/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-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/list-simple/sll2c_append_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:37:11,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:37:11,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:37:11,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:37:11,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:37:11,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:37:11,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:37:11,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:37:11,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:37:11,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:37:11,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:37:11,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:37:11,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:37:11,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:37:11,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:37:11,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:37:11,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:37:11,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:37:11,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:37:11,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:37:11,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:37:11,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:37:11,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:37:11,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:37:11,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-07 05:37:11,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-07 05:37:11,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-07 05:37:11,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-07 05:37:11,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-07 05:37:11,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-07 05:37:11,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:37:11,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:37:11,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:37:11,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:37:11,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:37:11,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:37:11,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:37:11,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:37:11,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:37:11,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:37:11,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:37:11,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:37:11,443 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:37:11,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:37:11,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:37:11,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:37:11,447 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:37:11,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:37:11,448 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:37:11,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:37:11,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:37:11,449 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:37:11,449 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:37:11,449 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:37:11,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:37:11,450 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:37:11,450 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:37:11,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:37:11,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:37:11,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:37:11,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:37:11,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:37:11,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:37:11,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:37:11,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:37:11,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:37:11,454 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:37:11,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:37:11,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:37:11,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:37:11,972 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:37:11,973 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:37:11,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2c_append_equal.i [2021-01-07 05:37:12,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/32b1176c8/d153d50e10644742986c4e811f380669/FLAGdb03c15f0 [2021-01-07 05:37:12,943 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:37:12,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_append_equal.i [2021-01-07 05:37:12,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/32b1176c8/d153d50e10644742986c4e811f380669/FLAGdb03c15f0 [2021-01-07 05:37:13,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/32b1176c8/d153d50e10644742986c4e811f380669 [2021-01-07 05:37:13,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:37:13,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:37:13,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:37:13,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:37:13,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:37:13,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:37:13" (1/1) ... [2021-01-07 05:37:13,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2afbccf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13, skipping insertion in model container [2021-01-07 05:37:13,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:37:13" (1/1) ... [2021-01-07 05:37:13,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:37:13,274 INFO L178 MainTranslator]: Built tables and reachable declarations 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: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~temp~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~temp~0,],offset]]]] 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[~last~0,],base],StructAccessExpression[IdentifierExpression[~last~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~p~0,] 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: address: IdentifierExpression[~head,] left hand side expression in assignment: lhs: VariableLHS[~last~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~last~1,],base],StructAccessExpression[IdentifierExpression[~last~1,],offset]]] 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[~ptr~0,] [2021-01-07 05:37:13,721 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-simple/sll2c_append_equal.i[24433,24446] [2021-01-07 05:37:13,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:37:13,758 INFO L203 MainTranslator]: Completed pre-run 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: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~temp~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~temp~0,],offset]]]] 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[~last~0,],base],StructAccessExpression[IdentifierExpression[~last~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~p~0,] 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: address: IdentifierExpression[~head,] left hand side expression in assignment: lhs: VariableLHS[~last~1,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~last~1,],base],StructAccessExpression[IdentifierExpression[~last~1,],offset]]] 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[~ptr~0,] [2021-01-07 05:37:13,882 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-simple/sll2c_append_equal.i[24433,24446] [2021-01-07 05:37:13,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:37:13,965 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:37:13,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13 WrapperNode [2021-01-07 05:37:13,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:37:13,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:37:13,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:37:13,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:37:13,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13" (1/1) ... [2021-01-07 05:37:14,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13" (1/1) ... [2021-01-07 05:37:14,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:37:14,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:37:14,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:37:14,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:37:14,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13" (1/1) ... [2021-01-07 05:37:14,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13" (1/1) ... [2021-01-07 05:37:14,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13" (1/1) ... [2021-01-07 05:37:14,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13" (1/1) ... [2021-01-07 05:37:14,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13" (1/1) ... [2021-01-07 05:37:14,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13" (1/1) ... [2021-01-07 05:37:14,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13" (1/1) ... [2021-01-07 05:37:14,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:37:14,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:37:14,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:37:14,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:37:14,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13" (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 [2021-01-07 05:37:14,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-07 05:37:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 05:37:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 05:37:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 05:37:14,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:37:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 05:37:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-07 05:37:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-01-07 05:37:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 05:37:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:37:14,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:37:15,420 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:37:15,421 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-01-07 05:37:15,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:37:15 BoogieIcfgContainer [2021-01-07 05:37:15,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:37:15,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:37:15,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:37:15,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:37:15,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:37:13" (1/3) ... [2021-01-07 05:37:15,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a0f974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:37:15, skipping insertion in model container [2021-01-07 05:37:15,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:37:13" (2/3) ... [2021-01-07 05:37:15,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a0f974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:37:15, skipping insertion in model container [2021-01-07 05:37:15,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:37:15" (3/3) ... [2021-01-07 05:37:15,437 INFO L111 eAbstractionObserver]: Analyzing ICFG sll2c_append_equal.i [2021-01-07 05:37:15,445 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:37:15,453 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 58 error locations. [2021-01-07 05:37:15,477 INFO L253 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2021-01-07 05:37:15,508 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:37:15,509 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:37:15,509 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:37:15,509 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:37:15,510 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:37:15,510 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:37:15,510 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:37:15,511 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:37:15,536 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2021-01-07 05:37:15,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-01-07 05:37:15,546 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:15,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-01-07 05:37:15,548 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:15,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:15,557 INFO L82 PathProgramCache]: Analyzing trace with hash 925702, now seen corresponding path program 1 times [2021-01-07 05:37:15,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:15,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119500483] [2021-01-07 05:37:15,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:15,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:15,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119500483] [2021-01-07 05:37:15,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:15,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:37:15,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170896151] [2021-01-07 05:37:15,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:37:15,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:15,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:37:15,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:37:15,848 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 3 states. [2021-01-07 05:37:16,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:16,063 INFO L93 Difference]: Finished difference Result 139 states and 149 transitions. [2021-01-07 05:37:16,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:37:16,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-01-07 05:37:16,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:16,080 INFO L225 Difference]: With dead ends: 139 [2021-01-07 05:37:16,081 INFO L226 Difference]: Without dead ends: 134 [2021-01-07 05:37:16,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:37:16,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-01-07 05:37:16,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 116. [2021-01-07 05:37:16,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-01-07 05:37:16,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 122 transitions. [2021-01-07 05:37:16,145 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 122 transitions. Word has length 4 [2021-01-07 05:37:16,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:16,146 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 122 transitions. [2021-01-07 05:37:16,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:37:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 122 transitions. [2021-01-07 05:37:16,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-01-07 05:37:16,147 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:16,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-01-07 05:37:16,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:37:16,148 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:16,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:16,150 INFO L82 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2021-01-07 05:37:16,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:16,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680819012] [2021-01-07 05:37:16,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:16,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:16,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680819012] [2021-01-07 05:37:16,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:16,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:37:16,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388154398] [2021-01-07 05:37:16,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:37:16,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:16,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:37:16,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:37:16,238 INFO L87 Difference]: Start difference. First operand 116 states and 122 transitions. Second operand 3 states. [2021-01-07 05:37:16,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:16,430 INFO L93 Difference]: Finished difference Result 110 states and 116 transitions. [2021-01-07 05:37:16,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:37:16,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-01-07 05:37:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:16,433 INFO L225 Difference]: With dead ends: 110 [2021-01-07 05:37:16,433 INFO L226 Difference]: Without dead ends: 110 [2021-01-07 05:37:16,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:37:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-01-07 05:37:16,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2021-01-07 05:37:16,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2021-01-07 05:37:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 116 transitions. [2021-01-07 05:37:16,459 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 116 transitions. Word has length 4 [2021-01-07 05:37:16,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:16,460 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 116 transitions. [2021-01-07 05:37:16,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:37:16,460 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 116 transitions. [2021-01-07 05:37:16,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-07 05:37:16,461 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:16,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:16,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:37:16,462 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:16,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:16,464 INFO L82 PathProgramCache]: Analyzing trace with hash 2097994085, now seen corresponding path program 1 times [2021-01-07 05:37:16,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:16,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804872343] [2021-01-07 05:37:16,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:16,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:16,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804872343] [2021-01-07 05:37:16,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:16,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:37:16,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329873177] [2021-01-07 05:37:16,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:37:16,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:16,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:37:16,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:37:16,541 INFO L87 Difference]: Start difference. First operand 110 states and 116 transitions. Second operand 3 states. [2021-01-07 05:37:16,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:16,557 INFO L93 Difference]: Finished difference Result 120 states and 126 transitions. [2021-01-07 05:37:16,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:37:16,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-01-07 05:37:16,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:16,560 INFO L225 Difference]: With dead ends: 120 [2021-01-07 05:37:16,560 INFO L226 Difference]: Without dead ends: 120 [2021-01-07 05:37:16,561 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 [2021-01-07 05:37:16,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-01-07 05:37:16,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 111. [2021-01-07 05:37:16,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-01-07 05:37:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 117 transitions. [2021-01-07 05:37:16,574 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 117 transitions. Word has length 9 [2021-01-07 05:37:16,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:16,574 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 117 transitions. [2021-01-07 05:37:16,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:37:16,575 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 117 transitions. [2021-01-07 05:37:16,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-07 05:37:16,575 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:16,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:16,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 05:37:16,576 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:16,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:16,578 INFO L82 PathProgramCache]: Analyzing trace with hash 231455864, now seen corresponding path program 1 times [2021-01-07 05:37:16,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:16,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952771817] [2021-01-07 05:37:16,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:16,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952771817] [2021-01-07 05:37:16,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:16,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 05:37:16,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50475239] [2021-01-07 05:37:16,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:37:16,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:16,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:37:16,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:37:16,726 INFO L87 Difference]: Start difference. First operand 111 states and 117 transitions. Second operand 5 states. [2021-01-07 05:37:16,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:16,960 INFO L93 Difference]: Finished difference Result 133 states and 140 transitions. [2021-01-07 05:37:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:37:16,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-01-07 05:37:16,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:16,963 INFO L225 Difference]: With dead ends: 133 [2021-01-07 05:37:16,963 INFO L226 Difference]: Without dead ends: 133 [2021-01-07 05:37:16,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:37:16,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-01-07 05:37:16,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 110. [2021-01-07 05:37:16,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2021-01-07 05:37:16,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 116 transitions. [2021-01-07 05:37:16,975 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 116 transitions. Word has length 14 [2021-01-07 05:37:16,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:16,976 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 116 transitions. [2021-01-07 05:37:16,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:37:16,976 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 116 transitions. [2021-01-07 05:37:16,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-07 05:37:16,977 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:16,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:16,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 05:37:16,978 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:16,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:16,979 INFO L82 PathProgramCache]: Analyzing trace with hash 231455865, now seen corresponding path program 1 times [2021-01-07 05:37:16,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:16,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123602234] [2021-01-07 05:37:16,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:17,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:17,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123602234] [2021-01-07 05:37:17,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:17,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 05:37:17,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024188965] [2021-01-07 05:37:17,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:37:17,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:17,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:37:17,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:37:17,076 INFO L87 Difference]: Start difference. First operand 110 states and 116 transitions. Second operand 5 states. [2021-01-07 05:37:17,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:17,275 INFO L93 Difference]: Finished difference Result 114 states and 120 transitions. [2021-01-07 05:37:17,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:37:17,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-01-07 05:37:17,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:17,277 INFO L225 Difference]: With dead ends: 114 [2021-01-07 05:37:17,277 INFO L226 Difference]: Without dead ends: 114 [2021-01-07 05:37:17,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:37:17,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-01-07 05:37:17,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2021-01-07 05:37:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-01-07 05:37:17,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 115 transitions. [2021-01-07 05:37:17,287 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 115 transitions. Word has length 14 [2021-01-07 05:37:17,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:17,288 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 115 transitions. [2021-01-07 05:37:17,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:37:17,288 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 115 transitions. [2021-01-07 05:37:17,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:37:17,289 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:17,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:17,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-07 05:37:17,290 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:17,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:17,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1879150547, now seen corresponding path program 1 times [2021-01-07 05:37:17,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:17,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773209074] [2021-01-07 05:37:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:17,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 05:37:17,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773209074] [2021-01-07 05:37:17,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:17,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 05:37:17,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304357539] [2021-01-07 05:37:17,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:37:17,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:17,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:37:17,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:37:17,407 INFO L87 Difference]: Start difference. First operand 109 states and 115 transitions. Second operand 6 states. [2021-01-07 05:37:17,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:17,582 INFO L93 Difference]: Finished difference Result 126 states and 133 transitions. [2021-01-07 05:37:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:37:17,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-01-07 05:37:17,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:17,584 INFO L225 Difference]: With dead ends: 126 [2021-01-07 05:37:17,585 INFO L226 Difference]: Without dead ends: 126 [2021-01-07 05:37:17,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:37:17,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-01-07 05:37:17,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2021-01-07 05:37:17,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-01-07 05:37:17,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 114 transitions. [2021-01-07 05:37:17,593 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 114 transitions. Word has length 17 [2021-01-07 05:37:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:17,594 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 114 transitions. [2021-01-07 