/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/list-ext3-properties/sll_of_sll_nondet_append-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:41:30,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:41:30,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:41:30,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:41:30,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:41:30,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:41:30,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:41:30,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:41:30,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:41:30,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:41:30,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:41:30,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:41:30,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:41:30,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:41:30,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:41:30,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:41:30,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:41:30,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:41:30,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:41:30,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:41:30,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:41:30,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:41:30,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:41:30,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:41:30,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 06:41:30,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:41:30,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:41:30,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:41:30,920 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 06:41:30,984 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:41:30,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:41:30,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:41:30,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:41:30,986 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:41:30,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:41:30,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:41:30,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:41:30,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:41:30,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:41:30,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:41:30,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:41:30,988 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:41:30,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:41:30,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:41:30,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:41:30,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:41:30,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:41:30,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:41:30,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:41:30,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:41:30,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:41:30,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:41:30,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:41:30,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:41:30,992 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:41:31,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:41:31,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:41:31,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:41:31,464 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:41:31,465 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:41:31,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i [2020-12-23 06:41:31,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0ed7f81d7/f93086e25b924ef68718669881a24008/FLAG81be03fa2 [2020-12-23 06:41:32,304 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:41:32,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-1.i [2020-12-23 06:41:32,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0ed7f81d7/f93086e25b924ef68718669881a24008/FLAG81be03fa2 [2020-12-23 06:41:32,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0ed7f81d7/f93086e25b924ef68718669881a24008 [2020-12-23 06:41:32,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:41:32,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:41:32,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:41:32,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:41:32,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:41:32,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:41:32" (1/1) ... [2020-12-23 06:41:32,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bbeab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:32, skipping insertion in model container [2020-12-23 06:41:32,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:41:32" (1/1) ... [2020-12-23 06:41:32,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:41:32,666 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~head~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~new_node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_node~0,],base],StructAccessExpression[IdentifierExpression[~new_node~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~head,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_last~0,],base],StructAccessExpression[IdentifierExpression[~new_last~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~temp~0,],base],StructAccessExpression[IdentifierExpression[~temp~0,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~head,] left hand side expression in assignment: lhs: VariableLHS[~sub_head~0,] left hand side expression in assignment: lhs: VariableLHS[~head,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~j~0,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~ptr~0,] [2020-12-23 06:41:33,104 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/list-ext3-properties/sll_of_sll_nondet_append-1.i[24987,25000] [2020-12-23 06:41:33,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:41:33,136 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_head~0,],base],StructAccessExpression[IdentifierExpression[~new_head~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~head~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~new_node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_node~0,],base],StructAccessExpression[IdentifierExpression[~new_node~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~head,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new_last~0,],base],StructAccessExpression[IdentifierExpression[~new_last~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~temp~0,],base],StructAccessExpression[IdentifierExpression[~temp~0,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~head,] left hand side expression in assignment: lhs: VariableLHS[~sub_head~0,] left hand side expression in assignment: lhs: VariableLHS[~head,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~j~0,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~ptr~0,] [2020-12-23 06:41:33,206 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/list-ext3-properties/sll_of_sll_nondet_append-1.i[24987,25000] [2020-12-23 06:41:33,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:41:33,286 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:41:33,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33 WrapperNode [2020-12-23 06:41:33,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:41:33,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:41:33,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:41:33,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:41:33,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33" (1/1) ... [2020-12-23 06:41:33,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33" (1/1) ... [2020-12-23 06:41:33,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:41:33,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:41:33,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:41:33,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:41:33,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33" (1/1) ... [2020-12-23 06:41:33,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33" (1/1) ... [2020-12-23 06:41:33,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33" (1/1) ... [2020-12-23 06:41:33,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33" (1/1) ... [2020-12-23 06:41:33,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33" (1/1) ... [2020-12-23 06:41:33,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33" (1/1) ... [2020-12-23 06:41:33,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33" (1/1) ... [2020-12-23 06:41:33,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:41:33,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:41:33,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:41:33,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:41:33,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33" (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 06:41:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 06:41:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 06:41:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:41:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 06:41:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 06:41:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-23 06:41:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:41:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:41:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:41:34,240 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:41:34,240 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2020-12-23 06:41:34,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:41:34 BoogieIcfgContainer [2020-12-23 06:41:34,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:41:34,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:41:34,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:41:34,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:41:34,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:41:32" (1/3) ... [2020-12-23 06:41:34,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262ebd18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:41:34, skipping insertion in model container [2020-12-23 06:41:34,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:41:33" (2/3) ... [2020-12-23 06:41:34,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262ebd18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:41:34, skipping insertion in model container [2020-12-23 06:41:34,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:41:34" (3/3) ... [2020-12-23 06:41:34,254 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_of_sll_nondet_append-1.i [2020-12-23 06:41:34,262 