:20:08,484 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:20:08,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894745637] [2020-12-23 01:20:08,484 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:20:08,546 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 01:20:08,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:20:08,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 01:20:08,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:20:08,741 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 01:20:08,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490724762] [2020-12-23 01:20:08,741 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:20:08,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894745637] [2020-12-23 01:20:08,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:20:08,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-12-23 01:20:08,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39814086] [2020-12-23 01:20:08,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 01:20:08,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:20:08,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 01:20:08,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-12-23 01:20:08,744 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 11 states. [2020-12-23 01:20:09,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:20:09,122 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2020-12-23 01:20:09,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 01:20:09,124 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2020-12-23 01:20:09,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:20:09,124 INFO L225 Difference]: With dead ends: 67 [2020-12-23 01:20:09,124 INFO L226 Difference]: Without dead ends: 50 [2020-12-23 01:20:09,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-12-23 01:20:09,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-23 01:20:09,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2020-12-23 01:20:09,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-23 01:20:09,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2020-12-23 01:20:09,139 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 38 [2020-12-23 01:20:09,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:20:09,140 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2020-12-23 01:20:09,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 01:20:09,140 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2020-12-23 01:20:09,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-23 01:20:09,141 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:20:09,141 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:20:09,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-23 01:20:09,357 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:20:09,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:20:09,358 INFO L82 PathProgramCache]: Analyzing trace with hash -835467152, now seen corresponding path program 11 times [2020-12-23 01:20:09,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:20:09,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015937275] [2020-12-23 01:20:09,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:20:09,380 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:20:09,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187185608] [2020-12-23 01:20:09,382 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:20:09,528 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2020-12-23 01:20:09,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:20:09,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 60 conjunts are in the unsatisfiable core [2020-12-23 01:20:09,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:20:09,556 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 01:20:09,559 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:09,585 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:09,592 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-23 01:20:09,595 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:09,636 INFO L625 ElimStorePlain]: treesize reduction 4, result has 85.7 percent of original size [2020-12-23 01:20:09,637 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:09,638 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:24 [2020-12-23 01:20:09,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:09,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:09,686 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:09,720 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-12-23 01:20:09,721 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 57 [2020-12-23 01:20:09,725 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:09,791 INFO L625 ElimStorePlain]: treesize reduction 44, result has 50.6 percent of original size [2020-12-23 01:20:09,792 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:09,792 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:45 [2020-12-23 01:20:09,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:09,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:09,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:09,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:09,890 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:09,908 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:09,909 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 71 [2020-12-23 01:20:09,912 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:09,988 INFO L625 ElimStorePlain]: treesize reduction 23, result has 74.4 percent of original size [2020-12-23 01:20:09,989 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:09,990 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:67 [2020-12-23 01:20:10,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,153 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:10,154 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 97 [2020-12-23 01:20:10,159 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:10,253 INFO L625 ElimStorePlain]: treesize reduction 28, result has 73.1 percent of original size [2020-12-23 01:20:10,255 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:10,255 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:76 [2020-12-23 01:20:10,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,524 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:10,524 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 93 treesize of output 142 [2020-12-23 01:20:10,529 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:10,686 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-12-23 01:20:10,687 INFO L625 ElimStorePlain]: treesize reduction 77, result has 58.2 percent of original size [2020-12-23 01:20:10,690 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 01:20:10,691 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:107, output treesize:107 [2020-12-23 01:20:10,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,972 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:10,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:10,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,047 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:11,048 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:11,207 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-23 01:20:11,208 INFO L348 Elim1Store]: treesize reduction 24, result has 76.0 percent of original size [2020-12-23 01:20:11,209 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 19 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 46 case distinctions, treesize of input 128 treesize of output 208 [2020-12-23 01:20:11,217 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:11,446 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2020-12-23 01:20:11,448 INFO L625 ElimStorePlain]: treesize reduction 169, result has 51.9 percent of original size [2020-12-23 01:20:11,451 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 01:20:11,451 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:145, output treesize:182 [2020-12-23 01:20:11,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,749 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:11,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,837 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:11,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,841 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:11,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:11,844 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:11,845 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:12,071 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2020-12-23 01:20:12,072 INFO L348 Elim1Store]: treesize reduction 16, result has 90.1 percent of original size [2020-12-23 01:20:12,073 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 19 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 57 case distinctions, treesize of input 204 treesize of output 293 [2020-12-23 01:20:12,081 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:12,345 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2020-12-23 01:20:12,345 INFO L625 ElimStorePlain]: treesize reduction 252, result has 47.6 percent of original size [2020-12-23 01:20:12,349 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 01:20:12,349 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:221, output treesize:229 [2020-12-23 01:20:12,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,790 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:12,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,809 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:12,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,813 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:12,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:12,821 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:13,290 WARN L197 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-12-23 01:20:13,291 INFO L348 Elim1Store]: treesize reduction 8, result has 97.2 percent of original size [2020-12-23 01:20:13,291 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 23 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 58 case distinctions, treesize of input 248 treesize of output 430 [2020-12-23 01:20:13,301 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 01:20:13,302 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:20:13,303 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 01:20:13,303 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:20:13,304 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 2, 1] term [2020-12-23 01:20:13,304 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:20:13,305 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 2, 1] term [2020-12-23 01:20:13,305 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:20:13,305 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 1] term [2020-12-23 01:20:13,306 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:20:13,316 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:13,901 WARN L197 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 68 [2020-12-23 01:20:13,901 INFO L625 ElimStorePlain]: treesize reduction 745, result has 19.8 percent of original size [2020-12-23 01:20:13,904 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 01:20:13,905 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:265, output treesize:184 [2020-12-23 01:20:14,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,296 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:14,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,309 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:14,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,338 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:14,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:14,743 WARN L197 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-12-23 01:20:14,744 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:14,745 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 27 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 70 case distinctions, treesize of input 147 treesize of output 469 [2020-12-23 01:20:14,756 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-23 01:20:14,756 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:20:14,757 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 01:20:14,757 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:20:14,758 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 01:20:14,758 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:20:14,759 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 01:20:14,759 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:20:14,759 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 01:20:14,760 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:20:14,760 