/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-fpi/res2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 01:26:28,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 01:26:28,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 01:26:28,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 01:26:28,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 01:26:28,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 01:26:28,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 01:26:28,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 01:26:28,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 01:26:28,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 01:26:28,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 01:26:28,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 01:26:28,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 01:26:28,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 01:26:28,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 01:26:28,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 01:26:28,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 01:26:28,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 01:26:28,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 01:26:28,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 01:26:28,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 01:26:28,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 01:26:28,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 01:26:28,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 01:26:28,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 01:26:28,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 01:26:28,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 01:26:28,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 01:26:28,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 01:26:28,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 01:26:28,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 01:26:28,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 01:26:28,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 01:26:28,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 01:26:28,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 01:26:28,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 01:26:28,754 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 01:26:28,822 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 01:26:28,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 01:26:28,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 01:26:28,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 01:26:28,826 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 01:26:28,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 01:26:28,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 01:26:28,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 01:26:28,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 01:26:28,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 01:26:28,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 01:26:28,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 01:26:28,828 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 01:26:28,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 01:26:28,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 01:26:28,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 01:26:28,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 01:26:28,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 01:26:28,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 01:26:28,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 01:26:28,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 01:26:28,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 01:26:28,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 01:26:28,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 01:26:28,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 01:26:28,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 01:26:29,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 01:26:29,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 01:26:29,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 01:26:29,338 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 01:26:29,339 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 01:26:29,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/res2.c [2020-12-23 01:26:29,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/890df0fa8/538d4b65ec1743e19a7d6a17f5fbdeb9/FLAGd2fff0774 [2020-12-23 01:26:30,260 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 01:26:30,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/res2.c [2020-12-23 01:26:30,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/890df0fa8/538d4b65ec1743e19a7d6a17f5fbdeb9/FLAGd2fff0774 [2020-12-23 01:26:30,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/890df0fa8/538d4b65ec1743e19a7d6a17f5fbdeb9 [2020-12-23 01:26:30,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 01:26:30,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 01:26:30,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 01:26:30,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 01:26:30,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 01:26:30,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:26:30" (1/1) ... [2020-12-23 01:26:30,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f040f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30, skipping insertion in model container [2020-12-23 01:26:30,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:26:30" (1/1) ... [2020-12-23 01:26:30,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 01:26:30,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 01:26:30,834 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/res2.c[587,600] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[0]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[0]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~b~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[0]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~c~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~c~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[0]]] [2020-12-23 01:26:30,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:26:30,883 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 01:26:30,902 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/res2.c[587,600] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~b~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~c~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~c~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] [2020-12-23 01:26:30,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:26:30,951 INFO L208 MainTranslator]: Completed translation [2020-12-23 01:26:30,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30 WrapperNode [2020-12-23 01:26:30,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 01:26:30,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 01:26:30,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 01:26:30,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 01:26:30,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30" (1/1) ... [2020-12-23 01:26:30,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30" (1/1) ... [2020-12-23 01:26:31,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 01:26:31,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 01:26:31,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 01:26:31,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 01:26:31,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30" (1/1) ... [2020-12-23 01:26:31,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30" (1/1) ... [2020-12-23 01:26:31,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30" (1/1) ... [2020-12-23 01:26:31,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30" (1/1) ... [2020-12-23 01:26:31,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30" (1/1) ... [2020-12-23 01:26:31,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30" (1/1) ... [2020-12-23 01:26:31,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30" (1/1) ... [2020-12-23 01:26:31,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 01:26:31,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 01:26:31,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 01:26:31,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 01:26:31,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30" (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 01:26:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 01:26:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 01:26:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 01:26:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 01:26:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 01:26:31,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 01:26:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 01:26:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 01:26:31,903 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 01:26:31,903 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-23 01:26:31,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:26:31 BoogieIcfgContainer [2020-12-23 01:26:31,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 01:26:31,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 01:26:31,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 01:26:31,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 01:26:31,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:26:30" (1/3) ... [2020-12-23 01:26:31,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f03ef2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:26:31, skipping insertion in model container [2020-12-23 01:26:31,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:26:30" (2/3) ... [2020-12-23 