/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/dll2c_remove_all.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 17:21:51,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 17:21:51,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 17:21:51,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 17:21:51,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 17:21:51,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 17:21:51,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 17:21:51,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 17:21:51,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 17:21:51,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 17:21:51,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 17:21:51,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 17:21:51,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 17:21:51,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 17:21:51,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 17:21:51,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 17:21:51,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 17:21:51,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 17:21:51,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 17:21:51,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 17:21:51,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 17:21:51,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 17:21:51,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 17:21:51,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 17:21:51,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 17:21:51,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 17:21:51,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 17:21:51,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 17:21:51,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 17:21:51,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 17:21:51,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 17:21:51,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 17:21:51,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 17:21:51,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 17:21:51,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 17:21:51,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 17:21:51,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 17:21:51,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 17:21:51,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 17:21:51,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 17:21:51,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 17:21:51,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-23 17:21:52,017 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 17:21:52,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 17:21:52,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 17:21:52,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 17:21:52,022 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 17:21:52,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 17:21:52,022 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-23 17:21:52,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 17:21:52,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 17:21:52,023 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-23 17:21:52,025 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-23 17:21:52,025 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-23 17:21:52,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 17:21:52,025 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-23 17:21:52,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 17:21:52,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 17:21:52,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 17:21:52,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 17:21:52,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 17:21:52,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 17:21:52,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 17:21:52,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 17:21:52,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 17:21:52,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 17:21:52,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 17:21:52,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 17:21:52,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 17:21:52,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 17:21:52,461 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 17:21:52,462 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 17:21:52,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_remove_all.i [2020-12-23 17:21:52,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/33742cdf4/7c2ababa056145f7965991b1b88aea8f/FLAG62607d42c [2020-12-23 17:21:53,333 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 17:21:53,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_remove_all.i [2020-12-23 17:21:53,355 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/33742cdf4/7c2ababa056145f7965991b1b88aea8f/FLAG62607d42c [2020-12-23 17:21:53,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/33742cdf4/7c2ababa056145f7965991b1b88aea8f [2020-12-23 17:21:53,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 17:21:53,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 17:21:53,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 17:21:53,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 17:21:53,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 17:21:53,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:21:53" (1/1) ... [2020-12-23 17:21:53,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29460d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:53, skipping insertion in model container [2020-12-23 17:21:53,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:21:53" (1/1) ... [2020-12-23 17:21:53,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 17:21:53,664 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[~temp~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],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: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~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: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~head~0,],offset]]]] left hand side expression in assignment: address: IdentifierExpression[~head,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~temp~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~temp~1,],offset]]]] 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: IdentifierExpression[~head,] [2020-12-23 17:21:54,061 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/dll2c_remove_all.i[24169,24182] [2020-12-23 17:21:54,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:21:54,088 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[~temp~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],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: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~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: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~head~0,],offset]]]] left hand side expression in assignment: address: IdentifierExpression[~head,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~temp~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~temp~1,],offset]]]] 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: IdentifierExpression[~head,] [2020-12-23 17:21:54,205 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/dll2c_remove_all.i[24169,24182] [2020-12-23 17:21:54,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:21:54,286 INFO L208 MainTranslator]: Completed translation [2020-12-23 17:21:54,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54 WrapperNode [2020-12-23 17:21:54,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 17:21:54,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 17:21:54,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 17:21:54,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 17:21:54,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54" (1/1) ... [2020-12-23 17:21:54,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54" (1/1) ... [2020-12-23 17:21:54,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 17:21:54,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 17:21:54,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 17:21:54,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 17:21:54,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54" (1/1) ... [2020-12-23 17:21:54,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54" (1/1) ... [2020-12-23 17:21:54,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54" (1/1) ... [2020-12-23 17:21:54,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54" (1/1) ... [2020-12-23 17:21:54,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54" (1/1) ... [2020-12-23 17:21:54,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54" (1/1) ... [2020-12-23 17:21:54,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54" (1/1) ... [2020-12-23 17:21:54,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 17:21:54,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 17:21:54,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 17:21:54,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 17:21:54,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 17:21:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 17:21:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 17:21:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 17:21:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 17:21:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 17:21:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 17:21:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-23 17:21:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 17:21:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 17:21:54,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 17:21:55,173 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 17:21:55,173 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-23 17:21:55,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:21:55 BoogieIcfgContainer [2020-12-23 17:21:55,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 17:21:55,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 17:21:55,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 17:21:55,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 17:21:55,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:21:53" (1/3) ... [2020-12-23 17:21:55,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbd4913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:21:55, skipping insertion in model container [2020-12-23 17:21:55,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:21:54" (2/3) ... [2020-12-23 17:21:55,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbd4913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:21:55, skipping insertion in model container [2020-12-23 17:21:55,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:21:55" (3/3) ... [2020-12-23 17:21:55,186 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2c_remove_all.i [2020-12-23 17:21:55,194 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 17:21:55,200 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 52 error locations. [2020-12-23 17:21:55,226 INFO L253 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2020-12-23 17:21:55,266 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 17:21:55,266 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-23 17:21:55,266 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 17:21:55,266 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 17:21:55,267 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 17:21:55,268 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 17:21:55,268 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 17:21:55,268 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 17:21:55,295 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-12-23 17:21:55,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 17:21:55,303 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:21:55,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 17:21:55,305 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:21:55,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:21:55,313 INFO L82 PathProgramCache]: Analyzing trace with hash 925702, now seen corresponding path program 1 times [2020-12-23 17:21:55,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:21:55,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456312092] [2020-12-23 17:21:55,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:21:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:55,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:55,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456312092] [2020-12-23 17:21:55,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:21:55,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:21:55,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450640987] [2020-12-23 17:21:55,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:21:55,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:21:55,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:21:55,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:21:55,626 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 3 states. [2020-12-23 17:21:55,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:21:55,824 INFO L93 Difference]: Finished difference Result 148 states and 155 transitions. [2020-12-23 17:21:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:21:55,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-23 17:21:55,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:21:55,839 INFO L225 Difference]: With dead ends: 148 [2020-12-23 17:21:55,839 INFO L226 Difference]: Without dead ends: 144 [2020-12-23 17:21:55,841 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 [2020-12-23 17:21:55,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-23 17:21:55,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 95. [2020-12-23 17:21:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-23 17:21:55,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 98 transitions. [2020-12-23 17:21:55,894 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 98 transitions. Word has length 4 [2020-12-23 17:21:55,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:21:55,894 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 98 transitions. [2020-12-23 17:21:55,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:21:55,894 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 98 transitions. [2020-12-23 17:21:55,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 17:21:55,895 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:21:55,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 17:21:55,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 17:21:55,896 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:21:55,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:21:55,897 INFO L82 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2020-12-23 17:21:55,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:21:55,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859439288] [2020-12-23 17:21:55,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:21:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:55,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859439288] [2020-12-23 17:21:55,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:21:55,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:21:55,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041263546] [2020-12-23 17:21:55,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:21:55,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:21:55,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:21:55,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:21:55,963 INFO L87 Difference]: Start difference. First operand 95 states and 98 transitions. Second operand 3 states. [2020-12-23 17:21:56,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:21:56,055 INFO L93 Difference]: Finished difference Result 89 states and 92 transitions. [2020-12-23 17:21:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:21:56,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-23 17:21:56,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:21:56,057 INFO L225 Difference]: With dead ends: 89 [2020-12-23 17:21:56,057 INFO L226 Difference]: Without dead ends: 89 [2020-12-23 17:21:56,058 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 [2020-12-23 17:21:56,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-23 17:21:56,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-12-23 17:21:56,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-23 17:21:56,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2020-12-23 17:21:56,068 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 4 [2020-12-23 17:21:56,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:21:56,068 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2020-12-23 17:21:56,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:21:56,068 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2020-12-23 17:21:56,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 17:21:56,069 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:21:56,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:21:56,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 17:21:56,070 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:21:56,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:21:56,071 INFO L82 PathProgramCache]: Analyzing trace with hash 613332465, now seen corresponding path program 1 times [2020-12-23 17:21:56,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:21:56,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215215230] [2020-12-23 17:21:56,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:21:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:56,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215215230] [2020-12-23 17:21:56,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:21:56,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:21:56,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941641451] [2020-12-23 17:21:56,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:21:56,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:21:56,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:21:56,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:21:56,187 INFO L87 Difference]: Start difference. First operand 89 states and 92 transitions. Second operand 3 states. [2020-12-23 17:21:56,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:21:56,199 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2020-12-23 