05:37:17,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:37:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 114 transitions. [2021-01-07 05:37:17,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:37:17,595 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:17,595 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:17,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-07 05:37:17,596 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:17,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:17,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1879150548, now seen corresponding path program 1 times [2021-01-07 05:37:17,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:17,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130769235] [2021-01-07 05:37:17,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:17,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:17,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130769235] [2021-01-07 05:37:17,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833667979] [2021-01-07 05:37:17,761 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 [2021-01-07 05:37:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:17,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 21 conjunts are in the unsatisfiable core [2021-01-07 05:37:17,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:37:17,985 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:17,987 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2021-01-07 05:37:17,998 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:18,019 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2021-01-07 05:37:18,030 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:37:18,030 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2021-01-07 05:37:18,134 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:18,135 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2021-01-07 05:37:18,140 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:18,164 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2021-01-07 05:37:18,167 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. [2021-01-07 05:37:18,168 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2021-01-07 05:37:18,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 05:37:18,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-07 05:37:18,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-01-07 05:37:18,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389876684] [2021-01-07 05:37:18,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 05:37:18,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:18,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 05:37:18,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-01-07 05:37:18,239 INFO L87 Difference]: Start difference. First operand 108 states and 114 transitions. Second operand 7 states. [2021-01-07 05:37:18,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:18,445 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2021-01-07 05:37:18,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:37:18,445 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2021-01-07 05:37:18,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:18,446 INFO L225 Difference]: With dead ends: 107 [2021-01-07 05:37:18,447 INFO L226 Difference]: Without dead ends: 107 [2021-01-07 05:37:18,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-01-07 05:37:18,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-01-07 05:37:18,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-01-07 05:37:18,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-01-07 05:37:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 113 transitions. [2021-01-07 05:37:18,453 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 113 transitions. Word has length 17 [2021-01-07 05:37:18,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:18,453 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 113 transitions. [2021-01-07 05:37:18,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 05:37:18,453 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 113 transitions. [2021-01-07 05:37:18,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-07 05:37:18,454 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:18,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:18,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-01-07 05:37:18,670 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:18,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:18,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1569462661, now seen corresponding path program 1 times [2021-01-07 05:37:18,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:18,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723961673] [2021-01-07 05:37:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:18,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:18,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723961673] [2021-01-07 05:37:18,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055778146] [2021-01-07 05:37:18,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:37:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:18,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-07 05:37:18,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:37:18,920 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-01-07 05:37:18,922 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 1 case distinctions, treesize of input 9 treesize of output 11 [2021-01-07 05:37:18,925 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:18,930 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:18,933 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. [2021-01-07 05:37:18,935 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2021-01-07 05:37:18,980 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:18,981 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2021-01-07 05:37:18,987 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:19,004 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2021-01-07 05:37:19,007 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. [2021-01-07 05:37:19,007 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2021-01-07 05:37:19,074 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:19,075 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2021-01-07 05:37:19,081 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:19,097 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2021-01-07 05:37:19,100 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. [2021-01-07 05:37:19,101 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2021-01-07 05:37:19,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 05:37:19,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-07 05:37:19,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-01-07 05:37:19,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682649874] [2021-01-07 05:37:19,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:37:19,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:19,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:37:19,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:37:19,132 INFO L87 Difference]: Start difference. First operand 107 states and 113 transitions. Second operand 4 states. [2021-01-07 05:37:19,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:19,269 INFO L93 Difference]: Finished difference Result 117 states and 124 transitions. [2021-01-07 05:37:19,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 05:37:19,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-01-07 05:37:19,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:19,271 INFO L225 Difference]: With dead ends: 117 [2021-01-07 05:37:19,271 INFO L226 Difference]: Without dead ends: 117 [2021-01-07 05:37:19,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:37:19,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-01-07 05:37:19,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 99. [2021-01-07 05:37:19,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2021-01-07 05:37:19,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 105 transitions. [2021-01-07 05:37:19,280 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 105 transitions. Word has length 25 [2021-01-07 05:37:19,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:19,281 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 105 transitions. [2021-01-07 05:37:19,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:37:19,281 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 105 transitions. [2021-01-07 05:37:19,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-07 05:37:19,282 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:19,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:19,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:37:19,496 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:19,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:19,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1569462660, now seen corresponding path program 1 times [2021-01-07 05:37:19,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:19,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269660099] [2021-01-07 05:37:19,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 05:37:19,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269660099] [2021-01-07 05:37:19,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:19,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:37:19,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752136349] [2021-01-07 05:37:19,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:37:19,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:19,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:37:19,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:37:19,697 INFO L87 Difference]: Start difference. First operand 99 states and 105 transitions. Second operand 4 states. [2021-01-07 05:37:19,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:19,895 INFO L93 Difference]: Finished difference Result 91 states and 97 transitions. [2021-01-07 05:37:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:37:19,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-01-07 05:37:19,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:19,906 INFO L225 Difference]: With dead ends: 91 [2021-01-07 05:37:19,906 INFO L226 Difference]: Without dead ends: 91 [2021-01-07 05:37:19,906 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 [2021-01-07 05:37:19,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-01-07 05:37:19,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-01-07 05:37:19,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2021-01-07 05:37:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 97 transitions. [2021-01-07 05:37:19,915 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 97 transitions. Word has length 25 [2021-01-07 05:37:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:19,915 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 97 transitions. [2021-01-07 05:37:19,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:37:19,916 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2021-01-07 05:37:19,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-01-07 05:37:19,920 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:19,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:19,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-07 05:37:19,921 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:19,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:19,922 INFO L82 PathProgramCache]: Analyzing trace with hash -720094788, now seen corresponding path program 1 times [2021-01-07 05:37:19,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:19,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526192504] [2021-01-07 05:37:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:20,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 05:37:20,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526192504] [2021-01-07 05:37:20,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:20,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 05:37:20,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268612459] [2021-01-07 05:37:20,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:37:20,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:20,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:37:20,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:37:20,072 INFO L87 Difference]: Start difference. First operand 91 states and 97 transitions. Second operand 5 states. [2021-01-07 05:37:20,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:20,260 INFO L93 Difference]: Finished difference Result 107 states and 114 transitions. [2021-01-07 05:37:20,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:37:20,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-01-07 05:37:20,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:20,263 INFO L225 Difference]: With dead ends: 107 [2021-01-07 05:37:20,264 INFO L226 Difference]: Without dead ends: 107 [2021-01-07 05:37:20,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:37:20,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-01-07 05:37:20,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 89. [2021-01-07 05:37:20,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2021-01-07 05:37:20,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 95 transitions. [2021-01-07 05:37:20,272 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 95 transitions. Word has length 27 [2021-01-07 05:37:20,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:20,273 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 95 transitions. [2021-01-07 05:37:20,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:37:20,273 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 95 transitions. [2021-01-07 05:37:20,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-01-07 05:37:20,274 