/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/memsafety-ext2/length_test03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 17:06:57,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 17:06:57,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 17:06:57,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 17:06:57,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 17:06:57,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 17:06:57,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 17:06:57,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 17:06:57,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 17:06:57,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 17:06:57,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 17:06:57,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 17:06:57,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 17:06:57,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 17:06:57,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 17:06:57,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 17:06:57,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 17:06:57,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 17:06:57,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 17:06:57,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 17:06:57,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 17:06:57,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 17:06:57,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 17:06:57,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 17:06:57,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 17:06:57,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 17:06:57,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 17:06:57,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 17:06:57,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 17:06:57,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 17:06:57,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 17:06:57,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 17:06:57,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 17:06:57,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 17:06:57,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 17:06:57,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 17:06:57,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 17:06:57,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 17:06:57,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 17:06:57,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 17:06:57,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 17:06:57,516 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 17:06:57,551 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 17:06:57,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 17:06:57,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 17:06:57,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 17:06:57,555 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 17:06:57,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 17:06:57,556 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-23 17:06:57,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 17:06:57,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 17:06:57,557 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-23 17:06:57,557 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-23 17:06:57,557 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-23 17:06:57,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 17:06:57,557 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-23 17:06:57,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 17:06:57,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 17:06:57,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 17:06:57,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 17:06:57,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 17:06:57,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 17:06:57,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 17:06:57,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 17:06:57,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 17:06:57,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 17:06:57,560 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 17:06:57,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 17:06:57,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 17:06:57,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 17:06:57,989 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 17:06:57,990 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 17:06:57,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext2/length_test03-2.i [2020-12-23 17:06:58,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5258eedd5/f758fa117abd4293b0c0126c27852507/FLAG79a563b20 [2020-12-23 17:06:58,836 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 17:06:58,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/memsafety-ext2/length_test03-2.i [2020-12-23 17:06:58,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5258eedd5/f758fa117abd4293b0c0126c27852507/FLAG79a563b20 [2020-12-23 17:06:59,093 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5258eedd5/f758fa117abd4293b0c0126c27852507 [2020-12-23 17:06:59,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 17:06:59,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 17:06:59,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 17:06:59,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 17:06:59,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 17:06:59,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:06:59" (1/1) ... [2020-12-23 17:06:59,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7559374d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59, skipping insertion in model container [2020-12-23 17:06:59,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:06:59" (1/1) ... [2020-12-23 17:06:59,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 17:06:59,153 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],StructAccessExpression[IdentifierExpression[~node~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head,],base],StructAccessExpression[IdentifierExpression[~head,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~head,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[1],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[9],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[1],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[9],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem10,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[9],StructAccessExpression[IdentifierExpression[#t~mem10,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~head,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list~0,],base],StructAccessExpression[IdentifierExpression[~list~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~list~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list2~0,],base],StructAccessExpression[IdentifierExpression[~list2~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list2~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~list2~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] left hand side expression in assignment: lhs: VariableLHS[~cursor~0,] left hand side expression in assignment: lhs: VariableLHS[~cursor~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~prev~0,] left hand side expression in assignment: lhs: VariableLHS[~cursor~0,] left hand side expression in assignment: lhs: VariableLHS[~cursor~0,] left hand side expression in assignment: lhs: VariableLHS[~prev~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] [2020-12-23 17:06:59,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:06:59,535 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],StructAccessExpression[IdentifierExpression[~node~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head,],base],StructAccessExpression[IdentifierExpression[~head,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~head,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[1],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[9],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[1],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[9],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem10,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[9],StructAccessExpression[IdentifierExpression[#t~mem10,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~head,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list~0,],base],StructAccessExpression[IdentifierExpression[~list~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~list~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list2~0,],base],StructAccessExpression[IdentifierExpression[~list2~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list2~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~list2~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] left