01:26:31,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f03ef2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:26:31, skipping insertion in model container [2020-12-23 01:26:31,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:26:31" (3/3) ... [2020-12-23 01:26:31,930 INFO L111 eAbstractionObserver]: Analyzing ICFG res2.c [2020-12-23 01:26:31,944 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 01:26:31,952 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 01:26:31,992 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 01:26:32,060 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 01:26:32,060 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 01:26:32,060 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 01:26:32,061 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 01:26:32,061 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 01:26:32,061 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 01:26:32,061 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 01:26:32,062 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 01:26:32,097 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-12-23 01:26:32,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 01:26:32,119 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:26:32,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:26:32,123 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:26:32,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:26:32,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1780399656, now seen corresponding path program 1 times [2020-12-23 01:26:32,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:26:32,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512612018] [2020-12-23 01:26:32,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:26:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:26:32,549 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 01:26:32,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512612018] [2020-12-23 01:26:32,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:26:32,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 01:26:32,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581862977] [2020-12-23 01:26:32,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 01:26:32,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:26:32,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 01:26:32,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 01:26:32,602 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-12-23 01:26:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:26:32,637 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2020-12-23 01:26:32,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 01:26:32,640 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2020-12-23 01:26:32,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:26:32,672 INFO L225 Difference]: With dead ends: 56 [2020-12-23 01:26:32,673 INFO L226 Difference]: Without dead ends: 26 [2020-12-23 01:26:32,677 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 01:26:32,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-23 01:26:32,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-23 01:26:32,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-23 01:26:32,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2020-12-23 01:26:32,749 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2020-12-23 01:26:32,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:26:32,751 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-12-23 01:26:32,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 01:26:32,752 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-12-23 01:26:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 01:26:32,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:26:32,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:26:32,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 01:26:32,756 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:26:32,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:26:32,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1279549768, now seen corresponding path program 1 times [2020-12-23 01:26:32,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:26:32,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578380616] [2020-12-23 01:26:32,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:26:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:26:32,952 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 01:26:32,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578380616] [2020-12-23 01:26:32,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:26:32,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 01:26:32,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602110183] [2020-12-23 01:26:32,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 01:26:32,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:26:32,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 01:26:32,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:26:32,962 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 4 states. [2020-12-23 01:26:33,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:26:33,213 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2020-12-23 01:26:33,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 01:26:33,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-12-23 01:26:33,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:26:33,216 INFO L225 Difference]: With dead ends: 57 [2020-12-23 01:26:33,216 INFO L226 Difference]: Without dead ends: 38 [2020-12-23 01:26:33,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:26:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-23 01:26:33,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2020-12-23 01:26:33,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-23 01:26:33,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2020-12-23 01:26:33,227 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 19 [2020-12-23 01:26:33,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:26:33,228 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2020-12-23 01:26:33,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 01:26:33,228 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2020-12-23 01:26:33,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-23 01:26:33,230 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:26:33,230 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] [2020-12-23 01:26:33,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 01:26:33,231 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:26:33,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:26:33,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1740145276, now seen corresponding path program 1 times [2020-12-23 01:26:33,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:26:33,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204166749] [2020-12-23 01:26:33,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:26:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:26:34,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:26:34,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204166749] [2020-12-23 01:26:34,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412803698] [2020-12-23 01:26:34,874 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 01:26:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:26:35,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 41 conjunts are in the unsatisfiable core [2020-12-23 01:26:35,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:26:35,271 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 01:26:35,273 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:35,311 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:35,314 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:35,315 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2020-12-23 01:26:35,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:35,409 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 01:26:35,416 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:35,439 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:35,440 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:35,441 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:43 [2020-12-23 01:26:35,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:35,753 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-23 01:26:35,755 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:35,772 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:35,778 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:35,778 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:57, output treesize:40 [2020-12-23 01:26:36,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:36,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:36,113 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:36,113 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 52 [2020-12-23 01:26:36,117 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:36,169 INFO L625 ElimStorePlain]: treesize reduction 24, result has 66.2 percent of original size [2020-12-23 01:26:36,174 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:36,174 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:51, output treesize:47 [2020-12-23 01:26:36,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:36,382 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-23 01:26:36,385 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:36,400 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:36,425 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:36,426 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:52, output treesize:37 [2020-12-23 01:26:36,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:36,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:36,682 