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:20,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:20,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-07 05:37:20,275 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:20,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:20,276 INFO L82 PathProgramCache]: Analyzing trace with hash -720094787, now seen corresponding path program 1 times [2021-01-07 05:37:20,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:20,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912623432] [2021-01-07 05:37:20,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:20,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 05:37:20,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912623432] [2021-01-07 05:37:20,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:20,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-07 05:37:20,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551041075] [2021-01-07 05:37:20,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:37:20,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:20,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:37:20,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:37:20,374 INFO L87 Difference]: Start difference. First operand 89 states and 95 transitions. Second operand 6 states. [2021-01-07 05:37:20,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:20,557 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2021-01-07 05:37:20,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:37:20,558 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2021-01-07 05:37:20,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:20,559 INFO L225 Difference]: With dead ends: 87 [2021-01-07 05:37:20,559 INFO L226 Difference]: Without dead ends: 87 [2021-01-07 05:37:20,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:37:20,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-01-07 05:37:20,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-01-07 05:37:20,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-01-07 05:37:20,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2021-01-07 05:37:20,564 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 27 [2021-01-07 05:37:20,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:20,565 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2021-01-07 05:37:20,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:37:20,565 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2021-01-07 05:37:20,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-07 05:37:20,566 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:20,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:20,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-07 05:37:20,567 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:20,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:20,568 INFO L82 PathProgramCache]: Analyzing trace with hash -521108671, now seen corresponding path program 1 times [2021-01-07 05:37:20,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:20,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024202906] [2021-01-07 05:37:20,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:20,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024202906] [2021-01-07 05:37:20,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:20,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-01-07 05:37:20,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881908540] [2021-01-07 05:37:20,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-07 05:37:20,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:20,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-07 05:37:20,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-01-07 05:37:20,863 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 12 states. [2021-01-07 05:37:21,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:21,777 INFO L93 Difference]: Finished difference Result 150 states and 161 transitions. [2021-01-07 05:37:21,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-07 05:37:21,778 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2021-01-07 05:37:21,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:21,780 INFO L225 Difference]: With dead ends: 150 [2021-01-07 05:37:21,780 INFO L226 Difference]: Without dead ends: 150 [2021-01-07 05:37:21,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2021-01-07 05:37:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-01-07 05:37:21,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 86. [2021-01-07 05:37:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2021-01-07 05:37:21,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2021-01-07 05:37:21,785 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 29 [2021-01-07 05:37:21,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:21,786 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2021-01-07 05:37:21,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-07 05:37:21,786 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2021-01-07 05:37:21,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-07 05:37:21,787 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:21,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:21,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-07 05:37:21,788 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:21,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:21,789 INFO L82 PathProgramCache]: Analyzing trace with hash -521108670, now seen corresponding path program 1 times [2021-01-07 05:37:21,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:21,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700418713] [2021-01-07 05:37:21,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:22,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:22,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700418713] [2021-01-07 05:37:22,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:22,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-01-07 05:37:22,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460523818] [2021-01-07 05:37:22,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-07 05:37:22,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:22,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-07 05:37:22,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-01-07 05:37:22,074 INFO L87 Difference]: Start difference. First operand 86 states and 93 transitions. Second operand 12 states. [2021-01-07 05:37:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:23,147 INFO L93 Difference]: Finished difference Result 141 states and 151 transitions. [2021-01-07 05:37:23,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-07 05:37:23,148 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2021-01-07 05:37:23,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:23,149 INFO L225 Difference]: With dead ends: 141 [2021-01-07 05:37:23,149 INFO L226 Difference]: Without dead ends: 141 [2021-01-07 05:37:23,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2021-01-07 05:37:23,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-01-07 05:37:23,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 90. [2021-01-07 05:37:23,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2021-01-07 05:37:23,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2021-01-07 05:37:23,161 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 29 [2021-01-07 05:37:23,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:23,161 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2021-01-07 05:37:23,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-07 05:37:23,162 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2021-01-07 05:37:23,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-07 05:37:23,166 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:23,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:23,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-07 05:37:23,168 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:23,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:23,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1489112074, now seen corresponding path program 1 times [2021-01-07 05:37:23,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:23,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76881538] [2021-01-07 05:37:23,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:23,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 05:37:23,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76881538] [2021-01-07 05:37:23,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:23,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-07 05:37:23,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931802774] [2021-01-07 05:37:23,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-07 05:37:23,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:23,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-07 05:37:23,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:37:23,360 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand 9 states. [2021-01-07 05:37:23,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:23,745 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2021-01-07 05:37:23,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-07 05:37:23,746 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2021-01-07 05:37:23,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:23,750 INFO L225 Difference]: With dead ends: 152 [2021-01-07 05:37:23,750 INFO L226 Difference]: Without dead ends: 152 [2021-01-07 05:37:23,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-01-07 05:37:23,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-01-07 05:37:23,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 92. [2021-01-07 05:37:23,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2021-01-07 05:37:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions. [2021-01-07 05:37:23,755 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 31 [2021-01-07 05:37:23,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:23,757 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions. [2021-01-07 05:37:23,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-07 05:37:23,757 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions. [2021-01-07 05:37:23,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-07 05:37:23,758 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:23,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:23,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-07 05:37:23,759 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:23,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:23,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1489112075, now seen corresponding path program 1 times [2021-01-07 05:37:23,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:23,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118755101] [2021-01-07 05:37:23,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 05:37:23,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118755101] [2021-01-07 05:37:23,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:23,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-07 05:37:23,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612637325] [2021-01-07 05:37:23,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-07 05:37:23,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:23,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-07 05:37:23,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:37:23,971 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand 9 states. [2021-01-07 05:37:24,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:24,430 INFO L93 Difference]: Finished difference Result 134 states and 145 transitions. [2021-01-07 05:37:24,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 05:37:24,431 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2021-01-07 05:37:24,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:24,432 INFO L225 Difference]: With dead ends: 134 [2021-01-07 05:37:24,433 INFO L226 Difference]: Without dead ends: 134 [2021-01-07 05:37:24,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-01-07 05:37:24,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-01-07 05:37:24,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 94. [2021-01-07 05:37:24,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2021-01-07 05:37:24,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 102 transitions. [2021-01-07 05:37:24,438 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 102 transitions. Word has length 31 [2021-01-07 05:37:24,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:24,438 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 102 transitions. [2021-01-07 05:37:24,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-07 05:37:24,438 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 102 transitions. [2021-01-07 05:37:24,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-07 05:37:24,439 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:24,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:24,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-07 05:37:24,440 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:24,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:24,441 INFO L82 PathProgramCache]: Analyzing trace with hash 812597005, now seen corresponding path program 1 times [2021-01-07 05:37:24,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:24,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001015681] [2021-01-07 05:37:24,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:24,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:24,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001015681] [2021-01-07 05:37:24,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:37:24,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-01-07 05:37:24,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826376709] [2021-01-07 05:37:24,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-07 