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:20:14,760 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:20:14,761 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:20:14,761 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:20:14,761 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:20:14,761 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:20:14,769 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 8, 3, 7, 3, 6, 3, 5, 3, 4, 3, 3, 3, 2, 4, 1] term [2020-12-23 01:20:14,769 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:20:14,771 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 8, 3, 7, 3, 6, 3, 5, 3, 4, 3, 3, 3, 2, 4, 1] term [2020-12-23 01:20:14,771 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:20:14,772 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 8, 3, 7, 3, 6, 3, 5, 3, 4, 3, 3, 3, 2, 4, 1] term [2020-12-23 01:20:14,772 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:20:14,773 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 8, 3, 7, 3, 6, 3, 5, 3, 4, 3, 3, 3, 2, 4, 1] term [2020-12-23 01:20:14,773 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:20:14,773 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:20:14,774 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:20:14,776 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 7, 3, 6, 3, 5, 3, 4, 3, 3, 3, 2, 4, 1] term [2020-12-23 01:20:14,776 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:20:14,777 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 3, 5, 3, 4, 3, 3, 3, 2, 4, 1] term [2020-12-23 01:20:14,778 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:20:14,778 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 3, 4, 3, 3, 3, 2, 4, 1] term [2020-12-23 01:20:14,779 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:20:14,779 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 01:20:14,779 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:20:14,780 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2020-12-23 01:20:14,780 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:20:14,781 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:20:14,781 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 01:20:14,782 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:20:14,782 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:20:14,782 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:20:14,782 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:20:14,785 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:20:14,785 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:20:14,785 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:20:14,786 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:20:14,845 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:15,243 WARN L197 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 59 [2020-12-23 01:20:15,244 INFO L625 ElimStorePlain]: treesize reduction 853, result has 13.6 percent of original size [2020-12-23 01:20:15,247 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 01:20:15,248 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:158, output treesize:134 [2020-12-23 01:20:16,536 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-12-23 01:20:17,092 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 1 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:20:17,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015937275] [2020-12-23 01:20:17,093 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:20:17,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187185608] [2020-12-23 01:20:17,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:20:17,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-12-23 01:20:17,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610904121] [2020-12-23 01:20:17,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-23 01:20:17,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:20:17,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-23 01:20:17,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2020-12-23 01:20:17,095 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 24 states. [2020-12-23 01:20:17,825 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-12-23 01:20:18,146 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-23 01:20:19,179 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-12-23 01:20:19,489 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-12-23 01:20:19,993 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-12-23 01:20:20,214 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-23 01:20:20,641 WARN L197 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-12-23 01:20:21,179 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2020-12-23 01:20:21,706 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-12-23 01:20:22,295 WARN L197 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 100 [2020-12-23 01:20:22,988 WARN L197 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-12-23 01:20:23,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:20:23,299 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2020-12-23 01:20:23,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-23 01:20:23,303 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 40 [2020-12-23 01:20:23,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:20:23,303 INFO L225 Difference]: With dead ends: 56 [2020-12-23 01:20:23,303 INFO L226 Difference]: Without dead ends: 54 [2020-12-23 01:20:23,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=164, Invalid=1026, Unknown=0, NotChecked=0, Total=1190 [2020-12-23 01:20:23,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-23 01:20:23,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2020-12-23 01:20:23,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-23 01:20:23,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2020-12-23 01:20:23,322 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 40 [2020-12-23 01:20:23,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:20:23,322 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2020-12-23 01:20:23,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-23 01:20:23,323 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2020-12-23 01:20:23,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-23 01:20:23,323 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:20:23,324 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:20:23,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-23 01:20:23,537 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:20:23,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:20:23,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1910132122, now seen corresponding path program 12 times [2020-12-23 01:20:23,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:20:23,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601572109] [2020-12-23 01:20:23,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:20:23,560 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:20:23,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851165643] [2020-12-23 01:20:23,564 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:20:23,749 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2020-12-23 01:20:23,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:20:23,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 63 conjunts are in the unsatisfiable core [2020-12-23 01:20:23,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:20:23,816 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 01:20:23,819 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:23,849 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:23,858 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-23 01:20:23,860 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:23,911 INFO L625 ElimStorePlain]: treesize reduction 4, result has 87.1 percent of original size [2020-12-23 01:20:23,913 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:23,913 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:27 [2020-12-23 01:20:23,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:23,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:23,968 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:24,002 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-12-23 01:20:24,002 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 57 [2020-12-23 01:20:24,005 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:24,076 INFO L625 ElimStorePlain]: treesize reduction 20, result has 73.0 percent of original size [2020-12-23 01:20:24,077 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:24,078 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:54 [2020-12-23 01:20:24,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,203 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:24,213 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:24,213 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 64 [2020-12-23 01:20:24,216 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:24,300 INFO L625 ElimStorePlain]: treesize reduction 4, result has 94.2 percent of original size [2020-12-23 01:20:24,301 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:24,302 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:81, output treesize:65 [2020-12-23 01:20:24,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,464 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:24,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,483 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:24,483 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 83 [2020-12-23 01:20:24,487 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:24,582 INFO L625 ElimStorePlain]: treesize reduction 22, result has 76.6 percent of original size [2020-12-23 01:20:24,584 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:24,584 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:72 [2020-12-23 01:20:24,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:24,825 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:24,826 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 109 [2020-12-23 01:20:24,830 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:24,952 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-12-23 01:20:24,953 INFO L625 ElimStorePlain]: treesize reduction 30, result has 71.7 percent of original size [2020-12-23 01:20:24,955 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 01:20:24,955 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:96, output treesize:76 [2020-12-23 01:20:25,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,229 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:25,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,267 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:25,268 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:25,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,401 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-12-23 01:20:25,402 INFO L348 Elim1Store]: treesize reduction 24, result has 71.1 percent of original size [2020-12-23 01:20:25,402 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 14 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 37 case distinctions, treesize of input 99 treesize of output 171 [2020-12-23 01:20:25,408 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:25,591 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-12-23 01:20:25,592 INFO L625 ElimStorePlain]: treesize reduction 92, result has 53.5 percent of original size [2020-12-23 01:20:25,594 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 01:20:25,595 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:114, output treesize:106 [2020-12-23 01:20:25,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,909 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:25,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,951 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:25,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,956 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:25,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,965 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:25,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:25,971 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:26,131 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-23 01:20:26,133 INFO L348 Elim1Store]: treesize reduction 16, result has 80.7 percent of original size [2020-12-23 01:20:26,133 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 14 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 46 case distinctions, treesize of input 127 treesize of output 201 [2020-12-23 01:20:26,139 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:26,347 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-12-23 