/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-patterns/array25_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 01:02:36,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 01:02:36,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 01:02:36,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 01:02:36,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 01:02:36,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 01:02:36,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 01:02:36,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 01:02:36,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 01:02:36,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 01:02:36,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 01:02:36,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 01:02:36,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 01:02:36,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 01:02:36,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 01:02:36,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 01:02:36,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 01:02:36,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 01:02:36,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 01:02:36,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 01:02:36,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 01:02:36,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 01:02:36,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 01:02:36,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 01:02:36,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 01:02:36,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 01:02:36,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 01:02:36,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 01:02:36,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 01:02:36,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 01:02:36,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 01:02:36,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 01:02:36,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 01:02:36,830 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 01:02:36,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 01:02:36,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 01:02:36,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 01:02:36,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 01:02:36,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 01:02:36,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 01:02:36,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 01:02:36,833 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 01:02:36,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 01:02:36,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 01:02:36,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 01:02:36,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 01:02:36,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 01:02:36,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 01:02:36,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 01:02:36,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 01:02:36,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 01:02:36,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 01:02:36,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 01:02:36,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 01:02:36,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 01:02:37,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 01:02:37,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 01:02:37,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 01:02:37,296 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 01:02:37,296 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 01:02:37,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array25_pattern.c [2020-12-23 01:02:37,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/26305c1d4/ed6c8f8b158d4ac48c5f353c44562c73/FLAG476e408d5 [2020-12-23 01:02:38,088 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 01:02:38,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-patterns/array25_pattern.c [2020-12-23 01:02:38,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/26305c1d4/ed6c8f8b158d4ac48c5f353c44562c73/FLAG476e408d5 [2020-12-23 01:02:38,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/26305c1d4/ed6c8f8b158d4ac48c5f353c44562c73 [2020-12-23 01:02:38,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 01:02:38,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 01:02:38,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 01:02:38,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 01:02:38,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 01:02:38,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:02:38" (1/1) ... [2020-12-23 01:02:38,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2705d455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38, skipping insertion in model container [2020-12-23 01:02:38,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:02:38" (1/1) ... [2020-12-23 01:02:38,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 01:02:38,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 01:02:38,713 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-patterns/array25_pattern.c[1270,1283] left hand side expression in assignment: lhs: VariableLHS[~ARR_SIZE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: lhs: ArrayLHS[ArrayLHS[VariableLHS[~array~0,],[IdentifierExpression[~row~0,]]],[IdentifierExpression[~column~0,]]] left hand side expression in assignment: lhs: ArrayLHS[ArrayLHS[VariableLHS[~array~0,],[IdentifierExpression[~row~0,]]],[IdentifierExpression[~column~0,]]] left hand side expression in assignment: lhs: ArrayLHS[ArrayLHS[VariableLHS[~array~0,],[IdentifierExpression[~row~0,]]],[IdentifierExpression[~column~0,]]] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: lhs: VariableLHS[~sum~0,] [2020-12-23 01:02:38,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:02:38,750 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 01:02:38,765 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-patterns/array25_pattern.c[1270,1283] left hand side expression in assignment: lhs: VariableLHS[~ARR_SIZE~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,],base],BinaryExpression[ARITHPLUS,BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,],offset],BinaryExpression[ARITHMUL,IdentifierExpression[~row~0,],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~ARR_SIZE~0,GLOBAL]]]],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~column~0,]]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,],base],BinaryExpression[ARITHPLUS,BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,],offset],BinaryExpression[ARITHMUL,IdentifierExpression[~row~0,],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~ARR_SIZE~0,GLOBAL]]]],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~column~0,]]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,],base],BinaryExpression[ARITHPLUS,BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,],offset],BinaryExpression[ARITHMUL,IdentifierExpression[~row~0,],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~ARR_SIZE~0,GLOBAL]]]],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~column~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~row~0,] left hand side expression in assignment: lhs: VariableLHS[~column~0,] left hand side expression in assignment: lhs: VariableLHS[~sum~0,] [2020-12-23 01:02:38,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:02:38,812 INFO L208 MainTranslator]: Completed translation [2020-12-23 01:02:38,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38 WrapperNode [2020-12-23 01:02:38,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 01:02:38,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 01:02:38,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 01:02:38,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 01:02:38,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38" (1/1) ... [2020-12-23 01:02:38,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38" (1/1) ... [2020-12-23 01:02:38,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 