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:36,682 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 54 [2020-12-23 01:26:36,688 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:36,734 INFO L625 ElimStorePlain]: treesize reduction 24, result has 61.3 percent of original size [2020-12-23 01:26:36,739 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:36,740 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:38 [2020-12-23 01:26:36,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:36,961 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-23 01:26:36,963 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:36,976 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:36,980 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:36,981 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:47, output treesize:32 [2020-12-23 01:26:37,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:26:37,126 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:26:37,138 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:26:37,143 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:26:37,163 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:26:37,169 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:26:37,178 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:26:37,182 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:26:37,193 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:26:37,249 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:26:37,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 01:26:37,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 37 [2020-12-23 01:26:37,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207151321] [2020-12-23 01:26:37,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-12-23 01:26:37,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:26:37,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-12-23 01:26:37,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1146, Unknown=0, NotChecked=0, Total=1332 [2020-12-23 01:26:37,256 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 37 states. [2020-12-23 01:26:37,691 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2020-12-23 01:26:38,183 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 34 [2020-12-23 01:26:41,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:26:41,129 INFO L93 Difference]: Finished difference Result 86 states and 102 transitions. [2020-12-23 01:26:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-23 01:26:41,131 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 31 [2020-12-23 01:26:41,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:26:41,134 INFO L225 Difference]: With dead ends: 86 [2020-12-23 01:26:41,134 INFO L226 Difference]: Without dead ends: 80 [2020-12-23 01:26:41,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 15 SyntacticMatches, 4 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1311 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=696, Invalid=3726, Unknown=0, NotChecked=0, Total=4422 [2020-12-23 01:26:41,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-23 01:26:41,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 55. [2020-12-23 01:26:41,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-12-23 01:26:41,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2020-12-23 01:26:41,153 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 31 [2020-12-23 01:26:41,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:26:41,154 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2020-12-23 01:26:41,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-12-23 01:26:41,154 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2020-12-23 01:26:41,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-23 01:26:41,155 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:26:41,155 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:26:41,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 01:26:41,371 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:26:41,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:26:41,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1839245574, now seen corresponding path program 2 times [2020-12-23 01:26:41,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:26:41,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593164955] [2020-12-23 01:26:41,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:26:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:26:41,520 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-23 01:26:41,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593164955] [2020-12-23 01:26:41,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945444434] [2020-12-23 01:26:41,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:26:41,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:26:41,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:26:41,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 01:26:41,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:26:41,729 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-23 01:26:41,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 01:26:41,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-12-23 01:26:41,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735065145] [2020-12-23 01:26:41,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 01:26:41,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:26:41,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 01:26:41,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:26:41,737 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand 10 states. [2020-12-23 01:26:42,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:26:42,050 INFO L93 Difference]: Finished difference Result 138 states and 164 transitions. [2020-12-23 01:26:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 01:26:42,055 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-12-23 01:26:42,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:26:42,064 INFO L225 Difference]: With dead ends: 138 [2020-12-23 01:26:42,064 INFO L226 Difference]: Without dead ends: 82 [2020-12-23 01:26:42,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-12-23 01:26:42,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-23 01:26:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 64. [2020-12-23 01:26:42,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-12-23 01:26:42,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2020-12-23 01:26:42,080 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 33 [2020-12-23 01:26:42,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:26:42,080 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2020-12-23 01:26:42,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 01:26:42,080 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2020-12-23 01:26:42,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 01:26:42,082 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:26:42,082 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] [2020-12-23 01:26:42,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:26:42,295 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:26:42,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:26:42,296 INFO L82 PathProgramCache]: Analyzing trace with hash 447877832, now seen corresponding path program 3 times [2020-12-23 01:26:42,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:26:42,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268886793] [2020-12-23 01:26:42,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:26:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:26:42,381 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-23 01:26:42,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268886793] [2020-12-23 01:26:42,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200279525] [2020-12-23 01:26:42,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:26:42,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-23 01:26:42,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:26:42,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 01:26:42,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:26:42,560 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-23 01:26:42,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 01:26:42,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-12-23 01:26:42,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131900765] [2020-12-23 01:26:42,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 01:26:42,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:26:42,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 01:26:42,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:26:42,565 INFO L87 Difference]: Start difference. First operand 64 states and 74 transitions. Second operand 10 states. [2020-12-23 01:26:42,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:26:42,859 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2020-12-23 01:26:42,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 01:26:42,860 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2020-12-23 01:26:42,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:26:42,861 INFO L225 Difference]: With dead ends: 75 [2020-12-23 01:26:42,861 INFO L226 Difference]: Without dead ends: 55 [2020-12-23 01:26:42,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-12-23 01:26:42,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-12-23 01:26:42,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 44. [2020-12-23 01:26:42,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-23 01:26:42,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-12-23 01:26:42,870 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 35 [2020-12-23 01:26:42,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:26:42,871 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-12-23 01:26:42,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 