01:20:26,348 INFO L625 ElimStorePlain]: treesize reduction 138, result has 50.2 percent of original size [2020-12-23 01:20:26,350 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 01:20:26,350 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:142, output treesize:139 [2020-12-23 01:20:26,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,736 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:26,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,771 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:26,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,780 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:26,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,792 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:26,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,802 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:26,804 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:26,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:26,808 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:27,121 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-12-23 01:20:27,122 INFO L348 Elim1Store]: treesize reduction 24, result has 85.3 percent of original size [2020-12-23 01:20:27,123 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 14 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 68 case distinctions, treesize of input 160 treesize of output 291 [2020-12-23 01:20:27,131 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:27,418 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2020-12-23 01:20:27,420 INFO L625 ElimStorePlain]: treesize reduction 242, result has 43.2 percent of original size [2020-12-23 01:20:27,422 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 01:20:27,422 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:175, output treesize:184 [2020-12-23 01:20:27,628 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-23 01:20:27,851 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-23 01:20:27,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,906 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:27,907 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:27,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,931 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:27,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,935 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:27,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,953 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:27,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,962 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:27,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,969 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:27,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:27,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:28,461 WARN L197 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-12-23 01:20:28,463 INFO L348 Elim1Store]: treesize reduction 24, result has 89.1 percent of original size [2020-12-23 01:20:28,463 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 18 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 80 case distinctions, treesize of input 194 treesize of output 361 [2020-12-23 01:20:28,470 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 01:20:28,471 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:20:28,471 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 2, 1] term [2020-12-23 01:20:28,472 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:20:28,472 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:20:28,472 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:20:28,472 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:20:28,473 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:20:28,478 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:28,805 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 64 [2020-12-23 01:20:28,806 INFO L625 ElimStorePlain]: treesize reduction 377, result has 33.5 percent of original size [2020-12-23 01:20:28,810 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 01:20:28,810 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:206, output treesize:190 [2020-12-23 01:20:30,515 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:20:30,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:20:30,518 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:20:30,521 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 01:20:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:20:30,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601572109] [2020-12-23 01:20:30,644 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:20:30,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851165643] [2020-12-23 01:20:30,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:20:30,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-12-23 01:20:30,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10498455] [2020-12-23 01:20:30,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-12-23 01:20:30,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:20:30,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-12-23 01:20:30,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2020-12-23 01:20:30,646 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 28 states. [2020-12-23 01:20:31,522 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-12-23 01:20:31,714 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-12-23 01:20:31,926 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-12-23 01:20:32,125 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-12-23 01:20:32,436 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-12-23 01:20:32,866 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-23 01:20:33,142 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-12-23 01:20:33,416 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-12-23 01:20:33,714 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-12-23 01:20:34,036 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2020-12-23 01:20:34,404 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-12-23 01:20:34,775 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-12-23 01:20:35,221 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-12-23 01:20:35,592 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-12-23 01:20:35,971 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2020-12-23 01:20:36,413 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2020-12-23 01:20:36,748 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2020-12-23 01:20:36,982 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-12-23 01:20:37,361 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2020-12-23 01:20:37,788 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 87 [2020-12-23 01:20:38,332 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2020-12-23 01:20:38,939 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2020-12-23 01:20:39,520 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-12-23 01:20:39,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:20:39,552 INFO L93 Difference]: Finished difference Result 72 states and 75 transitions. [2020-12-23 01:20:39,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-23 01:20:39,555 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 44 [2020-12-23 01:20:39,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:20:39,556 INFO L225 Difference]: With dead ends: 72 [2020-12-23 01:20:39,556 INFO L226 Difference]: Without dead ends: 48 [2020-12-23 01:20:39,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 770 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=424, Invalid=2546, Unknown=0, NotChecked=0, Total=2970 [2020-12-23 01:20:39,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-12-23 01:20:39,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2020-12-23 01:20:39,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-23 01:20:39,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-12-23 01:20:39,578 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 44 [2020-12-23 01:20:39,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:20:39,579 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-12-23 01:20:39,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-12-23 01:20:39,579 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-12-23 01:20:39,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-23 01:20:39,579 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:20:39,579 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:20:39,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:20:39,794 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:20:39,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:20:39,795 INFO L82 PathProgramCache]: Analyzing trace with hash 2060720804, now seen corresponding path program 13 times [2020-12-23 01:20:39,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:20:39,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055272717] [2020-12-23 01:20:39,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:20:39,816 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:20:39,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1217506846] [2020-12-23 01:20:39,816 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:20:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:20:39,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 01:20:39,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:20:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-23 01:20:40,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055272717] [2020-12-23 01:20:40,181 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:20:40,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217506846] [2020-12-23 01:20:40,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:20:40,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-12-23 01:20:40,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842017571] [2020-12-23 01:20:40,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-23 01:20:40,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:20:40,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-23 01:20:40,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:20:40,184 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 13 states. [2020-12-23 01:20:40,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:20:40,685 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2020-12-23 01:20:40,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 01:20:40,687 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 46 [2020-12-23 01:20:40,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:20:40,687 INFO L225 Difference]: With dead ends: 92 [2020-12-23 01:20:40,688 INFO L226 Difference]: Without dead ends: 59 [2020-12-23 01:20:40,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-12-23 01:20:40,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-12-23 01:20:40,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 49. [2020-12-23 01:20:40,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-12-23 01:20:40,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-12-23 01:20:40,709 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 46 [2020-12-23 01:20:40,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:20:40,709 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-12-23 01:20:40,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-23 01:20:40,709 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-12-23 01:20:40,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-23 01:20:40,710 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:20:40,710 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:20:40,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:20:40,921 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:20:40,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:20:40,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1621255262, now seen corresponding path program 14 times [2020-12-23 01:20:40,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:20:40,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646015992] [2020-12-23 01:20:40,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:20:40,938 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:20:40,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1133521230] [2020-12-23 01:20:40,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:20:41,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:20:41,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:20:41,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 65 conjunts are in the unsatisfiable core [2020-12-23 01:20:41,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:20:41,079 