hand side expression in assignment: lhs: VariableLHS[~cursor~0,] left hand side expression in assignment: lhs: VariableLHS[~cursor~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~prev~0,] left hand side expression in assignment: lhs: VariableLHS[~cursor~0,] left hand side expression in assignment: lhs: VariableLHS[~cursor~0,] left hand side expression in assignment: lhs: VariableLHS[~prev~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] [2020-12-23 17:06:59,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:06:59,641 INFO L208 MainTranslator]: Completed translation [2020-12-23 17:06:59,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59 WrapperNode [2020-12-23 17:06:59,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 17:06:59,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 17:06:59,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 17:06:59,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 17:06:59,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59" (1/1) ... [2020-12-23 17:06:59,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59" (1/1) ... [2020-12-23 17:06:59,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 17:06:59,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 17:06:59,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 17:06:59,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 17:06:59,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59" (1/1) ... [2020-12-23 17:06:59,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59" (1/1) ... [2020-12-23 17:06:59,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59" (1/1) ... [2020-12-23 17:06:59,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59" (1/1) ... [2020-12-23 17:06:59,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59" (1/1) ... [2020-12-23 17:06:59,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59" (1/1) ... [2020-12-23 17:06:59,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59" (1/1) ... [2020-12-23 17:06:59,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 17:06:59,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 17:06:59,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 17:06:59,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 17:06:59,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59" (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 17:06:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 17:06:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 17:06:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 17:06:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 17:06:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 17:06:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 17:06:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 17:06:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 17:06:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 17:07:00,861 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 17:07:00,862 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-23 17:07:00,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:07:00 BoogieIcfgContainer [2020-12-23 17:07:00,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 17:07:00,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 17:07:00,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 17:07:00,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 17:07:00,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:06:59" (1/3) ... [2020-12-23 17:07:00,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143e0261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:07:00, skipping insertion in model container [2020-12-23 17:07:00,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:06:59" (2/3) ... [2020-12-23 17:07:00,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143e0261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:07:00, skipping insertion in model container [2020-12-23 17:07:00,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:07:00" (3/3) ... [2020-12-23 17:07:00,873 INFO L111 eAbstractionObserver]: Analyzing ICFG length_test03-2.i [2020-12-23 17:07:00,880 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 17:07:00,885 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 85 error locations. [2020-12-23 17:07:00,903 INFO L253 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2020-12-23 17:07:00,925 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 17:07:00,925 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-23 17:07:00,926 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 17:07:00,926 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 17:07:00,926 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 17:07:00,926 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 17:07:00,926 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 17:07:00,926 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 17:07:00,950 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states. [2020-12-23 17:07:00,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 17:07:00,957 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:00,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 17:07:00,959 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:00,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:00,965 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-12-23 17:07:00,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:00,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687220267] [2020-12-23 17:07:00,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:01,143 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 17:07:01,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687220267] [2020-12-23 17:07:01,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:01,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:07:01,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023329152] [2020-12-23 17:07:01,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:07:01,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:01,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:07:01,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:07:01,170 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 3 states. [2020-12-23 17:07:01,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:01,468 INFO L93 Difference]: Finished difference Result 202 states and 211 transitions. [2020-12-23 17:07:01,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:07:01,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 17:07:01,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:01,482 INFO L225 Difference]: With dead ends: 202 [2020-12-23 17:07:01,482 INFO L226 Difference]: Without dead ends: 200 [2020-12-23 17:07:01,484 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 17:07:01,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-12-23 17:07:01,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 163. [2020-12-23 17:07:01,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-12-23 17:07:01,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 170 transitions. [2020-12-23 17:07:01,559 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 170 transitions. Word has length 3 [2020-12-23 17:07:01,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:01,559 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 170 transitions. [2020-12-23 17:07:01,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:07:01,559 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 170 transitions. [2020-12-23 17:07:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 17:07:01,560 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:01,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 17:07:01,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 17:07:01,561 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:01,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:01,562 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-12-23 17:07:01,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:01,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742833310] [2020-12-23 17:07:01,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:01,616 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 17:07:01,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742833310] [2020-12-23 