01:26:42,871 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-12-23 01:26:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-23 01:26:42,872 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:26:42,872 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:26:43,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:26:43,088 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:26:43,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:26:43,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1410382416, now seen corresponding path program 4 times [2020-12-23 01:26:43,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:26:43,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859855778] [2020-12-23 01:26:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:26:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:26:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:26:45,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859855778] [2020-12-23 01:26:45,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932723787] [2020-12-23 01:26:45,805 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:26:45,885 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 01:26:45,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:26:45,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 52 conjunts are in the unsatisfiable core [2020-12-23 01:26:45,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:26:45,913 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 01:26:45,918 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:45,928 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:45,929 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:45,930 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:26 [2020-12-23 01:26:46,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:46,009 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 01:26:46,012 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:46,024 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:46,026 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:46,026 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2020-12-23 01:26:46,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:46,178 INFO L348 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2020-12-23 01:26:46,179 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2020-12-23 01:26:46,181 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:46,197 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:46,199 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:46,199 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:42 [2020-12-23 01:26:46,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:46,386 INFO L348 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2020-12-23 01:26:46,387 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 72 [2020-12-23 01:26:46,392 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:46,428 INFO L625 ElimStorePlain]: treesize reduction 32, result has 62.4 percent of original size [2020-12-23 01:26:46,429 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:46,430 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:53 [2020-12-23 01:26:46,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:46,596 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-12-23 01:26:46,597 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 35 [2020-12-23 01:26:46,599 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:46,614 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:46,617 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:46,617 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:42 [2020-12-23 01:26:46,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:46,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:46,937 INFO L348 Elim1Store]: treesize reduction 10, result has 89.7 percent of original size [2020-12-23 01:26:46,938 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 114 [2020-12-23 01:26:46,942 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:47,020 INFO L625 ElimStorePlain]: treesize reduction 70, result has 44.4 percent of original size [2020-12-23 01:26:47,024 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:47,025 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:56 [2020-12-23 01:26:49,266 WARN L197 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 36 [2020-12-23 01:26:49,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,431 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2020-12-23 01:26:49,432 INFO L348 Elim1Store]: treesize reduction 56, result has 60.6 percent of original size [2020-12-23 01:26:49,433 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 114 [2020-12-23 01:26:49,438 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:49,511 INFO L625 ElimStorePlain]: treesize reduction 54, result has 51.8 percent of original size [2020-12-23 01:26:49,513 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:49,514 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:62, output treesize:58 [2020-12-23 01:26:49,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:49,789 INFO L348 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2020-12-23 01:26:49,789 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 72 [2020-12-23 01:26:49,793 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:49,836 INFO L625 ElimStorePlain]: treesize reduction 46, result has 52.1 percent of original size [2020-12-23 01:26:49,837 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:49,837 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:50 [2020-12-23 01:26:50,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:50,098 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-12-23 01:26:50,099 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 37 [2020-12-23 01:26:50,104 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:50,135 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:50,139 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:50,140 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:66, output treesize:50 [2020-12-23 01:26:50,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:50,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:50,595 INFO L348 Elim1Store]: treesize reduction 10, result has 89.7 percent of original size [2020-12-23 01:26:50,596 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 117 [2020-12-23 01:26:50,601 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:50,664 INFO L625 ElimStorePlain]: treesize reduction 70, result has 44.9 percent of original size [2020-12-23 01:26:50,667 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:50,668 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:57 [2020-12-23 01:26:50,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:50,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,063 INFO L348 Elim1Store]: treesize reduction 56, result has 60.6 percent of original size [2020-12-23 01:26:51,064 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 116 [2020-12-23 01:26:51,069 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:51,136 INFO L625 ElimStorePlain]: treesize reduction 54, result has 52.2 percent of original size [2020-12-23 01:26:51,140 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:51,140 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:63, output treesize:59 [2020-12-23 01:26:51,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,458 INFO L348 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2020-12-23 01:26:51,464 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 72 [2020-12-23 01:26:51,468 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:51,501 INFO L625 ElimStorePlain]: treesize reduction 40, result has 52.9 percent of original size [2020-12-23 01:26:51,502 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:26:51,502 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:60, output treesize:45 [2020-12-23 01:26:51,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:26:51,781 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-12-23 01:26:51,782 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 37 [2020-12-23 01:26:51,784 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:26:51,797 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:26:51,800 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:26:51,800 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:61, output treesize:38 [2020-12-23 01:26:51,968 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:26:51,973 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:26:51,979 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:26:51,981 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:26:51,986 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:26:51,988 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:26:51,995 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:26:52,000 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:26:52,004 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:26:52,006 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:26:52,011 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:26:52,013 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:26:52,017 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 01:26:52,119 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:26:52,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 01:26:52,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 27] total 59 [2020-12-23 01:26:52,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757242303] [2020-12-23 01:26:52,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-12-23 01:26:52,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:26:52,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-12-23 01:26:52,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=3113, Unknown=0, NotChecked=0, Total=3422 [2020-12-23 01:26:52,123 