17:21:56,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:21:56,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-23 17:21:56,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:21:56,201 INFO L225 Difference]: With dead ends: 104 [2020-12-23 17:21:56,201 INFO L226 Difference]: Without dead ends: 104 [2020-12-23 17:21:56,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:21:56,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-23 17:21:56,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 90. [2020-12-23 17:21:56,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-23 17:21:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions. [2020-12-23 17:21:56,211 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 10 [2020-12-23 17:21:56,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:21:56,211 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions. [2020-12-23 17:21:56,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:21:56,211 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions. [2020-12-23 17:21:56,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 17:21:56,212 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:21:56,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:21:56,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 17:21:56,213 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:21:56,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:21:56,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1103137848, now seen corresponding path program 1 times [2020-12-23 17:21:56,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:21:56,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883494566] [2020-12-23 17:21:56,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:21:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:56,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883494566] [2020-12-23 17:21:56,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:21:56,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:21:56,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738016783] [2020-12-23 17:21:56,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:21:56,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:21:56,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:21:56,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:21:56,298 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand 5 states. [2020-12-23 17:21:56,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:21:56,590 INFO L93 Difference]: Finished difference Result 144 states and 149 transitions. [2020-12-23 17:21:56,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:21:56,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-23 17:21:56,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:21:56,593 INFO L225 Difference]: With dead ends: 144 [2020-12-23 17:21:56,593 INFO L226 Difference]: Without dead ends: 144 [2020-12-23 17:21:56,594 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 [2020-12-23 17:21:56,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-23 17:21:56,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 89. [2020-12-23 17:21:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-23 17:21:56,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2020-12-23 17:21:56,619 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 16 [2020-12-23 17:21:56,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:21:56,619 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2020-12-23 17:21:56,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:21:56,619 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2020-12-23 17:21:56,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 17:21:56,623 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:21:56,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:21:56,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 17:21:56,624 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:21:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:21:56,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1103137849, now seen corresponding path program 1 times [2020-12-23 17:21:56,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:21:56,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106195371] [2020-12-23 17:21:56,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:21:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:56,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:56,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106195371] [2020-12-23 17:21:56,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:21:56,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:21:56,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279369607] [2020-12-23 17:21:56,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:21:56,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:21:56,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:21:56,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:21:56,830 INFO L87 Difference]: Start difference. First operand 89 states and 92 transitions. Second operand 5 states. [2020-12-23 17:21:57,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:21:57,007 INFO L93 Difference]: Finished difference Result 94 states and 97 transitions. [2020-12-23 17:21:57,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:21:57,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-23 17:21:57,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:21:57,009 INFO L225 Difference]: With dead ends: 94 [2020-12-23 17:21:57,009 INFO L226 Difference]: Without dead ends: 94 [2020-12-23 17:21:57,009 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 [2020-12-23 17:21:57,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-12-23 17:21:57,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2020-12-23 17:21:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-23 17:21:57,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 91 transitions. [2020-12-23 17:21:57,017 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 91 transitions. Word has length 16 [2020-12-23 17:21:57,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:21:57,017 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 91 transitions. [2020-12-23 17:21:57,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:21:57,017 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 91 transitions. [2020-12-23 17:21:57,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 17:21:57,018 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:21:57,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:21:57,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 17:21:57,019 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:21:57,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:21:57,019 INFO L82 PathProgramCache]: Analyzing trace with hash -741449383, now seen corresponding path program 1 times [2020-12-23 17:21:57,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:21:57,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986557947] [2020-12-23 17:21:57,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:21:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:57,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:57,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986557947] [2020-12-23 17:21:57,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:21:57,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 17:21:57,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846290816] [2020-12-23 17:21:57,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:21:57,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:21:57,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:21:57,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:21:57,190 INFO L87 Difference]: Start difference. First operand 88 states and 91 transitions. Second operand 6 states. [2020-12-23 17:21:57,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:21:57,476 INFO L93 Difference]: Finished difference Result 148 states and 154 transitions. [2020-12-23 17:21:57,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:21:57,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-23 17:21:57,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:21:57,479 INFO L225 Difference]: With dead ends: 148 [2020-12-23 17:21:57,479 INFO L226 Difference]: Without dead ends: 148 [2020-12-23 17:21:57,479 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 [2020-12-23 17:21:57,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-23 17:21:57,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 97. [2020-12-23 17:21:57,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-23 17:21:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2020-12-23 17:21:57,488 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 18 [2020-12-23 17:21:57,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:21:57,489 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2020-12-23 17:21:57,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:21:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2020-12-23 17:21:57,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 17:21:57,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:21:57,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:21:57,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 17:21:57,490 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:21:57,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:21:57,491 INFO L82 PathProgramCache]: Analyzing trace with hash -741449382, now seen corresponding path program 1 times [2020-12-23 17:21:57,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:21:57,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932346223] [2020-12-23 17:21:57,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:21:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:57,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932346223] [2020-12-23 17:21:57,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:21:57,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:21:57,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897442560] [2020-12-23 17:21:57,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:21:57,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:21:57,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:21:57,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:21:57,616 INFO L87 Difference]: Start difference. First operand 97 states and 102 transitions. Second operand 5 states. [2020-12-23 17:21:57,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:21:57,830 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2020-12-23 17:21:57,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:21:57,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-23 17:21:57,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:21:57,831 INFO L225 Difference]: With dead ends: 98 [2020-12-23 17:21:57,832 INFO L226 Difference]: Without dead ends: 98 [2020-12-23 17:21:57,834 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 [2020-12-23 17:21:57,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-23 17:21:57,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-12-23 17:21:57,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-23 17:21:57,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 101 transitions. [2020-12-23 17:21:57,849 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 101 transitions. Word has length 18 [2020-12-23 17:21:57,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:21:57,850 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 101 transitions. [2020-12-23 17:21:57,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:21:57,850 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 101 transitions. [2020-12-23 17:21:57,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-23 17:21:57,851 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:21:57,851 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] [2020-12-23 17:21:57,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 17:21:57,851 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:21:57,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:21:57,852 INFO L82 PathProgramCache]: Analyzing trace with hash 431868768, now seen corresponding path program 1 times [2020-12-23 17:21:57,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:21:57,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810368440] [2020-12-23 17:21:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:21:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:57,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810368440] [2020-12-23 17:21:57,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:21:57,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 17:21:57,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340665884] [2020-12-23 17:21:57,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:21:57,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:21:57,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:21:57,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:21:57,940 INFO L87 Difference]: Start difference. First operand 97 states and 101 transitions. Second operand 6 states. [2020-12-23 17:21:58,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:21:58,060 INFO L93 Difference]: Finished difference Result 98 states and 101 transitions. [2020-12-23 17:21:58,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:21:58,060 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-12-23 17:21:58,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:21:58,061 INFO L225 Difference]: With dead ends: 98 [2020-12-23 17:21:58,061 INFO L226 Difference]: Without dead ends: 98 [2020-12-23 17:21:58,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:21:58,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-23 17:21:58,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-12-23 17:21:58,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-23 17:21:58,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 100 transitions. [2020-12-23 17:21:58,067 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 100 transitions. Word has length 20 [2020-12-23 17:21:58,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:21:58,068 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 100 transitions. [2020-12-23 17:21:58,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:21:58,068 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 100 transitions. [2020-12-23 17:21:58,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 17:21:58,069 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:21:58,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:21:58,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 17:21:58,069 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:21:58,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:21:58,070 INFO L82 PathProgramCache]: Analyzing trace with hash 498265101, now seen corresponding path program 1 times [2020-12-23 17:21:58,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:21:58,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489714213] [2020-12-23 17:21:58,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:21:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:58,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:58,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489714213] [2020-12-23 17:21:58,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587036731] [2020-12-23 17:21:58,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:21:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:58,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 17:21:58,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:21:58,351 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-12-23 17:21:58,352 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 [2020-12-23 17:21:58,354 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:21:58,360 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:21:58,369 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:21:58,370 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-12-23 17:21:58,460 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:21:58,461 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 [2020-12-23 17:21:58,464 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:21:58,486 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2020-12-23 17:21:58,488 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:21:58,489 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2020-12-23 17:21:58,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:58,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:21:58,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2020-12-23 17:21:58,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673750033] [2020-12-23 17:21:58,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:21:58,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:21:58,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:21:58,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:21:58,531 INFO L87 Difference]: Start difference. First operand 97 states and 100 transitions. Second operand 8 states. [2020-12-23 17:21:58,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:21:58,919 INFO L93 Difference]: Finished difference Result 147 states and 152 transitions. [2020-12-23 17:21:58,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 17:21:58,919 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-12-23 17:21:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:21:58,921 INFO L225 Difference]: With dead ends: 147 [2020-12-23 17:21:58,921 INFO L226 Difference]: Without dead ends: 147 [2020-12-23 17:21:58,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-12-23 17:21:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-12-23 17:21:58,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 96. [2020-12-23 17:21:58,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-23 17:21:58,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 99 transitions. [2020-12-23 17:21:58,927 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 99 transitions. Word has length 21 [2020-12-23 17:21:58,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:21:58,927 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 99 transitions. [2020-12-23 17:21:58,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:21:58,927 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 99 transitions. [2020-12-23 17:21:58,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 17:21:58,928 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:21:58,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:21:59,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-23 17:21:59,143 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:21:59,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:21:59,145 INFO L82 PathProgramCache]: Analyzing trace with hash 498265102, now seen corresponding path program 1 times [2020-12-23 17:21:59,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:21:59,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403916976] [2020-12-23 17:21:59,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:21:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:59,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403916976] [2020-12-23 17:21:59,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577844099] [2020-12-23 17:21:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:21:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:21:59,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 17:21:59,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:21:59,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:21:59,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:21:59,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2020-12-23 17:21:59,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121724497] [2020-12-23 17:21:59,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:21:59,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:21:59,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:21:59,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:21:59,450 INFO L87 Difference]: Start difference. First operand 96 states and 99 transitions. Second operand 10 states. [2020-12-23 17:21:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:21:59,794 INFO L93 Difference]: Finished difference Result 162 states and 167 transitions. [2020-12-23 17:21:59,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:21:59,795 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-12-23 17:21:59,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:21:59,796 INFO L225 Difference]: With dead ends: 162 [2020-12-23 17:21:59,796 INFO L226 Difference]: Without dead ends: 162 [2020-12-23 17:21:59,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-23 17:21:59,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-23 17:21:59,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 99. [2020-12-23 17:21:59,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-23 17:21:59,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 103 transitions. [2020-12-23 17:21:59,801 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 103 transitions. Word has length 21 [2020-12-23 17:21:59,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:21:59,802 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 103 transitions. [2020-12-23 17:21:59,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:21:59,802 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 103 transitions. [2020-12-23 17:21:59,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 17:21:59,803 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:21:59,803 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] [2020-12-23 17:22:00,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 17:22:00,019 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:00,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:00,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1733651014, now seen corresponding path program 1 times [2020-12-23 17:22:00,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:00,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254121400] [2020-12-23 17:22:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:00,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:00,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254121400] [2020-12-23 17:22:00,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:00,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 17:22:00,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789849779] [2020-12-23 17:22:00,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:22:00,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:00,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:22:00,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:22:00,139 INFO L87 Difference]: Start difference. First operand 99 states and 103 transitions. Second operand 6 states. [2020-12-23 17:22:00,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:00,430 INFO L93 Difference]: Finished difference Result 146 states and 152 transitions. [2020-12-23 17:22:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:22:00,431 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-23 17:22:00,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:00,432 INFO L225 Difference]: With dead ends: 146 [2020-12-23 17:22:00,432 INFO L226 Difference]: Without dead ends: 146 [2020-12-23 17:22:00,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:22:00,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-12-23 17:22:00,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 97. [2020-12-23 17:22:00,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-23 17:22:00,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 101 transitions. [2020-12-23 17:22:00,437 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 101 transitions. Word has length 22 [2020-12-23 17:22:00,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:00,437 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 101 transitions. [2020-12-23 17:22:00,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:22:00,437 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 101 transitions. [2020-12-23 17:22:00,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 17:22:00,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:00,438 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] [2020-12-23 17:22:00,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 17:22:00,438 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:00,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:00,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1733651013, now seen corresponding path program 1 times [2020-12-23 17:22:00,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:00,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619773905] [2020-12-23 17:22:00,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:00,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:00,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619773905] [2020-12-23 17:22:00,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:00,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 17:22:00,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635999027] [2020-12-23 17:22:00,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 17:22:00,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:00,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 17:22:00,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:22:00,538 INFO L87 Difference]: Start difference. First operand 97 states and 101 transitions. Second operand 6 states. [2020-12-23 17:22:00,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:00,789 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2020-12-23 17:22:00,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:22:00,789 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-23 17:22:00,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:00,790 INFO L225 Difference]: With dead ends: 95 [2020-12-23 17:22:00,790 INFO L226 Difference]: Without dead ends: 95 [2020-12-23 17:22:00,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:22:00,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-12-23 17:22:00,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-12-23 17:22:00,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-23 17:22:00,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 99 transitions. [2020-12-23 17:22:00,795 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 99 transitions. Word has length 22 [2020-12-23 17:22:00,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:00,795 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 99 transitions. [2020-12-23 17:22:00,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 17:22:00,795 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 99 transitions. [2020-12-23 17:22:00,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-23 17:22:00,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:00,797 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] [2020-12-23 17:22:00,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 17:22:00,797 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:00,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:00,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1906895896, now seen corresponding path program 1 times [2020-12-23 17:22:00,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:00,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575057398] [2020-12-23 17:22:00,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:00,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 17:22:00,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575057398] [2020-12-23 17:22:00,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:00,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:22:00,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621195528] [2020-12-23 17:22:00,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:22:00,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:00,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:22:00,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:22:00,856 INFO L87 Difference]: Start difference. First operand 95 states and 99 transitions. Second operand 4 states. [2020-12-23 17:22:00,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:00,870 INFO L93 Difference]: Finished difference Result 145 states and 150 transitions. [2020-12-23 17:22:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:22:00,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-12-23 17:22:00,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:00,872 INFO L225 Difference]: With dead ends: 145 [2020-12-23 17:22:00,872 INFO L226 Difference]: Without dead ends: 145 [2020-12-23 17:22:00,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:22:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-23 17:22:00,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 96. [2020-12-23 17:22:00,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-23 17:22:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 100 transitions. [2020-12-23 17:22:00,877 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 100 transitions. Word has length 26 [2020-12-23 17:22:00,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:00,877 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 100 transitions. [2020-12-23 17:22:00,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:22:00,877 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 100 transitions. [2020-12-23 17:22:00,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-23 17:22:00,878 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:00,878 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] [2020-12-23 17:22:00,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 17:22:00,879 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:00,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:00,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1906895901, now seen corresponding path program 1 times [2020-12-23 17:22:00,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:00,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922249451] [2020-12-23 17:22:00,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:00,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 17:22:00,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922249451] [2020-12-23 17:22:00,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:00,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:22:00,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897499631] [2020-12-23 17:22:00,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:22:00,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:00,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:22:00,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:22:00,961 INFO L87 Difference]: Start difference. First operand 96 states and 100 transitions. Second operand 5 states. [2020-12-23 17:22:01,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:01,125 INFO L93 Difference]: Finished difference Result 129 states and 134 transitions. [2020-12-23 17:22:01,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:22:01,126 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-12-23 17:22:01,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:01,127 INFO L225 Difference]: With dead ends: 129 [2020-12-23 17:22:01,127 INFO L226 Difference]: Without dead ends: 129 [2020-12-23 17:22:01,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:22:01,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-12-23 17:22:01,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 93. [2020-12-23 17:22:01,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-23 17:22:01,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 98 transitions. [2020-12-23 17:22:01,130 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 98 transitions. Word has length 26 [2020-12-23 17:22:01,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:01,131 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 98 transitions. [2020-12-23 17:22:01,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:22:01,131 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 98 transitions. [2020-12-23 17:22:01,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-23 17:22:01,132 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:01,132 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] [2020-12-23 17:22:01,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 17:22:01,132 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:01,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:01,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1906895902, now seen corresponding path program 1 times [2020-12-23 17:22:01,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:01,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512082201] [2020-12-23 17:22:01,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:01,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512082201] [2020-12-23 17:22:01,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991434543] [2020-12-23 17:22:01,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:22:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:01,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-23 17:22:01,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:22:01,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:01,338 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 [2020-12-23 17:22:01,339 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:01,348 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:01,351 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:01,352 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:20 [2020-12-23 17:22:01,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:01,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:01,539 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:01,539 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-23 17:22:01,543 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:01,572 INFO L625 ElimStorePlain]: treesize reduction 14, result has 67.4 percent of original size [2020-12-23 17:22:01,576 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:01,577 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:29 [2020-12-23 17:22:01,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:01,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:22:01,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-12-23 17:22:01,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573187174] [2020-12-23 17:22:01,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 17:22:01,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:01,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 17:22:01,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-23 17:22:01,737 INFO L87 Difference]: Start difference. First operand 93 states and 98 transitions. Second operand 8 states. [2020-12-23 17:22:01,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:01,924 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2020-12-23 17:22:01,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:22:01,924 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-12-23 17:22:01,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:01,926 INFO L225 Difference]: With dead ends: 85 [2020-12-23 17:22:01,926 INFO L226 Difference]: Without dead ends: 85 [2020-12-23 17:22:01,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:22:01,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-12-23 17:22:01,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-12-23 17:22:01,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-12-23 17:22:01,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2020-12-23 17:22:01,930 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 26 [2020-12-23 17:22:01,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:01,930 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2020-12-23 17:22:01,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 17:22:01,930 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2020-12-23 17:22:01,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-23 17:22:01,931 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:01,931 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] [2020-12-23 17:22:02,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-23 17:22:02,141 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:02,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:02,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1015769156, now seen corresponding path program 1 times [2020-12-23 17:22:02,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:02,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435595920] [2020-12-23 17:22:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:02,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435595920] [2020-12-23 17:22:02,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:02,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 17:22:02,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346402728] [2020-12-23 17:22:02,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:22:02,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:02,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:22:02,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:22:02,267 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 10 states. [2020-12-23 17:22:02,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:02,770 INFO L93 Difference]: Finished difference Result 115 states and 120 transitions. [2020-12-23 17:22:02,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 