17:07:01,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:01,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:07:01,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150316097] [2020-12-23 17:07:01,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:07:01,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:01,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:07:01,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:07:01,621 INFO L87 Difference]: Start difference. First operand 163 states and 170 transitions. Second operand 3 states. [2020-12-23 17:07:01,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:01,762 INFO L93 Difference]: Finished difference Result 162 states and 169 transitions. [2020-12-23 17:07:01,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:07:01,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 17:07:01,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:01,765 INFO L225 Difference]: With dead ends: 162 [2020-12-23 17:07:01,765 INFO L226 Difference]: Without dead ends: 162 [2020-12-23 17:07:01,766 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 17:07:01,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-23 17:07:01,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2020-12-23 17:07:01,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-12-23 17:07:01,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 168 transitions. [2020-12-23 17:07:01,782 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 168 transitions. Word has length 3 [2020-12-23 17:07:01,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:01,782 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 168 transitions. [2020-12-23 17:07:01,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:07:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 168 transitions. [2020-12-23 17:07:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 17:07:01,783 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:01,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 17:07:01,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 17:07:01,784 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:01,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:01,785 INFO L82 PathProgramCache]: Analyzing trace with hash 889446152, now seen corresponding path program 1 times [2020-12-23 17:07:01,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:01,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629935286] [2020-12-23 17:07:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:01,854 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 17:07:01,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629935286] [2020-12-23 17:07:01,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:01,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:07:01,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561871538] [2020-12-23 17:07:01,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:07:01,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:01,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:07:01,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:07:01,858 INFO L87 Difference]: Start difference. First operand 161 states and 168 transitions. Second operand 3 states. [2020-12-23 17:07:02,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:02,059 INFO L93 Difference]: Finished difference Result 189 states and 198 transitions. [2020-12-23 17:07:02,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:07:02,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-23 17:07:02,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:02,062 INFO L225 Difference]: With dead ends: 189 [2020-12-23 17:07:02,062 INFO L226 Difference]: Without dead ends: 189 [2020-12-23 17:07:02,062 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 17:07:02,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-12-23 17:07:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 166. [2020-12-23 17:07:02,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-12-23 17:07:02,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 178 transitions. [2020-12-23 17:07:02,076 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 178 transitions. Word has length 6 [2020-12-23 17:07:02,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:02,077 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 178 transitions. [2020-12-23 17:07:02,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:07:02,077 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 178 transitions. [2020-12-23 17:07:02,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 17:07:02,077 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:02,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 17:07:02,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 17:07:02,078 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:02,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:02,079 INFO L82 PathProgramCache]: Analyzing trace with hash 889446153, now seen corresponding path program 1 times [2020-12-23 17:07:02,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:02,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022172056] [2020-12-23 17:07:02,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:02,148 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 17:07:02,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022172056] [2020-12-23 17:07:02,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:02,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:07:02,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083974282] [2020-12-23 17:07:02,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:07:02,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:02,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:07:02,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:07:02,151 INFO L87 Difference]: Start difference. First operand 166 states and 178 transitions. Second operand 3 states. [2020-12-23 17:07:02,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:02,272 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2020-12-23 17:07:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:07:02,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-23 17:07:02,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:02,274 INFO L225 Difference]: With dead ends: 165 [2020-12-23 17:07:02,274 INFO L226 Difference]: Without dead ends: 165 [2020-12-23 17:07:02,276 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 17:07:02,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-12-23 17:07:02,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 164. [2020-12-23 17:07:02,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-12-23 17:07:02,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 176 transitions. [2020-12-23 17:07:02,308 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 176 transitions. Word has length 6 [2020-12-23 17:07:02,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:02,308 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 176 transitions. [2020-12-23 17:07:02,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:07:02,309 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 176 transitions. [2020-12-23 17:07:02,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 17:07:02,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:02,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:07:02,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 17:07:02,310 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:02,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:02,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1113926380, now seen corresponding path program 1 times [2020-12-23 17:07:02,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:02,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709651481] [2020-12-23 17:07:02,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:02,423 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 17:07:02,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709651481] [2020-12-23 17:07:02,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:02,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:07:02,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222639068] [2020-12-23 17:07:02,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:07:02,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:02,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:07:02,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:07:02,427 INFO L87 Difference]: Start difference. First operand 164 states and 176 transitions. Second operand 3 states. [2020-12-23 17:07:02,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:02,586 INFO L93 Difference]: Finished difference Result 188 states and 200 transitions. [2020-12-23 17:07:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:07:02,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-23 17:07:02,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:02,588 INFO L225 Difference]: With dead ends: 188 [2020-12-23 17:07:02,588 INFO L226 Difference]: Without dead ends: 188 [2020-12-23 17:07:02,588 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 17:07:02,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-12-23 17:07:02,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 154. [2020-12-23 17:07:02,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-23 17:07:02,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 166 transitions. [2020-12-23 17:07:02,609 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 166 transitions. Word has length 10 [2020-12-23 17:07:02,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:02,609 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 166 transitions. [2020-12-23 17:07:02,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:07:02,610 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 166 transitions. [2020-12-23 17:07:02,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 17:07:02,612 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:02,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:07:02,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 17:07:02,613 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:02,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:02,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1113926381, now seen corresponding path program 1 times [2020-12-23 17:07:02,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:02,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984879954] [2020-12-23 17:07:02,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:02,715 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 17:07:02,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984879954] [2020-12-23 17:07:02,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:02,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:07:02,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882593350] [2020-12-23 17:07:02,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:07:02,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:02,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:07:02,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:07:02,718 INFO L87 Difference]: Start difference. First operand 154 states and 166 transitions. Second operand 3 states. [2020-12-23 17:07:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:02,817 INFO L93 Difference]: Finished difference Result 145 states and 157 transitions. [2020-12-23 17:07:02,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:07:02,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-23 17:07:02,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:02,819 INFO L225 Difference]: With dead ends: 145 [2020-12-23 17:07:02,819 INFO L226 Difference]: Without dead ends: 145 [2020-12-23 17:07:02,819 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 17:07:02,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-23 17:07:02,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2020-12-23 17:07:02,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-12-23 17:07:02,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 156 transitions. [2020-12-23 17:07:02,823 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 156 transitions. Word has length 10 [2020-12-23 17:07:02,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:02,824 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 156 transitions. [2020-12-23 17:07:02,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:07:02,824 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 156 transitions. [2020-12-23 17:07:02,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 17:07:02,824 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:02,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:07:02,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 17:07:02,825 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:02,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:02,826 INFO L82 PathProgramCache]: Analyzing trace with hash 171979406, now seen corresponding path program 1 times [2020-12-23 17:07:02,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:02,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016076445] [2020-12-23 17:07:02,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:02,929 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 17:07:02,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016076445] [2020-12-23 17:07:02,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:02,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:07:02,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299772807] [2020-12-23 17:07:02,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:07:02,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:02,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:07:02,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:07:02,932 INFO L87 Difference]: Start difference. First operand 144 states and 156 transitions. Second operand 5 states. [2020-12-23 17:07:03,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:03,078 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2020-12-23 17:07:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:07:03,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-23 17:07:03,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:03,080 INFO L225 Difference]: With dead ends: 165 [2020-12-23 17:07:03,080 INFO L226 Difference]: Without dead ends: 165 [2020-12-23 17:07:03,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:07:03,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-12-23 17:07:03,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 131. [2020-12-23 17:07:03,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-23 17:07:03,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 143 transitions. [2020-12-23 17:07:03,085 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 143 transitions. Word has length 11 [2020-12-23 17:07:03,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:03,086 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 143 transitions. [2020-12-23 17:07:03,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:07:03,086 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions. [2020-12-23 17:07:03,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 17:07:03,086 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:03,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:07:03,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 17:07:03,087 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:03,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:03,088 INFO L82 PathProgramCache]: Analyzing trace with hash 171979407, now seen corresponding path program 1 times [2020-12-23 17:07:03,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:03,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954546259] [2020-12-23 17:07:03,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:03,160 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 17:07:03,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954546259] [2020-12-23 17:07:03,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:03,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:07:03,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145864696] [2020-12-23 17:07:03,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:07:03,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:03,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:07:03,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:07:03,163 INFO L87 Difference]: Start difference. First operand 131 states and 143 transitions. Second operand 5 states. [2020-12-23 17:07:03,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:03,440 INFO L93 Difference]: Finished difference Result 248 states and 267 transitions. [2020-12-23 17:07:03,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:07:03,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-23 17:07:03,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:03,442 INFO L225 Difference]: With dead ends: 248 [2020-12-23 17:07:03,442 INFO L226 Difference]: Without dead ends: 248 [2020-12-23 17:07:03,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:07:03,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-12-23 17:07:03,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 122. [2020-12-23 