/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-patterns/array22_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 01:02:19,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 01:02:19,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 01:02:19,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 01:02:19,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 01:02:19,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 01:02:19,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 01:02:19,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 01:02:19,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 01:02:19,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 01:02:19,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 01:02:19,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 01:02:19,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 01:02:19,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 01:02:19,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 01:02:19,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 01:02:19,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 01:02:19,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 01:02:19,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 01:02:19,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 01:02:19,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 01:02:19,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 01:02:19,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 01:02:19,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 01:02:19,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 01:02:19,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 01:02:19,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 01:02:19,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 01:02:19,801 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 01:02:19,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 01:02:19,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 01:02:19,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 01:02:19,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 01:02:19,845 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 01:02:19,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 01:02:19,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 01:02:19,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 01:02:19,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 01:02:19,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 01:02:19,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 01:02:19,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 01:02:19,850 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 01:02:19,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 01:02:19,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 01:02:19,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 01:02:19,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 01:02:19,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 01:02:19,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 01:02:19,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 01:02:19,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 01:02:19,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 01:02:19,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 01:02:19,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 01:02:19,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 01:02:19,856 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 01:02:20,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 01:02:20,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 01:02:20,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 01:02:20,353 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 01:02:20,354 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 01:02:20,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array22_pattern.c [2020-12-23 01:02:20,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/45527e092/d865419769474b13a8a442ed0f1599ed/FLAG2d508e0cf [2020-12-23 01:02:21,088 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 01:02:21,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-patterns/array22_pattern.c [2020-12-23 01:02:21,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/45527e092/d865419769474b13a8a442ed0f1599ed/FLAG2d508e0cf [2020-12-23 01:02:21,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/45527e092/d865419769474b13a8a442ed0f1599ed [2020-12-23 01:02:21,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 01:02:21,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 01:02:21,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 01:02:21,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 01:02:21,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 01:02:21,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:02:21" (1/1) ... [2020-12-23 01:02:21,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a3968b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21, skipping insertion in model container [2020-12-23 01:02:21,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:02:21" (1/1) ... [2020-12-23 01:02:21,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 01:02:21,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 01:02:21,703 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-patterns/array22_pattern.c[1347,1360] left hand side expression in assignment: lhs: VariableLHS[~ARR_SIZE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: lhs: ArrayLHS[ArrayLHS[VariableLHS[~array~0,],[IdentifierExpression[~row~0,]]],[IdentifierExpression[~column~0,]]] left hand side expression in assignment: lhs: VariableLHS[~index1~0,] left hand side expression in assignment: lhs: VariableLHS[~index2~0,] left hand side expression in assignment: lhs: ArrayLHS[ArrayLHS[VariableLHS[~array~0,],[IdentifierExpression[~index1~0,]]],[IdentifierExpression[~index2~0,]]] left hand side expression in assignment: lhs: ArrayLHS[ArrayLHS[VariableLHS[~array~0,],[IdentifierExpression[~index1~0,]]],[BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IdentifierExpression[~ARR_SIZE~0,GLOBAL],IntegerLiteral[1]],IdentifierExpression[~index2~0,]]]] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: lhs: VariableLHS[~sum~0,] [2020-12-23 01:02:21,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:02:21,794 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 01:02:21,814 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-patterns/array22_pattern.c[1347,1360] left hand side expression in assignment: lhs: VariableLHS[~ARR_SIZE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,],base],BinaryExpression[ARITHPLUS,BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,],offset],BinaryExpression[ARITHMUL,IdentifierExpression[~row~0,],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~ARR_SIZE~0,GLOBAL]]]],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~column~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~index1~0,] left hand side expression in assignment: lhs: VariableLHS[~index2~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,],base],BinaryExpression[ARITHPLUS,BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,],offset],BinaryExpression[ARITHMUL,IdentifierExpression[~index1~0,],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~ARR_SIZE~0,GLOBAL]]]],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~index2~0,]]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,],base],BinaryExpression[ARITHPLUS,BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,],offset],BinaryExpression[ARITHMUL,IdentifierExpression[~index1~0,],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~ARR_SIZE~0,GLOBAL]]]],BinaryExpression[ARITHMUL,IntegerLiteral[4],BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IdentifierExpression[~ARR_SIZE~0,GLOBAL],IntegerLiteral[1]],IdentifierExpression[~index2~0,]]]]]] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: lhs: VariableLHS[~sum~0,] [2020-12-23 01:02:21,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:02:21,886 INFO L208 MainTranslator]: Completed translation [2020-12-23 01:02:21,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21 WrapperNode [2020-12-23 01:02:21,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 01:02:21,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 01:02:21,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 01:02:21,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 01:02:21,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21" (1/1) ... [2020-12-23 01:02:21,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21" (1/1) ... [2020-12-23 01:02:21,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 01:02:21,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 01:02:21,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 01:02:21,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 01:02:21,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21" (1/1) ... [2020-12-23 01:02:21,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21" (1/1) ... [2020-12-23 01:02:21,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21" (1/1) ... [2020-12-23 01:02:21,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21" (1/1) ... [2020-12-23 01:02:21,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21" (1/1) ... [2020-12-23 01:02:21,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21" (1/1) ... [2020-12-23 01:02:21,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21" (1/1) ... [2020-12-23 01:02:21,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 01:02:21,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 01:02:21,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 01:02:21,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 01:02:21,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21" (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 01:02:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 01:02:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 01:02:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 01:02:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 01:02:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 01:02:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 01:02:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 01:02:22,604 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 01:02:22,605 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2020-12-23 01:02:22,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:02:22 BoogieIcfgContainer [2020-12-23 01:02:22,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 01:02:22,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 01:02:22,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 01:02:22,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 01:02:22,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:02:21" (1/3) ... [2020-12-23 01:02:22,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd0af42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:02:22, skipping insertion in model container [2020-12-23 01:02:22,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:21" (2/3) ... [2020-12-23 01:02:22,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd0af42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:02:22, skipping insertion in model container [2020-12-23 01:02:22,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:02:22" (3/3) ... [2020-12-23 01:02:22,617 INFO L111 eAbstractionObserver]: Analyzing ICFG array22_pattern.c [2020-12-23 01:02:22,624 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 01:02:22,630 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 01:02:22,658 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 01:02:22,707 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 01:02:22,709 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 01:02:22,709 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 01:02:22,709 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 01:02:22,709 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 01:02:22,710 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 01:02:22,710 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 01:02:22,710 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 01:02:22,731 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-12-23 01:02:22,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 01:02:22,738 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:22,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:22,739 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:22,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:22,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1748886715, now seen corresponding path program 1 times [2020-12-23 01:02:22,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:22,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569131077] [2020-12-23 01:02:22,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:22,989 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 01:02:22,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569131077] [2020-12-23 01:02:22,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:02:22,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 01:02:22,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238396276] [2020-12-23 01:02:22,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 01:02:23,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:23,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 01:02:23,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 01:02:23,023 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2020-12-23 01:02:23,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:23,052 INFO L93 Difference]: Finished difference Result 67 states and 102 transitions. [2020-12-23 01:02:23,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 01:02:23,054 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-23 01:02:23,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:23,066 INFO L225 Difference]: With dead ends: 67 [2020-12-23 01:02:23,066 INFO L226 Difference]: Without dead ends: 31 [2020-12-23 01:02:23,071 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 01:02:23,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-23 01:02:23,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-23 01:02:23,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-23 01:02:23,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2020-12-23 01:02:23,122 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 