17:22:02,771 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-12-23 17:22:02,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:02,772 INFO L225 Difference]: With dead ends: 115 [2020-12-23 17:22:02,772 INFO L226 Difference]: Without dead ends: 115 [2020-12-23 17:22:02,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-12-23 17:22:02,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-23 17:22:02,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 86. [2020-12-23 17:22:02,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-12-23 17:22:02,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2020-12-23 17:22:02,776 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 27 [2020-12-23 17:22:02,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:02,776 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2020-12-23 17:22:02,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:22:02,777 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2020-12-23 17:22:02,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-23 17:22:02,780 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:02,780 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] [2020-12-23 17:22:02,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 17:22:02,781 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:02,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:02,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1015769155, now seen corresponding path program 1 times [2020-12-23 17:22:02,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:02,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965836554] [2020-12-23 17:22:02,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:02,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965836554] [2020-12-23 17:22:02,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:02,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 17:22:02,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519392830] [2020-12-23 17:22:02,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:22:02,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:02,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:22:02,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:22:02,996 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 10 states. [2020-12-23 17:22:03,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:03,538 INFO L93 Difference]: Finished difference Result 106 states and 111 transitions. [2020-12-23 17:22:03,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 17:22:03,538 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-12-23 17:22:03,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:03,539 INFO L225 Difference]: With dead ends: 106 [2020-12-23 17:22:03,539 INFO L226 Difference]: Without dead ends: 106 [2020-12-23 17:22:03,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-12-23 17:22:03,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-12-23 17:22:03,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 86. [2020-12-23 17:22:03,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-12-23 17:22:03,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2020-12-23 17:22:03,543 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 27 [2020-12-23 17:22:03,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:03,543 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2020-12-23 17:22:03,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:22:03,544 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2020-12-23 17:22:03,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-23 17:22:03,544 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:03,544 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:22:03,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 17:22:03,545 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:03,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:03,545 INFO L82 PathProgramCache]: Analyzing trace with hash 2090471037, now seen corresponding path program 1 times [2020-12-23 17:22:03,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:03,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477999176] [2020-12-23 17:22:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:03,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477999176] [2020-12-23 17:22:03,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751259623] [2020-12-23 17:22:03,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:22:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:03,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 17:22:03,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:22:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:03,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:22:03,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-12-23 17:22:03,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119031213] [2020-12-23 17:22:03,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:22:03,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:03,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:22:03,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:22:03,721 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 4 states. [2020-12-23 17:22:03,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:03,729 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-12-23 17:22:03,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:22:03,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-12-23 17:22:03,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:03,730 INFO L225 Difference]: With dead ends: 73 [2020-12-23 17:22:03,730 INFO L226 Difference]: Without dead ends: 73 [2020-12-23 17:22:03,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:22:03,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-12-23 17:22:03,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-12-23 17:22:03,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-23 17:22:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-12-23 17:22:03,733 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 31 [2020-12-23 17:22:03,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:03,733 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-12-23 17:22:03,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:22:03,733 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-12-23 17:22:03,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 17:22:03,734 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:03,734 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] [2020-12-23 17:22:03,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-23 17:22:03,949 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:03,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:03,950 INFO L82 PathProgramCache]: Analyzing trace with hash 889920199, now seen corresponding path program 1 times [2020-12-23 17:22:03,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:03,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113044904] [2020-12-23 17:22:03,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:04,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:04,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113044904] [2020-12-23 17:22:04,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:04,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 17:22:04,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853956092] [2020-12-23 17:22:04,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:22:04,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:04,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:22:04,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:22:04,066 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 10 states. [2020-12-23 17:22:04,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:04,365 INFO L93 Difference]: Finished difference Result 113 states and 116 transitions. [2020-12-23 17:22:04,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 17:22:04,365 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-12-23 17:22:04,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:04,366 INFO L225 Difference]: With dead ends: 113 [2020-12-23 17:22:04,366 INFO L226 Difference]: Without dead ends: 113 [2020-12-23 17:22:04,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=254, Unknown=0, NotChecked=0, Total=380 [2020-12-23 17:22:04,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-12-23 17:22:04,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 85. [2020-12-23 17:22:04,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-12-23 17:22:04,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-12-23 17:22:04,370 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 32 [2020-12-23 17:22:04,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:04,370 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-12-23 17:22:04,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:22:04,370 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-12-23 17:22:04,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 17:22:04,371 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:04,371 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] [2020-12-23 17:22:04,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 17:22:04,371 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:04,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:04,372 INFO L82 PathProgramCache]: Analyzing trace with hash 889934102, now seen corresponding path program 1 times [2020-12-23 17:22:04,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:04,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492811834] [2020-12-23 17:22:04,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:04,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:04,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492811834] [2020-12-23 17:22:04,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:04,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 17:22:04,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668839322] [2020-12-23 17:22:04,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:22:04,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:04,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:22:04,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:22:04,453 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 10 states. [2020-12-23 17:22:04,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:04,838 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2020-12-23 17:22:04,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 17:22:04,839 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-12-23 17:22:04,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:04,840 INFO L225 Difference]: With dead ends: 111 [2020-12-23 17:22:04,840 INFO L226 Difference]: Without dead ends: 111 [2020-12-23 17:22:04,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2020-12-23 17:22:04,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-12-23 17:22:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 90. [2020-12-23 17:22:04,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-23 17:22:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2020-12-23 17:22:04,844 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 32 [2020-12-23 17:22:04,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:04,844 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2020-12-23 17:22:04,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:22:04,845 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2020-12-23 17:22:04,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 17:22:04,845 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:04,845 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] [2020-12-23 17:22:04,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 17:22:04,846 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:04,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:04,846 INFO L82 PathProgramCache]: Analyzing trace with hash 889934103, now seen corresponding path program 1 times [2020-12-23 17:22:04,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:04,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137978069] [2020-12-23 17:22:04,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:05,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:05,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137978069] [2020-12-23 17:22:05,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:05,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 17:22:05,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139811687] [2020-12-23 17:22:05,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:22:05,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:05,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:22:05,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:22:05,008 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand 10 states. [2020-12-23 17:22:05,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:05,416 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2020-12-23 17:22:05,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 17:22:05,417 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-12-23 17:22:05,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:05,418 INFO L225 Difference]: With dead ends: 102 [2020-12-23 17:22:05,418 INFO L226 Difference]: Without dead ends: 102 [2020-12-23 17:22:05,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2020-12-23 17:22:05,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-12-23 17:22:05,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 90. [2020-12-23 17:22:05,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-23 17:22:05,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 100 transitions. [2020-12-23 17:22:05,421 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 100 transitions. Word has length 32 [2020-12-23 17:22:05,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:05,422 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 100 transitions. [2020-12-23 17:22:05,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:22:05,422 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2020-12-23 17:22:05,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-23 17:22:05,422 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:05,422 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] [2020-12-23 17:22:05,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 17:22:05,423 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:05,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:05,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1817722526, now seen corresponding path program 1 times [2020-12-23 17:22:05,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:05,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320249631] [2020-12-23 17:22:05,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:05,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:05,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320249631] [2020-12-23 17:22:05,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:05,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 17:22:05,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817113981] [2020-12-23 17:22:05,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:22:05,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:05,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:22:05,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:22:05,520 INFO L87 Difference]: Start difference. First operand 90 states and 100 transitions. Second operand 10 states. [2020-12-23 17:22:05,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:05,871 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2020-12-23 17:22:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 17:22:05,871 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-12-23 17:22:05,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:05,872 INFO L225 Difference]: With dead ends: 101 [2020-12-23 17:22:05,872 INFO L226 Difference]: Without dead ends: 101 [2020-12-23 17:22:05,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2020-12-23 17:22:05,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-23 17:22:05,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2020-12-23 17:22:05,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-23 17:22:05,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2020-12-23 17:22:05,876 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 33 [2020-12-23 17:22:05,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:05,876 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2020-12-23 17:22:05,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:22:05,876 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2020-12-23 17:22:05,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-23 17:22:05,876 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:05,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:22:05,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 17:22:05,877 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:05,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:05,878 INFO L82 PathProgramCache]: Analyzing trace with hash 514823593, now seen corresponding path program 1 times [2020-12-23 17:22:05,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:05,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880897610] [2020-12-23 17:22:05,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:05,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880897610] [2020-12-23 17:22:05,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:05,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 17:22:05,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2886291] [2020-12-23 17:22:05,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 17:22:05,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:05,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 17:22:05,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-23 17:22:05,956 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand 10 states. [2020-12-23 17:22:06,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:06,361 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2020-12-23 17:22:06,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 17:22:06,361 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-12-23 17:22:06,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:06,362 INFO L225 Difference]: With dead ends: 108 [2020-12-23 17:22:06,362 INFO L226 Difference]: Without dead ends: 108 [2020-12-23 17:22:06,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2020-12-23 17:22:06,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-12-23 17:22:06,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 94. [2020-12-23 17:22:06,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-23 17:22:06,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 