17:07:03,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-12-23 17:07:03,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 134 transitions. [2020-12-23 17:07:03,447 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 134 transitions. Word has length 11 [2020-12-23 17:07:03,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:03,447 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 134 transitions. [2020-12-23 17:07:03,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:07:03,448 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 134 transitions. [2020-12-23 17:07:03,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-23 17:07:03,449 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:03,449 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 17:07:03,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 17:07:03,449 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:03,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:03,450 INFO L82 PathProgramCache]: Analyzing trace with hash 719743272, now seen corresponding path program 1 times [2020-12-23 17:07:03,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:03,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089355229] [2020-12-23 17:07:03,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:03,735 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 17:07:03,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089355229] [2020-12-23 17:07:03,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:03,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-23 17:07:03,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110926915] [2020-12-23 17:07:03,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 17:07:03,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:03,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 17:07:03,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-12-23 17:07:03,738 INFO L87 Difference]: Start difference. First operand 122 states and 134 transitions. Second operand 11 states. [2020-12-23 17:07:04,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:04,446 INFO L93 Difference]: Finished difference Result 172 states and 185 transitions. [2020-12-23 17:07:04,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 17:07:04,447 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2020-12-23 17:07:04,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:04,448 INFO L225 Difference]: With dead ends: 172 [2020-12-23 17:07:04,448 INFO L226 Difference]: Without dead ends: 172 [2020-12-23 17:07:04,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-12-23 17:07:04,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-12-23 17:07:04,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 127. [2020-12-23 17:07:04,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-12-23 17:07:04,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 139 transitions. [2020-12-23 17:07:04,452 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 139 transitions. Word has length 20 [2020-12-23 17:07:04,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:04,453 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 139 transitions. [2020-12-23 17:07:04,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 17:07:04,453 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 139 transitions. [2020-12-23 17:07:04,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 17:07:04,454 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:04,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:07:04,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 17:07:04,454 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:04,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:04,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1685508437, now seen corresponding path program 1 times [2020-12-23 17:07:04,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:04,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014341590] [2020-12-23 17:07:04,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:04,650 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 17:07:04,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014341590] [2020-12-23 17:07:04,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:04,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 17:07:04,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841241312] [2020-12-23 17:07:04,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 17:07:04,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:04,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 17:07:04,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:07:04,653 INFO L87 Difference]: Start difference. First operand 127 states and 139 transitions. Second operand 9 states. [2020-12-23 17:07:05,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:05,153 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2020-12-23 17:07:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 17:07:05,155 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-12-23 17:07:05,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:05,157 INFO L225 Difference]: With dead ends: 165 [2020-12-23 17:07:05,157 INFO L226 Difference]: Without dead ends: 165 [2020-12-23 17:07:05,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-12-23 17:07:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-12-23 17:07:05,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 130. [2020-12-23 17:07:05,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-12-23 17:07:05,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 142 transitions. [2020-12-23 17:07:05,162 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 142 transitions. Word has length 22 [2020-12-23 17:07:05,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:05,162 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 142 transitions. [2020-12-23 17:07:05,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 17:07:05,162 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 142 transitions. [2020-12-23 17:07:05,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-23 17:07:05,163 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:05,163 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 17:07:05,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 17:07:05,164 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:05,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:05,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1869984694, now seen corresponding path program 1 times [2020-12-23 17:07:05,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:05,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856338812] [2020-12-23 17:07:05,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:05,275 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 17:07:05,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856338812] [2020-12-23 17:07:05,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:05,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 17:07:05,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981934731] [2020-12-23 17:07:05,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:07:05,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:05,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:07:05,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:07:05,280 INFO L87 Difference]: Start difference. First operand 130 states and 142 transitions. Second operand 5 states. [2020-12-23 17:07:05,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:05,432 INFO L93 Difference]: Finished difference Result 174 states and 184 transitions. [2020-12-23 17:07:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:07:05,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-12-23 17:07:05,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:05,435 INFO L225 Difference]: With dead ends: 174 [2020-12-23 17:07:05,435 INFO L226 Difference]: Without dead ends: 174 [2020-12-23 17:07:05,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 17:07:05,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-12-23 17:07:05,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 129. [2020-12-23 17:07:05,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-12-23 17:07:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 141 transitions. [2020-12-23 17:07:05,441 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 141 transitions. Word has length 26 [2020-12-23 17:07:05,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:05,441 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 141 transitions. [2020-12-23 17:07:05,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:07:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 141 