05:37:24,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:24,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-07 05:37:24,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-01-07 05:37:24,741 INFO L87 Difference]: Start difference. First operand 94 states and 102 transitions. Second operand 12 states. [2021-01-07 05:37:25,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:37:25,270 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2021-01-07 05:37:25,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-07 05:37:25,271 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2021-01-07 05:37:25,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:37:25,272 INFO L225 Difference]: With dead ends: 92 [2021-01-07 05:37:25,272 INFO L226 Difference]: Without dead ends: 92 [2021-01-07 05:37:25,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2021-01-07 05:37:25,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-01-07 05:37:25,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 87. [2021-01-07 05:37:25,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-01-07 05:37:25,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2021-01-07 05:37:25,277 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 33 [2021-01-07 05:37:25,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:37:25,277 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2021-01-07 05:37:25,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-07 05:37:25,277 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2021-01-07 05:37:25,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-01-07 05:37:25,278 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:37:25,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:37:25,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-07 05:37:25,279 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:37:25,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:37:25,280 INFO L82 PathProgramCache]: Analyzing trace with hash 850778774, now seen corresponding path program 1 times [2021-01-07 05:37:25,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:37:25,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183954670] [2021-01-07 05:37:25,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:37:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:25,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:25,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183954670] [2021-01-07 05:37:25,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126776465] [2021-01-07 05:37:25,825 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 [2021-01-07 05:37:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:37:26,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 95 conjunts are in the unsatisfiable core [2021-01-07 05:37:26,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:37:26,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:26,315 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-01-07 05:37:26,318 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:26,341 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:26,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:26,350 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 11 [2021-01-07 05:37:26,352 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:26,372 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:26,374 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:37:26,374 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:33 [2021-01-07 05:37:26,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:26,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:26,758 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:26,759 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 [2021-01-07 05:37:26,763 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:26,854 INFO L625 ElimStorePlain]: treesize reduction 14, result has 80.0 percent of original size [2021-01-07 05:37:26,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:26,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:26,878 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:26,879 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 [2021-01-07 05:37:26,887 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:26,977 INFO L625 ElimStorePlain]: treesize reduction 14, result has 79.7 percent of original size [2021-01-07 05:37:26,980 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:37:26,981 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:57, output treesize:55 [2021-01-07 05:37:27,599 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 [2021-01-07 05:37:27,600 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:27,640 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:27,642 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:37:27,643 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:66, output treesize:62 [2021-01-07 05:37:27,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:37:27,994 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:27,995 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 47 [2021-01-07 05:37:28,003 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 1] term [2021-01-07 05:37:28,003 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:37:28,006 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-01-07 05:37:28,114 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2021-01-07 05:37:28,116 INFO L625 ElimStorePlain]: treesize reduction 30, result has 73.0 percent of original size [2021-01-07 05:37:28,126 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. [2021-01-07 05:37:28,126 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:89, output treesize:81 [2021-01-07 05:37:28,502 INFO L443 ElimStorePlain]: Different costs {3=[|v_#length_65|], 10=[|v_#valid_79|]} [2021-01-07 05:37:28,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:28,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:28,528 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:28,529 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 28 treesize of output 30 [2021-01-07 05:37:28,532 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:28,587 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:28,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:28,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:28,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:28,699 INFO L348 Elim1Store]: treesize reduction 20, result has 85.2 percent of original size [2021-01-07 05:37:28,700 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 137 [2021-01-07 05:37:28,705 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:37:28,706 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:37:28,715 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:28,793 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:28,802 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-07 05:37:28,802 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:134, output treesize:121 [2021-01-07 05:37:29,014 INFO L443 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.offset_38|], 12=[|v_#memory_$Pointer$.base_40|]} [2021-01-07 05:37:29,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:29,028 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 [2021-01-07 05:37:29,031 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:29,107 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:29,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:29,122 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:37:29,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:37:29,187 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:29,188 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 95 treesize of output 138 [2021-01-07 05:37:29,196 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:37:29,198 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:37:29,200 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:37:29,202 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:37:29,206 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:37:29,208 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:37:29,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:37:29,218 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:37:29,281 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:29,289 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-07 05:37:29,290 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:143, output treesize:135 [2021-01-07 05:37:29,476 INFO L443 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.offset_39|], 20=[|v_#memory_$Pointer$.base_41|]} [2021-01-07 05:37:29,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:29,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:29,490 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 34 treesize of output 21 [2021-01-07 05:37:29,492 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:29,563 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:29,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:29,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:29,579 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:37:29,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:37:29,715 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-01-07 05:37:29,716 INFO L348 Elim1Store]: treesize reduction 48, result has 63.4 percent of original size [2021-01-07 05:37:29,717 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 110 treesize of output 137 [2021-01-07 05:37:29,725 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:37:29,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:37:29,728 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:37:29,731 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:37:29,733 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:37:29,741 INFO L547 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:37:29,801 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:29,834 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-01-07 05:37:29,835 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:173, output treesize:135 [2021-01-07 05:37:30,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:30,259 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 22 treesize of output 10 [2021-01-07 05:37:30,261 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:37:30,315 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:37:30,332 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-01-07 05:37:30,333 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:146, output treesize:128 [2021-01-07 05:37:30,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:37:30,950 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:37:30,951 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:37:30,952 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:37:31,035 INFO L348 Elim1Store]: treesize reduction 16, result has 80.0 percent of original size [2021-01-07 05:37:31,036 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 7 new quantified variables, introduced 9 case distinctions, treesize of input 102 treesize of output 107 [2021-01-07 05:37:31,042 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:37:31,043 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:37:31,044 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:37:31,045 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-07 05:37:31,047 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:37:31,048 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-07 05:37:31,050 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-07 05:37:31,054 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:37:31,159 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2021-01-07 05:37:31,160 INFO L625 ElimStorePlain]: treesize reduction 3, result has 95.2 percent of original size [2021-01-07 05:37:31,167 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-01-07 05:37:31,167 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:135, output treesize:44 [2021-01-07 05:37:31,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:37:31,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:37:31,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 39 [2021-01-07 05:37:31,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243255197] [2021-01-07 05:37:31,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-01-07 05:37:31,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:37:31,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-01-07 05:37:31,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1425, Unknown=0, NotChecked=0, Total=1560 [2021-01-07 05:37:31,395 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 40 states. [2021-01-07 05:37:31,915 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-01-07 05:37:32,112 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-01-07 05:37:32,511 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-01-07 05:37:32,855 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-01-07 05:37:33,239 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2021-01-07 05:37:35,574 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2021-01-07 05:37:39,538 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2021-01-07 05:37:41,186 WARN L197 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-01-07 05:37:41,778 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 106 [2021-01-07 05:37:47,034 WARN L197 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 143 [2021-01-07 05:37:49,353 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-01-07 05:37:49,877 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-01-07 05:37:50,507 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2021-01-07 05:37:51,096 WARN L197 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2021-01-07 05:37:51,663 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2021-01-07 05:37:56,728 WARN L197 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2021-01-07 05:37:57,307 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2021-01-07 05:37:58,592 