11 [2020-12-23 01:02:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:23,123 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2020-12-23 01:02:23,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 01:02:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2020-12-23 01:02:23,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-23 01:02:23,126 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:23,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:23,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 01:02:23,128 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:23,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:23,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1811974448, now seen corresponding path program 1 times [2020-12-23 01:02:23,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:23,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472549106] [2020-12-23 01:02:23,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:23,172 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:23,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1271977139] [2020-12-23 01:02:23,173 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 01:02:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:23,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 01:02:23,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:23,462 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 01:02:23,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472549106] [2020-12-23 01:02:23,463 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:23,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271977139] [2020-12-23 01:02:23,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:02:23,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 01:02:23,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72535621] [2020-12-23 01:02:23,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 01:02:23,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:23,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 01:02:23,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:02:23,468 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand 5 states. [2020-12-23 01:02:23,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:23,723 INFO L93 Difference]: Finished difference Result 63 states and 81 transitions. [2020-12-23 01:02:23,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 01:02:23,724 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-23 01:02:23,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:23,725 INFO L225 Difference]: With dead ends: 63 [2020-12-23 01:02:23,725 INFO L226 Difference]: Without dead ends: 40 [2020-12-23 01:02:23,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 01:02:23,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-23 01:02:23,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2020-12-23 01:02:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-23 01:02:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2020-12-23 01:02:23,735 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 24 [2020-12-23 01:02:23,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:23,736 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2020-12-23 01:02:23,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 01:02:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2020-12-23 01:02:23,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-23 01:02:23,737 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:23,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:23,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-23 01:02:23,951 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:23,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:23,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1100083622, now seen corresponding path program 1 times [2020-12-23 01:02:23,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:23,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356188772] [2020-12-23 01:02:23,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:23,969 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:23,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122449608] [2020-12-23 01:02:23,969 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 01:02:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:24,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 01:02:24,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:24,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 01:02:24,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356188772] [2020-12-23 01:02:24,253 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:24,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122449608] [2020-12-23 01:02:24,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:02:24,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 01:02:24,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107002069] [2020-12-23 01:02:24,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 01:02:24,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:24,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 01:02:24,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:02:24,262 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand 4 states. [2020-12-23 01:02:24,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:24,453 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2020-12-23 01:02:24,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 01:02:24,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-12-23 01:02:24,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:24,455 INFO L225 Difference]: With dead ends: 65 [2020-12-23 01:02:24,455 INFO L226 Difference]: Without dead ends: 37 [2020-12-23 01:02:24,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:02:24,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-23 01:02:24,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-12-23 01:02:24,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-23 01:02:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2020-12-23 01:02:24,463 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 30 [2020-12-23 01:02:24,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:24,464 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2020-12-23 01:02:24,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 01:02:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2020-12-23 01:02:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-23 01:02:24,465 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:24,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:24,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:24,682 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:24,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:24,684 INFO L82 PathProgramCache]: Analyzing trace with hash 418919962, now seen corresponding path program 1 times [2020-12-23 01:02:24,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:24,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764863533] [2020-12-23 01:02:24,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:24,714 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:24,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1617103428] [2020-12-23 01:02:24,715 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 01:02:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:24,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:02:24,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:24,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 01:02:24,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764863533] [2020-12-23 01:02:24,982 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:24,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617103428] [2020-12-23 01:02:24,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:24,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 01:02:24,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687346408] [2020-12-23 01:02:24,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 01:02:24,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:24,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 01:02:24,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 01:02:24,985 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand 6 states. [2020-12-23 01:02:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:25,254 INFO L93 Difference]: Finished difference Result 72 states and 90 transitions. [2020-12-23 01:02:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 01:02:25,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-12-23 01:02:25,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:25,255 INFO L225 Difference]: With dead ends: 72 [2020-12-23 01:02:25,255 INFO L226 Difference]: Without dead ends: 42 [2020-12-23 01:02:25,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:25,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-23 01:02:25,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2020-12-23 01:02:25,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-23 01:02:25,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2020-12-23 01:02:25,264 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 34 [2020-12-23 01:02:25,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:25,264 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2020-12-23 01:02:25,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 01:02:25,265 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2020-12-23 01:02:25,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-23 01:02:25,266 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:25,266 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:25,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:25,473 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:25,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:25,474 INFO L82 PathProgramCache]: Analyzing trace with hash 842854106, now seen corresponding path program 2 times [2020-12-23 01:02:25,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:25,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437865039] [2020-12-23 01:02:25,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:25,488 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:25,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2008435886] [2020-12-23 01:02:25,488 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 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 01:02:25,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:02:25,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:25,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 01:02:25,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-23 01:02:25,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437865039] [2020-12-23 01:02:25,679 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:25,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008435886] [2020-12-23 01:02:25,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:25,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 01:02:25,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152420166] [2020-12-23 01:02:25,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 01:02:25,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:25,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 01:02:25,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-23 01:02:25,682 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 7 states. [2020-12-23 01:02:25,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:25,908 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-12-23 01:02:25,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:02:25,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-12-23 01:02:25,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:25,910 INFO L225 Difference]: With dead ends: 59 [2020-12-23 01:02:25,910 INFO L226 Difference]: Without dead ends: 55 [2020-12-23 01:02:25,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:02:25,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-12-23 01:02:25,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2020-12-23 01:02:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-23 01:02:25,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2020-12-23 01:02:25,920 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 38 [2020-12-23 01:02:25,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:25,920 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2020-12-23 01:02:25,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 01:02:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2020-12-23 01:02:25,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-23 01:02:25,922 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:25,922 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:26,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:26,136 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:26,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:26,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1234061981, now seen corresponding path program 3 times [2020-12-23 01:02:26,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:26,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939716809] [2020-12-23 01:02:26,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:26,151 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:26,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931573719] [2020-12-23 01:02:26,152 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 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 01:02:26,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 01:02:26,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:26,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:02:26,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-23 01:02:26,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939716809] [2020-12-23 01:02:26,335 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:26,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931573719] [2020-12-23 01:02:26,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:26,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 01:02:26,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075840610] [2020-12-23 01:02:26,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 01:02:26,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:26,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 01:02:26,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 01:02:26,338 