104 transitions. [2020-12-23 17:22:06,368 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 104 transitions. Word has length 34 [2020-12-23 17:22:06,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:06,368 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 104 transitions. [2020-12-23 17:22:06,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 17:22:06,368 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 104 transitions. [2020-12-23 17:22:06,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-23 17:22:06,369 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:06,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:22:06,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 17:22:06,369 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:06,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:06,370 INFO L82 PathProgramCache]: Analyzing trace with hash 528182903, now seen corresponding path program 1 times [2020-12-23 17:22:06,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:06,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696286834] [2020-12-23 17:22:06,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:06,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696286834] [2020-12-23 17:22:06,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765970900] [2020-12-23 17:22:06,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:22:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:07,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 72 conjunts are in the unsatisfiable core [2020-12-23 17:22:07,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:22:07,250 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-12-23 17:22:07,250 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 [2020-12-23 17:22:07,251 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:07,256 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:07,257 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:07,257 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:17 [2020-12-23 17:22:07,480 INFO L348 Elim1Store]: treesize reduction 8, result has 87.3 percent of original size [2020-12-23 17:22:07,480 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 69 [2020-12-23 17:22:07,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:22:07,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:07,495 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:07,509 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:07,512 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:07,512 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:39 [2020-12-23 17:22:07,752 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 17:22:07,753 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:07,775 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:07,777 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:07,778 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:49 [2020-12-23 17:22:07,866 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-12-23 17:22:07,867 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:07,889 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:07,890 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:07,891 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:52 [2020-12-23 17:22:08,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:08,052 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2020-12-23 17:22:08,054 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:08,078 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:08,080 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. [2020-12-23 17:22:08,081 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:66, output treesize:62 [2020-12-23 17:22:08,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:08,187 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:08,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:08,193 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:08,203 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:08,203 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 77 [2020-12-23 17:22:08,206 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:08,229 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:08,231 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. [2020-12-23 17:22:08,232 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:88, output treesize:92 [2020-12-23 17:22:08,704 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 108 [2020-12-23 17:22:08,706 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:08,735 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:08,738 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. [2020-12-23 17:22:08,738 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:174, output treesize:135 [2020-12-23 17:22:09,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:09,172 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:09,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:09,174 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:09,175 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:09,191 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:09,191 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 10 case distinctions, treesize of input 119 treesize of output 65 [2020-12-23 17:22:09,196 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:22:09,199 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:09,214 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:09,221 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:09,221 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:136, output treesize:24 [2020-12-23 17:22:09,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:09,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:22:09,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 38 [2020-12-23 17:22:09,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332725853] [2020-12-23 17:22:09,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-12-23 17:22:09,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:09,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-12-23 17:22:09,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1352, Unknown=0, NotChecked=0, Total=1482 [2020-12-23 17:22:09,339 INFO L87 Difference]: Start difference. First operand 94 states and 104 transitions. Second operand 39 states. [2020-12-23 17:22:10,077 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-12-23 17:22:10,233 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-12-23 17:22:10,421 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-23 17:22:10,626 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2020-12-23 17:22:10,913 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2020-12-23 17:22:11,320 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2020-12-23 17:22:11,899 WARN L197 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 138 [2020-12-23 17:22:12,610 WARN L197 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 146 [2020-12-23 17:22:13,303 WARN L197 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 148 [2020-12-23 17:22:13,960 WARN L197 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 146 [2020-12-23 17:22:14,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:14,744 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2020-12-23 17:22:14,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-23 17:22:14,745 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 34 [2020-12-23 17:22:14,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:14,745 INFO L225 Difference]: With dead ends: 109 [2020-12-23 17:22:14,745 INFO L226 Difference]: Without dead ends: 109 [2020-12-23 17:22:14,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=476, Invalid=2604, Unknown=0, NotChecked=0, Total=3080 [2020-12-23 17:22:14,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-12-23 17:22:14,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 96. [2020-12-23 17:22:14,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-23 17:22:14,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 107 transitions. [2020-12-23 17:22:14,751 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 107 transitions. Word has length 34 [2020-12-23 17:22:14,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:14,751 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 107 transitions. [2020-12-23 17:22:14,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-12-23 17:22:14,751 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 107 transitions. [2020-12-23 17:22:14,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-23 17:22:14,752 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:14,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:22:14,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-23 17:22:14,967 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:14,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:14,968 INFO L82 PathProgramCache]: Analyzing trace with hash 528182904, now seen corresponding path program 1 times [2020-12-23 17:22:14,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:14,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916180482] [2020-12-23 17:22:14,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:15,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916180482] [2020-12-23 17:22:15,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956620302] [2020-12-23 17:22:15,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:22:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:15,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 87 conjunts are in the unsatisfiable core [2020-12-23 17:22:15,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:22:15,522 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_55|], 3=[|v_#valid_70|]} [2020-12-23 17:22:15,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:15,526 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 [2020-12-23 17:22:15,527 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:15,539 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:15,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:15,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:15,547 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 15 treesize of output 14 [2020-12-23 17:22:15,548 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:15,560 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:15,561 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:15,561 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:32 [2020-12-23 17:22:15,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:15,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:15,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:15,796 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2020-12-23 17:22:15,797 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:15,820 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:15,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:15,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:15,832 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:15,832 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 16 treesize of output 18 [2020-12-23 17:22:15,835 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:15,836 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:15,855 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:15,858 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:15,858 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:43 [2020-12-23 17:22:16,150 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 17:22:16,150 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:16,182 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:16,188 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 17:22:16,189 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:16,218 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:16,219 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:16,219 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:68, output treesize:60 [2020-12-23 17:22:16,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:16,320 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 69 [2020-12-23 17:22:16,322 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:16,387 INFO L625 ElimStorePlain]: treesize reduction 15, result has 88.5 percent of original size [2020-12-23 17:22:16,392 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2020-12-23 17:22:16,394 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:16,424 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:16,425 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:16,425 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:139, output treesize:92 [2020-12-23 17:22:16,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:16,640 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2020-12-23 17:22:16,642 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:16,685 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:16,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:16,697 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:16,706 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:16,707 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 72 [2020-12-23 17:22:16,709 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:16,759 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:16,761 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:16,762 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:117, output treesize:110 [2020-12-23 17:22:16,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:16,903 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:16,904 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 78 [2020-12-23 17:22:16,907 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:17,010 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-23 17:22:17,011 INFO L625 ElimStorePlain]: treesize reduction 38, result has 77.6 percent of original size [2020-12-23 17:22:17,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:17,030 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:17,030 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 86 [2020-12-23 17:22:17,032 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:17,136 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-23 17:22:17,137 INFO L625 ElimStorePlain]: treesize reduction 38, result has 77.1 percent of original size [2020-12-23 17:22:17,139 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:17,140 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:136, output treesize:248 [2020-12-23 17:22:18,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:18,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:18,161 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:18,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:18,181 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:18,182 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 4 case distinctions, treesize of input 343 treesize of output 157 [2020-12-23 17:22:18,198 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:22:18,199 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:22:18,201 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,205 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,206 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,209 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:22:18,211 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:22:18,215 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,217 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:22:18,221 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:22:18,223 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:22:18,224 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,226 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,229 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:22:18,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:22:18,241 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,242 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,244 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:22:18,249 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:22:18,251 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,254 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:22:18,265 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,272 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,274 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:22:18,280 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:18,282 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2020-12-23 17:22:18,287 INFO L547 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:18,381 INFO L625 ElimStorePlain]: treesize reduction 8, result has 95.3 percent of original size [2020-12-23 17:22:18,389 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:18,389 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:408, output treesize:160 [2020-12-23 17:22:18,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:18,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:18,582 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:18,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:18,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:18,585 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:18,585 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:18,586 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:18,622 INFO L348 Elim1Store]: treesize reduction 16, result has 69.2 percent of original size [2020-12-23 17:22:18,622 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 134 treesize of output 73 [2020-12-23 17:22:18,625 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:22:18,628 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:18,667 INFO L625 ElimStorePlain]: treesize reduction 4, result has 91.5 percent of original size [2020-12-23 17:22:18,674 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:18,675 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:157, output treesize:31 [2020-12-23 17:22:18,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:18,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:22:18,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 39 [2020-12-23 17:22:18,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232045688] [2020-12-23 17:22:18,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-12-23 17:22:18,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:18,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-12-23 17:22:18,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1447, Unknown=0, NotChecked=0, Total=1560 [2020-12-23 17:22:18,808 INFO L87 Difference]: Start difference. First operand 96 states and 107 transitions. Second operand 40 states. [2020-12-23 17:22:19,729 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-23 17:22:19,931 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-12-23 