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 59 states. [2020-12-23 01:26:52,915 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 43 [2020-12-23 01:26:53,347 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2020-12-23 01:26:53,608 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2020-12-23 01:26:58,236 WARN L197 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-12-23 01:26:59,239 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 45 [2020-12-23 01:27:03,423 WARN L197 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-23 01:27:05,305 WARN L197 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-12-23 01:27:06,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:27:06,689 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2020-12-23 01:27:06,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-12-23 01:27:06,690 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 43 [2020-12-23 01:27:06,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:27:06,691 INFO L225 Difference]: With dead ends: 85 [2020-12-23 01:27:06,691 INFO L226 Difference]: Without dead ends: 81 [2020-12-23 01:27:06,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2782 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=757, Invalid=8173, Unknown=0, NotChecked=0, Total=8930 [2020-12-23 01:27:06,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-12-23 01:27:06,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 67. [2020-12-23 01:27:06,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-12-23 01:27:06,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2020-12-23 01:27:06,709 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 76 transitions. Word has length 43 [2020-12-23 01:27:06,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:27:06,710 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 76 transitions. [2020-12-23 01:27:06,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-12-23 01:27:06,710 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 76 transitions. [2020-12-23 01:27:06,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-23 01:27:06,711 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:27:06,712 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:27:06,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:27:06,929 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:27:06,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:27:06,930 INFO L82 PathProgramCache]: Analyzing trace with hash -313453870, now seen corresponding path program 5 times [2020-12-23 01:27:06,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:27:06,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28721630] [2020-12-23 01:27:06,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:27:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:27:07,092 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-23 01:27:07,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28721630] [2020-12-23 01:27:07,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100175543] [2020-12-23 01:27:07,093 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:27:07,340 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-23 01:27:07,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:27:07,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:27:07,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:27:07,499 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-23 01:27:07,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 01:27:07,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-12-23 01:27:07,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961729184] [2020-12-23 01:27:07,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-23 01:27:07,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:27:07,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-23 01:27:07,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-12-23 01:27:07,502 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. Second operand 16 states. [2020-12-23 01:27:08,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:27:08,200 INFO L93 Difference]: Finished difference Result 143 states and 165 transitions. [2020-12-23 01:27:08,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 01:27:08,201 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2020-12-23 01:27:08,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:27:08,202 INFO L225 Difference]: With dead ends: 143 [2020-12-23 01:27:08,202 INFO L226 Difference]: Without dead ends: 62 [2020-12-23 01:27:08,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2020-12-23 01:27:08,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-12-23 01:27:08,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2020-12-23 01:27:08,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-23 01:27:08,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2020-12-23 01:27:08,213 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 45 [2020-12-23 01:27:08,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:27:08,214 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2020-12-23 01:27:08,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-23 01:27:08,214 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2020-12-23 01:27:08,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-23 01:27:08,215 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:27:08,215 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:27:08,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 01:27:08,429 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:27:08,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:27:08,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1101638372, now seen corresponding path program 6 times [2020-12-23 01:27:08,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:27:08,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782419721] [2020-12-23 01:27:08,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:27:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:27:09,409 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-12-23 01:27:09,550 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-12-23 01:27:09,698 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-12-23 01:27:09,853 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2020-12-23 01:27:10,212 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-12-23 01:27:11,479 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2020-12-23 01:27:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:27:13,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782419721] [2020-12-23 01:27:13,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12320265] [2020-12-23 01:27:13,763 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:27:13,879 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2020-12-23 01:27:13,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:27:13,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 93 conjunts are in the unsatisfiable core [2020-12-23 01:27:13,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:27:14,040 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2020-12-23 01:27:14,042 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:14,064 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:14,076 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 01:27:14,077 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:14,103 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:14,105 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:27:14,106 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:51, output treesize:53 [2020-12-23 01:27:14,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:14,258 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 01:27:14,260 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:14,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:14,271 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 01:27:14,272 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:14,431 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2020-12-23 01:27:14,432 INFO L625 ElimStorePlain]: treesize reduction 4, result has 96.2 percent of original size [2020-12-23 01:27:14,433 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 01:27:14,434 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:113, output treesize:101 [2020-12-23 01:27:14,782 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:14,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:14,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:14,804 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2020-12-23 01:27:14,808 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:14,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:14,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:14,820 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2020-12-23 01:27:14,824 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:14,912 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:14,913 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 01:27:14,914 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:133, output treesize:125 [2020-12-23 01:27:15,335 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:15,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:15,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:15,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:15,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:15,368 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2020-12-23 01:27:15,370 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:15,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:15,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:15,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:15,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:15,392 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2020-12-23 01:27:15,398 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:15,518 