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 6 states. [2020-12-23 01:02:26,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:26,514 INFO L93 Difference]: Finished difference Result 100 states and 120 transitions. [2020-12-23 01:02:26,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 01:02:26,516 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-12-23 01:02:26,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:26,521 INFO L225 Difference]: With dead ends: 100 [2020-12-23 01:02:26,521 INFO L226 Difference]: Without dead ends: 66 [2020-12-23 01:02:26,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:26,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-23 01:02:26,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 53. [2020-12-23 01:02:26,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-23 01:02:26,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2020-12-23 01:02:26,548 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 45 [2020-12-23 01:02:26,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:26,549 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2020-12-23 01:02:26,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 01:02:26,549 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2020-12-23 01:02:26,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 01:02:26,553 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:26,553 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:26,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-23 01:02:26,772 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:26,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:26,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1588184272, now seen corresponding path program 4 times [2020-12-23 01:02:26,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:26,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025698342] [2020-12-23 01:02:26,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:26,787 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:26,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30313607] [2020-12-23 01:02:26,788 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 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 01:02:27,007 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 01:02:27,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:27,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 78 conjunts are in the unsatisfiable core [2020-12-23 01:02:27,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:27,099 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2020-12-23 01:02:27,100 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:27,114 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:27,115 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:27,116 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2020-12-23 01:02:27,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:27,206 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2020-12-23 01:02:27,208 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:27,229 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:27,230 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:27,230 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:58, output treesize:54 [2020-12-23 01:02:27,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:27,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:27,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:27,426 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:27,427 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 54 [2020-12-23 01:02:27,430 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:27,457 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:27,460 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:27,460 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:75, output treesize:71 [2020-12-23 01:02:27,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:27,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:27,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:27,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:27,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:27,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:27,590 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:27,591 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 68 [2020-12-23 01:02:27,594 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:27,621 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:27,622 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:27,623 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:83, output treesize:79 [2020-12-23 01:02:28,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:28,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:28,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:28,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:28,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:28,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:28,477 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:28,478 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 10 case distinctions, treesize of input 62 treesize of output 247 [2020-12-23 01:02:28,491 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:28,664 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-12-23 01:02:28,665 INFO L625 ElimStorePlain]: treesize reduction 105, result has 57.3 percent of original size [2020-12-23 01:02:28,671 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:28,671 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:141 [2020-12-23 01:02:29,034 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,035 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,037 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,038 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,042 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,046 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,047 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,050 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,053 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,054 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,055 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,057 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,060 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,061 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:29,063 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,066 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,069 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,070 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,071 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,073 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,075 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,076 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,078 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:29,086 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,091 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,094 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,105 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,106 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,108 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,110 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,117 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,118 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,121 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,125 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,135 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,141 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,143 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,155 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,159 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,168 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,169 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,171 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,175 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,178 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,188 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,192 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,195 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,217 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,217 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,223 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,224 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,227 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,229 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,230 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,231 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,234 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,235 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,235 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,239 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,239 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:29,241 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,244 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,247 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,248 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,248 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,250 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,252 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,253 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,256 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,261 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,264 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,272 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,276 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,280 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,288 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,293 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,297 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,298 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,304 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,306 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,308 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,315 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,318 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,322 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,326 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,333 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,351 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,354 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,358 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,371 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,372 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,374 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,381 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,384 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,390 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,394 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,403 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,421 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,423 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,427 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,437 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,438 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,439 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,440 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,442 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,444 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:29,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,449 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,450 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,452 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,458 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,461 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,478 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,485 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,491 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,502 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,505 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,509 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,525 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,527 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:29,538 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,541 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:29,542 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,559 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,562 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,566 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,580 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:02:29,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,593 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,595 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,599 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:29,601 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:29,605 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,606 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,607 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:29,609 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:29,613 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,616 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,623 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:29,642 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:29,643 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:29,659 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,660 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,661 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,665 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,667 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,674 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,681 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:29,684 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,708 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:29,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,730 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,737 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:29,756 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,757 