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:41:34,268 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:41:34,292 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:41:34,325 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:41:34,326 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:41:34,326 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:41:34,326 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:41:34,327 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:41:34,327 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:41:34,327 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:41:34,327 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:41:34,345 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-12-23 06:41:34,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 06:41:34,352 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:41:34,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:41:34,354 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:41:34,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:41:34,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1882208553, now seen corresponding path program 1 times [2020-12-23 06:41:34,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:41:34,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574671090] [2020-12-23 06:41:34,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:41:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:34,562 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 06:41:34,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574671090] [2020-12-23 06:41:34,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:41:34,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 06:41:34,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8053632] [2020-12-23 06:41:34,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 06:41:34,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:41:34,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 06:41:34,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:41:34,593 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-12-23 06:41:34,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:41:34,620 INFO L93 Difference]: Finished difference Result 84 states and 134 transitions. [2020-12-23 06:41:34,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 06:41:34,623 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-23 06:41:34,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:41:34,635 INFO L225 Difference]: With dead ends: 84 [2020-12-23 06:41:34,636 INFO L226 Difference]: Without dead ends: 33 [2020-12-23 06:41:34,641 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 06:41:34,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-23 06:41:34,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-23 06:41:34,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-23 06:41:34,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2020-12-23 06:41:34,692 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 7 [2020-12-23 06:41:34,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:41:34,693 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2020-12-23 06:41:34,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 06:41:34,694 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2020-12-23 06:41:34,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 06:41:34,695 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:41:34,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:41:34,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:41:34,696 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:41:34,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:41:34,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1810173915, now seen corresponding path program 1 times [2020-12-23 06:41:34,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:41:34,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29059348] [2020-12-23 06:41:34,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:41:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:34,790 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 06:41:34,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29059348] [2020-12-23 06:41:34,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:41:34,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 06:41:34,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429261176] [2020-12-23 06:41:34,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 06:41:34,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:41:34,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 06:41:34,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 06:41:34,796 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2020-12-23 06:41:34,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:41:34,848 INFO L93 Difference]: Finished difference Result 64 states and 86 transitions. [2020-12-23 06:41:34,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 06:41:34,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-23 06:41:34,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:41:34,850 INFO L225 Difference]: With dead ends: 64 [2020-12-23 06:41:34,851 INFO L226 Difference]: Without dead ends: 51 [2020-12-23 06:41:34,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 06:41:34,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-23 06:41:34,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2020-12-23 06:41:34,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-23 06:41:34,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-12-23 06:41:34,860 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 7 [2020-12-23 06:41:34,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:41:34,860 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-12-23 06:41:34,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 06:41:34,861 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-12-23 06:41:34,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 06:41:34,862 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:41:34,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:41:34,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 06:41:34,863 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:41:34,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:41:34,864 INFO L82 PathProgramCache]: Analyzing trace with hash -176325417, now seen corresponding path program 1 times [2020-12-23 06:41:34,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:41:34,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950526427] [2020-12-23 06:41:34,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:41:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 06:41:34,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950526427] [2020-12-23 06:41:34,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:41:34,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 06:41:34,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808977232] [2020-12-23 06:41:34,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 06:41:34,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:41:34,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 06:41:34,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 06:41:34,992 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 4 states. [2020-12-23 06:41:35,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:41:35,072 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions. [2020-12-23 06:41:35,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 06:41:35,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-23 06:41:35,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:41:35,074 INFO L225 Difference]: With dead ends: 62 [2020-12-23 06:41:35,074 INFO L226 Difference]: Without dead ends: 46 [2020-12-23 06:41:35,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 06:41:35,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-23 06:41:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2020-12-23 06:41:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-23 06:41:35,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2020-12-23 06:41:35,083 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 12 [2020-12-23 06:41:35,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:41:35,083 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2020-12-23 06:41:35,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 06:41:35,084 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2020-12-23 06:41:35,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 06:41:35,085 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:41:35,085 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:41:35,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 06:41:35,085 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:41:35,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:41:35,086 INFO L82 PathProgramCache]: Analyzing trace with hash -254202918, now seen corresponding path program 1 times [2020-12-23 06:41:35,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:41:35,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407455792] [2020-12-23 06:41:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:41:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:35,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:41:35,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407455792] [2020-12-23 06:41:35,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:41:35,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 06:41:35,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659672757] [2020-12-23 06:41:35,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 06:41:35,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:41:35,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 06:41:35,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 06:41:35,208 INFO L87 Difference]: Start difference. First operand 38 states and 50 transitions. Second operand 5 states. [2020-12-23 06:41:35,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:41:35,316 INFO L93 Difference]: Finished difference Result 94 states and 124 transitions. [2020-12-23 06:41:35,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 06:41:35,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-12-23 06:41:35,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:41:35,318 INFO L225 Difference]: With dead ends: 94 [2020-12-23 06:41:35,318 INFO L226 Difference]: Without dead ends: 63 [2020-12-23 06:41:35,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-23 06:41:35,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-23 06:41:35,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-12-23 06:41:35,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-23 06:41:35,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 78 transitions. [2020-12-23 06:41:35,329 