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 01:20:41,083 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:41,108 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:41,117 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-23 01:20:41,119 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:41,169 INFO L625 ElimStorePlain]: treesize reduction 4, result has 85.7 percent of original size [2020-12-23 01:20:41,171 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:41,172 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:24 [2020-12-23 01:20:41,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,215 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:41,255 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-12-23 01:20:41,256 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 57 [2020-12-23 01:20:41,258 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:41,327 INFO L625 ElimStorePlain]: treesize reduction 38, result has 51.9 percent of original size [2020-12-23 01:20:41,329 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:41,329 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:41 [2020-12-23 01:20:41,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,433 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:41,451 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:41,451 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 71 [2020-12-23 01:20:41,454 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:41,543 INFO L625 ElimStorePlain]: treesize reduction 41, result has 62.0 percent of original size [2020-12-23 01:20:41,544 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:41,545 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:67 [2020-12-23 01:20:41,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,691 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:41,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,712 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:41,713 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 85 [2020-12-23 01:20:41,716 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:41,816 INFO L625 ElimStorePlain]: treesize reduction 22, result has 80.2 percent of original size [2020-12-23 01:20:41,817 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:41,818 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:89 [2020-12-23 01:20:41,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:41,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,024 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:42,025 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 10 case distinctions, treesize of input 107 treesize of output 90 [2020-12-23 01:20:42,028 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:42,128 INFO L625 ElimStorePlain]: treesize reduction 4, result has 95.2 percent of original size [2020-12-23 01:20:42,129 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:42,130 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:116, output treesize:79 [2020-12-23 01:20:42,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,364 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:42,365 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 85 treesize of output 119 [2020-12-23 01:20:42,369 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:42,511 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-12-23 01:20:42,513 INFO L625 ElimStorePlain]: treesize reduction 23, result has 78.1 percent of original size [2020-12-23 01:20:42,517 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 01:20:42,517 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:94, output treesize:82 [2020-12-23 01:20:42,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,814 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:42,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,872 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:42,874 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:42,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:42,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,029 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-12-23 01:20:43,031 INFO L348 Elim1Store]: treesize reduction 24, result has 71.1 percent of original size [2020-12-23 01:20:43,031 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 20 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 46 case distinctions, treesize of input 108 treesize of output 183 [2020-12-23 01:20:43,037 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:43,248 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2020-12-23 01:20:43,249 INFO L625 ElimStorePlain]: treesize reduction 110, result has 51.3 percent of original size [2020-12-23 01:20:43,252 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 01:20:43,253 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:120, output treesize:116 [2020-12-23 01:20:43,597 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:43,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,649 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:43,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,655 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:43,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,667 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:43,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,670 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:43,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:43,863 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2020-12-23 01:20:43,864 INFO L348 Elim1Store]: treesize reduction 32, result has 68.6 percent of original size [2020-12-23 01:20:43,865 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 20 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 67 case distinctions, treesize of input 140 treesize of output 223 [2020-12-23 01:20:43,873 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:44,102 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-12-23 01:20:44,103 INFO L625 ElimStorePlain]: treesize reduction 149, result has 52.1 percent of original size [2020-12-23 01:20:44,107 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 01:20:44,107 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:152, output treesize:162 [2020-12-23 01:20:44,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,499 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:44,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,509 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:44,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,512 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:44,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,518 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:44,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,557 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:44,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:44,762 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-23 01:20:44,763 INFO L348 Elim1Store]: treesize reduction 24, result has 75.8 percent of original size [2020-12-23 01:20:44,764 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 20 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 67 case distinctions, treesize of input 157 treesize of output 228 [2020-12-23 01:20:44,772 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:45,039 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-12-23 01:20:45,041 INFO L625 ElimStorePlain]: treesize reduction 149, result has 51.6 percent of original size [2020-12-23 01:20:45,043 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 01:20:45,044 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:169, output treesize:159 [2020-12-23 01:20:45,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,460 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:45,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,485 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:45,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,528 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:45,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,551 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:45,552 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:45,554 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:45,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:45,926 WARN L197 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-12-23 01:20:45,928 INFO L348 Elim1Store]: treesize reduction 24, result has 85.7 percent of original size [2020-12-23 01:20:45,928 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 20 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 80 case distinctions, treesize of input 168 treesize of output 299 [2020-12-23 01:20:45,938 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:46,184 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-12-23 01:20:46,186 INFO L625 ElimStorePlain]: treesize reduction 68, result has 70.8 percent of original size [2020-12-23 01:20:46,188 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 01:20:46,189 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:180, output treesize:165 [2020-12-23 01:20:46,405 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-23 01:20:46,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,706 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:46,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,792 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:46,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,810 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:46,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,815 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:46,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:46,820 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:47,376 WARN L197 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 01:20:47,377 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:47,377 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 30 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 93 case distinctions, treesize of input 164 treesize of output 472 [2020-12-23 01:20:47,390 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 01:20:47,390 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:20:47,391 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 01:20:47,391 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:20:47,392 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 01:20:47,392 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:20:47,393 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 01:20:47,393 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:20:47,394 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:20:47,394 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:20:47,395 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:20:47,395 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:20:47,395 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:20:47,395 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:20:47,412 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:48,301 WARN L197 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 65 [2020-12-23 01:20:48,302 INFO L625 ElimStorePlain]: treesize reduction 1068, result has 14.4 percent of original size [2020-12-23 01:20:48,305 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 01:20:48,305 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:173, output treesize:179 [2020-12-23 01:20:49,380 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 01:20:50,935 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:20:50,938 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:20:50,939 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 01:20:50,942 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 01:20:51,095 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:20:51,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646015992] [2020-12-23 01:20:51,096 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:20:51,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133521230] [2020-12-23 01:20:51,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:20:51,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-12-23 01:20:51,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502680296] [2020-12-23 01:20:51,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-23 01:20:51,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:20:51,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-23 01:20:51,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=716, Unknown=0, NotChecked=0, Total=812 [2020-12-23 01:20:51,098 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 29 states. [2020-12-23 01:20:51,772 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-12-23 01:20:52,878 