01:02:38,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 01:02:38,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 01:02:38,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 01:02:38,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38" (1/1) ... [2020-12-23 01:02:38,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38" (1/1) ... [2020-12-23 01:02:38,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38" (1/1) ... [2020-12-23 01:02:38,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38" (1/1) ... [2020-12-23 01:02:38,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38" (1/1) ... [2020-12-23 01:02:38,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38" (1/1) ... [2020-12-23 01:02:38,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38" (1/1) ... [2020-12-23 01:02:38,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 01:02:38,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 01:02:38,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 01:02:38,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 01:02:38,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 01:02:39,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 01:02:39,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 01:02:39,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 01:02:39,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 01:02:39,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 01:02:39,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 01:02:39,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 01:02:39,665 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 01:02:39,665 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-23 01:02:39,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:02:39 BoogieIcfgContainer [2020-12-23 01:02:39,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 01:02:39,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 01:02:39,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 01:02:39,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 01:02:39,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:02:38" (1/3) ... [2020-12-23 01:02:39,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13637635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:02:39, skipping insertion in model container [2020-12-23 01:02:39,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:38" (2/3) ... [2020-12-23 01:02:39,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13637635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:02:39, skipping insertion in model container [2020-12-23 01:02:39,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:02:39" (3/3) ... [2020-12-23 01:02:39,686 INFO L111 eAbstractionObserver]: Analyzing ICFG array25_pattern.c [2020-12-23 01:02:39,693 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 01:02:39,698 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 01:02:39,724 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 01:02:39,769 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 01:02:39,770 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 01:02:39,770 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 01:02:39,770 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 01:02:39,770 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 01:02:39,770 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 01:02:39,770 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 01:02:39,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 01:02:39,789 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-12-23 01:02:39,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 01:02:39,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:39,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:39,798 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:39,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:39,805 INFO L82 PathProgramCache]: Analyzing trace with hash -320975489, now seen corresponding path program 1 times [2020-12-23 01:02:39,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:39,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960849951] [2020-12-23 01:02:39,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:02:40,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960849951] [2020-12-23 01:02:40,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:02:40,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 01:02:40,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343461972] [2020-12-23 01:02:40,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 01:02:40,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:40,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 01:02:40,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 01:02:40,074 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-12-23 01:02:40,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:40,100 INFO L93 Difference]: Finished difference Result 43 states and 64 transitions. [2020-12-23 01:02:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 01:02:40,102 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-23 01:02:40,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:40,120 INFO L225 Difference]: With dead ends: 43 [2020-12-23 01:02:40,120 INFO L226 Difference]: Without dead ends: 19 [2020-12-23 01:02:40,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 01:02:40,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-23 01:02:40,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-23 01:02:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-23 01:02:40,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-12-23 01:02:40,170 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 10 [2020-12-23 01:02:40,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:40,171 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-12-23 01:02:40,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 01:02:40,171 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-12-23 01:02:40,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 01:02:40,172 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:40,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:40,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 01:02:40,173 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:40,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:40,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1931938343, now seen corresponding path program 1 times [2020-12-23 01:02:40,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:40,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866119399] [2020-12-23 01:02:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:40,216 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:40,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1242284197] [2020-12-23 01:02:40,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:40,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 01:02:40,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:02:40,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866119399] [2020-12-23 01:02:40,415 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:40,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242284197] [2020-12-23 01:02:40,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:02:40,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 01:02:40,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416530482] [2020-12-23 01:02:40,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 01:02:40,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:40,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 01:02:40,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:02:40,418 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand 5 states. [2020-12-23 01:02:40,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:40,536 INFO L93 Difference]: Finished difference Result 44 states and 60 transitions. [2020-12-23 01:02:40,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 01:02:40,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-23 01:02:40,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:40,538 INFO L225 Difference]: With dead ends: 44 [2020-12-23 01:02:40,538 INFO L226 Difference]: Without dead ends: 29 [2020-12-23 01:02:40,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 