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-23 01:27:15,519 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:15,522 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 01:27:15,522 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:163, output treesize:155 [2020-12-23 01:27:15,771 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-23 01:27:15,781 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 14, 1] term [2020-12-23 01:27:15,781 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:16,038 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-23 01:27:16,048 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:16,497 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-23 01:27:16,502 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:16,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,542 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 0 case distinctions, treesize of input 54 treesize of output 47 [2020-12-23 01:27:16,546 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:16,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,564 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2020-12-23 01:27:16,566 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:16,648 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:16,652 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 01:27:16,652 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:171, output treesize:133 [2020-12-23 01:27:16,896 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:16,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,959 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:16,960 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 98 [2020-12-23 01:27:16,963 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:16,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:16,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:17,002 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:17,003 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 98 [2020-12-23 01:27:17,007 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:17,246 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-12-23 01:27:17,247 INFO L625 ElimStorePlain]: treesize reduction 136, result has 54.5 percent of original size [2020-12-23 01:27:17,249 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 01:27:17,250 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:183, output treesize:163 [2020-12-23 01:27:17,505 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-23 01:27:17,799 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-12-23 01:27:17,815 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 13, 1] term [2020-12-23 01:27:17,815 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:17,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:17,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:17,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:17,879 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:17,880 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 76 treesize of output 121 [2020-12-23 01:27:17,885 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:18,132 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2020-12-23 01:27:18,133 INFO L625 ElimStorePlain]: treesize reduction 140, result has 55.6 percent of original size [2020-12-23 01:27:18,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:18,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:18,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:18,183 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:18,184 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 119 [2020-12-23 01:27:18,189 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:18,422 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-12-23 01:27:18,425 INFO L625 ElimStorePlain]: treesize reduction 92, result has 63.3 percent of original size [2020-12-23 01:27:18,430 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-12-23 01:27:18,431 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:201, output treesize:159 [2020-12-23 01:27:18,744 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:19,047 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:19,830 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:19,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:19,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:19,861 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:19,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:19,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:19,867 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:19,877 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:19,889 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:19,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:19,897 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:19,917 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:19,917 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 77 [2020-12-23 01:27:19,920 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:19,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:19,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:19,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:19,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:19,936 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:19,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:19,938 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:19,946 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 61 [2020-12-23 01:27:19,948 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:20,206 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-12-23 01:27:20,207 INFO L625 ElimStorePlain]: treesize reduction 16, result has 92.8 percent of original size [2020-12-23 01:27:20,216 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2020-12-23 01:27:20,217 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:205, output treesize:206 [2020-12-23 01:27:20,640 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-23 01:27:21,082 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-23 01:27:21,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:21,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,183 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 0 case distinctions, treesize of input 72 treesize of output 75 [2020-12-23 01:27:21,186 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:21,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,227 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:21,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:21,234 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:21,255 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:21,255 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 87 treesize of output 106 [2020-12-23 01:27:21,259 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:21,574 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-12-23 01:27:21,575 INFO L625 ElimStorePlain]: treesize reduction 20, result has 91.1 percent of original size [2020-12-23 01:27:21,582 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2020-12-23 01:27:21,583 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:238, output treesize:205 [2020-12-23 01:27:21,981 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-23 01:27:22,385 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-12-23 01:27:22,394 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-12-23 01:27:22,394 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:22,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,439 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 80 [2020-12-23 01:27:22,442 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:22,581 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-23 01:27:22,581 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:22,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:22,607 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:22,618 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:22,645 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:22,646 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 64 treesize of output 112 [2020-12-23 01:27:22,649 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:22,957 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-12-23 01:27:22,958 INFO L625 ElimStorePlain]: treesize reduction 34, result has 85.0 percent of original size [2020-12-23 01:27:22,965 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2020-12-23 01:27:22,965 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:211, output treesize:193 [2020-12-23 01:27:23,453 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2020-12-23 01:27:23,837 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-12-23 01:27:23,846 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 12, 1] term [2020-12-23 01:27:23,847 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:23,856 INFO L443 ElimStorePlain]: Different costs {20=[v_prenex_5], 56=[|v_#memory_int_47|]} [2020-12-23 01:27:23,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:23,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:23,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:23,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:23,873 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2020-12-23 01:27:23,875 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:23,985 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-23 01:27:23,986 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:23,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,016 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 83 [2020-12-23 01:27:24,019 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:24,130 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-23 01:27:24,131 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:24,136 