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,758 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,762 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,763 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,764 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,766 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,768 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,768 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,770 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,773 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,776 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,780 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,784 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,787 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,792 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,797 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:02:29,805 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,806 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,808 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,812 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,815 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,823 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,830 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:29,834 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,837 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,843 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:29,859 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:29,863 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:29,868 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:29,886 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,887 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,891 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,892 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,893 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,896 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,897 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,900 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,903 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:02:29,909 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,912 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:29,916 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:29,929 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,931 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:29,934 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:29,936 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:02:29,989 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:02:29,990 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:30,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,394 INFO L244 Elim1Store]: Index analysis took 387 ms [2020-12-23 01:02:30,581 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-23 01:02:30,582 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:30,582 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 80 treesize of output 371 [2020-12-23 01:02:30,599 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:30,611 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:02:30,612 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:30,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,647 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:02:30,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,752 INFO L244 Elim1Store]: Index analysis took 120 ms [2020-12-23 01:02:30,787 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 0 case distinctions, treesize of input 78 treesize of output 79 [2020-12-23 01:02:30,793 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:30,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,830 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:02:30,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,906 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 0 case distinctions, treesize of input 79 treesize of output 78 [2020-12-23 01:02:30,909 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:30,926 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:02:30,928 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:30,943 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:02:30,944 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:30,956 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:02:30,957 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:30,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:30,992 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:02:31,038 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 0 case distinctions, treesize of input 75 treesize of output 72 [2020-12-23 01:02:31,041 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:31,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:31,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:31,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:31,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:31,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:31,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:31,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:31,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:31,069 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:02:31,077 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 0 case distinctions, treesize of input 75 treesize of output 71 [2020-12-23 01:02:31,082 INFO L547 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:31,489 WARN L197 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 78 [2020-12-23 01:02:31,491 INFO L625 ElimStorePlain]: treesize reduction 356, result has 49.0 percent of original size [2020-12-23 01:02:31,502 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2020-12-23 01:02:31,502 INFO L244 ElimStorePlain]: Needed 11 recursive calls to eliminate 3 variables, input treesize:1034, output treesize:342 [2020-12-23 01:02:31,770 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-23 01:02:32,114 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 01:02:32,433 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-23 01:02:32,801 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 01:02:33,145 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 01:02:33,799 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 01:02:34,162 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-23 01:02:34,545 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 01:02:34,961 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 01:02:35,045 INFO L443 ElimStorePlain]: Different costs {12=[|#memory_int|, v_prenex_7], 28=[v_prenex_4, v_prenex_10]} [2020-12-23 01:02:35,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,070 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:35,071 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 82 treesize of output 20 [2020-12-23 01:02:35,073 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:35,196 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-12-23 01:02:35,197 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:35,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,239 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:35,239 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 83 treesize of output 102 [2020-12-23 01:02:35,242 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:35,438 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-12-23 01:02:35,439 INFO L625 ElimStorePlain]: treesize reduction 18, result has 92.7 percent of original size [2020-12-23 01:02:35,450 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:02:35,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,523 INFO L348 Elim1Store]: treesize reduction 56, result has 58.8 percent of original size [2020-12-23 01:02:35,524 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 76 treesize of output 99 [2020-12-23 01:02:35,528 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:35,715 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-12-23 01:02:35,721 INFO L625 ElimStorePlain]: treesize reduction 27, result has 86.1 percent of original size [2020-12-23 01:02:35,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,741 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:02:35,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:35,797 INFO L348 Elim1Store]: treesize reduction 24, result has 74.7 percent of original size [2020-12-23 01:02:35,798 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 77 treesize of output 90 [2020-12-23 01:02:35,809 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:35,935 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-12-23 01:02:35,937 INFO L625 ElimStorePlain]: treesize reduction 23, result has 82.2 percent of original size [2020-12-23 01:02:35,954 INFO L547 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:35,955 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 16 variables, input treesize:376, output treesize:3 [2020-12-23 01:02:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:02:36,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025698342] [2020-12-23 01:02:36,231 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:36,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30313607] [2020-12-23 01:02:36,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:36,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-12-23 01:02:36,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661565486] [2020-12-23 01:02:36,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-12-23 01:02:36,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:36,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-12-23 01:02:36,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1125, Unknown=0, NotChecked=0, Total=1260 [2020-12-23 01:02:36,234 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand 36 states. [2020-12-23 01:02:37,870 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-12-23 01:02:38,121 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2020-12-23 01:02:38,379 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-12-23 01:02:38,612 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-12-23 01:02:38,809 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2020-12-23 01:02:39,329 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-12-23 01:02:39,614 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-12-23 01:02:39,838 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2020-12-23 01:02:40,116 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2020-12-23 01:02:40,331 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-12-23 01:02:40,524 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-12-23 01:02:41,900 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-23 01:02:41,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:41,918 INFO L93 Difference]: Finished difference Result 167 states and 203 transitions. [2020-12-23 01:02:41,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-12-23 01:02:41,919 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 52 [2020-12-23 01:02:41,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:41,927 INFO L225 Difference]: With dead ends: 167 [2020-12-23 01:02:41,928 INFO L226 Difference]: Without dead ends: 131 [2020-12-23 01:02:41,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 892 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=340, Invalid=2522, Unknown=0, NotChecked=0, Total=2862 [2020-12-23 01:02:41,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-12-23 01:02:41,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 94. [2020-12-23 01:02:41,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-23 01:02:41,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 114 transitions. [2020-12-23 01:02:41,975 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 114 transitions. Word has length 52 [2020-12-23 01:02:41,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:41,975 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 114 transitions. [2020-12-23 01:02:41,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-12-23 01:02:41,976 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 114 transitions. [2020-12-23 01:02:41,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 01:02:41,980 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:41,980 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:42,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:42,195 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:42,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:42,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1369329554, now seen corresponding path program 1 times [2020-12-23 01:02:42,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:42,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992085019] [2020-12-23 01:02:42,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:42,224 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:42,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484039101] [2020-12-23 01:02:42,225 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 01:02:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:42,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 01:02:42,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-23 01:02:42,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992085019] [2020-12-23 01:02:42,377 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:42,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484039101] [2020-12-23 01:02:42,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:02:42,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 01:02:42,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075993313] [2020-12-23 01:02:42,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 01:02:42,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:42,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 01:02:42,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:02:42,379 INFO L87 Difference]: Start difference. First operand 94 states and 114 transitions. Second operand 4 states. [2020-12-23 01:02:42,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:42,444 INFO L93 Difference]: Finished difference Result 179 states and 215 transitions. [2020-12-23 01:02:42,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 01:02:42,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-12-23 01:02:42,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:42,446 