01:02:40,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-23 01:02:40,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2020-12-23 01:02:40,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-23 01:02:40,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2020-12-23 01:02:40,547 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 10 [2020-12-23 01:02:40,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:40,548 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-12-23 01:02:40,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 01:02:40,548 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-12-23 01:02:40,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 01:02:40,549 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:40,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:40,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-23 01:02:40,766 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:40,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:40,768 INFO L82 PathProgramCache]: Analyzing trace with hash -438331433, now seen corresponding path program 1 times [2020-12-23 01:02:40,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:40,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215847994] [2020-12-23 01:02:40,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:40,783 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:40,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1608150362] [2020-12-23 01:02:40,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:40,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 01:02:40,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:40,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 01:02:40,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215847994] [2020-12-23 01:02:40,877 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:40,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608150362] [2020-12-23 01:02:40,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:02:40,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 01:02:40,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009989569] [2020-12-23 01:02:40,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 01:02:40,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:40,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 01:02:40,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:02:40,880 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 4 states. [2020-12-23 01:02:40,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:40,958 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2020-12-23 01:02:40,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 01:02:40,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-23 01:02:40,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:40,960 INFO L225 Difference]: With dead ends: 51 [2020-12-23 01:02:40,960 INFO L226 Difference]: Without dead ends: 35 [2020-12-23 01:02:40,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:02:40,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-23 01:02:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2020-12-23 01:02:40,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-23 01:02:40,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-12-23 01:02:40,978 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 16 [2020-12-23 01:02:40,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:40,978 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-12-23 01:02:40,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 01:02:40,978 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-12-23 01:02:40,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 01:02:40,979 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:40,979 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] [2020-12-23 01:02:41,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:41,193 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:41,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:41,195 INFO L82 PathProgramCache]: Analyzing trace with hash -308201553, now seen corresponding path program 1 times [2020-12-23 01:02:41,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:41,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925868362] [2020-12-23 01:02:41,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:41,210 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:41,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [63213609] [2020-12-23 01:02:41,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:41,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:02:41,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 01:02:41,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925868362] [2020-12-23 01:02:41,410 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:41,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63213609] [2020-12-23 01:02:41,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:41,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 01:02:41,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145810251] [2020-12-23 01:02:41,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 01:02:41,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:41,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 01:02:41,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 01:02:41,417 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 6 states. [2020-12-23 01:02:41,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:41,561 INFO L93 Difference]: Finished difference Result 65 states and 86 transitions. [2020-12-23 01:02:41,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 01:02:41,561 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-12-23 01:02:41,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:41,562 INFO L225 Difference]: With dead ends: 65 [2020-12-23 01:02:41,563 INFO L226 Difference]: Without dead ends: 45 [2020-12-23 01:02:41,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:41,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-23 01:02:41,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 40. [2020-12-23 01:02:41,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-23 01:02:41,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-12-23 01:02:41,572 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 21 [2020-12-23 01:02:41,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:41,573 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-12-23 01:02:41,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 01:02:41,573 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-12-23 01:02:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-23 01:02:41,574 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:41,574 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] [2020-12-23 01:02:41,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:41,790 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:41,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:41,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1610723178, now seen corresponding path program 1 times [2020-12-23 01:02:41,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:41,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008603674] [2020-12-23 01:02:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:41,805 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:41,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [294292438] [2020-12-23 01:02:41,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:41,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 01:02:41,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-23 01:02:41,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008603674] [2020-12-23 01:02:41,981 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:41,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294292438] [2020-12-23 01:02:41,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:41,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 01:02:41,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357113460] [2020-12-23 01:02:41,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 01:02:41,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:41,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 01:02:41,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-23 01:02:41,991 