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-12-23 01:20:53,584 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 01:20:54,117 WARN L197 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2020-12-23 01:20:54,576 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-12-23 01:20:55,165 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2020-12-23 01:20:55,863 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2020-12-23 01:20:56,494 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-12-23 01:20:57,167 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-12-23 01:20:57,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:20:57,534 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2020-12-23 01:20:57,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 01:20:57,537 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 48 [2020-12-23 01:20:57,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:20:57,537 INFO L225 Difference]: With dead ends: 58 [2020-12-23 01:20:57,537 INFO L226 Difference]: Without dead ends: 56 [2020-12-23 01:20:57,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=170, Invalid=1236, Unknown=0, NotChecked=0, Total=1406 [2020-12-23 01:20:57,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-23 01:20:57,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2020-12-23 01:20:57,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-23 01:20:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2020-12-23 01:20:57,556 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 48 [2020-12-23 01:20:57,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:20:57,556 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2020-12-23 01:20:57,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-23 01:20:57,556 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-12-23 01:20:57,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 01:20:57,556 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:20:57,557 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:20:57,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-12-23 01:20:57,758 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:20:57,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:20:57,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1122933912, now seen corresponding path program 15 times [2020-12-23 01:20:57,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:20:57,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883430882] [2020-12-23 01:20:57,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:20:57,773 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:20:57,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745191682] [2020-12-23 01:20:57,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:20:57,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-12-23 01:20:57,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:20:57,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 73 conjunts are in the unsatisfiable core [2020-12-23 01:20:57,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:20:58,095 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 01:20:58,098 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:58,130 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:58,216 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:58,216 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 95 [2020-12-23 01:20:58,219 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:58,351 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-12-23 01:20:58,352 INFO L625 ElimStorePlain]: treesize reduction 53, result has 50.9 percent of original size [2020-12-23 01:20:58,358 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:58,358 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:57, output treesize:27 [2020-12-23 01:20:58,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,410 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:58,441 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-12-23 01:20:58,442 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 57 [2020-12-23 01:20:58,444 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:58,511 INFO L625 ElimStorePlain]: treesize reduction 16, result has 75.4 percent of original size [2020-12-23 01:20:58,512 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:58,513 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:49 [2020-12-23 01:20:58,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,626 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:20:58,639 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:58,640 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 71 [2020-12-23 01:20:58,643 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:58,727 INFO L625 ElimStorePlain]: treesize reduction 41, result has 63.1 percent of original size [2020-12-23 01:20:58,728 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:58,729 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:70 [2020-12-23 01:20:58,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:58,909 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:20:58,909 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 68 [2020-12-23 01:20:58,912 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:59,013 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-12-23 01:20:59,015 INFO L625 ElimStorePlain]: treesize reduction 16, result has 82.4 percent of original size [2020-12-23 01:20:59,019 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:59,019 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2020-12-23 01:20:59,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:59,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:59,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:59,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:59,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:59,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:20:59,581 WARN L197 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-12-23 01:20:59,582 INFO L348 Elim1Store]: treesize reduction 116, result has 65.3 percent of original size [2020-12-23 01:20:59,582 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 92 treesize of output 252 [2020-12-23 01:20:59,588 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:20:59,765 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2020-12-23 01:20:59,766 INFO L625 ElimStorePlain]: treesize reduction 124, result has 40.1 percent of original size [2020-12-23 01:20:59,767 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:20:59,768 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:101, output treesize:83 [2020-12-23 01:21:00,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:21:00,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,203 INFO L244 Elim1Store]: Index analysis took 179 ms [2020-12-23 01:21:00,487 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-23 01:21:00,488 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:21:00,488 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 91 treesize of output 337 [2020-12-23 01:21:00,496 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:00,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,526 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:00,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:00,538 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 80 [2020-12-23 01:21:00,541 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:01,052 WARN L197 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 56 [2020-12-23 01:21:01,053 INFO L625 ElimStorePlain]: treesize reduction 260, result has 43.6 percent of original size [2020-12-23 01:21:01,055 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 01:21:01,055 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:213, output treesize:201 [2020-12-23 01:21:01,315 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-12-23 01:21:01,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:21:01,322 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:21:02,044 WARN L197 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-12-23 01:21:02,054 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:21:02,452 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 01:21:02,875 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-23 01:21:02,883 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:21:02,898 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:21:02,899 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:02,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,922 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:02,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,930 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:02,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:02,986 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:03,007 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:03,036 INFO L244 Elim1Store]: Index analysis took 126 ms [2020-12-23 01:21:03,038 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 93 [2020-12-23 01:21:03,041 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:03,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,073 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:03,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,083 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:03,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:03,125 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:03,663 WARN L197 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-23 01:21:03,664 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:21:03,664 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 121 treesize of output 509 [2020-12-23 01:21:03,672 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[16, 3, 2, 1] term [2020-12-23 01:21:03,673 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 01:21:03,674 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[15, 3, 2, 1] term [2020-12-23 01:21:03,674 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 01:21:03,674 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2020-12-23 01:21:03,675 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 01:21:03,675 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 2, 1] term [2020-12-23 01:21:03,675 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 01:21:03,676 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2020-12-23 01:21:03,676 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 01:21:03,676 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2020-12-23 01:21:03,676 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:21:03,677 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-23 01:21:03,677 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:21:03,678 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-23 01:21:03,678 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:21:03,678 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 01:21:03,679 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:21:03,679 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 01:21:03,679 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:21:03,679 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 01:21:03,679 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:21:03,680 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 01:21:03,680 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:21:03,680 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 2, 1] term [2020-12-23 01:21:03,681 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:21:03,681 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:21:03,681 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:21:03,681 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:21:03,681 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:21:03,709 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:04,503 WARN L197 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-12-23 01:21:04,505 INFO L625 ElimStorePlain]: treesize reduction 1215, result has 18.0 percent of original size [2020-12-23 01:21:04,508 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 01:21:04,508 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:382, output treesize:267 [2020-12-23 01:21:04,980 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-23 01:21:05,476 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 01:21:05,482 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:21:05,497 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:21:05,499 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:05,506 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:05,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,527 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:05,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,532 