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 78 transitions. Word has length 23 [2020-12-23 06:41:35,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:41:35,330 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 78 transitions. [2020-12-23 06:41:35,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 06:41:35,330 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 78 transitions. [2020-12-23 06:41:35,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-23 06:41:35,331 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:41:35,332 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:41:35,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 06:41:35,332 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:41:35,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:41:35,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1546151472, now seen corresponding path program 1 times [2020-12-23 06:41:35,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:41:35,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395010073] [2020-12-23 06:41:35,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:41:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:35,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-23 06:41:35,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395010073] [2020-12-23 06:41:35,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153155610] [2020-12-23 06:41:35,426 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 06:41:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:35,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-23 06:41:35,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 06:41:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:41:35,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 06:41:35,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 8 [2020-12-23 06:41:35,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321515760] [2020-12-23 06:41:35,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 06:41:35,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:41:35,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 06:41:35,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-23 06:41:35,704 INFO L87 Difference]: Start difference. First operand 59 states and 78 transitions. Second operand 8 states. [2020-12-23 06:41:36,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:41:36,008 INFO L93 Difference]: Finished difference Result 162 states and 213 transitions. [2020-12-23 06:41:36,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 06:41:36,009 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-12-23 06:41:36,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:41:36,011 INFO L225 Difference]: With dead ends: 162 [2020-12-23 06:41:36,011 INFO L226 Difference]: Without dead ends: 114 [2020-12-23 06:41:36,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=224, Unknown=0, NotChecked=0, Total=342 [2020-12-23 06:41:36,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-12-23 06:41:36,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 68. [2020-12-23 06:41:36,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-23 06:41:36,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2020-12-23 06:41:36,023 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 26 [2020-12-23 06:41:36,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:41:36,024 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2020-12-23 06:41:36,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 06:41:36,024 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2020-12-23 06:41:36,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-23 06:41:36,025 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:41:36,026 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:41:36,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 06:41:36,240 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:41:36,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:41:36,242 INFO L82 PathProgramCache]: Analyzing trace with hash -770683882, now seen corresponding path program 2 times [2020-12-23 06:41:36,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:41:36,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345966878] [2020-12-23 06:41:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:41:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 06:41:36,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345966878] [2020-12-23 06:41:36,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099811668] [2020-12-23 06:41:36,428 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 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 06:41:36,517 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 06:41:36,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 06:41:36,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 06:41:36,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 06:41:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 06:41:36,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 06:41:36,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2020-12-23 06:41:36,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413169597] [2020-12-23 06:41:36,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 06:41:36,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:41:36,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 06:41:36,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 06:41:36,615 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand 4 states. [2020-12-23 06:41:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:41:36,680 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2020-12-23 06:41:36,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 06:41:36,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-12-23 06:41:36,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:41:36,682 INFO L225 Difference]: With dead ends: 83 [2020-12-23 06:41:36,682 INFO L226 Difference]: Without dead ends: 81 [2020-12-23 06:41:36,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-12-23 06:41:36,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-12-23 06:41:36,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 70. [2020-12-23 06:41:36,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-12-23 06:41:36,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2020-12-23 06:41:36,696 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 34 [2020-12-23 06:41:36,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:41:36,696 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2020-12-23 06:41:36,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 06:41:36,697 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2020-12-23 06:41:36,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-23 06:41:36,698 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:41:36,698 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:41:36,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 06:41:36,913 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:41:36,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:41:36,914 INFO L82 PathProgramCache]: Analyzing trace with hash -2123237744, now seen corresponding path program 1 times [2020-12-23 06:41:36,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:41:36,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806375421] [2020-12-23 06:41:36,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:41:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:37,011 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 06:41:37,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806375421] [2020-12-23 06:41:37,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372941268] [2020-12-23 06:41:37,016 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 06:41:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:37,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 06:41:37,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 06:41:37,269 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:41:37,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 06:41:37,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 11 [2020-12-23 06:41:37,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479434189] [2020-12-23 06:41:37,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 06:41:37,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:41:37,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 06:41:37,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-12-23 06:41:37,281 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand 11 states. [2020-12-23 06:41:37,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:41:37,775 INFO L93 Difference]: Finished difference Result 205 states and 262 transitions. [2020-12-23 06:41:37,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 06:41:37,775 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-12-23 06:41:37,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:41:37,777 INFO L225 Difference]: With dead ends: 205 [2020-12-23 06:41:37,777 INFO L226 Difference]: Without dead ends: 168 [2020-12-23 06:41:37,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2020-12-23 06:41:37,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-12-23 06:41:37,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 114. [2020-12-23 06:41:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-12-23 06:41:37,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 143 transitions. [2020-12-23 06:41:37,797 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 143 transitions. Word has length 41 [2020-12-23 06:41:37,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:41:37,797 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 143 transitions. [2020-12-23 06:41:37,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 06:41:37,798 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-12-23 06:41:37,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-23 06:41:37,799 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:41:37,799 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:41:38,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 06:41:38,014 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:41:38,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:41:38,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1388929204, now seen corresponding path program 2 times [2020-12-23 06:41:38,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:41:38,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765589868] [2020-12-23 06:41:38,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:41:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:38,123 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 06:41:38,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765589868] [2020-12-23 06:41:38,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374522436] [2020-12-23 