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 7 states. [2020-12-23 01:02:42,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:42,144 INFO L93 Difference]: Finished difference Result 100 states and 131 transitions. [2020-12-23 01:02:42,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 01:02:42,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-12-23 01:02:42,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:42,145 INFO L225 Difference]: With dead ends: 100 [2020-12-23 01:02:42,146 INFO L226 Difference]: Without dead ends: 75 [2020-12-23 01:02:42,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-23 01:02:42,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-12-23 01:02:42,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 59. [2020-12-23 01:02:42,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-23 01:02:42,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2020-12-23 01:02:42,157 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 76 transitions. Word has length 27 [2020-12-23 01:02:42,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:42,157 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 76 transitions. [2020-12-23 01:02:42,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 01:02:42,157 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2020-12-23 01:02:42,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-23 01:02:42,159 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:42,159 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:42,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:42,373 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:42,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:42,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1943339208, now seen corresponding path program 1 times [2020-12-23 01:02:42,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:42,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186839980] [2020-12-23 01:02:42,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:42,389 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:42,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [907898963] [2020-12-23 01:02:42,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:02:42,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 57 conjunts are in the unsatisfiable core [2020-12-23 01:02:42,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:42,646 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2020-12-23 01:02:42,648 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:42,690 INFO L625 ElimStorePlain]: treesize reduction 5, result has 87.8 percent of original size [2020-12-23 01:02:42,694 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:42,701 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:36 [2020-12-23 01:02:42,829 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:42,829 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 87 [2020-12-23 01:02:42,834 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:42,874 INFO L625 ElimStorePlain]: treesize reduction 26, result has 65.3 percent of original size [2020-12-23 01:02:42,876 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:42,876 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:49 [2020-12-23 01:02:43,139 INFO L348 Elim1Store]: treesize reduction 25, result has 85.8 percent of original size [2020-12-23 01:02:43,140 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 175 [2020-12-23 01:02:43,146 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:43,208 INFO L625 ElimStorePlain]: treesize reduction 73, result has 49.0 percent of original size [2020-12-23 01:02:43,210 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:43,210 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:70 [2020-12-23 01:02:43,387 INFO L348 Elim1Store]: treesize reduction 74, result has 53.8 percent of original size [2020-12-23 01:02:43,388 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 107 [2020-12-23 01:02:43,394 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:43,437 INFO L625 ElimStorePlain]: treesize reduction 50, result has 50.5 percent of original size [2020-12-23 01:02:43,439 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:43,439 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:51 [2020-12-23 01:02:44,067 INFO L348 Elim1Store]: treesize reduction 27, result has 67.1 percent of original size [2020-12-23 01:02:44,068 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 75 [2020-12-23 01:02:44,072 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:44,088 INFO L625 ElimStorePlain]: treesize reduction 14, result has 41.7 percent of original size [2020-12-23 01:02:44,089 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:44,089 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:73, output treesize:10 [2020-12-23 01:02:44,199 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:02:44,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186839980] [2020-12-23 01:02:44,199 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:44,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907898963] [2020-12-23 01:02:44,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:44,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-12-23 01:02:44,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541774303] [2020-12-23 01:02:44,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-12-23 01:02:44,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:44,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-12-23 01:02:44,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2020-12-23 01:02:44,205 INFO L87 Difference]: Start difference. First operand 59 states and 76 transitions. Second operand 26 states. [2020-12-23 01:02:47,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:47,049 INFO L93 Difference]: Finished difference Result 196 states and 259 transitions. [2020-12-23 01:02:47,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-23 01:02:47,049 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 45 [2020-12-23 01:02:47,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:47,053 INFO L225 Difference]: With dead ends: 196 [2020-12-23 01:02:47,054 INFO L226 Difference]: Without dead ends: 142 [2020-12-23 01:02:47,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=321, Invalid=2229, Unknown=0, NotChecked=0, Total=2550 [2020-12-23 01:02:47,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-12-23 01:02:47,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 93. [2020-12-23 01:02:47,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-23 01:02:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 115 transitions. [2020-12-23 01:02:47,072 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 115 transitions. Word has length 45 [2020-12-23 01:02:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:47,073 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 115 transitions. [2020-12-23 01:02:47,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-12-23 01:02:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2020-12-23 01:02:47,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-23 01:02:47,075 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:47,075 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:47,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-23 01:02:47,290 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:47,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:47,290 INFO L82 PathProgramCache]: Analyzing trace with hash 922052314, now seen corresponding path program 2 times [2020-12-23 01:02:47,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:47,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556753880] [2020-12-23 01:02:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:47,320 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:47,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750420140] [2020-12-23 01:02:47,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:47,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:02:47,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:47,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:02:47,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:47,572 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 32 proven. 