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:05,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:05,564 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:05,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:06,643 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 132 DAG size of output: 130 [2020-12-23 01:21:06,645 INFO L348 Elim1Store]: treesize reduction 8, result has 98.3 percent of original size [2020-12-23 01:21:06,645 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 12 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 49 case distinctions, treesize of input 175 treesize of output 577 [2020-12-23 01:21:06,655 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[17, 3, 2, 1] term [2020-12-23 01:21:06,656 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-23 01:21:06,657 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[16, 3, 2, 1] term [2020-12-23 01:21:06,658 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 01:21:06,658 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[15, 3, 2, 1] term [2020-12-23 01:21:06,659 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 01:21:06,659 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2020-12-23 01:21:06,659 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 01:21:06,660 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 2, 1] term [2020-12-23 01:21:06,661 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 01:21:06,662 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2020-12-23 01:21:06,662 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 01:21:06,663 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2020-12-23 01:21:06,663 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:21:06,664 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-23 01:21:06,664 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:21:06,665 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-23 01:21:06,665 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:21:06,666 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 01:21:06,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:21:06,666 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 01:21:06,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:21:06,667 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 01:21:06,667 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:21:06,668 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 01:21:06,668 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:21:06,669 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:21:06,669 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:21:06,670 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:21:06,670 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:21:06,670 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:21:06,670 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:21:06,688 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:07,167 WARN L197 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 67 [2020-12-23 01:21:07,171 INFO L625 ElimStorePlain]: treesize reduction 344, result has 36.3 percent of original size [2020-12-23 01:21:07,174 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 01:21:07,174 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:340, output treesize:196 [2020-12-23 01:21:07,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,658 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:07,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,668 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:07,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,674 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:07,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,694 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:07,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,704 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:07,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:07,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:09,106 WARN L197 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 153 DAG size of output: 151 [2020-12-23 01:21:09,107 INFO L348 Elim1Store]: treesize reduction 8, result has 98.6 percent of original size [2020-12-23 01:21:09,108 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 12 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 59 case distinctions, treesize of input 211 treesize of output 694 [2020-12-23 01:21:09,119 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[21, 3, 2, 1] term [2020-12-23 01:21:09,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 21 disjuncts [2020-12-23 01:21:09,120 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[20, 3, 2, 1] term [2020-12-23 01:21:09,120 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 20 disjuncts [2020-12-23 01:21:09,121 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[19, 3, 2, 1] term [2020-12-23 01:21:09,122 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 19 disjuncts [2020-12-23 01:21:09,123 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[18, 3, 2, 1] term [2020-12-23 01:21:09,123 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 01:21:09,124 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[17, 3, 2, 1] term [2020-12-23 01:21:09,125 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-23 01:21:09,126 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[16, 3, 2, 1] term [2020-12-23 01:21:09,126 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 01:21:09,128 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[15, 3, 2, 1] term [2020-12-23 01:21:09,128 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 01:21:09,129 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2020-12-23 01:21:09,129 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 01:21:09,130 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 2, 1] term [2020-12-23 01:21:09,130 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 01:21:09,131 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2020-12-23 01:21:09,131 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 01:21:09,133 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2020-12-23 01:21:09,133 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:21:09,133 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-23 01:21:09,133 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:21:09,134 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-23 01:21:09,135 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:21:09,135 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 1] term [2020-12-23 01:21:09,135 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:21:09,136 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 1] term [2020-12-23 01:21:09,136 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:21:09,137 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 1] term [2020-12-23 01:21:09,137 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 01:21:09,138 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2020-12-23 01:21:09,138 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 01:21:09,138 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:21:09,139 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 01:21:09,139 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:21:09,139 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:21:09,140 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:21:09,140 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:21:09,203 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:10,657 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 324 DAG size of output: 75 [2020-12-23 01:21:10,659 INFO L625 ElimStorePlain]: treesize reduction 3608, result has 6.0 percent of original size [2020-12-23 01:21:10,661 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 01:21:10,661 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:236, output treesize:231 [2020-12-23 01:21:10,972 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-12-23 01:21:11,263 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-23 01:21:11,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,321 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:11,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,336 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:11,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,349 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:11,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,370 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:11,373 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:11,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:11,386 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:11,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:13,089 WARN L197 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 182 DAG size of output: 178 [2020-12-23 01:21:13,090 INFO L348 Elim1Store]: treesize reduction 16, result has 97.6 percent of original size [2020-12-23 01:21:13,091 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 16 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 81 case distinctions, treesize of input 242 treesize of output 832 [2020-12-23 01:21:13,104 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[27, 3, 2, 1] term [2020-12-23 01:21:13,104 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 27 disjuncts [2020-12-23 01:21:13,105 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[26, 3, 2, 1] term [2020-12-23 01:21:13,105 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 26 disjuncts [2020-12-23 01:21:13,106 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[25, 3, 2, 1] term [2020-12-23 01:21:13,107 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 25 disjuncts [2020-12-23 01:21:13,108 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[24, 3, 2, 1] term [2020-12-23 01:21:13,108 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 24 disjuncts [2020-12-23 01:21:13,109 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[23, 3, 2, 1] term [2020-12-23 01:21:13,109 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 23 disjuncts [2020-12-23 01:21:13,111 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[22, 3, 2, 1] term [2020-12-23 01:21:13,111 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 22 disjuncts [2020-12-23 01:21:13,113 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[21, 3, 2, 1] term [2020-12-23 01:21:13,113 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 21 disjuncts [2020-12-23 01:21:13,114 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[20, 3, 1] term [2020-12-23 01:21:13,114 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 20 disjuncts [2020-12-23 01:21:13,116 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[19, 3, 1] term [2020-12-23 01:21:13,116 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 19 disjuncts [2020-12-23 01:21:13,117 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[18, 3, 1] term [2020-12-23 01:21:13,118 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 01:21:13,119 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[17, 3, 1] term [2020-12-23 01:21:13,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-23 01:21:13,120 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[16, 3, 1] term [2020-12-23 01:21:13,120 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 01:21:13,122 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[15, 3, 1] term [2020-12-23 01:21:13,122 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2020-12-23 01:21:13,123 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 1] term [2020-12-23 01:21:13,123 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 01:21:13,124 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 1] term [2020-12-23 01:21:13,124 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 01:21:13,126 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 1] term [2020-12-23 01:21:13,126 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 01:21:13,127 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 1] term [2020-12-23 01:21:13,128 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:21:13,128 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 1] term [2020-12-23 01:21:13,129 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:21:13,129 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 1] term [2020-12-23 01:21:13,129 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-23 01:21:13,130 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 1] term [2020-12-23 01:21:13,130 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-23 01:21:13,131 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 1] term [2020-12-23 01:21:13,131 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 