17:22:20,204 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2020-12-23 17:22:20,420 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 82 [2020-12-23 17:22:20,706 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 79 [2020-12-23 17:22:21,147 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2020-12-23 17:22:21,685 WARN L197 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 133 [2020-12-23 17:22:22,346 WARN L197 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 176 [2020-12-23 17:22:23,247 WARN L197 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 228 [2020-12-23 17:22:24,227 WARN L197 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 232 [2020-12-23 17:22:25,250 WARN L197 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 234 [2020-12-23 17:22:26,228 WARN L197 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 230 [2020-12-23 17:22:27,271 WARN L197 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 220 [2020-12-23 17:22:30,556 WARN L197 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 136 [2020-12-23 17:22:31,393 WARN L197 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 123 [2020-12-23 17:22:32,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:32,515 INFO L93 Difference]: Finished difference Result 175 states and 188 transitions. [2020-12-23 17:22:32,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-23 17:22:32,516 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 34 [2020-12-23 17:22:32,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:32,521 INFO L225 Difference]: With dead ends: 175 [2020-12-23 17:22:32,521 INFO L226 Difference]: Without dead ends: 175 [2020-12-23 17:22:32,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=514, Invalid=3392, Unknown=0, NotChecked=0, Total=3906 [2020-12-23 17:22:32,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-12-23 17:22:32,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 96. [2020-12-23 17:22:32,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-23 17:22:32,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2020-12-23 17:22:32,526 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 34 [2020-12-23 17:22:32,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:32,526 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2020-12-23 17:22:32,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-12-23 17:22:32,526 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2020-12-23 17:22:32,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 17:22:32,527 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:32,527 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] [2020-12-23 17:22:32,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:22:32,735 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:32,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:32,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1220337663, now seen corresponding path program 1 times [2020-12-23 17:22:32,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:32,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361833773] [2020-12-23 17:22:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:32,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361833773] [2020-12-23 17:22:32,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372448122] [2020-12-23 17:22:32,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:22:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:32,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 17:22:32,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:22:33,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:33,025 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2020-12-23 17:22:33,026 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:33,043 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:33,044 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:33,044 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:16 [2020-12-23 17:22:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 17:22:33,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:22:33,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2020-12-23 17:22:33,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252725588] [2020-12-23 17:22:33,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:22:33,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:33,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:22:33,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-12-23 17:22:33,087 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand 7 states. [2020-12-23 17:22:33,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:33,330 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2020-12-23 17:22:33,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 17:22:33,331 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-12-23 17:22:33,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:33,332 INFO L225 Difference]: With dead ends: 102 [2020-12-23 17:22:33,332 INFO L226 Difference]: Without dead ends: 102 [2020-12-23 17:22:33,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2020-12-23 17:22:33,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-12-23 17:22:33,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 95. [2020-12-23 17:22:33,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-23 17:22:33,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 104 transitions. [2020-12-23 17:22:33,335 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 104 transitions. Word has length 35 [2020-12-23 17:22:33,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:33,335 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 104 transitions. [2020-12-23 17:22:33,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:22:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 104 transitions. [2020-12-23 17:22:33,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 17:22:33,335 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:33,336 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] [2020-12-23 17:22:33,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-23 17:22:33,547 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:33,548 INFO L82 PathProgramCache]: Analyzing trace with hash -806199100, now seen corresponding path program 1 times [2020-12-23 17:22:33,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:33,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160115946] [2020-12-23 17:22:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:33,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:33,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160115946] [2020-12-23 17:22:33,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:22:33,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-23 17:22:33,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532476165] [2020-12-23 17:22:33,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-23 17:22:33,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:33,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-23 17:22:33,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-12-23 17:22:33,734 INFO L87 Difference]: Start difference. First operand 95 states and 104 transitions. Second operand 14 states. [2020-12-23 17:22:34,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:34,526 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2020-12-23 17:22:34,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-23 17:22:34,527 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2020-12-23 17:22:34,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:34,528 INFO L225 Difference]: With dead ends: 104 [2020-12-23 17:22:34,528 INFO L226 Difference]: Without dead ends: 104 [2020-12-23 17:22:34,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=238, Invalid=574, Unknown=0, NotChecked=0, Total=812 [2020-12-23 17:22:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-23 17:22:34,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2020-12-23 17:22:34,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-23 17:22:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2020-12-23 17:22:34,533 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 35 [2020-12-23 17:22:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:34,533 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2020-12-23 17:22:34,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-23 17:22:34,533 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2020-12-23 17:22:34,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 17:22:34,533 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:34,534 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] [2020-12-23 17:22:34,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-23 17:22:34,534 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:34,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:34,540 INFO L82 PathProgramCache]: Analyzing trace with hash -806199099, now seen corresponding path program 1 times [2020-12-23 17:22:34,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:34,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638955943] [2020-12-23 17:22:34,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:34,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:34,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638955943] [2020-12-23 17:22:34,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854712951] [2020-12-23 17:22:34,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:22:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:35,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 58 conjunts are in the unsatisfiable core [2020-12-23 17:22:35,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:22:35,443 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 13 treesize of output 9 [2020-12-23 17:22:35,444 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:35,454 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:35,458 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 13 treesize of output 9 [2020-12-23 17:22:35,458 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:35,468 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:35,469 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:35,469 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:32 [2020-12-23 17:22:35,751 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:35,752 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 68 [2020-12-23 17:22:35,753 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:22:35,756 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:22:35,757 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:35,772 INFO L625 ElimStorePlain]: treesize reduction 18, result has 71.0 percent of original size [2020-12-23 17:22:35,780 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:35,780 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 31 [2020-12-23 17:22:35,783 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:35,788 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:35,788 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:35,789 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:87, output treesize:11 [2020-12-23 17:22:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:35,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:22:35,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 29 [2020-12-23 17:22:35,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414140171] [2020-12-23 17:22:35,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-23 17:22:35,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:35,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-23 17:22:35,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=801, Unknown=0, NotChecked=0, Total=870 [2020-12-23 17:22:35,885 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand 30 states. [2020-12-23 17:22:37,055 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2020-12-23 17:22:37,278 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 81 [2020-12-23 17:22:37,593 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 108 [2020-12-23 17:22:37,895 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 113 [2020-12-23 17:22:38,140 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 86 [2020-12-23 17:22:38,333 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2020-12-23 17:22:38,507 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2020-12-23 17:22:39,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:22:39,396 INFO L93 Difference]: Finished difference Result 147 states and 157 transitions. [2020-12-23 17:22:39,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-23 17:22:39,396 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 35 [2020-12-23 17:22:39,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:22:39,397 INFO L225 Difference]: With dead ends: 147 [2020-12-23 17:22:39,398 INFO L226 Difference]: Without dead ends: 147 [2020-12-23 17:22:39,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=486, Invalid=2166, Unknown=0, NotChecked=0, Total=2652 [2020-12-23 17:22:39,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-12-23 17:22:39,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 96. [2020-12-23 17:22:39,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-23 17:22:39,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2020-12-23 17:22:39,402 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 35 [2020-12-23 17:22:39,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:22:39,402 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2020-12-23 17:22:39,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-23 17:22:39,402 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2020-12-23 17:22:39,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-23 17:22:39,402 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:22:39,403 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] [2020-12-23 17:22:39,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-23 17:22:39,617 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:22:39,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:22:39,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1663218810, now seen corresponding path program 1 times [2020-12-23 17:22:39,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:22:39,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131485688] [2020-12-23 17:22:39,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:22:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:40,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:40,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131485688] [2020-12-23 17:22:40,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204874423] [2020-12-23 17:22:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:22:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:22:40,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 92 conjunts are in the unsatisfiable core [2020-12-23 17:22:40,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:22:40,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:40,652 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-12-23 17:22:40,653 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:40,666 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:40,667 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:40,668 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:27 [2020-12-23 17:22:40,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:40,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:40,967 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:40,968 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 36 [2020-12-23 17:22:40,970 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:41,027 INFO L625 ElimStorePlain]: treesize reduction 14, result has 76.3 percent of original size [2020-12-23 17:22:41,028 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:41,028 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:45 [2020-12-23 17:22:41,231 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 13 treesize of output 9 [2020-12-23 17:22:41,232 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:41,266 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:41,267 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:41,267 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:61, output treesize:57 [2020-12-23 17:22:41,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:41,389 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 29 treesize of output 13 [2020-12-23 17:22:41,390 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:41,419 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:41,422 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:41,422 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:76, output treesize:57 [2020-12-23 17:22:41,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:41,704 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 21 treesize of output 20 [2020-12-23 17:22:41,705 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:41,784 INFO L625 ElimStorePlain]: treesize reduction 3, result has 95.7 percent of original size [2020-12-23 17:22:41,786 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. [2020-12-23 17:22:41,786 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:74, output treesize:67 [2020-12-23 17:22:41,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:41,984 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:41,985 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 2 case distinctions, treesize of input 30 treesize of output 94 [2020-12-23 17:22:41,992 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:42,095 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2020-12-23 17:22:42,096 INFO L625 ElimStorePlain]: treesize reduction 46, result has 62.9 percent of original size [2020-12-23 17:22:42,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:22:42,102 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. [2020-12-23 17:22:42,102 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:74, output treesize:78 [2020-12-23 17:22:42,105 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:22:42,256 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:22:42,572 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2020-12-23 17:22:42,586 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:42,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:42,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:42,613 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:42,621 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:42,636 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:42,637 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 66 [2020-12-23 17:22:42,639 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:42,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:42,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:42,649 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:42,654 