24 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-23 01:02:47,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556753880] [2020-12-23 01:02:47,573 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:47,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750420140] [2020-12-23 01:02:47,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:47,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:02:47,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10771587] [2020-12-23 01:02:47,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:02:47,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:47,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:02:47,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:47,575 INFO L87 Difference]: Start difference. First operand 93 states and 115 transitions. Second operand 9 states. [2020-12-23 01:02:47,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:47,807 INFO L93 Difference]: Finished difference Result 248 states and 316 transitions. [2020-12-23 01:02:47,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:02:47,807 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2020-12-23 01:02:47,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:47,809 INFO L225 Difference]: With dead ends: 248 [2020-12-23 01:02:47,809 INFO L226 Difference]: Without dead ends: 177 [2020-12-23 01:02:47,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:02:47,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-12-23 01:02:47,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 139. [2020-12-23 01:02:47,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-12-23 01:02:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 173 transitions. [2020-12-23 01:02:47,835 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 173 transitions. Word has length 47 [2020-12-23 01:02:47,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:47,836 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 173 transitions. [2020-12-23 01:02:47,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:02:47,836 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 173 transitions. [2020-12-23 01:02:47,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-23 01:02:47,838 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:47,838 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:48,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:48,053 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:48,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:48,054 INFO L82 PathProgramCache]: Analyzing trace with hash -123168592, now seen corresponding path program 3 times [2020-12-23 01:02:48,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:48,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199972665] [2020-12-23 01:02:48,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:48,066 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:48,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942775151] [2020-12-23 01:02:48,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:48,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2020-12-23 01:02:48,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:48,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:02:48,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 5 proven. 37 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-23 01:02:48,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199972665] [2020-12-23 01:02:48,352 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:48,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942775151] [2020-12-23 01:02:48,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:48,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:02:48,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377543106] [2020-12-23 01:02:48,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:02:48,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:48,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:02:48,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:48,357 INFO L87 Difference]: Start difference. First operand 139 states and 173 transitions. Second operand 9 states. [2020-12-23 01:02:48,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:48,611 INFO L93 Difference]: Finished difference Result 319 states and 414 transitions. [2020-12-23 01:02:48,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:02:48,612 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2020-12-23 01:02:48,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:48,615 INFO L225 Difference]: With dead ends: 319 [2020-12-23 01:02:48,617 INFO L226 Difference]: Without dead ends: 251 [2020-12-23 01:02:48,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:02:48,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-12-23 01:02:48,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 181. [2020-12-23 01:02:48,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-12-23 01:02:48,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 229 transitions. [2020-12-23 01:02:48,657 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 229 transitions. Word has length 48 [2020-12-23 01:02:48,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:48,658 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 229 transitions. [2020-12-23 01:02:48,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:02:48,661 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 229 transitions. [2020-12-23 01:02:48,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 01:02:48,667 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:48,667 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:48,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:48,882 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:48,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:48,883 INFO L82 PathProgramCache]: Analyzing trace with hash -328109803, now seen corresponding path program 4 times [2020-12-23 01:02:48,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:48,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163728098] [2020-12-23 01:02:48,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:48,902 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:48,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1987192425] [2020-12-23 01:02:48,904 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:48,972 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 01:02:48,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:48,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:02:48,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 50 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 01:02:49,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163728098] [2020-12-23 01:02:49,115 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:49,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987192425] [2020-12-23 01:02:49,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:49,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:02:49,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562153294] [2020-12-23 01:02:49,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:02:49,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:49,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:02:49,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:49,117 INFO L87 Difference]: Start difference. First operand 181 states and 229 transitions. Second operand 9 states. [2020-12-23 01:02:49,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:49,424 INFO L93 Difference]: Finished difference Result 266 states and 320 transitions. [2020-12-23 01:02:49,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 01:02:49,425 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2020-12-23 01:02:49,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:49,427 INFO L225 Difference]: With dead ends: 266 [2020-12-23 01:02:49,427 INFO L226 Difference]: Without dead ends: 191 [2020-12-23 01:02:49,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-12-23 01:02:49,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-12-23 01:02:49,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 173. [2020-12-23 01:02:49,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-12-23 01:02:49,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 217 transitions. [2020-12-23 01:02:49,444 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 