06:41:38,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 06:41:38,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 06:41:38,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 06:41:38,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 06:41:38,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 06:41:38,340 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 06:41:38,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 06:41:38,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2020-12-23 06:41:38,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730067172] [2020-12-23 06:41:38,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 06:41:38,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:41:38,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 06:41:38,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-12-23 06:41:38,344 INFO L87 Difference]: Start difference. First operand 114 states and 143 transitions. Second operand 12 states. [2020-12-23 06:41:38,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:41:38,597 INFO L93 Difference]: Finished difference Result 217 states and 269 transitions. [2020-12-23 06:41:38,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 06:41:38,598 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-12-23 06:41:38,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:41:38,599 INFO L225 Difference]: With dead ends: 217 [2020-12-23 06:41:38,599 INFO L226 Difference]: Without dead ends: 119 [2020-12-23 06:41:38,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-12-23 06:41:38,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-23 06:41:38,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2020-12-23 06:41:38,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-12-23 06:41:38,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 146 transitions. [2020-12-23 06:41:38,613 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 146 transitions. Word has length 46 [2020-12-23 06:41:38,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:41:38,614 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 146 transitions. [2020-12-23 06:41:38,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 06:41:38,614 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 146 transitions. [2020-12-23 06:41:38,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-23 06:41:38,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:41:38,616 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:41:38,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 06:41:38,830 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:41:38,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:41:38,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1728220938, now seen corresponding path program 3 times [2020-12-23 06:41:38,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:41:38,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153382304] [2020-12-23 06:41:38,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:41:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:38,966 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:41:38,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153382304] [2020-12-23 06:41:38,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394887346] [2020-12-23 06:41:38,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 06:41:39,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-12-23 06:41:39,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 06:41:39,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 59 conjunts are in the unsatisfiable core [2020-12-23 06:41:39,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 06:41:39,136 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-12-23 06:41:39,138 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,141 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:39,142 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,142 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 06:41:39,188 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:39,189 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-23 06:41:39,197 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:41:39,202 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,211 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:39,212 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,212 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2020-12-23 06:41:39,356 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:41:39,359 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:41:39,361 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:41:39,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:39,380 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-23 06:41:39,382 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:39,394 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-23 06:41:39,396 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,454 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:39,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:39,468 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-23 06:41:39,470 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:39,482 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-23 06:41:39,483 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,534 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:39,538 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 06:41:39,539 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:101, output treesize:77 [2020-12-23 06:41:39,616 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:41:39,618 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:41:39,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:41:39,635 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-12-23 06:41:39,636 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:39,646 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2020-12-23 06:41:39,648 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,693 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:39,702 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-12-23 06:41:39,704 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:39,713 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2020-12-23 06:41:39,715 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,753 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:39,755 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 06:41:39,755 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:121, output treesize:77 [2020-12-23 06:41:39,820 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 7, 1] term [2020-12-23 06:41:39,820 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:41:39,824 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-12-23 06:41:39,825 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:41:39,843 INFO L443 ElimStorePlain]: Different costs {2=[v_prenex_2, |v_#memory_$Pointer$.base_24|], 4=[|v_#memory_$Pointer$.offset_24|, v_prenex_3]} [2020-12-23 06:41:39,852 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-23 06:41:39,854 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,886 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:39,894 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-23 06:41:39,897 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,931 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:39,944 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2020-12-23 06:41:39,946 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:39,978 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:39,987 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2020-12-23 06:41:39,989 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:40,014 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:40,016 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 06:41:40,017 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:99, output treesize:101 [2020-12-23 06:41:40,089 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:41:40,828 WARN L197 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-23 06:41:40,992 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:41:41,007 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:41:41,023 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:41:41,112 INFO L443 ElimStorePlain]: Different costs {6=[v_prenex_10, |#memory_$Pointer$.base|], 10=[|#memory_$Pointer$.offset|, v_prenex_9]} [2020-12-23 06:41:41,131 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:41,134 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 36 [2020-12-23 06:41:41,136 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:41,166 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:41,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:41,193 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:41,193 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 72 [2020-12-23 06:41:41,197 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 06:41:41,198 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 06:41:41,203 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 06:41:41,224 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:41,243 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:41,244 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 35 [2020-12-23 06:41:41,247 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:41,263 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:41,280 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:41,280 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 42 [2020-12-23 06:41:41,285 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 06:41:41,286 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 06:41:41,289 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:41,296 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:41,299 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-23 06:41:41,299 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:169, output treesize:9 [2020-12-23 06:41:41,359 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 06:41:41,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 06:41:41,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2020-12-23 06:41:41,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770743949] [2020-12-23 06:41:41,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 06:41:41,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:41:41,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 06:41:41,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-12-23 06:41:41,363 INFO L87 Difference]: Start difference. First operand 117 states and 146 transitions. Second operand 20 states. [2020-12-23 06:41:42,343 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-12-23 06:41:42,703 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-12-23 06:41:43,095 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-12-23 