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2020-12-23 17:22:42,656 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:42,845 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-12-23 17:22:42,846 INFO L625 ElimStorePlain]: treesize reduction 33, result has 80.0 percent of original size [2020-12-23 17:22:42,849 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-12-23 17:22:42,850 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:150, output treesize:132 [2020-12-23 17:22:43,083 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-23 17:22:43,090 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 14, 1] term [2020-12-23 17:22:43,090 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:43,097 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:43,106 INFO L443 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_43|], 6=[v_prenex_1], 20=[|v_#memory_$Pointer$.base_52|]} [2020-12-23 17:22:43,121 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 13 treesize of output 9 [2020-12-23 17:22:43,122 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:43,133 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 13 treesize of output 9 [2020-12-23 17:22:43,133 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:43,269 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-23 17:22:43,270 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:43,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:43,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:43,281 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:43,287 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2020-12-23 17:22:43,289 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:43,396 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-23 17:22:43,397 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:43,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:43,404 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:43,406 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:43,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:43,409 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:43,429 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:43,429 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 89 [2020-12-23 17:22:43,433 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:43,623 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-23 17:22:43,623 INFO L625 ElimStorePlain]: treesize reduction 56, result has 75.0 percent of original size [2020-12-23 17:22:43,627 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-12-23 17:22:43,627 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:194, output treesize:198 [2020-12-23 17:22:45,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:45,010 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:45,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:45,012 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:22:45,096 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:45,097 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 214 treesize of output 253 [2020-12-23 17:22:45,102 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:22:45,104 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:45,142 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:45,145 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. [2020-12-23 17:22:45,146 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:243, output treesize:86 [2020-12-23 17:22:45,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:45,553 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:45,553 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 67 treesize of output 148 [2020-12-23 17:22:45,559 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:45,560 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:22:45,560 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:22:45,564 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:22:45,565 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:22:45,565 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:22:45,567 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:45,658 INFO L625 ElimStorePlain]: treesize reduction 56, result has 55.6 percent of original size [2020-12-23 17:22:45,660 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:45,661 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:99, output treesize:75 [2020-12-23 17:22:45,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:45,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:45,870 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:45,870 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2020-12-23 17:22:45,872 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:45,940 INFO L625 ElimStorePlain]: treesize reduction 13, result has 88.3 percent of original size [2020-12-23 17:22:45,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:45,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:45,998 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:45,999 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 81 treesize of output 136 [2020-12-23 17:22:46,002 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2020-12-23 17:22:46,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:22:46,005 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:46,144 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2020-12-23 17:22:46,144 INFO L625 ElimStorePlain]: treesize reduction 162, result has 43.0 percent of original size [2020-12-23 17:22:46,148 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:46,152 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:46,155 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:46,158 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:46,161 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:22:46,165 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-23 17:22:46,166 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:130, output treesize:140 [2020-12-23 17:22:46,168 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:46,171 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:46,173 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:46,176 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:46,178 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:22:50,395 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:50,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:22:50,402 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:22:50,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:22:50,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:50,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:50,454 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:50,454 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 4 case distinctions, treesize of input 72 treesize of output 84 [2020-12-23 17:22:50,457 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 17:22:50,458 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:22:50,458 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 17:22:50,461 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:22:50,466 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:50,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:50,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:22:50,481 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:22:50,481 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 41 [2020-12-23 17:22:50,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:22:50,485 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:22:50,533 INFO L625 ElimStorePlain]: treesize reduction 121, result has 14.8 percent of original size [2020-12-23 17:22:50,535 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:22:50,535 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:178, output treesize:7 [2020-12-23 17:22:50,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:22:50,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:22:50,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25] total 45 [2020-12-23 17:22:50,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536575905] [2020-12-23 17:22:50,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-12-23 17:22:50,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:22:50,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-12-23 17:22:50,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1948, Unknown=2, NotChecked=0, Total=2070 [2020-12-23 17:22:50,599 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand 46 states. [2020-12-23 17:22:51,334 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2020-12-23 17:22:51,574 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2020-12-23 17:22:51,891 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2020-12-23 17:22:52,235 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2020-12-23 17:22:52,615 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2020-12-23 17:22:53,070 WARN L197 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 91 [2020-12-23 17:22:53,588 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 95 [2020-12-23 17:22:54,013 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 81 [2020-12-23 17:22:54,494 WARN L197 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 84 [2020-12-23 17:22:54,873 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 82 [2020-12-23 17:22:55,351 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 113 [2020-12-23 17:22:56,006 WARN L197 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 146 [2020-12-23 17:22:57,079 WARN L197 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 189 [2020-12-23 17:22:58,227 WARN L197 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 199 [2020-12-23 17:22:59,406 WARN L197 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 204 [2020-12-23 17:23:00,583 WARN L197 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 194 [2020-12-23 17:23:01,968 WARN L197 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 198 [2020-12-23 17:23:03,308 WARN L197 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 279 DAG size of output: 218 [2020-12-23 17:23:04,665 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 272 DAG size of output: 202 [2020-12-23 17:23:05,744 WARN L197 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 189 [2020-12-23 17:23:10,651 WARN L197 SmtUtils]: Spent 4.58 s on a formula simplification. DAG size of input: 170 DAG size of output: 153 [2020-12-23 17:23:11,549 WARN L197 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 150 [2020-12-23 17:23:16,092 WARN L197 SmtUtils]: Spent 4.33 s on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2020-12-23 17:23:18,644 WARN L197 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 110 DAG size of output: 99 [2020-12-23 17:23:19,211 WARN L197 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 108 [2020-12-23 17:23:20,464 WARN L197 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-12-23 17:23:22,868 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-12-23 17:23:28,280 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-12-23 17:23:28,713 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-12-23 17:23:29,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:23:29,214 INFO L93 Difference]: Finished difference Result 173 states and 178 transitions. [2020-12-23 17:23:29,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-12-23 17:23:29,214 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 37 [2020-12-23 17:23:29,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:23:29,216 INFO L225 Difference]: With dead ends: 173 [2020-12-23 17:23:29,216 INFO L226 Difference]: Without dead ends: 173 [2020-12-23 17:23:29,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1139 ImplicationChecksByTransitivity, 36.7s TimeCoverageRelationStatistics Valid=887, Invalid=5753, Unknown=2, NotChecked=0, Total=6642 [2020-12-23 17:23:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-12-23 17:23:29,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 98. [2020-12-23 17:23:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-23 17:23:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2020-12-23 17:23:29,221 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 37 [2020-12-23 17:23:29,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:23:29,221 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2020-12-23 17:23:29,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-12-23 17:23:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2020-12-23 17:23:29,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-23 17:23:29,222 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:23:29,222 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] [2020-12-23 17:23:29,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-23 17:23:29,438 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:23:29,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:23:29,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1818946726, now seen corresponding path program 1 times [2020-12-23 17:23:29,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:23:29,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075649995] [2020-12-23 17:23:29,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:23:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:23:29,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 17:23:29,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075649995] [2020-12-23 17:23:29,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:23:29,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:23:29,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174754046] [2020-12-23 17:23:29,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 17:23:29,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:23:29,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 17:23:29,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 17:23:29,480 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand 4 states. [2020-12-23 17:23:29,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:23:29,589 INFO L93 Difference]: Finished difference Result 96 states and 104 transitions. [2020-12-23 17:23:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 17:23:29,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-12-23 17:23:29,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:23:29,590 INFO L225 Difference]: With dead ends: 96 [2020-12-23 17:23:29,590 INFO L226 Difference]: Without dead ends: 96 [2020-12-23 17:23:29,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:23:29,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-12-23 17:23:29,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-12-23 17:23:29,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-23 17:23:29,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2020-12-23 17:23:29,593 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 38 [2020-12-23 17:23:29,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:23:29,594 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2020-12-23 17:23:29,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 17:23:29,594 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2020-12-23 17:23:29,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-23 17:23:29,594 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:23:29,594 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] [2020-12-23 17:23:29,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-23 17:23:29,595 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:23:29,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:23:29,595 INFO L82 PathProgramCache]: Analyzing trace with hash -20175398, now seen corresponding path program 1 times [2020-12-23 17:23:29,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:23:29,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38304549] [2020-12-23 17:23:29,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:23:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:23:30,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:23:30,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38304549] [2020-12-23 17:23:30,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533223562] [2020-12-23 17:23:30,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:23:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:23:31,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 64 conjunts are in the unsatisfiable core [2020-12-23 17:23:31,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:23:31,020 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_59|], 1=[|v_#valid_74|]} [2020-12-23 17:23:31,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:23:31,027 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 [2020-12-23 17:23:31,028 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:23:31,050 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:31,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:23:31,057 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2020-12-23 17:23:31,059 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:23:31,077 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:31,078 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:23:31,078 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:23 [2020-12-23 17:23:31,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:23:31,425 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 17:23:31,427 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:23:31,441 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:31,442 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:23:31,442 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:16 [2020-12-23 17:23:31,809 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 13 treesize of output 9 [2020-12-23 17:23:31,810 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:23:31,829 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:31,830 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:23:31,830 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2020-12-23 17:23:32,654 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 10 [2020-12-23 17:23:32,656 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:23:32,681 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:32,682 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. [2020-12-23 17:23:32,683 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:43 [2020-12-23 17:23:33,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:23:33,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:23:33,179 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:23:33,269 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:33,271 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 146 [2020-12-23 17:23:33,273 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 17:23:33,274 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:23:33,274 