01:21:13,131 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 1] term [2020-12-23 01:21:13,131 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 01:21:13,132 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2020-12-23 01:21:13,132 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 01:21:13,133 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:21:13,133 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 01:21:13,134 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:21:13,134 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:21:13,134 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:21:13,134 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:21:13,191 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:13,872 WARN L197 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 78 [2020-12-23 01:21:13,873 INFO L625 ElimStorePlain]: treesize reduction 541, result has 28.6 percent of original size [2020-12-23 01:21:13,876 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 01:21:13,876 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:267, output treesize:217 [2020-12-23 01:21:14,172 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-23 01:21:14,487 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-23 01:21:14,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,567 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:14,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,661 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:14,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,665 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:14,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,669 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:14,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:14,672 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:15,584 WARN L197 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-12-23 01:21:15,585 INFO L348 Elim1Store]: treesize reduction 8, result has 97.7 percent of original size [2020-12-23 01:21:15,586 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 30 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 94 case distinctions, treesize of input 174 treesize of output 497 [2020-12-23 01:21:15,595 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2020-12-23 01:21:15,595 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:21:15,596 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-23 01:21:15,596 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:21:15,597 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-23 01:21:15,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:21:15,598 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 01:21:15,598 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:21:15,599 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 01:21:15,599 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:21:15,600 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 01:21:15,600 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:21:15,600 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 1] term [2020-12-23 01:21:15,601 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 01:21:15,601 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 1] term [2020-12-23 01:21:15,602 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 01:21:15,602 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 1] term [2020-12-23 01:21:15,603 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 01:21:15,603 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-12-23 01:21:15,604 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 01:21:15,633 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:16,270 WARN L197 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 71 [2020-12-23 01:21:16,271 INFO L625 ElimStorePlain]: treesize reduction 850, result has 17.2 percent of original size [2020-12-23 01:21:16,276 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 01:21:16,276 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:197, output treesize:177 [2020-12-23 01:21:19,314 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:21:19,317 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:21:19,322 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:21:19,324 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 01:21:19,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 01:21:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 45 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:21:19,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883430882] [2020-12-23 01:21:19,612 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:21:19,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745191682] [2020-12-23 01:21:19,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:21:19,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-12-23 01:21:19,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118378885] [2020-12-23 01:21:19,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-12-23 01:21:19,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:21:19,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-12-23 01:21:19,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1059, Unknown=0, NotChecked=0, Total=1190 [2020-12-23 01:21:19,614 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 35 states. [2020-12-23 01:21:20,879 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2020-12-23 01:21:21,588 WARN L197 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2020-12-23 01:21:22,153 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-12-23 01:21:22,919 WARN L197 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-12-23 01:21:24,037 WARN L197 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-12-23 01:21:27,348 WARN L197 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 76 [2020-12-23 01:21:28,145 WARN L197 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 78 [2020-12-23 01:21:30,971 WARN L197 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 82 [2020-12-23 01:21:34,213 WARN L197 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 101 [2020-12-23 01:21:35,112 WARN L197 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 99 [2020-12-23 01:21:36,022 WARN L197 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 98 [2020-12-23 01:21:37,243 WARN L197 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 99 [2020-12-23 01:21:38,221 WARN L197 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2020-12-23 01:21:38,956 WARN L197 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 101 [2020-12-23 01:21:40,675 WARN L197 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 107 [2020-12-23 01:21:41,644 WARN L197 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 108 [2020-12-23 01:21:42,827 WARN L197 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 101 [2020-12-23 01:21:43,959 WARN L197 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 101 [2020-12-23 01:21:45,231 WARN L197 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 101 [2020-12-23 01:21:46,476 WARN L197 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 101 [2020-12-23 01:21:47,644 WARN L197 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 101 [2020-12-23 01:21:48,728 WARN L197 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 100 [2020-12-23 01:21:49,882 WARN L197 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 99 [2020-12-23 01:21:49,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:21:49,979 INFO L93 Difference]: Finished difference Result 94 states and 98 transitions. [2020-12-23 01:21:49,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-12-23 01:21:49,981 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 52 [2020-12-23 01:21:49,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:21:49,982 INFO L225 Difference]: With dead ends: 94 [2020-12-23 01:21:49,982 INFO L226 Difference]: Without dead ends: 67 [2020-12-23 01:21:49,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 768 ImplicationChecksByTransitivity, 29.9s TimeCoverageRelationStatistics Valid=497, Invalid=2924, Unknown=1, NotChecked=0, Total=3422 [2020-12-23 01:21:49,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-12-23 01:21:50,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2020-12-23 01:21:50,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-12-23 01:21:50,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2020-12-23 01:21:50,008 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 52 [2020-12-23 01:21:50,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:21:50,008 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2020-12-23 01:21:50,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-12-23 01:21:50,009 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2020-12-23 01:21:50,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 01:21:50,009 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:21:50,009 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:21:50,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-23 01:21:50,218 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:21:50,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:21:50,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1862588118, now seen corresponding path program 16 times [2020-12-23 01:21:50,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:21:50,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481055941] [2020-12-23 01:21:50,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:21:50,238 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:21:50,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [483602446] [2020-12-23 01:21:50,239 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:21:50,303 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 01:21:50,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:21:50,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 01:21:50,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:21:50,739 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-23 01:21:50,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481055941] [2020-12-23 01:21:50,739 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:21:50,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483602446] [2020-12-23 01:21:50,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:21:50,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-12-23 01:21:50,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948927647] [2020-12-23 01:21:50,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-23 01:21:50,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:21:50,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-23 01:21:50,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-12-23 01:21:50,741 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 15 states. [2020-12-23 01:21:51,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:21:51,464 INFO L93 Difference]: Finished difference Result 131 states and 136 transitions. [2020-12-23 01:21:51,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-23 01:21:51,466 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2020-12-23 01:21:51,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:21:51,467 INFO L225 Difference]: With dead ends: 131 [2020-12-23 01:21:51,467 INFO L226 Difference]: Without dead ends: 92 [2020-12-23 01:21:51,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2020-12-23 01:21:51,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-12-23 01:21:51,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 55. [2020-12-23 01:21:51,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-12-23 01:21:51,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-12-23 01:21:51,487 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 54 [2020-12-23 01:21:51,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:21:51,487 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-12-23 01:21:51,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-23 01:21:51,488 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-12-23 01:21:51,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 01:21:51,488 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:21:51,488 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:21:51,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:21:51,703 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:21:51,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:21:51,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1228478698, now seen corresponding path program 17 times [2020-12-23 01:21:51,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:21:51,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833052888] [2020-12-23 01:21:51,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:21:51,727 