06:41:43,418 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-12-23 06:41:43,712 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-12-23 06:41:44,252 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-12-23 06:41:45,187 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-12-23 06:41:45,410 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2020-12-23 06:41:45,833 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-12-23 06:41:46,372 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-12-23 06:41:47,249 WARN L197 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 114 [2020-12-23 06:41:47,923 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 121 [2020-12-23 06:41:48,368 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 105 [2020-12-23 06:41:48,859 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 117 [2020-12-23 06:41:49,373 WARN L197 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 117 [2020-12-23 06:41:49,943 WARN L197 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 124 [2020-12-23 06:41:50,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:41:50,194 INFO L93 Difference]: Finished difference Result 280 states and 347 transitions. [2020-12-23 06:41:50,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-12-23 06:41:50,195 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 49 [2020-12-23 06:41:50,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:41:50,198 INFO L225 Difference]: With dead ends: 280 [2020-12-23 06:41:50,198 INFO L226 Difference]: Without dead ends: 229 [2020-12-23 06:41:50,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=786, Invalid=3504, Unknown=0, NotChecked=0, Total=4290 [2020-12-23 06:41:50,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-12-23 06:41:50,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 164. [2020-12-23 06:41:50,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-12-23 06:41:50,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 208 transitions. [2020-12-23 06:41:50,254 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 208 transitions. Word has length 49 [2020-12-23 06:41:50,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:41:50,256 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 208 transitions. [2020-12-23 06:41:50,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-23 06:41:50,257 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 208 transitions. [2020-12-23 06:41:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 06:41:50,265 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:41:50,265 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:41:50,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 06:41:50,482 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:41:50,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:41:50,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1242542659, now seen corresponding path program 1 times [2020-12-23 06:41:50,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:41:50,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532993744] [2020-12-23 06:41:50,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:41:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:50,679 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 06:41:50,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532993744] [2020-12-23 06:41:50,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797217490] [2020-12-23 06:41:50,680 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 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 06:41:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:50,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 06:41:50,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 06:41:50,889 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 06:41:50,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 06:41:50,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-12-23 06:41:50,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449380878] [2020-12-23 06:41:50,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 06:41:50,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:41:50,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 06:41:50,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-12-23 06:41:50,893 INFO L87 Difference]: Start difference. First operand 164 states and 208 transitions. Second operand 12 states. [2020-12-23 06:41:51,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:41:51,202 INFO L93 Difference]: Finished difference Result 368 states and 471 transitions. [2020-12-23 06:41:51,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 06:41:51,202 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 50 [2020-12-23 06:41:51,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:41:51,204 INFO L225 Difference]: With dead ends: 368 [2020-12-23 06:41:51,204 INFO L226 Difference]: Without dead ends: 251 [2020-12-23 06:41:51,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-12-23 06:41:51,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-12-23 06:41:51,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 167. [2020-12-23 06:41:51,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-12-23 06:41:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 211 transitions. [2020-12-23 06:41:51,237 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 211 transitions. Word has length 50 [2020-12-23 06:41:51,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:41:51,237 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 211 transitions. [2020-12-23 06:41:51,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 06:41:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 211 transitions. [2020-12-23 06:41:51,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 06:41:51,239 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:41:51,240 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:41:51,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 06:41:51,454 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:41:51,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:41:51,455 INFO L82 PathProgramCache]: Analyzing trace with hash 272815509, now seen corresponding path program 2 times [2020-12-23 06:41:51,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:41:51,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880593859] [2020-12-23 06:41:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:41:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:41:52,069 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-23 06:41:52,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880593859] [2020-12-23 06:41:52,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012299509] [2020-12-23 06:41:52,070 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 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 06:41:52,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 06:41:52,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 06:41:52,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 87 conjunts are in the unsatisfiable core [2020-12-23 06:41:52,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 06:41:52,214 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-12-23 06:41:52,215 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:52,224 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:52,225 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:41:52,225 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:23 [2020-12-23 06:41:52,290 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:52,291 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-23 06:41:52,300 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:41:52,303 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:52,318 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:52,319 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:41:52,319 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:38 [2020-12-23 06:41:52,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:52,409 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:52,409 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-23 06:41:52,412 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:52,465 INFO L625 ElimStorePlain]: treesize reduction 14, result has 77.8 percent of original size [2020-12-23 06:41:52,467 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 06:41:52,468 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:49 [2020-12-23 06:41:52,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:52,567 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-23 06:41:52,569 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:52,599 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:52,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:52,606 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-23 06:41:52,608 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:52,636 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:52,639 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 06:41:52,640 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:71, output treesize:46 [2020-12-23 06:41:52,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:52,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:52,763 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:52,764 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 66 [2020-12-23 06:41:52,768 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:52,845 INFO L625 ElimStorePlain]: treesize reduction 28, result has 67.4 percent of original size [2020-12-23 06:41:52,847 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 06:41:52,847 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:59, output treesize:58 [2020-12-23 06:41:52,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:52,999 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-23 06:41:53,000 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,033 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:53,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:53,041 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-23 06:41:53,042 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,076 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:53,079 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,079 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:72, output treesize:50 [2020-12-23 06:41:53,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:53,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:53,183 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:53,183 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 37 [2020-12-23 06:41:53,187 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:41:53,188 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:41:53,191 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,219 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:53,221 