INFO L225 Difference]: With dead ends: 179 [2020-12-23 01:02:42,447 INFO L226 Difference]: Without dead ends: 145 [2020-12-23 01:02:42,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:02:42,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-23 01:02:42,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 98. [2020-12-23 01:02:42,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-23 01:02:42,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 118 transitions. [2020-12-23 01:02:42,466 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 118 transitions. Word has length 52 [2020-12-23 01:02:42,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:42,466 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 118 transitions. [2020-12-23 01:02:42,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 01:02:42,466 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 118 transitions. [2020-12-23 01:02:42,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 01:02:42,467 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:42,467 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:42,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:42,683 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:42,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:42,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1503343060, now seen corresponding path program 1 times [2020-12-23 01:02:42,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:42,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747312283] [2020-12-23 01:02:42,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:42,698 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:42,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044694181] [2020-12-23 01:02:42,698 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 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 01:02:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:42,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 01:02:42,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-23 01:02:42,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747312283] [2020-12-23 01:02:42,841 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:42,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044694181] [2020-12-23 01:02:42,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:02:42,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 01:02:42,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447324963] [2020-12-23 01:02:42,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 01:02:42,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:42,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 01:02:42,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:02:42,847 INFO L87 Difference]: Start difference. First operand 98 states and 118 transitions. Second operand 5 states. [2020-12-23 01:02:42,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:42,996 INFO L93 Difference]: Finished difference Result 202 states and 242 transitions. [2020-12-23 01:02:42,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 01:02:42,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-12-23 01:02:42,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:42,999 INFO L225 Difference]: With dead ends: 202 [2020-12-23 01:02:42,999 INFO L226 Difference]: Without dead ends: 148 [2020-12-23 01:02:43,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 01:02:43,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-23 01:02:43,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 104. [2020-12-23 01:02:43,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-23 01:02:43,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 125 transitions. [2020-12-23 01:02:43,018 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 125 transitions. Word has length 52 [2020-12-23 01:02:43,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:43,018 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 125 transitions. [2020-12-23 01:02:43,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 01:02:43,019 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 125 transitions. [2020-12-23 01:02:43,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 01:02:43,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:43,020 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:43,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-23 01:02:43,235 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:43,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:43,235 INFO L82 PathProgramCache]: Analyzing trace with hash -2012816150, now seen corresponding path program 1 times [2020-12-23 01:02:43,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:43,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60930831] [2020-12-23 01:02:43,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:43,246 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:43,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1848758276] [2020-12-23 01:02:43,247 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 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 01:02:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:43,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 01:02:43,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:43,381 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-23 01:02:43,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60930831] [2020-12-23 01:02:43,381 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:43,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848758276] [2020-12-23 01:02:43,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:02:43,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 01:02:43,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690591728] [2020-12-23 01:02:43,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 01:02:43,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:43,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 01:02:43,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:02:43,384 INFO L87 Difference]: Start difference. First operand 104 states and 125 transitions. Second operand 4 states. [2020-12-23 01:02:43,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:43,432 INFO L93 Difference]: Finished difference Result 190 states and 225 transitions. [2020-12-23 01:02:43,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 01:02:43,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-12-23 01:02:43,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:43,434 INFO L225 Difference]: With dead ends: 190 [2020-12-23 01:02:43,434 INFO L226 Difference]: Without dead ends: 128 [2020-12-23 01:02:43,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:02:43,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-12-23 01:02:43,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 98. [2020-12-23 01:02:43,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-23 01:02:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 115 transitions. [2020-12-23 01:02:43,455 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 115 transitions. Word has length 52 [2020-12-23 01:02:43,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:43,455 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 115 transitions. [2020-12-23 01:02:43,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 01:02:43,455 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 115 transitions. [2020-12-23 01:02:43,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 01:02:43,456 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:43,456 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:43,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:43,671 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:43,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:43,672 INFO L82 PathProgramCache]: Analyzing trace with hash -2035617748, now seen corresponding path program 1 times [2020-12-23 01:02:43,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:43,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633718512] [2020-12-23 01:02:43,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:43,682 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:43,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398127190] [2020-12-23 01:02:43,683 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 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 01:02:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:43,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 01:02:43,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-23 01:02:43,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633718512] [2020-12-23 01:02:43,829 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:43,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398127190] [2020-12-23 01:02:43,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:02:43,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 01:02:43,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055028258] [2020-12-23 01:02:43,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 01:02:43,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:43,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 01:02:43,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:02:43,831 INFO L87 Difference]: Start difference. First operand 98 states and 115 transitions. Second operand 5 states. [2020-12-23 01:02:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:43,961 INFO L93 Difference]: Finished difference Result 166 states and 193 transitions. [2020-12-23 01:02:43,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 01:02:43,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-12-23 01:02:43,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:43,963 INFO L225 Difference]: With dead ends: 166 [2020-12-23 01:02:43,963 INFO L226 Difference]: Without dead ends: 126 [2020-12-23 01:02:43,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 01:02:43,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-12-23 01:02:43,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 98. [2020-12-23 01:02:43,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-23 01:02:43,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 114 transitions. [2020-12-23 01:02:43,979 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 114 transitions. Word has length 52 [2020-12-23 01:02:43,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:43,979 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 114 transitions. [2020-12-23 01:02:43,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 01:02:43,979 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 114 transitions. [2020-12-23 01:02:43,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 01:02:43,980 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:43,980 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:44,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:44,196 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:44,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:44,197 INFO L82 PathProgramCache]: Analyzing trace with hash 2125336042, now seen corresponding path program 1 times [2020-12-23 01:02:44,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:44,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269767589] [2020-12-23 01:02:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:44,212 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:44,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284158223] [2020-12-23 01:02:44,212 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 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 01:02:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:44,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 01:02:44,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:44,328 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-23 01:02:44,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269767589] [2020-12-23 01:02:44,329 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:44,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284158223] [2020-12-23 01:02:44,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:02:44,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 01:02:44,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646844369] [2020-12-23 01:02:44,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 01:02:44,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:44,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 01:02:44,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:02:44,331 INFO L87 Difference]: Start difference. First operand 98 states and 114 transitions. Second operand 4 states. [2020-12-23 01:02:44,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:44,380 INFO L93 Difference]: Finished difference Result 165 states and 190 transitions. [2020-12-23 01:02:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 01:02:44,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-12-23 01:02:44,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:44,381 INFO L225 Difference]: With dead ends: 165 [2020-12-23 01:02:44,381 INFO L226 Difference]: Without dead ends: 125 [2020-12-23 01:02:44,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:02:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-12-23 01:02:44,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 98. [2020-12-23 01:02:44,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-23 01:02:44,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2020-12-23 01:02:44,399 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 52 [2020-12-23 01:02:44,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:44,399 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2020-12-23 01:02:44,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 01:02:44,399 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2020-12-23 01:02:44,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 01:02:44,400 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:44,400 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:44,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-23 01:02:44,616 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:44,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:44,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1950776536, now seen corresponding path program 1 times [2020-12-23 01:02:44,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:44,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945024012] [2020-12-23 