217 transitions. Word has length 52 [2020-12-23 01:02:49,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:49,445 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 217 transitions. [2020-12-23 01:02:49,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:02:49,445 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 217 transitions. [2020-12-23 01:02:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-23 01:02:49,446 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:49,446 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:49,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-23 01:02:49,661 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:49,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:49,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1533812966, now seen corresponding path program 5 times [2020-12-23 01:02:49,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:49,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204736982] [2020-12-23 01:02:49,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:49,673 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:49,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411652677] [2020-12-23 01:02:49,674 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:49,745 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-23 01:02:49,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:49,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 01:02:49,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:49,912 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 77 proven. 13 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-12-23 01:02:49,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204736982] [2020-12-23 01:02:49,912 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:49,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411652677] [2020-12-23 01:02:49,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:49,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-12-23 01:02:49,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847861628] [2020-12-23 01:02:49,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 01:02:49,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:49,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 01:02:49,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-12-23 01:02:49,915 INFO L87 Difference]: Start difference. First operand 173 states and 217 transitions. Second operand 10 states. [2020-12-23 01:02:50,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:50,179 INFO L93 Difference]: Finished difference Result 379 states and 487 transitions. [2020-12-23 01:02:50,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 01:02:50,180 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-12-23 01:02:50,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:50,182 INFO L225 Difference]: With dead ends: 379 [2020-12-23 01:02:50,182 INFO L226 Difference]: Without dead ends: 217 [2020-12-23 01:02:50,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-12-23 01:02:50,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-12-23 01:02:50,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 162. [2020-12-23 01:02:50,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-23 01:02:50,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 195 transitions. [2020-12-23 01:02:50,198 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 195 transitions. Word has length 58 [2020-12-23 01:02:50,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:50,199 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 195 transitions. [2020-12-23 01:02:50,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 01:02:50,199 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 195 transitions. [2020-12-23 01:02:50,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-23 01:02:50,200 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:50,200 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:50,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:50,415 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:50,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:50,416 INFO L82 PathProgramCache]: Analyzing trace with hash 517171032, now seen corresponding path program 2 times [2020-12-23 01:02:50,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:50,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340411155] [2020-12-23 01:02:50,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:50,427 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:50,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [517049525] [2020-12-23 01:02:50,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:50,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:02:50,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:50,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 01:02:50,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 63 proven. 32 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-23 01:02:50,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340411155] [2020-12-23 01:02:50,619 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 01:02:50,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517049525] [2020-12-23 01:02:50,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:02:50,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-23 01:02:50,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846294246] [2020-12-23 01:02:50,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 01:02:50,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:02:50,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 01:02:50,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 01:02:50,621 INFO L87 Difference]: Start difference. First operand 162 states and 195 transitions. Second operand 9 states. [2020-12-23 01:02:50,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:02:50,801 INFO L93 Difference]: Finished difference Result 253 states and 312 transitions. [2020-12-23 01:02:50,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 01:02:50,801 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2020-12-23 01:02:50,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:02:50,802 INFO L225 Difference]: With dead ends: 253 [2020-12-23 01:02:50,802 INFO L226 Difference]: Without dead ends: 117 [2020-12-23 01:02:50,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-12-23 01:02:50,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-12-23 01:02:50,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 101. [2020-12-23 01:02:50,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-23 01:02:50,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2020-12-23 01:02:50,812 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 58 [2020-12-23 01:02:50,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:02:50,812 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2020-12-23 01:02:50,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 01:02:50,813 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2020-12-23 01:02:50,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-23 01:02:50,813 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:02:50,813 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 5, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:02:51,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:51,027 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:02:51,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:02:51,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1654572962, now seen corresponding path program 6 times [2020-12-23 01:02:51,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:02:51,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054412803] [2020-12-23 01:02:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:02:51,040 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 01:02:51,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [873780108] [2020-12-23 01:02:51,041 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:02:51,417 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2020-12-23 01:02:51,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:02:51,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 100 conjunts are in the unsatisfiable core [2020-12-23 