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2021-01-07 05:38:00,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:38:00,484 INFO L93 Difference]: Finished difference Result 194 states and 209 transitions. [2021-01-07 05:38:00,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-07 05:38:00,486 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 34 [2021-01-07 05:38:00,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:38:00,488 INFO L225 Difference]: With dead ends: 194 [2021-01-07 05:38:00,488 INFO L226 Difference]: Without dead ends: 194 [2021-01-07 05:38:00,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 738 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=505, Invalid=3151, Unknown=4, NotChecked=0, Total=3660 [2021-01-07 05:38:00,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-01-07 05:38:00,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 113. [2021-01-07 05:38:00,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-01-07 05:38:00,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 122 transitions. [2021-01-07 05:38:00,496 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 122 transitions. Word has length 34 [2021-01-07 05:38:00,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:38:00,496 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 122 transitions. [2021-01-07 05:38:00,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-01-07 05:38:00,496 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 122 transitions. [2021-01-07 05:38:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-01-07 05:38:00,497 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:38:00,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:38:00,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-01-07 05:38:00,713 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:38:00,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:38:00,714 INFO L82 PathProgramCache]: Analyzing trace with hash 850778775, now seen corresponding path program 1 times [2021-01-07 05:38:00,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:38:00,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892397915] [2021-01-07 05:38:00,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:38:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:38:01,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:38:01,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892397915] [2021-01-07 05:38:01,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495182398] [2021-01-07 05:38:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:38:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:38:01,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 105 conjunts are in the unsatisfiable core [2021-01-07 05:38:01,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:38:01,957 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_66|], 1=[|v_#valid_80|]} [2021-01-07 05:38:01,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:01,965 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 11 [2021-01-07 05:38:01,966 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:01,990 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:01,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:02,001 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-01-07 05:38:02,003 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:02,021 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:02,023 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:38:02,023 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:23 [2021-01-07 05:38:02,397 INFO L443 ElimStorePlain]: Different costs {0=[|v_#valid_81|], 3=[|v_#length_67|]} [2021-01-07 05:38:02,405 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 [2021-01-07 05:38:02,407 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:02,458 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:02,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:02,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:02,503 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:02,504 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 [2021-01-07 05:38:02,507 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:02,604 INFO L625 ElimStorePlain]: treesize reduction 14, result has 77.4 percent of original size [2021-01-07 05:38:02,606 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:38:02,606 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:48 [2021-01-07 05:38:03,182 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 [2021-01-07 05:38:03,184 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:03,240 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:03,249 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 [2021-01-07 05:38:03,251 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:03,303 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:03,305 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:38:03,306 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:67, output treesize:59 [2021-01-07 05:38:03,675 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:38:03,697 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:03,697 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 72 [2021-01-07 05:38:03,701 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 1] term [2021-01-07 05:38:03,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:03,705 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-01-07 05:38:03,850 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-01-07 05:38:03,851 INFO L625 ElimStorePlain]: treesize reduction 70, result has 58.6 percent of original size [2021-01-07 05:38:03,890 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:03,890 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 71 [2021-01-07 05:38:03,894 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2021-01-07 05:38:03,895 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:03,898 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-01-07 05:38:04,028 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2021-01-07 05:38:04,029 INFO L625 ElimStorePlain]: treesize reduction 45, result has 66.9 percent of original size [2021-01-07 05:38:04,031 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:38:04,031 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:122, output treesize:91 [2021-01-07 05:38:04,407 INFO L443 ElimStorePlain]: Different costs {1=[|v_#valid_82|], 6=[|v_#length_68|]} [2021-01-07 05:38:04,425 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:04,426 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 15 treesize of output 19 [2021-01-07 05:38:04,429 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:38:04,433 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:04,518 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:04,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:04,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:04,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:04,560 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:04,560 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 2 case distinctions, treesize of input 34 treesize of output 100 [2021-01-07 05:38:04,565 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:04,744 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-07 05:38:04,745 INFO L625 ElimStorePlain]: treesize reduction 38, result has 80.4 percent of original size [2021-01-07 05:38:04,750 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:38:04,750 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:163, output treesize:156 [2021-01-07 05:38:05,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:05,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:38:05,099 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:05,100 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 136 treesize of output 174 [2021-01-07 05:38:05,109 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:05,111 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:05,113 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-07 05:38:05,115 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:05,118 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:38:05,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:38:05,126 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:38:05,334 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-01-07 05:38:05,336 INFO L625 ElimStorePlain]: treesize reduction 48, result has 80.5 percent of original size [2021-01-07 05:38:05,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:05,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:05,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:05,392 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:05,392 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 115 treesize of output 163 [2021-01-07 05:38:05,399 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:05,598 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-07 05:38:05,599 INFO L625 ElimStorePlain]: treesize reduction 72, result has 72.9 percent of original size [2021-01-07 05:38:05,603 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:05,606 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 1 xjuncts. [2021-01-07 05:38:05,607 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:178, output treesize:194 [2021-01-07 05:38:05,611 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:05,817 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:38:05,820 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:38:05,822 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:38:05,825 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:05,828 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:05,831 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-07 05:38:05,833 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2021-01-07 05:38:05,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:05,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:05,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:05,906 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:05,907 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 217 treesize of output 182 [2021-01-07 05:38:05,914 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:05,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:05,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:05,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:05,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:06,031 INFO L348 Elim1Store]: treesize reduction 40, result has 66.1 percent of original size [2021-01-07 05:38:06,032 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 140 [2021-01-07 05:38:06,040 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:06,541 WARN L197 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2021-01-07 05:38:06,547 INFO L625 ElimStorePlain]: treesize reduction 34, result has 92.5 percent of original size [2021-01-07 05:38:06,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:06,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:06,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:38:06,766 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-01-07 05:38:06,767 INFO L348 Elim1Store]: treesize reduction 48, result has 65.5 percent of original size [2021-01-07 05:38:06,768 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 7 new quantified variables, introduced 7 case distinctions, treesize of input 177 treesize of output 187 [2021-01-07 05:38:06,793 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:38:06,794 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:06,795 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:06,797 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:06,799 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:38:06,800 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:38:06,803 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:06,810 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:38:06,922 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-01-07 05:38:06,923 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:06,924 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 188 treesize of output 239 [2021-01-07 05:38:06,935 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[12, 3, 2, 1] term [2021-01-07 05:38:06,936 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-01-07 05:38:06,940 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2021-01-07 05:38:06,943 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2021-01-07 05:38:06,944 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:06,947 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:06,951 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-07 05:38:06,954 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2021-01-07 05:38:06,955 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-07 05:38:06,958 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:06,960 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:06,963 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2021-01-07 05:38:06,965 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-07 05:38:06,967 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2021-01-07 05:38:06,969 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:06,971 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2021-01-07 05:38:06,973 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:06,977 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:06,981 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-07 05:38:06,985 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 16 disjuncts [2021-01-07 05:38:06,987 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:06,990 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:06,993 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-07 05:38:06,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:07,000 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2021-01-07 05:38:07,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-07 