01:02:44,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:44,633 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:44,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69444637] [2020-12-23 01:02:44,634 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 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 01:02:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:44,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-23 01:02:44,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:44,846 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-23 01:02:44,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945024012] [2020-12-23 01:02:44,846 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:44,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69444637] [2020-12-23 01:02:44,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:44,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:02:44,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586566488] [2020-12-23 01:02:44,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:02:44,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:44,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:02:44,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:44,849 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand 9 states. [2020-12-23 01:02:45,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:45,413 INFO L93 Difference]: Finished difference Result 207 states and 238 transitions. [2020-12-23 01:02:45,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 01:02:45,414 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2020-12-23 01:02:45,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:45,415 INFO L225 Difference]: With dead ends: 207 [2020-12-23 01:02:45,415 INFO L226 Difference]: Without dead ends: 167 [2020-12-23 01:02:45,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2020-12-23 01:02:45,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-12-23 01:02:45,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 121. [2020-12-23 01:02:45,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-12-23 01:02:45,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 140 transitions. [2020-12-23 01:02:45,441 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 140 transitions. Word has length 52 [2020-12-23 01:02:45,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:45,441 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 140 transitions. [2020-12-23 01:02:45,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:02:45,442 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 140 transitions. [2020-12-23 01:02:45,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 01:02:45,442 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:45,442 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:45,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-23 01:02:45,659 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:45,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:45,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1371436334, now seen corresponding path program 5 times [2020-12-23 01:02:45,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:45,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073848120] [2020-12-23 01:02:45,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:45,669 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:45,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117160238] [2020-12-23 01:02:45,669 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 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 01:02:45,741 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-12-23 01:02:45,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:45,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:02:45,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-23 01:02:45,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073848120] [2020-12-23 01:02:45,863 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:45,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117160238] [2020-12-23 01:02:45,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:45,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:02:45,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976938377] [2020-12-23 01:02:45,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:02:45,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:45,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:02:45,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:45,869 INFO L87 Difference]: Start difference. First operand 121 states and 140 transitions. Second operand 9 states. [2020-12-23 01:02:46,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:46,114 INFO L93 Difference]: Finished difference Result 251 states and 288 transitions. [2020-12-23 01:02:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:02:46,115 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-12-23 01:02:46,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:46,116 INFO L225 Difference]: With dead ends: 251 [2020-12-23 01:02:46,116 INFO L226 Difference]: Without dead ends: 175 [2020-12-23 01:02:46,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:02:46,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-12-23 01:02:46,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 135. [2020-12-23 01:02:46,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-23 01:02:46,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 153 transitions. [2020-12-23 01:02:46,140 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 153 transitions. Word has length 54 [2020-12-23 01:02:46,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:46,141 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 153 transitions. [2020-12-23 01:02:46,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:02:46,141 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 153 transitions. [2020-12-23 01:02:46,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 01:02:46,142 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:46,142 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:46,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 01:02:46,357 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:46,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:46,357 INFO L82 PathProgramCache]: Analyzing trace with hash 482589390, now seen corresponding path program 6 times [2020-12-23 01:02:46,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:46,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004627981] [2020-12-23 01:02:46,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:46,366 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:46,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124426434] [2020-12-23 01:02:46,366 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 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 01:02:46,575 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2020-12-23 01:02:46,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:46,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:02:46,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-23 01:02:46,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004627981] [2020-12-23 01:02:46,693 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:46,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124426434] [2020-12-23 01:02:46,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:46,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:02:46,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829396978] [2020-12-23 01:02:46,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:02:46,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:46,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:02:46,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:46,694 INFO L87 Difference]: Start difference. First operand 135 states and 153 transitions. Second operand 9 states. [2020-12-23 01:02:47,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:47,087 INFO L93 Difference]: Finished difference Result 203 states and 228 transitions. [2020-12-23 01:02:47,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-23 01:02:47,087 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-12-23 01:02:47,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:47,089 INFO L225 Difference]: With dead ends: 203 [2020-12-23 01:02:47,089 INFO L226 Difference]: Without dead ends: 199 [2020-12-23 01:02:47,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=150, Invalid=270, Unknown=0, NotChecked=0, Total=420 [2020-12-23 01:02:47,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-12-23 01:02:47,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 158. [2020-12-23 01:02:47,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-12-23 01:02:47,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 180 transitions. [2020-12-23 01:02:47,119 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 180 transitions. Word has length 54 [2020-12-23 01:02:47,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:47,120 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 180 transitions. [2020-12-23 01:02:47,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:02:47,120 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 180 transitions. [2020-12-23 01:02:47,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 01:02:47,121 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:47,121 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:47,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:47,337 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:47,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:47,338 INFO L82 PathProgramCache]: Analyzing trace with hash -2010121139, now seen corresponding path program 7 times [2020-12-23 01:02:47,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:47,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364546436] [2020-12-23 01:02:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:47,348 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:47,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061161631] [2020-12-23 01:02:47,348 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 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 01:02:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:47,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:02:47,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:47,543 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 50 proven. 17 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 01:02:47,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364546436] [2020-12-23 01:02:47,544 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:47,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061161631] [2020-12-23 01:02:47,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:47,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:02:47,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406731108] [2020-12-23 01:02:47,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:02:47,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:47,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:02:47,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:47,547 INFO L87 Difference]: Start difference. First operand 158 states and 180 transitions. Second operand 9 states. [2020-12-23 01:02:47,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:47,885 INFO L93 Difference]: Finished difference Result 206 states and 227 transitions. [2020-12-23 01:02:47,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 01:02:47,885 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 59 [2020-12-23 01:02:47,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:47,887 INFO L225 Difference]: With dead ends: 206 [2020-12-23 01:02:47,887 INFO L226 Difference]: Without dead ends: 158 [2020-12-23 01:02:47,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-12-23 01:02:47,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-12-23 01:02:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 145. [2020-12-23 01:02:47,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-12-23 01:02:47,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 162 transitions. [2020-12-23 01:02:47,911 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 162 transitions. Word has length 59 [2020-12-23 01:02:47,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:47,912 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 162 transitions. [2020-12-23 01:02:47,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:02:47,912 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 162 transitions. [2020-12-23 01:02:47,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 01:02:47,913 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:47,913 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:48,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-23 01:02:48,124 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:48,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:48,125 INFO L82 PathProgramCache]: Analyzing trace with hash 724997453, now seen corresponding path program 8 times [2020-12-23 01:02:48,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:48,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776206782] [2020-12-23 01:02:48,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:48,134 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:48,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648067450] [2020-12-23 01:02:48,134 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 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 01:02:48,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:02:48,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:48,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:02:48,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-12-23 01:02:48,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776206782] [2020-12-23 01:02:48,332 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:48,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648067450] [2020-12-23 01:02:48,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:48,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:02:48,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050450381] [2020-12-23 01:02:48,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:02:48,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:48,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:02:48,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:48,334 