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-12-23 01:27:24,137 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:195, output treesize:159 [2020-12-23 01:27:24,486 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:24,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,610 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:24,611 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 136 [2020-12-23 01:27:24,616 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:24,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:24,662 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:24,665 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 98 [2020-12-23 01:27:24,669 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:24,943 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-12-23 01:27:24,944 INFO L625 ElimStorePlain]: treesize reduction 108, result has 61.6 percent of original size [2020-12-23 01:27:24,949 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-12-23 01:27:24,949 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:209, output treesize:173 [2020-12-23 01:27:25,300 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-12-23 01:27:25,663 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-12-23 01:27:25,672 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-12-23 01:27:25,672 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:25,687 INFO L443 ElimStorePlain]: Different costs {36=[|v_#memory_int_49|], 79=[v_prenex_7]} [2020-12-23 01:27:25,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:25,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:25,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:25,737 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:25,738 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 119 [2020-12-23 01:27:25,743 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:26,017 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2020-12-23 01:27:26,019 INFO L625 ElimStorePlain]: treesize reduction 101, result has 65.9 percent of original size [2020-12-23 01:27:26,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:26,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:26,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:26,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:26,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:26,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:26,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:26,083 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:26,084 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 11 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 5 case distinctions, treesize of input 89 treesize of output 155 [2020-12-23 01:27:26,088 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:26,332 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2020-12-23 01:27:26,333 INFO L625 ElimStorePlain]: treesize reduction 110, result has 61.9 percent of original size [2020-12-23 01:27:26,340 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2020-12-23 01:27:26,340 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:211, output treesize:179 [2020-12-23 01:27:26,752 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-12-23 01:27:26,761 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:29,238 WARN L197 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 79 [2020-12-23 01:27:29,247 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:35,454 WARN L197 SmtUtils]: Spent 5.52 s on a formula simplification that was a NOOP. DAG size: 86 [2020-12-23 01:27:35,466 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:35,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,503 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:35,504 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:35,533 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:35,536 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:35,539 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:35,564 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:35,565 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 77 [2020-12-23 01:27:35,568 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:35,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,591 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:35,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,597 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:35,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:35,600 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:35,644 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:35,645 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 129 [2020-12-23 01:27:35,650 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:36,001 WARN L197 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2020-12-23 01:27:36,002 INFO L625 ElimStorePlain]: treesize reduction 48, result has 81.5 percent of original size [2020-12-23 01:27:36,012 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2020-12-23 01:27:36,012 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:225, output treesize:211 [2020-12-23 01:27:40,482 WARN L197 SmtUtils]: Spent 4.14 s on a formula simplification that was a NOOP. DAG size: 88 [2020-12-23 01:27:46,997 WARN L197 SmtUtils]: Spent 6.16 s on a formula simplification that was a NOOP. DAG size: 88 [2020-12-23 01:27:47,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:47,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,098 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:47,104 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:47,130 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:47,131 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 72 treesize of output 103 [2020-12-23 01:27:47,134 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:47,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:47,184 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:47,190 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:47,199 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:47,247 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:47,248 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 95 treesize of output 167 [2020-12-23 01:27:47,254 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:47,694 WARN L197 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2020-12-23 01:27:47,695 INFO L625 ElimStorePlain]: treesize reduction 60, result has 78.5 percent of original size [2020-12-23 01:27:47,706 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2020-12-23 01:27:47,707 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:243, output treesize:219 [2020-12-23 01:27:52,352 WARN L197 SmtUtils]: Spent 4.24 s on a formula simplification that was a NOOP. DAG size: 87 [2020-12-23 01:27:53,020 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-23 01:27:53,033 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 1] term [2020-12-23 01:27:53,034 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:27:53,050 INFO L443 ElimStorePlain]: Different costs {42=[v_prenex_9], 89=[|v_#memory_int_52|]} [2020-12-23 01:27:53,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,088 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:53,102 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:53,136 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:53,137 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 64 treesize of output 112 [2020-12-23 01:27:53,141 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:53,576 WARN L197 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2020-12-23 01:27:53,577 INFO L625 ElimStorePlain]: treesize reduction 40, result has 84.7 percent of original size [2020-12-23 01:27:53,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,625 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:53,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:27:53,646 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:53,652 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:53,654 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:27:53,723 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:27:53,723 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 14 case distinctions, treesize of input 91 treesize of output 182 [2020-12-23 01:27:53,730 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:27:54,142 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2020-12-23 01:27:54,143 INFO L625 ElimStorePlain]: treesize reduction 52, result has 80.7 percent of original size [2020-12-23 01:27:54,152 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2020-12-23 01:27:54,153 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:225, output treesize:217 [2020-12-23 01:28:12,809 WARN L197 SmtUtils]: Spent 18.24 s on a formula simplification that was a NOOP. DAG size: 87 [2020-12-23 01:28:15,643 WARN L197 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 89 [2020-12-23 01:28:15,655 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 10, 1] term [2020-12-23 01:28:15,656 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:28:15,673 INFO L443 ElimStorePlain]: Different costs {56=[|v_#memory_int_53|], 109=[v_prenex_10]} [2020-12-23 01:28:15,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:15,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:15,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:15,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:15,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:15,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:15,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:15,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:15,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:15,713 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:15,716 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:15,740 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:15,741 