05:38:07,004 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2021-01-07 05:38:07,005 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-07 05:38:07,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:07,014 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-07 05:38:07,019 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2021-01-07 05:38:07,020 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:07,023 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-07 05:38:07,026 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-07 05:38:07,031 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:07,033 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2021-01-07 05:38:07,035 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-07 05:38:07,037 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2021-01-07 05:38:07,039 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:07,042 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-07 05:38:07,045 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-07 05:38:07,049 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 17 disjuncts [2021-01-07 05:38:07,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-07 05:38:07,056 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2021-01-07 05:38:07,060 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:07,070 INFO L547 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:38:07,516 WARN L197 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2021-01-07 05:38:07,517 INFO L625 ElimStorePlain]: treesize reduction 36, result has 91.1 percent of original size [2021-01-07 05:38:07,524 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:07,525 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,528 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:07,529 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,531 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:07,533 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,534 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:07,538 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:07,539 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:38:07,542 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:07,544 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:07,547 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,550 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,551 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:07,555 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:07,557 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:07,565 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2021-01-07 05:38:07,565 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:500, output treesize:367 [2021-01-07 05:38:07,571 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:07,571 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,574 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:07,574 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,576 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:07,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,578 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:07,582 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:07,583 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:38:07,585 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:07,587 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:07,589 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,591 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,593 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:07,595 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:07,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:07,969 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-01-07 05:38:07,987 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:07,988 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,991 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:07,992 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,994 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:07,995 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:07,997 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:08,000 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:08,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:38:08,004 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:08,007 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:08,012 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,014 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:08,019 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:08,021 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:08,364 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:08,365 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,367 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:08,368 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,370 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:08,371 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,372 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:08,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:08,377 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:38:08,380 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:08,382 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:08,387 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,389 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,390 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:08,396 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:08,398 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:08,685 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:08,687 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,690 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:08,691 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,693 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:08,694 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,695 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:08,698 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:08,700 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:38:08,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:08,705 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:08,709 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,712 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:08,713 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:08,716 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:08,718 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:09,024 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:09,025 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:09,028 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:09,029 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:09,031 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:09,032 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:09,034 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:09,036 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:09,038 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:38:09,040 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:09,042 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:09,046 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:09,049 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:09,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:09,054 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:09,056 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:09,370 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:09,370 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:09,373 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:38:09,374 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:09,375 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:38:09,377 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:09,378 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:09,381 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:09,383 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:38:09,385 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:09,387 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:09,391 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:09,393 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:09,395 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:38:09,397 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:38:09,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:12,966 WARN L197 SmtUtils]: Spent 3.32 s on a formula simplification that was a NOOP. DAG size: 95 [2021-01-07 05:38:17,516 WARN L197 SmtUtils]: Spent 4.28 s on a formula simplification that was a NOOP. DAG size: 109 [2021-01-07 05:38:40,824 WARN L197 SmtUtils]: Spent 22.99 s on a formula simplification that was a NOOP. DAG size: 118 [2021-01-07 05:38:40,848 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 17, 1] term [2021-01-07 05:38:40,849 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-07 05:38:41,368 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-01-07 05:38:41,389 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-01-07 05:38:41,390 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-07 05:38:41,392 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:41,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-07 05:38:41,407 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 20 disjuncts [2021-01-07 05:38:41,424 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-01-07 05:38:41,426 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2021-01-07 05:38:42,161 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 144 [2021-01-07 05:38:42,180 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-07 05:38:42,206 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-01-07 05:38:42,242 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-07 05:38:42,304 INFO L443 ElimStorePlain]: Different costs {11=[v_prenex_4, v_prenex_5], 12=[|#memory_$Pointer$.base|, |#memory_$Pointer$.offset|], 20=[v_prenex_6, v_prenex_7]} [2021-01-07 05:38:42,318 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:38:42,399 INFO L348 Elim1Store]: treesize reduction 8, result has 86.7 percent of original size [2021-01-07 05:38:42,402 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 135 [2021-01-07 05:38:42,409 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:38:42,411 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2021-01-07 05:38:42,412 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:38:42,414 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2021-01-07 05:38:42,417 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:38:42,418 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:38:42,420 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2021-01-07 05:38:42,424 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:38:42,963 WARN L197 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 133 [2021-01-07 05:38:42,966 INFO L625 ElimStorePlain]: treesize reduction 26, result has 94.9 percent of original size [2021-01-07 05:38:42,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:42,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:42,990 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:42,990 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 6 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 33 [2021-01-07 05:38:42,994 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:42,997 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:43,000 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:38:43,233 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-01-07 05:38:43,234 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:43,245 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:38:43,246 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:38:43,346 INFO L348 Elim1Store]: treesize reduction 8, result has 86.7 percent of original size [2021-01-07 05:38:43,346 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 163 treesize of output 135 [2021-01-07 05:38:43,350 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:38:43,351 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-01-07 05:38:43,352 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2021-01-07 05:38:43,353 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2021-01-07 05:38:43,357 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:38:43,359 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:38:43,362 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-07 05:38:43,362 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:38:43,363 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2021-01-07 05:38:43,366 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:38:43,371 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2021-01-07 05:38:43,377 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:38:43,604 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-01-07 05:38:43,605 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:43,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:43,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:43,634 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:43,636 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 6 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 35 [2021-01-07 05:38:43,641 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:43,644 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:43,647 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-01-07 05:38:44,122 WARN L197 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-01-07 05:38:44,123 INFO L625 ElimStorePlain]: treesize reduction 5, result has 98.4 percent of original size [2021-01-07 05:38:44,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:44,136 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:38:44,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:38:44,318 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-01-07 