INFO L87 Difference]: Start difference. First operand 145 states and 162 transitions. Second operand 9 states. [2020-12-23 01:02:48,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:48,506 INFO L93 Difference]: Finished difference Result 247 states and 279 transitions. [2020-12-23 01:02:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 01:02:48,507 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-12-23 01:02:48,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:48,508 INFO L225 Difference]: With dead ends: 247 [2020-12-23 01:02:48,509 INFO L226 Difference]: Without dead ends: 178 [2020-12-23 01:02:48,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:02:48,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-23 01:02:48,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2020-12-23 01:02:48,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-23 01:02:48,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 172 transitions. [2020-12-23 01:02:48,536 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 172 transitions. Word has length 63 [2020-12-23 01:02:48,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:48,536 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 172 transitions. [2020-12-23 01:02:48,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:02:48,536 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 172 transitions. [2020-12-23 01:02:48,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-23 01:02:48,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:48,537 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:48,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-23 01:02:48,751 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:48,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:48,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1008526827, now seen corresponding path program 1 times [2020-12-23 01:02:48,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:48,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908297073] [2020-12-23 01:02:48,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:48,761 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:48,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077674173] [2020-12-23 01:02:48,762 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 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 01:02:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:49,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 110 conjunts are in the unsatisfiable core [2020-12-23 01:02:49,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:49,243 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2020-12-23 01:02:49,244 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:49,259 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:49,260 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:49,261 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2020-12-23 01:02:49,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:49,340 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2020-12-23 01:02:49,342 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:49,383 INFO L625 ElimStorePlain]: treesize reduction 3, result has 94.3 percent of original size [2020-12-23 01:02:49,384 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:49,385 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:57, output treesize:50 [2020-12-23 01:02:49,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:49,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:49,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:49,594 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:49,595 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2020-12-23 01:02:49,596 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:49,624 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:49,625 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:49,625 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:60, output treesize:56 [2020-12-23 01:02:49,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:49,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:49,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:49,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:49,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:49,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:49,755 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:49,755 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 49 [2020-12-23 01:02:49,757 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:49,779 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:49,780 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:49,781 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:61, output treesize:57 [2020-12-23 01:02:50,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:50,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:50,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:50,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:50,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:50,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:50,396 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:50,396 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 10 case distinctions, treesize of input 62 treesize of output 247 [2020-12-23 01:02:50,402 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:50,616 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-12-23 01:02:50,616 INFO L625 ElimStorePlain]: treesize reduction 105, result has 57.3 percent of original size [2020-12-23 01:02:50,619 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:50,620 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:141 [2020-12-23 01:02:50,962 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:50,963 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,964 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,964 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,966 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:50,967 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:50,968 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:50,969 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:50,971 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:50,971 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,972 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:50,973 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,975 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:50,975 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:50,977 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,978 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:50,980 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,981 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:50,981 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:50,982 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:50,984 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,984 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:50,985 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,988 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:50,989 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:50,990 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,992 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:50,993 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,994 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:50,995 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:50,996 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:50,997 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:50,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,000 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,001 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,004 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,005 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,006 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,007 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,011 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,013 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,014 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,018 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,019 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,020 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,022 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,023 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,024 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,024 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,025 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,027 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,027 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,028 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:51,030 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,030 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,031 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,032 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,033 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,034 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,035 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,037 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,038 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,039 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,039 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,040 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,042 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,042 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,043 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:51,045 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,046 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,047 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,048 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:51,049 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,052 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,054 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,061 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:51,062 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,068 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,068 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,070 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,071 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,072 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,075 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,077 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,078 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,080 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,081 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,088 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,090 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,093 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,101 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,102 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,104 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,104 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,106 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,107 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,108 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,109 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,112 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,114 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,115 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,117 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,121 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,121 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,123 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,124 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,125 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,127 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,129 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,131 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,133 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,134 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,140 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,142 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,143 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,148 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,149 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,150 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,152 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,153 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,155 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,157 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,159 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,161 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,163 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,170 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,178 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,180 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,185 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:02:51,188 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,189 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,189 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,193 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,194 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,195 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,196 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,197 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,198 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,199 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,201 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,201 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,202 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,207 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,209 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,212 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,214 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:02:51,219 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,220 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,221 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,223 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,225 