01:02:51,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:02:51,462 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2020-12-23 01:02:51,464 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:51,472 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:51,473 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 01:02:51,474 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:21 [2020-12-23 01:02:51,541 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:51,542 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 81 [2020-12-23 01:02:51,549 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:51,595 INFO L625 ElimStorePlain]: treesize reduction 31, result has 66.3 percent of original size [2020-12-23 01:02:51,599 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:51,599 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:46, output treesize:33 [2020-12-23 01:02:51,662 INFO L348 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2020-12-23 01:02:51,663 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2020-12-23 01:02:51,665 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:51,677 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:51,678 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:51,678 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:41 [2020-12-23 01:02:56,769 INFO L348 Elim1Store]: treesize reduction 21, result has 86.9 percent of original size [2020-12-23 01:02:56,769 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 165 [2020-12-23 01:02:56,774 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:56,851 INFO L625 ElimStorePlain]: treesize reduction 56, result has 54.8 percent of original size [2020-12-23 01:02:56,861 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 01:02:56,862 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:71, output treesize:68 [2020-12-23 01:02:56,928 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 01:02:57,058 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:02:57,485 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-23 01:02:57,514 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:02:57,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:57,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:57,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:57,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:57,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:57,562 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:02:57,562 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 107 [2020-12-23 01:02:57,565 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:57,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:57,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:57,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:02:57,580 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 58 [2020-12-23 01:02:57,582 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:02:57,735 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-23 01:02:57,736 INFO L625 ElimStorePlain]: treesize reduction 25, result has 87.0 percent of original size [2020-12-23 01:02:57,739 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-12-23 01:02:57,739 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:176, output treesize:168 [2020-12-23 01:03:00,735 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:03:00,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,785 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 78 [2020-12-23 01:03:00,787 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:00,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:00,820 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:00,820 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 127 [2020-12-23 01:03:00,825 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:01,027 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-23 01:03:01,028 INFO L625 ElimStorePlain]: treesize reduction 25, result has 89.0 percent of original size [2020-12-23 01:03:01,031 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-12-23 01:03:01,032 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:210, output treesize:202 [2020-12-23 01:03:04,272 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 10, 1] term [2020-12-23 01:03:04,273 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:03:04,286 INFO L443 ElimStorePlain]: Different costs {20=[v_prenex_1], 30=[|v_#memory_int_18|]} [2020-12-23 01:03:04,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,323 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 89 [2020-12-23 01:03:04,326 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:04,438 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-12-23 01:03:04,439 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:04,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:04,480 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:04,481 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 138 [2020-12-23 01:03:04,485 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:04,686 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-23 01:03:04,687 INFO L625 ElimStorePlain]: treesize reduction 12, result has 94.6 percent of original size [2020-12-23 01:03:04,690 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-12-23 01:03:04,690 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:220, output treesize:212 [2020-12-23 01:03:06,918 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 10, 1] term [2020-12-23 01:03:06,918 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:03:10,331 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-12-23 01:03:10,348 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 01:03:10,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,551 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-23 01:03:10,551 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:10,552 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 317 [2020-12-23 01:03:10,563 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:10,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:10,792 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-12-23 01:03:10,792 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:10,793 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 89 treesize of output 393 [2020-12-23 01:03:10,805 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:11,264 WARN L197 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2020-12-23 01:03:11,265 INFO L625 ElimStorePlain]: treesize reduction 362, result has 46.1 percent of original size [2020-12-23 01:03:11,271 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-12-23 01:03:11,271 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:213, output treesize:309 [2020-12-23 01:03:13,574 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 01:03:16,885 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-12-23 01:03:20,503 INFO L639 QuantifierPusher]: Distributing 9 conjuncts over 2 disjuncts [2020-12-23 01:03:20,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,662 INFO L244 Elim1Store]: Index analysis took 115 ms [2020-12-23 01:03:20,840 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-12-23 01:03:20,841 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:20,842 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 95 treesize of output 433 [2020-12-23 01:03:20,859 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:20,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:20,928 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:03:20,989 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 83 [2020-12-23 01:03:20,998 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:21,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,118 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 94 [2020-12-23 01:03:21,121 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:21,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,255 INFO L244 Elim1Store]: Index analysis took 111 ms [2020-12-23 01:03:21,285 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:21,286 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 20 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 122 [2020-12-23 01:03:21,292 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:21,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,435 INFO L244 