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:21:51,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660042010] [2020-12-23 01:21:51,728 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:21:52,086 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2020-12-23 01:21:52,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:21:52,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 01:21:52,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:21:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-23 01:21:52,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833052888] [2020-12-23 01:21:52,506 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:21:52,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660042010] [2020-12-23 01:21:52,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:21:52,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-12-23 01:21:52,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541069742] [2020-12-23 01:21:52,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-23 01:21:52,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:21:52,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-23 01:21:52,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-12-23 01:21:52,508 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 15 states. [2020-12-23 01:21:53,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:21:53,179 INFO L93 Difference]: Finished difference Result 91 states and 94 transitions. [2020-12-23 01:21:53,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-23 01:21:53,181 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2020-12-23 01:21:53,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:21:53,182 INFO L225 Difference]: With dead ends: 91 [2020-12-23 01:21:53,182 INFO L226 Difference]: Without dead ends: 66 [2020-12-23 01:21:53,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 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 01:21:53,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-23 01:21:53,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2020-12-23 01:21:53,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-23 01:21:53,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2020-12-23 01:21:53,200 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 54 [2020-12-23 01:21:53,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:21:53,201 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2020-12-23 01:21:53,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-23 01:21:53,201 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2020-12-23 01:21:53,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-23 01:21:53,201 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:21:53,201 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:21:53,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-23 01:21:53,405 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:21:53,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:21:53,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1307867604, now seen corresponding path program 18 times [2020-12-23 01:21:53,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:21:53,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887727395] [2020-12-23 01:21:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:21:53,419 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:21:53,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728181049] [2020-12-23 01:21:53,420 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:21:53,819 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2020-12-23 01:21:53,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:21:53,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 86 conjunts are in the unsatisfiable core [2020-12-23 01:21:53,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:21:53,854 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 01:21:53,858 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:53,884 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:21:53,892 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-23 01:21:53,894 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:53,939 INFO L625 ElimStorePlain]: treesize reduction 4, result has 85.7 percent of original size [2020-12-23 01:21:53,940 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:21:53,940 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:24 [2020-12-23 01:21:53,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:53,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:53,988 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:54,028 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2020-12-23 01:21:54,029 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 57 [2020-12-23 01:21:54,031 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:54,099 INFO L625 ElimStorePlain]: treesize reduction 16, result has 68.6 percent of original size [2020-12-23 01:21:54,101 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:21:54,101 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:35 [2020-12-23 01:21:54,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,215 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:21:54,216 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 57 [2020-12-23 01:21:54,218 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:54,302 INFO L625 ElimStorePlain]: treesize reduction 16, result has 78.1 percent of original size [2020-12-23 01:21:54,304 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:21:54,304 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:57 [2020-12-23 01:21:54,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,442 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:54,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,464 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:21:54,464 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 83 [2020-12-23 01:21:54,468 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:54,570 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-12-23 01:21:54,571 INFO L625 ElimStorePlain]: treesize reduction 26, result has 73.7 percent of original size [2020-12-23 01:21:54,572 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:21:54,572 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:73 [2020-12-23 01:21:54,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:54,757 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:54,770 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:21:54,770 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 15 case distinctions, treesize of input 84 treesize of output 97 [2020-12-23 01:21:54,773 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:54,873 INFO L625 ElimStorePlain]: treesize reduction 21, result has 81.3 percent of original size [2020-12-23 01:21:54,874 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:21:54,875 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:91 [2020-12-23 01:21:55,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,100 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:21:55,101 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 96 treesize of output 94 [2020-12-23 01:21:55,104 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:55,198 INFO L625 ElimStorePlain]: treesize reduction 4, result has 94.3 percent of original size [2020-12-23 01:21:55,200 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:21:55,200 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:102, output treesize:66 [2020-12-23 01:21:55,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:55,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:56,193 WARN L197 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 88 [2020-12-23 01:21:56,194 INFO L348 Elim1Store]: treesize reduction 146, result has 67.3 percent of original size [2020-12-23 01:21:56,194 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 86 treesize of output 334 [2020-12-23 01:21:56,201 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:56,484 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2020-12-23 01:21:56,486 INFO L625 ElimStorePlain]: treesize reduction 172, result has 36.3 percent of original size [2020-12-23 01:21:56,488 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:21:56,488 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:92, output treesize:98 [2020-12-23 01:21:56,665 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:21:57,216 WARN L197 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2020-12-23 01:21:57,222 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:21:57,605 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-23 01:21:59,007 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-12-23 01:21:59,015 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:21:59,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,101 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:59,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,108 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:59,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,261 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:59,277 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:59,316 INFO L244 Elim1Store]: Index analysis took 284 ms [2020-12-23 01:21:59,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:21:59,326 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:21:59,783 WARN L197 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-23 01:21:59,784 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:21:59,785 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 17 disjoint index pairs (out of 55 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 117 treesize of output 440 [2020-12-23 01:21:59,791 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[14, 3, 2, 1] term [2020-12-23 01:21:59,792 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 01:21:59,792 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[13, 3, 2, 1] term [2020-12-23 01:21:59,792 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 01:21:59,793 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2020-12-23 01:21:59,793 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 01:21:59,794 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2020-12-23 01:21:59,794 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 01:21:59,795 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 3, 2, 1] term [2020-12-23 01:21:59,795 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:21:59,796 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-23 01:21:59,796 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:21:59,796 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 01:21:59,796 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:21:59,797 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 01:21:59,797 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:21:59,797 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 01:21:59,798 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:21:59,798 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-12-23 01:21:59,798 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:21:59,798 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 2, 1] term [2020-12-23 01:21:59,798 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:21:59,799 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 2, 1] term [2020-12-23 01:21:59,799 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:21:59,800 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 1] term [2020-12-23 01:21:59,800 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:21:59,823 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:21:59,834 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:21:59,840 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:22:00,660 WARN L197 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 60 [2020-12-23 01:22:00,661 INFO L625 ElimStorePlain]: treesize reduction 1199, result has 11.1 percent of original size [2020-12-23 01:22:00,664 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 01:22:00,664 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:257, output treesize:150 [2020-12-23 01:22:00,883 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-12-23 01:22:01,146 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-23 01:22:01,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,167 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:22:01,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,261 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:22:01,262 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:22:01,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:22:01,265 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:22:01,270 INFO L190 IndexEqualityManager]: detected not equals via solver