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,275 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 17:23:33,276 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,277 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,278 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:23:33,278 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,279 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:23:33,279 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,280 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:33,281 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,282 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,283 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,283 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-23 17:23:33,284 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,284 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:33,285 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,289 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 17:23:33,289 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 17:23:33,290 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,291 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,291 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,293 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:23:33,293 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,294 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,295 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:23:33,296 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,296 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,298 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 17:23:33,298 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,299 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,299 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,300 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:23:33,301 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,302 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,303 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-12-23 17:23:33,303 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,304 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:33,304 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:33,305 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,306 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,307 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,308 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:33,308 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,309 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:33,310 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:23:33,432 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 35 [2020-12-23 17:23:33,433 INFO L625 ElimStorePlain]: treesize reduction 79, result has 41.9 percent of original size [2020-12-23 17:23:33,436 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:33,437 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:33,438 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:23:33,440 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-23 17:23:33,440 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:62, output treesize:54 [2020-12-23 17:23:33,442 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:33,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:33,444 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:23:33,643 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:33,644 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:33,647 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:23:33,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:23:33,792 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-12-23 17:23:33,792 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:33,793 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 6 case distinctions, treesize of input 59 treesize of output 162 [2020-12-23 17:23:33,797 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 3, 2, 1] term [2020-12-23 17:23:33,797 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:23:33,798 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:33,799 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 17:23:33,799 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:23:33,800 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-23 17:23:33,801 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:23:33,801 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-23 17:23:33,802 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 17:23:33,802 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:23:33,803 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 17:23:33,804 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:23:33,805 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 17:23:33,806 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 17:23:33,808 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:23:33,809 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-23 17:23:33,810 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-23 17:23:33,810 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:23:33,811 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 17:23:33,812 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 17:23:33,813 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:23:33,814 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-23 17:23:33,818 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:33,819 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-23 17:23:33,820 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:23:33,820 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-23 17:23:33,821 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 17:23:33,822 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:23:33,822 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 17:23:33,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:23:33,825 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 17:23:33,826 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-12-23 17:23:33,828 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-23 17:23:33,829 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-12-23 17:23:33,831 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-23 17:23:33,831 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:23:33,832 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 17:23:33,833 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-23 17:23:33,835 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-23 17:23:33,835 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-12-23 17:23:33,837 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2020-12-23 17:23:33,837 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-23 17:23:33,838 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:23:33,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:23:33,906 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:33,906 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 87 [2020-12-23 17:23:33,909 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 17:23:33,909 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:23:33,911 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-12-23 17:23:34,297 WARN L197 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 54 [2020-12-23 17:23:34,298 INFO L625 ElimStorePlain]: treesize reduction 283, result has 37.1 percent of original size [2020-12-23 17:23:34,302 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:34,304 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:34,306 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:34,308 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:34,309 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:34,315 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-23 17:23:34,315 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:34,316 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:34,319 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2020-12-23 17:23:34,319 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:127, output treesize:170 [2020-12-23 17:23:34,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:34,323 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:34,324 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:34,326 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:34,327 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:34,328 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:42,618 WARN L197 SmtUtils]: Spent 8.05 s on a formula simplification that was a NOOP. DAG size: 62 [2020-12-23 17:23:42,628 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-12-23 17:23:42,629 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:42,631 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:42,632 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:42,633 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:42,634 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:42,635 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:42,640 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:42,643 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:42,647 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:23:42,656 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:42,658 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:42,660 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:23:42,662 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:23:42,665 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-23 17:23:42,676 INFO L443 ElimStorePlain]: Different costs {2=[v_prenex_5], 6=[v_prenex_6], 20=[|#memory_$Pointer$.base|]} [2020-12-23 17:23:42,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:23:42,688 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:42,688 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 13 [2020-12-23 17:23:42,690 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:23:42,799 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-12-23 17:23:42,800 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:42,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:23:42,831 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:42,831 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 45 [2020-12-23 17:23:42,833 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:23:42,836 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 17:23:42,839 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 3 xjuncts. [2020-12-23 17:23:43,021 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2020-12-23 17:23:43,022 INFO L625 ElimStorePlain]: treesize reduction 37, result has 78.0 percent of original size [2020-12-23 17:23:43,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:23:43,095 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:43,095 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 92 [2020-12-23 17:23:43,099 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-23 17:23:43,100 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:23:43,101 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:23:43,103 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-23 17:23:43,104 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-23 17:23:43,107 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:23:43,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:23:43,139 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:43,140 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 46 [2020-12-23 17:23:43,142 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:23:43,176 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:23:43,181 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:23:43,181 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 11 variables, input treesize:235, output treesize:3 [2020-12-23 17:23:43,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:23:43,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:23:43,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 41 [2020-12-23 17:23:43,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036354417] [2020-12-23 17:23:43,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-12-23 17:23:43,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:23:43,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-12-23 17:23:43,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-12-23 17:23:43,243 INFO L87 Difference]: Start difference. First operand 96 states and 104 transitions. Second operand 42 states. [2020-12-23 17:23:44,109 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-12-23 17:23:44,368 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-12-23 17:23:44,912 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2020-12-23 17:23:45,329 WARN L197 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2020-12-23 17:23:45,788 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2020-12-23 17:23:46,227 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2020-12-23 17:23:46,636 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2020-12-23 17:23:47,027 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 70 [2020-12-23 17:23:47,513 WARN L197 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2020-12-23 17:23:50,318 WARN L197 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2020-12-23 17:23:53,141 WARN L197 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 112 [2020-12-23 17:23:56,004 WARN L197 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 116 [2020-12-23 17:23:58,950 WARN L197 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 109 [2020-12-23 17:24:02,248 WARN L197 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 116 [2020-12-23 17:24:05,343 WARN L197 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 122 [2020-12-23 17:24:08,493 WARN L197 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 118 [2020-12-23 17:24:13,261 WARN L197 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2020-12-23 17:24:18,576 WARN L197 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 129 [2020-12-23 17:24:19,082 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 65 [2020-12-23 17:25:00,855 WARN L197 SmtUtils]: Spent 29.24 s on a formula simplification. DAG size of input: 197 DAG size of output: 158 [2020-12-23 17:25:30,464 WARN L197 SmtUtils]: Spent 29.25 s on a formula simplification. DAG size of input: 200 DAG size of output: 161 [2020-12-23 17:26:04,370 WARN L197 SmtUtils]: Spent 21.10 s on a formula simplification. DAG size of input: 184 DAG size of output: 150 [2020-12-23 17:26:07,146 WARN L197 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 76 [2020-12-23 17:26:09,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:26:09,055 INFO L93 Difference]: Finished difference Result 149 states and 164 transitions. [2020-12-23 17:26:09,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-23 17:26:09,056 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 38 [2020-12-23 17:26:09,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:26:09,057 INFO L225 Difference]: With dead ends: 149 [2020-12-23 17:26:09,057 INFO L226 Difference]: Without dead ends: 149 [2020-12-23 17:26:09,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 144.2s TimeCoverageRelationStatistics Valid=831, Invalid=3841, Unknown=20, NotChecked=0, Total=4692 [2020-12-23 17:26:09,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-12-23 17:26:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 97. [2020-12-23 17:26:09,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-23 17:26:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-12-23 17:26:09,064 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 38 [2020-12-23 17:26:09,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:26:09,064 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-12-23 17:26:09,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-12-23 17:26:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-12-23 17:26:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-23 17:26:09,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:26:09,065 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, 1, 1] [2020-12-23 17:26:09,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:26:09,278 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:26:09,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:26:09,279 INFO L82 PathProgramCache]: Analyzing trace with hash 552773870, now seen corresponding path program 1 times [2020-12-23 17:26:09,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:26:09,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677057934] [2020-12-23 17:26:09,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:26:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:26:10,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:26:10,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677057934] [2020-12-23 17:26:10,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516161225] [2020-12-23 17:26:10,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:26:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:26:10,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 62 conjunts are in the unsatisfiable core [2020-12-23 17:26:10,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:26:11,027 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-12-23 17:26:11,028 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 [2020-12-23 17:26:11,030 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:26:11,047 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:26:11,050 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:26:11,050 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:14 [2020-12-23 17:26:11,450 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:26:11,451 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 34 [2020-12-23 17:26:11,454 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:26:11,455 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:26:11,459 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:26:11,485 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:26:11,487 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:26:11,488 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2020-12-23 17:26:11,889 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 17:26:11,893 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:26:11,923 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:26:11,925 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:26:11,925 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2020-12-23 17:26:12,086 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-12-23 17:26:12,090 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:26:12,123 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:26:12,126 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. [2020-12-23 17:26:12,127 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28