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,221 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:50 [2020-12-23 06:41:53,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:53,324 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-23 06:41:53,326 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,357 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:53,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:53,364 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-23 06:41:53,365 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,394 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:53,396 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,396 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:72, output treesize:62 [2020-12-23 06:41:53,573 INFO L443 ElimStorePlain]: Different costs {4=[|v_#memory_$Pointer$.offset_28|], 10=[|v_#memory_$Pointer$.base_28|]} [2020-12-23 06:41:53,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:53,580 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2020-12-23 06:41:53,581 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,619 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:53,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:53,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:41:53,628 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2020-12-23 06:41:53,631 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,705 INFO L625 ElimStorePlain]: treesize reduction 4, result has 95.6 percent of original size [2020-12-23 06:41:53,707 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,708 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:91, output treesize:108 [2020-12-23 06:41:53,804 INFO L443 ElimStorePlain]: Different costs {10=[|v_#memory_$Pointer$.offset_29|], 15=[|v_#memory_$Pointer$.base_29|]} [2020-12-23 06:41:53,809 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2020-12-23 06:41:53,811 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,848 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:53,875 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:53,875 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 92 [2020-12-23 06:41:53,879 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 06:41:53,880 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:41:53,881 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:41:53,886 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,962 INFO L625 ElimStorePlain]: treesize reduction 84, result has 53.3 percent of original size [2020-12-23 06:41:53,963 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:41:53,964 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:118, output treesize:96 [2020-12-23 06:41:54,076 INFO L443 ElimStorePlain]: Different costs {10=[|v_#memory_$Pointer$.offset_30|], 15=[|v_#memory_$Pointer$.base_30|]} [2020-12-23 06:41:54,093 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:54,093 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 54 [2020-12-23 06:41:54,096 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:54,164 INFO L625 ElimStorePlain]: treesize reduction 16, result has 87.1 percent of original size [2020-12-23 06:41:54,209 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:54,209 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 76 treesize of output 123 [2020-12-23 06:41:54,214 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:41:54,215 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:41:54,216 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 06:41:54,223 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:54,288 INFO L625 ElimStorePlain]: treesize reduction 20, result has 84.4 percent of original size [2020-12-23 06:41:54,292 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:54,294 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 06:41:54,295 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:112, output treesize:137 [2020-12-23 06:41:54,296 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:54,413 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:54,516 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:54,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:54,730 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:54,850 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:54,960 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:55,067 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:55,180 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:55,284 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:55,397 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:55,499 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:55,606 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:55,716 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:55,833 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:55,964 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:56,083 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:56,202 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:41:56,204 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:56,206 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-23 06:41:56,211 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:41:56,605 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:56,605 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 47 [2020-12-23 06:41:56,607 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:56,628 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:56,630 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 06:41:56,630 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:161, output treesize:112 [2020-12-23 06:41:56,747 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:56,747 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 83 [2020-12-23 06:41:56,752 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 06:41:56,753 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:41:56,754 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 06:41:56,756 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 06:41:56,762 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 06:41:56,763 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 06:41:56,764 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 06:41:56,766 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:41:56,770 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:41:56,772 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 06:41:56,772 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:113, output treesize:4 [2020-12-23 06:41:56,821 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 06:41:56,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 06:41:56,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 30 [2020-12-23 06:41:56,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437856635] [2020-12-23 06:41:56,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-23 06:41:56,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:41:56,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-23 06:41:56,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2020-12-23 06:41:56,830 INFO L87 Difference]: Start difference. First operand 167 states and 211 transitions. Second operand 30 states. [2020-12-23 06:41:57,578 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-23 06:41:57,830 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2020-12-23 06:41:58,071 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2020-12-23 06:41:58,428 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2020-12-23 06:41:58,937 WARN L197 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 105 [2020-12-23 06:41:59,662 WARN L197 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 140 [2020-12-23 06:41:59,901 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-12-23 06:42:07,487 WARN L197 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 172 [2020-12-23 06:42:07,868 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-12-23 06:42:10,507 WARN L197 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 185 [2020-12-23 06:42:10,687 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-23 06:42:11,002 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-12-23 06:42:27,019 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-12-23 06:42:31,249 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 06:42:31,446 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-12-23 06:42:59,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:42:59,532 INFO L93 Difference]: Finished difference Result 413 states and 512 transitions. [2020-12-23 06:42:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-12-23 06:42:59,533 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 50 [2020-12-23 06:42:59,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:42:59,535 INFO L225 Difference]: With dead ends: 413 [2020-12-23 06:42:59,535 INFO L226 Difference]: Without dead ends: 363 [2020-12-23 06:42:59,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 21 SyntacticMatches, 16 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=679, Invalid=3098, Unknown=5, NotChecked=0, Total=3782 [2020-12-23 06:42:59,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-12-23 06:42:59,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 169. [2020-12-23 06:42:59,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-23 06:42:59,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 213 transitions. [2020-12-23 06:42:59,584 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 213 transitions. Word has length 50 [2020-12-23 06:42:59,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:42:59,585 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 213 transitions. [2020-12-23 06:42:59,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-23 06:42:59,585 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 213 transitions. [2020-12-23 06:42:59,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 06:42:59,586 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:42:59,586 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:42:59,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 06:42:59,801 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:42:59,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:42:59,802 INFO L82 PathProgramCache]: Analyzing trace with hash -2034085866, now seen corresponding path program 3 times [2020-12-23 06:42:59,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:42:59,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4296554] [2020-12-23 06:42:59,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:42:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:43:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 06:43:00,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4296554] [2020-12-23 06:43:00,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126920154] [2020-12-23 