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,244 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,247 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:51,249 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,251 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,255 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:51,265 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,267 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,271 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:51,280 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,281 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,283 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,284 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,285 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,286 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,287 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,289 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,291 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:02:51,295 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,297 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,300 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:51,309 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,311 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,313 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:02:51,314 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 01:02:51,326 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,327 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,327 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:51,328 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,331 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,333 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:51,334 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,335 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:51,336 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,338 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:51,340 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:02:51,341 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:51,350 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,352 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,356 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:51,365 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,365 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,367 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,369 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,371 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,375 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,377 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:51,380 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:51,382 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 01:02:51,385 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:51,408 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 01:02:51,410 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 01:02:51,413 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 01:02:51,448 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:02:51,450 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:51,459 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:02:51,460 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:51,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:51,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:51,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:51,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:51,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:51,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:51,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:51,929 INFO L244 Elim1Store]: Index analysis took 427 ms [2020-12-23 01:02:52,129 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-23 01:02:52,129 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:52,130 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 82 treesize of output 373 [2020-12-23 01:02:52,137 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:52,147 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:02:52,148 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:52,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,208 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:02:52,310 INFO L244 Elim1Store]: Index analysis took 139 ms [2020-12-23 01:02:52,346 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 74 [2020-12-23 01:02:52,353 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:52,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,380 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:02:52,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,460 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 0 case distinctions, treesize of input 81 treesize of output 80 [2020-12-23 01:02:52,462 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:52,473 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:02:52,473 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:52,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,498 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:02:52,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,580 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 0 case distinctions, treesize of input 80 treesize of output 81 [2020-12-23 01:02:52,582 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:52,593 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-23 01:02:52,594 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:52,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:52,627 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:02:52,637 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 0 case distinctions, treesize of input 77 treesize of output 73 [2020-12-23 01:02:52,640 INFO L547 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:53,121 WARN L197 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 76 [2020-12-23 01:02:53,122 INFO L625 ElimStorePlain]: treesize reduction 422, result has 46.1 percent of original size [2020-12-23 01:02:53,129 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2020-12-23 01:02:53,129 INFO L244 ElimStorePlain]: Needed 11 recursive calls to eliminate 3 variables, input treesize:1104, output treesize:361 [2020-12-23 01:02:53,441 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 01:02:55,180 WARN L197 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 119 DAG size of output: 119 [2020-12-23 01:02:55,199 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 10, 1] term [2020-12-23 01:02:55,200 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 01:02:55,555 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-12-23 01:02:56,538 WARN L197 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-23 01:02:56,554 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 12, 1] term [2020-12-23 01:02:56,554 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 01:02:57,019 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-23 01:02:57,582 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-23 01:02:57,600 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 12, 1] term [2020-12-23 01:02:57,600 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 01:02:57,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:57,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:57,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:57,802 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-23 01:02:57,803 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:57,803 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 7 case distinctions, treesize of input 83 treesize of output 409 [2020-12-23 01:02:57,809 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:59,158 WARN L197 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 166 DAG size of output: 140 [2020-12-23 01:02:59,158 INFO L625 ElimStorePlain]: treesize reduction 181, result has 74.5 percent of original size [2020-12-23 01:02:59,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:59,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:59,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:59,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:59,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:59,321 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-12-23 01:02:59,322 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:59,322 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 84 treesize of output 366 [2020-12-23 01:02:59,330 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:00,666 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2020-12-23 01:03:00,667 INFO L625 ElimStorePlain]: treesize reduction 162, result has 77.7 percent of original size [2020-12-23 01:03:00,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,846 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-12-23 01:03:00,847 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:00,847 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 90 treesize of output 389 [2020-12-23 01:03:00,853 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:02,148 WARN L197 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 155 DAG size of output: 141 [2020-12-23 01:03:02,149 INFO L625 ElimStorePlain]: treesize reduction 158, result has 79.8 percent of original size [2020-12-23 01:03:02,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:02,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:02,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:02,356 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 01:03:02,357 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:02,357 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 7 case distinctions, treesize of input 91 treesize of output 447 [2020-12-23 01:03:02,363 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:03,492 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 161 DAG size of output: 136 [2020-12-23 01:03:03,493 INFO L625 ElimStorePlain]: treesize reduction 195, result has 77.5 percent of original size [2020-12-23 01:03:03,499 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:03:03,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908297073] [2020-12-23 01:03:03,500 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:03:03,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077674173] [2020-12-23 01:03:03,501 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-12-23 01:03:03,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:03:03,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-23 01:03:03,501 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2020-12-23 01:03:03,501 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 01:03:03,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-23 01:03:03,744 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-23 01:03:03,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:03:03 BoogieIcfgContainer [2020-12-23 01:03:03,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 01:03:03,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 01:03:03,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 01:03:03,748 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 01:03:03,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:02:22" (3/4) ... [2020-12-23 01:03:03,753 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 01:03:03,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 01:03:03,754 INFO L168 Benchmark]: Toolchain (without parser) took 42346.15 ms. Allocated memory was 151.0 MB in the beginning and 323.0 MB in the end (delta: 172.0 MB). Free memory was 126.1 MB in the beginning and 119.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 179.0 MB. Max. memory is 8.0 GB. [2020-12-23 01:03:03,754 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 01:03:03,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 477.31 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 115.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 01:03:03,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.18 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 113.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 01:03:03,755 INFO L168 Benchmark]: Boogie Preprocessor took 32.80 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 112.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 01:03:03,756 INFO L168 Benchmark]: RCFGBuilder took 628.22 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 126.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-12-23 01:03:03,757 INFO L168 Benchmark]: TraceAbstraction took 41139.17 ms. Allocated memory was 151.0 MB in the beginning and 323.0 MB in the end (delta: 172.0 MB). Free memory was 125.7 MB in the beginning and 120.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 186.4 MB. Max. memory is 8.0 GB. [2020-12-23 01:03:03,757 INFO L168 Benchmark]: Witness Printer took 4.90 ms. Allocated memory is still 323.0 MB. Free memory was 120.2 MB in the beginning and 119.7 MB in the end (delta: 518.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 01:03:03,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 477.31 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 115.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.18 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 113.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.80 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 112.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 628.22 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 126.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 41139.17 ms. Allocated memory was 151.0 MB in the beginning and 323.0 MB in the end (delta: 172.0 MB). Free memory was 125.7 MB in the beginning and 120.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 186.4 MB. Max. memory is 8.0 GB. * Witness Printer took 4.90 ms. Allocated memory is still 323.0 MB. Free memory was 120.2 MB in the beginning and 119.7 MB in the end (delta: 518.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 33]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L37] signed long long ARR_SIZE ; [L49] ARR_SIZE = (signed long long)__VERIFIER_nondet_short() [L31] COND FALSE !(!cond) [L52] int array[ARR_SIZE][ARR_SIZE] ; [L54] int row = 0, column = 0, num = -1 ; [L55] signed long long sum = 0 ; [L56] int temp ; [L57] short index1,index2 ; [L59] row=0 [L59] COND TRUE row