transitions. [2020-12-23 17:07:05,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-23 17:07:05,443 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:05,443 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 17:07:05,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 17:07:05,443 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:05,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:05,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1869984693, now seen corresponding path program 1 times [2020-12-23 17:07:05,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:05,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106798307] [2020-12-23 17:07:05,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:05,596 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 17:07:05,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106798307] [2020-12-23 17:07:05,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:05,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 17:07:05,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585513897] [2020-12-23 17:07:05,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:07:05,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:05,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:07:05,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:07:05,598 INFO L87 Difference]: Start difference. First operand 129 states and 141 transitions. Second operand 7 states. [2020-12-23 17:07:05,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:05,876 INFO L93 Difference]: Finished difference Result 219 states and 232 transitions. [2020-12-23 17:07:05,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 17:07:05,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-12-23 17:07:05,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:05,880 INFO L225 Difference]: With dead ends: 219 [2020-12-23 17:07:05,880 INFO L226 Difference]: Without dead ends: 219 [2020-12-23 17:07:05,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-12-23 17:07:05,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-12-23 17:07:05,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 120. [2020-12-23 17:07:05,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-23 17:07:05,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 130 transitions. [2020-12-23 17:07:05,884 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 130 transitions. Word has length 26 [2020-12-23 17:07:05,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:05,885 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 130 transitions. [2020-12-23 17:07:05,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:07:05,885 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 130 transitions. [2020-12-23 17:07:05,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-23 17:07:05,887 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:05,887 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 17:07:05,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 17:07:05,888 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:05,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:05,888 INFO L82 PathProgramCache]: Analyzing trace with hash -2134950599, now seen corresponding path program 1 times [2020-12-23 17:07:05,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:05,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693170560] [2020-12-23 17:07:05,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:05,940 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 17:07:05,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693170560] [2020-12-23 17:07:05,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:05,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:07:05,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181726289] [2020-12-23 17:07:05,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:07:05,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:05,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:07:05,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:07:05,943 INFO L87 Difference]: Start difference. First operand 120 states and 130 transitions. Second operand 3 states. [2020-12-23 17:07:05,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:05,973 INFO L93 Difference]: Finished difference Result 150 states and 160 transitions. [2020-12-23 17:07:05,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:07:05,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-12-23 17:07:05,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:05,974 INFO L225 Difference]: With dead ends: 150 [2020-12-23 17:07:05,974 INFO L226 Difference]: Without dead ends: 150 [2020-12-23 17:07:05,975 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 17:07:05,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-12-23 17:07:05,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 117. [2020-12-23 17:07:05,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-12-23 17:07:05,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 125 transitions. [2020-12-23 17:07:05,979 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 125 transitions. Word has length 27 [2020-12-23 17:07:05,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:05,980 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 125 transitions. [2020-12-23 17:07:05,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:07:05,983 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 125 transitions. [2020-12-23 17:07:05,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-23 17:07:05,991 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:05,991 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:07:05,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 17:07:05,991 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:05,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:05,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1324444706, now seen corresponding path program 1 times [2020-12-23 17:07:05,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:05,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336424118] [2020-12-23 17:07:05,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:07:06,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336424118] [2020-12-23 17:07:06,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207225810] [2020-12-23 17:07:06,377 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 17:07:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:06,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 41 conjunts are in the unsatisfiable core [2020-12-23 17:07:06,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:07:06,582 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 17:07:06,583 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:06,591 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:06,592 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:06,593 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:07:06,660 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:06,661 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 17:07:06,663 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:06,679 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-23 17:07:06,680 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:06,680 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2020-12-23 17:07:06,756 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:06,757 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-23 17:07:06,766 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:07:06,772 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:06,781 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:06,782 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:06,783 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2020-12-23 17:07:06,865 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 13 treesize of output 9 [2020-12-23 17:07:06,866 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:06,874 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:06,875 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:06,876 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2020-12-23 17:07:06,917 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:07:06,919 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:06,929 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:06,930 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:06,930 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:33 [2020-12-23 17:07:07,044 INFO L348 Elim1Store]: treesize reduction 42, result has 55.8 percent of original size [2020-12-23 17:07:07,045 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 77 [2020-12-23 