06:43:00,656 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 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 06:43:00,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2020-12-23 06:43:00,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 06:43:00,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 97 conjunts are in the unsatisfiable core [2020-12-23 06:43:00,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 06:43:00,887 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-12-23 06:43:00,888 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:00,899 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:00,900 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:43:00,900 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:23 [2020-12-23 06:43:01,059 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:01,060 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-23 06:43:01,061 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:01,111 INFO L625 ElimStorePlain]: treesize reduction 14, result has 72.0 percent of original size [2020-12-23 06:43:01,112 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:43:01,112 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:36 [2020-12-23 06:43:01,309 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:01,310 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 34 [2020-12-23 06:43:01,312 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:01,313 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:43:01,315 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:01,343 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:01,344 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:43:01,345 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:41 [2020-12-23 06:43:01,448 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 06:43:01,449 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:01,477 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:01,478 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:43:01,479 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:49 [2020-12-23 06:43:01,674 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_31|], 2=[|v_#memory_$Pointer$.base_32|]} [2020-12-23 06:43:01,681 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 06:43:01,682 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:01,724 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:01,749 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:01,749 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 39 [2020-12-23 06:43:01,751 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:01,752 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:01,835 INFO L625 ElimStorePlain]: treesize reduction 12, result has 85.0 percent of original size [2020-12-23 06:43:01,839 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:43:01,839 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:71, output treesize:85 [2020-12-23 06:43:02,102 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:02,103 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:02,104 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:02,106 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:02,114 INFO L443 ElimStorePlain]: Different costs {4=[|v_#memory_$Pointer$.offset_32|], 9=[|v_#memory_$Pointer$.base_33|]} [2020-12-23 06:43:02,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:02,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:02,128 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2020-12-23 06:43:02,130 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:02,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:02,157 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:02,157 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 43 [2020-12-23 06:43:02,159 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:02,419 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-23 06:43:02,420 INFO L625 ElimStorePlain]: treesize reduction 16, result has 92.2 percent of original size [2020-12-23 06:43:02,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:02,463 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:02,463 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 51 [2020-12-23 06:43:02,465 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:02,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:02,520 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:02,520 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 90 [2020-12-23 06:43:02,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 06:43:02,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:02,527 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:02,529 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:02,530 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:02,533 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:02,534 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:02,535 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:02,538 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:02,539 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 06:43:02,761 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-23 06:43:02,762 INFO L625 ElimStorePlain]: treesize reduction 24, result has 87.3 percent of original size [2020-12-23 06:43:02,764 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:02,766 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 06:43:02,766 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:190, output treesize:189 [2020-12-23 06:43:02,770 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:02,996 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-12-23 06:43:03,005 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:43:03,007 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:03,008 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:03,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:43:03,010 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:03,011 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:03,012 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 06:43:03,014 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:03,015 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:03,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:03,018 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:03,019 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 06:43:03,024 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:03,029 INFO L443 ElimStorePlain]: Different costs {12=[|v_#memory_$Pointer$.offset_33|], 27=[|v_#memory_$Pointer$.base_34|]} [2020-12-23 06:43:03,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:03,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:03,056 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2020-12-23 06:43:03,058 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:03,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:03,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:03,088 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2020-12-23 06:43:03,090 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:03,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:03,104 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2020-12-23 06:43:03,106 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:03,299 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-23 06:43:03,299 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:03,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:03,344 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:03,345 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 68 [2020-12-23 06:43:03,348 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:03,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:03,389 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:03,390 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 69 [2020-12-23 06:43:03,392 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:03,392 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:03,395 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:03,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:03,478 INFO L348 Elim1Store]: treesize reduction 8, result has 88.7 percent of original size [2020-12-23 06:43:03,478 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 92 treesize of output 107 [2020-12-23 06:43:03,482 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:03,482 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:03,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:03,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:03,485 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:03,486 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:03,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:03,489 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 06:43:03,830 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-12-23 06:43:03,831 INFO L625 ElimStorePlain]: treesize reduction 38, result has 87.8 percent of original size [2020-12-23 06:43:03,836 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 3 xjuncts. [2020-12-23 06:43:03,836 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:380, output treesize:301 [2020-12-23 06:43:04,143 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-23 06:43:04,151 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 14, 1] term [2020-12-23 06:43:04,152 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 06:43:04,155 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 11, 1] term [2020-12-23 06:43:04,155 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 06:43:04,172 INFO L443 ElimStorePlain]: Different costs {4=[|v_#memory_$Pointer$.offset_34|], 7=[v_prenex_18, v_prenex_15], 15=[|v_#memory_$Pointer$.base_35|, v_prenex_19], 21=[v_prenex_16]} [2020-12-23 06:43:04,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:04,195 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 26 treesize of output 28 [2020-12-23 06:43:04,197 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:04,402 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-12-23 06:43:04,402 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:04,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:04,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:04,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:04,431 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 37 treesize of output 42 [2020-12-23 06:43:04,432 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:04,613 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-12-23 06:43:04,613 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:04,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:04,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:04,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:04,644 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2020-12-23 