05:38:44,319 INFO L348 Elim1Store]: treesize reduction 8, result has 92.0 percent of original size [2021-01-07 05:38:44,320 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 9 case distinctions, treesize of input 182 treesize of output 178 [2021-01-07 05:38:44,326 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2021-01-07 05:38:44,329 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:38:44,330 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 10 disjuncts [2021-01-07 05:38:44,333 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 12 disjuncts [2021-01-07 05:38:44,334 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:38:44,337 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2021-01-07 05:38:44,343 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:38:44,346 INFO L547 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:38:44,539 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-01-07 05:38:44,540 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:44,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:44,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:44,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:38:44,583 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:38:44,583 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 60 [2021-01-07 05:38:44,587 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:38:44,588 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-07 05:38:44,589 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-07 05:38:44,591 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-01-07 05:38:44,596 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:38:44,601 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-01-07 05:38:44,893 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-01-07 05:38:44,894 INFO L625 ElimStorePlain]: treesize reduction 37, result has 79.9 percent of original size [2021-01-07 05:38:44,922 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 6 dim-2 vars, End of recursive call: 7 dim-0 vars, and 3 xjuncts. [2021-01-07 05:38:44,922 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 13 variables, input treesize:631, output treesize:123 [2021-01-07 05:38:45,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:38:45,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:38:45,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 23] total 41 [2021-01-07 05:38:45,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022575045] [2021-01-07 05:38:45,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-01-07 05:38:45,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:38:45,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-01-07 05:38:45,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1604, Unknown=0, NotChecked=0, Total=1722 [2021-01-07 05:38:45,445 INFO L87 Difference]: Start difference. First operand 113 states and 122 transitions. Second operand 42 states. [2021-01-07 05:38:46,381 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2021-01-07 05:38:46,657 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2021-01-07 05:38:47,137 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2021-01-07 05:38:47,544 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2021-01-07 05:38:48,020 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2021-01-07 05:38:48,478 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2021-01-07 05:38:48,893 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2021-01-07 05:38:49,416 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-01-07 05:38:50,195 WARN L197 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107 [2021-01-07 05:38:55,492 WARN L197 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2021-01-07 05:39:02,018 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2021-01-07 05:39:08,753 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2021-01-07 05:39:31,585 WARN L197 SmtUtils]: Spent 12.40 s on a formula simplification. DAG size of input: 154 DAG size of output: 104 [2021-01-07 05:39:43,702 WARN L197 SmtUtils]: Spent 9.87 s on a formula simplification. DAG size of input: 168 DAG size of output: 96 [2021-01-07 05:40:04,144 WARN L197 SmtUtils]: Spent 18.38 s on a formula simplification. DAG size of input: 170 DAG size of output: 98 [2021-01-07 05:40:15,204 WARN L197 SmtUtils]: Spent 8.80 s on a formula simplification. DAG size of input: 255 DAG size of output: 145 [2021-01-07 05:40:27,979 WARN L197 SmtUtils]: Spent 8.40 s on a formula simplification. DAG size of input: 186 DAG size of output: 86 [2021-01-07 05:40:42,943 WARN L197 SmtUtils]: Spent 8.67 s on a formula simplification. DAG size of input: 247 DAG size of output: 137 [2021-01-07 05:41:00,165 WARN L197 SmtUtils]: Spent 8.83 s on a formula simplification. DAG size of input: 264 DAG size of output: 154 [2021-01-07 05:41:04,896 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 117 [2021-01-07 05:41:23,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:41:23,068 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2021-01-07 05:41:23,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-07 05:41:23,070 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 34 [2021-01-07 05:41:23,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:41:23,073 INFO L225 Difference]: With dead ends: 144 [2021-01-07 05:41:23,073 INFO L226 Difference]: Without dead ends: 144 [2021-01-07 05:41:23,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 8 SyntacticMatches, 5 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 147.6s TimeCoverageRelationStatistics Valid=545, Invalid=3601, Unknown=14, NotChecked=0, Total=4160 [2021-01-07 05:41:23,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-01-07 05:41:23,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 113. [2021-01-07 05:41:23,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-01-07 05:41:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 121 transitions. [2021-01-07 05:41:23,081 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 121 transitions. Word has length 34 [2021-01-07 05:41:23,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:41:23,081 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 121 transitions. [2021-01-07 05:41:23,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2021-01-07 05:41:23,081 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 121 transitions. [2021-01-07 05:41:23,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-07 05:41:23,082 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:41:23,082 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:41:23,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-07 05:41:23,297 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:41:23,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:41:23,298 INFO L82 PathProgramCache]: Analyzing trace with hash 948510233, now seen corresponding path program 1 times [2021-01-07 05:41:23,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:41:23,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591335848] [2021-01-07 05:41:23,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:41:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:41:23,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-07 05:41:23,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591335848] [2021-01-07 05:41:23,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:41:23,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:41:23,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878604564] [2021-01-07 05:41:23,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:41:23,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:41:23,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:41:23,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:41:23,346 INFO L87 Difference]: Start difference. First operand 113 states and 121 transitions. Second operand 3 states. [2021-01-07 05:41:23,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:41:23,443 INFO L93 Difference]: Finished difference Result 111 states and 119 transitions. [2021-01-07 05:41:23,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:41:23,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2021-01-07 05:41:23,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:41:23,446 INFO L225 Difference]: With dead ends: 111 [2021-01-07 05:41:23,446 INFO L226 Difference]: Without dead ends: 111 [2021-01-07 05:41:23,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:41:23,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-01-07 05:41:23,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2021-01-07 05:41:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-01-07 05:41:23,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 113 transitions. [2021-01-07 05:41:23,449 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 113 transitions. Word has length 37 [2021-01-07 05:41:23,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:41:23,450 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 113 transitions. [2021-01-07 05:41:23,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:41:23,450 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 113 transitions. [2021-01-07 05:41:23,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-07 05:41:23,451 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:41:23,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:41:23,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-07 05:41:23,451 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:41:23,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:41:23,452 INFO L82 PathProgramCache]: Analyzing trace with hash -2005711818, now seen corresponding path program 1 times [2021-01-07 05:41:23,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:41:23,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556207809] [2021-01-07 05:41:23,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:41:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:41:24,044 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2021-01-07 05:41:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:41:24,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556207809] [2021-01-07 05:41:24,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651901851] [2021-01-07 05:41:24,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:41:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:41:24,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 50 conjunts are in the unsatisfiable core [2021-01-07 05:41:24,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:41:24,609 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 [2021-01-07 05:41:24,610 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:41:24,619 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:41:24,620 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:41:24,620 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2021-01-07 05:41:25,030 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:41:25,030 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 21 treesize of output 59 [2021-01-07 05:41:25,033 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:41:25,036 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:41:25,059 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:41:25,060 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:41:25,060 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:40 [2021-01-07 05:41:25,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:41:25,158 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2021-01-07 05:41:25,160 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:41:25,185 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:41:25,186 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:41:25,187 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:47 [2021-01-07 05:41:25,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:41:25,310 INFO L348 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-01-07 05:41:25,311 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 32 [2021-01-07 05:41:25,315 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:41:25,343 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:41:25,345 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:41:25,345 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:66, output treesize:47 [2021-01-07 05:41:26,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:41:26,605 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-07 05:41:26,606 INFO L348 Elim1Store]: treesize reduction 8, result has 94.2 percent of original size [2021-01-07 05:41:26,607 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 68 treesize of output 160 [2021-01-07 05:41:26,612 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-07 05:41:26,613 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:41:26,615 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2021-01-07 05:41:26,615 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-01-07 05:41:26,616 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:41:26,617 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:41:26,618 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-07 05:41:26,619 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:41:26,623 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:41:26,629 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:41:26,630 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:41:26,631 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-07 05:41:26,633 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:41:26,809 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 38 [2021-01-07 05:41:26,810 INFO L625 ElimStorePlain]: treesize reduction 183, result has 29.6 percent of original size [2021-01-07 05:41:26,814 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 1] term [2021-01-07 05:41:26,814 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:41:26,816 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-01-07 05:41:26,816 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:78, output treesize:98