17:07:07,052 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2020-12-23 17:07:07,052 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 17:07:07,054 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:07,066 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:07,068 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 17:07:07,068 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:67, output treesize:57 [2020-12-23 17:07:08,194 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:08,194 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 99 [2020-12-23 17:07:08,199 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:07:08,201 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:07:08,204 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:08,222 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:08,224 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 17:07:08,224 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:76 [2020-12-23 17:07:08,365 INFO L348 Elim1Store]: treesize reduction 60, result has 54.2 percent of original size [2020-12-23 17:07:08,366 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 5 case distinctions, treesize of input 77 treesize of output 102 [2020-12-23 17:07:08,371 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:08,388 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:08,390 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 17:07:08,390 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:91, output treesize:76 [2020-12-23 17:07:08,566 INFO L348 Elim1Store]: treesize reduction 12, result has 90.8 percent of original size [2020-12-23 17:07:08,567 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 5 case distinctions, treesize of input 75 treesize of output 159 [2020-12-23 17:07:08,573 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:08,592 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:08,595 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:07:08,595 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:89, output treesize:76 [2020-12-23 17:07:08,746 INFO L348 Elim1Store]: treesize reduction 12, result has 90.8 percent of original size [2020-12-23 17:07:08,747 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 5 case distinctions, treesize of input 75 treesize of output 159 [2020-12-23 17:07:08,753 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:08,772 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:08,775 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 17:07:08,775 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:89, output treesize:85 [2020-12-23 17:07:08,950 INFO L348 Elim1Store]: treesize reduction 12, result has 84.4 percent of original size [2020-12-23 17:07:08,951 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 93 [2020-12-23 17:07:08,954 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:08,965 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:08,969 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:07:08,970 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:94, output treesize:28 [2020-12-23 17:07:09,050 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:07:09,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:07:09,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2020-12-23 17:07:09,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081727865] [2020-12-23 17:07:09,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 17:07:09,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:09,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 17:07:09,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=330, Unknown=1, NotChecked=0, Total=380 [2020-12-23 17:07:09,056 INFO L87 Difference]: Start difference. First operand 117 states and 125 transitions. Second operand 20 states. [2020-12-23 17:07:12,826 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2020-12-23 17:07:13,325 WARN L197 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-12-23 17:07:16,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:16,001 INFO L93 Difference]: Finished difference Result 168 states and 179 transitions. [2020-12-23 17:07:16,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-23 17:07:16,001 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 34 [2020-12-23 17:07:16,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:16,003 INFO L225 Difference]: With dead ends: 168 [2020-12-23 17:07:16,003 INFO L226 Difference]: Without dead ends: 168 [2020-12-23 17:07:16,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 24 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=261, Invalid=859, Unknown=2, NotChecked=0, Total=1122 [2020-12-23 17:07:16,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-12-23 17:07:16,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 116. [2020-12-23 17:07:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-12-23 17:07:16,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 124 transitions. [2020-12-23 17:07:16,008 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 124 transitions. Word has length 34 [2020-12-23 17:07:16,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:16,008 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 124 transitions. [2020-12-23 17:07:16,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-23 17:07:16,008 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 124 transitions. [2020-12-23 17:07:16,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-23 17:07:16,009 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:16,009 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:07:16,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 17:07:16,220 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:16,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:16,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1324444705, now seen corresponding path program 1 times [2020-12-23 17:07:16,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:16,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761792542] [2020-12-23 17:07:16,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:16,823 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:07:16,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761792542] [2020-12-23 17:07:16,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203942035] [2020-12-23 17:07:16,824 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 17:07:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:16,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 52 conjunts are in the unsatisfiable core [2020-12-23 17:07:16,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:07:16,946 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 17:07:16,947 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:16,949 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:16,950 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:16,950 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:07:16,983 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:16,984 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 17:07:16,985 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:16,999 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-23 17:07:17,000 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 17:07:17,000 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-23 17:07:17,028 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_84|], 3=[|v_#valid_105|]} [2020-12-23 17:07:17,032 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 17:07:17,032 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,044 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,063 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,063 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-23 17:07:17,066 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:07:17,068 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,079 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,080 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,081 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:26 [2020-12-23 17:07:17,198 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 13 treesize of output 9 [2020-12-23 17:07:17,199 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,213 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,217 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 13 treesize of output 9 [2020-12-23 17:07:17,218 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,232 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,233 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,234 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:41 [2020-12-23 17:07:17,294 