Elim1Store]: Index analysis took 124 ms [2020-12-23 01:03:21,505 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:21,506 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 225 [2020-12-23 01:03:21,514 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:21,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,586 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:03:21,660 INFO L244 Elim1Store]: Index analysis took 124 ms [2020-12-23 01:03:21,685 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:21,686 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 111 [2020-12-23 01:03:21,691 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:21,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,737 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:03:21,790 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 82 [2020-12-23 01:03:21,792 INFO L547 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:21,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,858 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:03:21,925 INFO L244 Elim1Store]: Index analysis took 114 ms [2020-12-23 01:03:21,954 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:21,955 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 110 [2020-12-23 01:03:21,962 INFO L547 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:21,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:21,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:22,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:22,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:22,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:22,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:22,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:22,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:22,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:22,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:22,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:22,288 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-23 01:03:22,289 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:03:22,289 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 106 treesize of output 529 [2020-12-23 01:03:22,300 INFO L547 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-12-23 01:03:23,845 WARN L197 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 161 DAG size of output: 117 [2020-12-23 01:03:23,846 INFO L625 ElimStorePlain]: treesize reduction 632, result has 64.5 percent of original size [2020-12-23 01:03:23,853 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:03:23,858 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:03:23,860 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 9 xjuncts. [2020-12-23 01:03:23,861 INFO L244 ElimStorePlain]: Needed 10 recursive calls to eliminate 6 variables, input treesize:1138, output treesize:1150 [2020-12-23 01:03:23,869 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:03:23,871 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:03:27,357 WARN L197 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2020-12-23 01:03:27,385 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:03:27,387 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 01:03:29,699 WARN L197 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 138 DAG size of output: 131 [2020-12-23 01:03:33,548 WARN L197 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 142 DAG size of output: 141 [2020-12-23 01:03:33,583 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 12, 14, 1] term [2020-12-23 01:03:33,583 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2020-12-23 01:03:33,631 INFO L443 ElimStorePlain]: Different costs {30=[v_prenex_17, v_prenex_22], 42=[v_prenex_18, v_prenex_15, v_prenex_23, v_prenex_19], 56=[v_prenex_16, |v_#memory_int_21|, v_prenex_25, v_prenex_24, v_prenex_20], 72=[v_prenex_21]} [2020-12-23 01:03:33,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:33,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:33,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:33,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:33,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:33,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:33,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:33,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:33,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:33,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:34,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:34,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:34,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:34,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:03:34,094 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 01:03:34,094 INFO L244 Elim1Store]: Index analysis took 321 ms [2020-12-23 01:03:36,180 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|) |ULTIMATE.start_main_~#array~0.offset|) 1) [2020-12-23 01:03:40,076 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|) (+ (* ULTIMATE.start_main_~column~0 4) (* ULTIMATE.start_main_~row~0 (* ~ARR_SIZE~0 4)) |ULTIMATE.start_main_~#array~0.offset| (- 8))) 1) [2020-12-23 01:03:40,146 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 82 [2020-12-23 01:03:40,149 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 01:04:18,636 WARN L197 SmtUtils]: Spent 38.49 s on a formula simplification that was a NOOP. DAG size: 322 [2020-12-23 01:04:18,637 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:04:18,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:18,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:18,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:18,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:18,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:19,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:19,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:19,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:19,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:19,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:19,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:19,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:19,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:19,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:19,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:04:19,246 INFO L244 Elim1Store]: Index analysis took 474 ms [2020-12-23 01:04:19,629 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 93 [2020-12-23 01:04:19,633 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 01:05:06,255 WARN L197 SmtUtils]: Spent 46.62 s on a formula simplification that was a NOOP. DAG size: 309 [2020-12-23 01:05:06,257 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:05:06,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:06,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:07,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:05:07,027 INFO L244 Elim1Store]: Index analysis took 692 ms [2020-12-23 01:05:07,114 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:05:07,115 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 159 treesize of output 240 [2020-12-23 01:05:07,122 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 01:06:20,219 WARN L197 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 306 DAG size of output: 305 [2020-12-23 01:06:20,221 INFO L625 ElimStorePlain]: treesize reduction 41, result has 98.1 percent of original size [2020-12-23 01:06:20,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 01:06:20,642 INFO L244 Elim1Store]: Index analysis took 335 ms [2020-12-23 01:06:23,083 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|) (+ (* ULTIMATE.start_main_~column~0 4) (* ULTIMATE.start_main_~row~0 (* ~ARR_SIZE~0 4)) |ULTIMATE.start_main_~#array~0.offset| (- 8))) 1) [2020-12-23 01:06:25,117 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|) (+ (* ULTIMATE.start_main_~column~0 4) (* ULTIMATE.start_main_~row~0 (* ~ARR_SIZE~0 4)) |ULTIMATE.start_main_~#array~0.offset| (- 8))) 1) [2020-12-23 01:06:27,901 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 01:06:27,902 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 20 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 121 [2020-12-23 01:06:27,906 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.