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 81 treesize of output 107 [2020-12-23 01:28:15,745 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:16,157 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2020-12-23 01:28:16,159 INFO L625 ElimStorePlain]: treesize reduction 20, result has 92.4 percent of original size [2020-12-23 01:28:16,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:16,202 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:16,204 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:16,205 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:16,207 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:16,258 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:16,259 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 108 treesize of output 167 [2020-12-23 01:28:16,265 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:16,452 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-12-23 01:28:16,453 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:16,463 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2020-12-23 01:28:16,463 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:259, output treesize:223 [2020-12-23 01:28:23,048 WARN L197 SmtUtils]: Spent 6.21 s on a formula simplification that was a NOOP. DAG size: 90 [2020-12-23 01:28:23,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:28:23,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,231 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:23,234 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:23,331 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:23,332 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 91 treesize of output 214 [2020-12-23 01:28:23,338 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:23,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:23,396 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:23,398 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:23,401 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:23,405 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:23,564 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-12-23 01:28:23,565 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:28:23,565 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 10 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 112 treesize of output 326 [2020-12-23 01:28:23,576 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:24,030 WARN L197 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 91 [2020-12-23 01:28:24,031 INFO L625 ElimStorePlain]: treesize reduction 421, result has 36.5 percent of original size [2020-12-23 01:28:24,037 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2020-12-23 01:28:24,038 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:273, output treesize:242 [2020-12-23 01:28:36,691 WARN L197 SmtUtils]: Spent 12.22 s on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 01:28:57,291 WARN L197 SmtUtils]: Spent 20.21 s on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 01:28:57,301 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 1] term [2020-12-23 01:28:57,302 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:28:57,321 INFO L443 ElimStorePlain]: Different costs {79=[v_prenex_12], 139=[|v_#memory_int_55|]} [2020-12-23 01:28:57,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:57,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:57,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:57,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:57,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:57,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:57,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:57,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:57,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:57,370 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:57,372 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:57,590 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2020-12-23 01:28:57,591 INFO L348 Elim1Store]: treesize reduction 30, result has 81.6 percent of original size [2020-12-23 01:28:57,591 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 94 treesize of output 234 [2020-12-23 01:28:57,600 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:58,051 WARN L197 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 108 [2020-12-23 01:28:58,055 INFO L625 ElimStorePlain]: treesize reduction 239, result has 52.5 percent of original size [2020-12-23 01:28:58,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,113 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:58,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:28:58,117 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:58,118 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:58,120 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:28:58,488 WARN L197 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-12-23 01:28:58,489 INFO L348 Elim1Store]: treesize reduction 60, result has 77.9 percent of original size [2020-12-23 01:28:58,490 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 12 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 35 case distinctions, treesize of input 116 treesize of output 347 [2020-12-23 01:28:58,502 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:28:58,935 WARN L197 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 101 [2020-12-23 01:28:58,936 INFO L625 ElimStorePlain]: treesize reduction 268, result has 48.1 percent of original size [2020-12-23 01:28:58,948 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 2 dim-2 vars, End of recursive call: 8 dim-0 vars, and 2 xjuncts. [2020-12-23 01:28:58,949 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:280, output treesize:248 [2020-12-23 01:28:59,595 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 01:28:59,611 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:29:04,345 WARN L197 SmtUtils]: Spent 4.10 s on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 01:29:04,358 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:29:07,182 WARN L197 SmtUtils]: Spent 2.11 s on a formula simplification that was a NOOP. DAG size: 117 [2020-12-23 01:29:07,194 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:29:07,218 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:29:07,220 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:29:07,510 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:29:07,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 01:29:07,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 46] total 91 [2020-12-23 01:29:07,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379040693] [2020-12-23 01:29:07,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 91 states [2020-12-23 01:29:07,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:29:07,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2020-12-23 01:29:07,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=685, Invalid=7505, Unknown=0, NotChecked=0, Total=8190 [2020-12-23 01:29:07,517 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand 91 states. [2020-12-23 01:29:08,124 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-12-23 01:29:08,577 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-23 01:29:09,020 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-12-23 01:29:09,512 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-12-23 01:29:09,983 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-23 01:29:10,537 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-12-23 01:29:11,061 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-12-23 01:29:11,847 WARN L197 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 52 [2020-12-23 01:29:12,459 WARN L197 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-12-23 01:29:12,968 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-12-23 01:29:17,769 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 53 [2020-12-23 01:29:18,783 WARN L197 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2020-12-23 01:29:22,250 WARN L197 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 91 [2020-12-23 01:29:23,326 WARN L197 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2020-12-23 01:29:26,279 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2020-12-23 01:29:27,102 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2020-12-23 01:29:28,123 WARN L197 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2020-12-23 01:29:34,983 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2020-12-23 01:29:39,813 WARN L197 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2020-12-23 01:29:40,760 WARN L197 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2020-12-23 01:29:43,752 WARN L197 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-12-23 01:29:44,645 WARN L197 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2020-12-23 01:29:45,663 WARN L197 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 71 [2020-12-23 01:29:46,922 WARN L197 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2020-12-23 01:29:55,872 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2020-12-23 01:29:56,533 WARN L197 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2020-12-23 01:30:01,265 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 69 [2020-12-23 01:30:01,944 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2020-12-23 01:30:06,873 WARN L197 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2020-12-23 01:30:07,563 WARN L197 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-12-23 01:30:16,179 WARN L197 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2020-12-23 01:30:18,786 WARN L197 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-12-23 01:30:40,172 WARN L197 SmtUtils]: Spent 18.70 s on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2020-12-23 01:30:41,012 WARN L197 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89