06:43:04,651 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:04,814 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 06:43:04,814 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:04,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:04,865 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:04,866 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 78 [2020-12-23 06:43:04,870 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:04,871 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:04,871 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:04,874 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:05,193 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-12-23 06:43:05,195 INFO L625 ElimStorePlain]: treesize reduction 16, result has 94.9 percent of original size [2020-12-23 06:43:05,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:05,236 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:05,237 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 84 [2020-12-23 06:43:05,240 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:05,537 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-12-23 06:43:05,538 INFO L625 ElimStorePlain]: treesize reduction 48, result has 85.5 percent of original size [2020-12-23 06:43:05,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:05,648 INFO L348 Elim1Store]: treesize reduction 8, result has 90.8 percent of original size [2020-12-23 06:43:05,648 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 89 treesize of output 131 [2020-12-23 06:43:05,653 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 06:43:05,654 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 06:43:05,654 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 06:43:05,655 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:05,656 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:05,656 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:05,657 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:05,658 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:05,660 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 06:43:05,661 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 06:43:05,661 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:05,662 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:05,664 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:05,665 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:05,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:05,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:05,668 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 06:43:05,669 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:05,669 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:05,670 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:05,670 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:05,671 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:05,672 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:05,672 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:05,676 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:05,677 INFO L547 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 06:43:06,105 WARN L197 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2020-12-23 06:43:06,106 INFO L625 ElimStorePlain]: treesize reduction 28, result has 90.1 percent of original size [2020-12-23 06:43:06,111 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 6 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2020-12-23 06:43:06,111 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 10 variables, input treesize:314, output treesize:372 [2020-12-23 06:43:06,366 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-12-23 06:43:06,532 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 12, 1] term [2020-12-23 06:43:06,533 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 06:43:06,871 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 06:43:07,138 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 06:43:07,151 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 06:43:07,153 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 06:43:07,154 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 06:43:07,160 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:07,162 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:07,163 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 06:43:07,165 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 06:43:07,175 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 06:43:07,176 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 06:43:07,190 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:07,192 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:07,193 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 06:43:07,195 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 06:43:07,203 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 06:43:07,205 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 06:43:07,208 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 06:43:07,209 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 06:43:07,219 INFO L443 ElimStorePlain]: Different costs {15=[|#memory_$Pointer$.offset|], 21=[v_prenex_23, v_prenex_22]} [2020-12-23 06:43:07,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:07,296 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:07,297 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 131 [2020-12-23 06:43:07,301 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:07,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:07,359 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:07,360 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 141 [2020-12-23 06:43:07,363 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:07,700 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 120 [2020-12-23 06:43:07,701 INFO L625 ElimStorePlain]: treesize reduction 498, result has 50.9 percent of original size [2020-12-23 06:43:07,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:07,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:07,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:07,770 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:07,770 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 7 case distinctions, treesize of input 133 treesize of output 164 [2020-12-23 06:43:07,773 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:07,881 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-12-23 06:43:07,881 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:07,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:07,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:07,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 06:43:07,948 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:07,948 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 7 case distinctions, treesize of input 133 treesize of output 164 [2020-12-23 06:43:07,952 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:08,034 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:08,039 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2020-12-23 06:43:08,039 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:1253, output treesize:312 [2020-12-23 06:43:08,264 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 06:43:08,271 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 2, 1] term [2020-12-23 06:43:08,272 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 06:43:08,282 INFO L443 ElimStorePlain]: Different costs {6=[v_prenex_25, |#memory_$Pointer$.base|], 10=[v_prenex_24]} [2020-12-23 06:43:08,315 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:08,316 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 99 treesize of output 84 [2020-12-23 06:43:08,319 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:08,319 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:08,320 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 06:43:08,325 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:08,397 INFO L625 ElimStorePlain]: treesize reduction 103, result has 59.9 percent of original size [2020-12-23 06:43:08,437 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 06:43:08,438 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 144 treesize of output 93 [2020-12-23 06:43:08,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 06:43:08,447 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 06:43:08,447 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 06:43:08,448 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 06:43:08,450 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 06:43:08,451 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:08,452 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:08,454 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 06:43:08,455 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 06:43:08,461 INFO L625 ElimStorePlain]: treesize reduction 10, result has 28.6 percent of original size [2020-12-23 06:43:08,461 INFO L515 ElimStorePlain]: Eliminatee v_prenex_24 vanished before elimination [2020-12-23 06:43:08,462 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 06:43:08,462 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:347, output treesize:4 [2020-12-23 06:43:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 06:43:08,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 06:43:08,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 34 [2020-12-23 06:43:08,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796563056] [2020-12-23 06:43:08,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-23 06:43:08,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:43:08,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-23 06:43:08,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1049, Unknown=0, NotChecked=0, Total=1122 [2020-12-23 06:43:08,523 INFO L87 Difference]: Start difference. First operand 169 states and 213 transitions. Second operand 34 states. [2020-12-23 06:43:09,451 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-12-23 06:43:09,758 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-12-23 06:43:10,044 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2020-12-23 06:43:10,510 WARN L197 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2020-12-23 06:43:10,965 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 74 [2020-12-23 06:43:11,671 WARN L197 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 107 [2020-12-23 06:43:48,804 WARN L197 SmtUtils]: Spent 36.94 s on a formula simplification. DAG size of input: 204 DAG size of output: 163 [2020-12-23 06:44:42,728 WARN L197 SmtUtils]: Spent 53.65 s on a formula simplification. DAG size of input: 270 DAG size of output: 220 [2020-12-23 06:45:41,341 WARN L197 SmtUtils]: Spent 58.28 s on a formula simplification. DAG size of input: 276 DAG size of output: 221