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:07:17,296 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,316 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,323 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:07:17,326 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,347 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,349 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,349 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:67, output treesize:59 [2020-12-23 17:07:17,426 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,426 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 127 [2020-12-23 17:07:17,455 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,482 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:17,525 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,525 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 146 treesize of output 171 [2020-12-23 17:07:17,531 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2020-12-23 17:07:17,532 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:07:17,535 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,563 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,564 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,564 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:170, output treesize:150 [2020-12-23 17:07:17,655 INFO L443 ElimStorePlain]: Different costs {1=[|v_#length_85|], 3=[|v_#valid_106|]} [2020-12-23 17:07:17,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:17,665 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2020-12-23 17:07:17,666 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,697 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,714 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,716 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32 [2020-12-23 17:07:17,719 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:07:17,720 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:07:17,723 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,751 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,752 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,753 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:153 [2020-12-23 17:07:17,837 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,837 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 1 case distinctions, treesize of input 128 treesize of output 106 [2020-12-23 17:07:17,840 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:17,874 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:17,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:17,973 INFO L348 Elim1Store]: treesize reduction 72, result has 59.8 percent of original size [2020-12-23 17:07:17,974 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 5 case distinctions, treesize of input 150 treesize of output 181 [2020-12-23 17:07:17,983 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:18,015 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,019 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:18,019 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:183, output treesize:153 [2020-12-23 17:07:18,061 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,062 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 1 case distinctions, treesize of input 126 treesize of output 115 [2020-12-23 17:07:18,068 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:18,108 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:18,174 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,175 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 5 case distinctions, treesize of input 148 treesize of output 262 [2020-12-23 17:07:18,181 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:18,219 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,224 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 17:07:18,224 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:179, output treesize:153 [2020-12-23 17:07:18,255 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,256 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 1 case distinctions, treesize of input 126 treesize of output 115 [2020-12-23 17:07:18,260 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:18,297 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:18,366 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,367 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 5 case distinctions, treesize of input 148 treesize of output 262 [2020-12-23 17:07:18,373 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:18,419 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,422 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:07:18,422 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:179, output treesize:171 [2020-12-23 17:07:18,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:18,616 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,617 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 153 treesize of output 160 [2020-12-23 17:07:18,620 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:18,646 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,654 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,655 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 41 [2020-12-23 17:07:18,657 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:18,670 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:18,672 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:07:18,672 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:189, output treesize:25 [2020-12-23 17:07:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:07:18,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:07:18,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2020-12-23 17:07:18,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469603025] [2020-12-23 17:07:18,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-23 17:07:18,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:18,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-23 17:07:18,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2020-12-23 17:07:18,737 INFO L87 Difference]: Start difference. First operand 116 states and 124 transitions. Second operand 22 states. [2020-12-23 17:07:19,251 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2020-12-23 17:07:19,459 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2020-12-23 17:07:19,707 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2020-12-23 17:07:20,320 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2020-12-23 17:07:20,649 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2020-12-23 17:07:20,841 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2020-12-23 17:07:21,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:21,671 INFO L93 Difference]: Finished difference Result 166 states and 177 transitions. [2020-12-23 17:07:21,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 17:07:21,671 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 34 [2020-12-23 17:07:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:21,674 INFO L225 Difference]: With dead ends: 166 [2020-12-23 17:07:21,674 INFO L226 Difference]: Without dead ends: 166 [2020-12-23 17:07:21,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2020-12-23 17:07:21,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-12-23 17:07:21,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 115. [2020-12-23 17:07:21,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-23 17:07:21,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 123 transitions. [2020-12-23 17:07:21,679 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 123 transitions. Word has length 34 [2020-12-23 17:07:21,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:21,679 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 123 transitions. [2020-12-23 17:07:21,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-23 17:07:21,680 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 123 transitions. [2020-12-23 17:07:21,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 17:07:21,680 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:21,680 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 17:07:21,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-23 17:07:21,891 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:21,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:21,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1505746487, now seen corresponding path program 1 times [2020-12-23 17:07:21,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:21,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909115809] [2020-12-23 17:07:21,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:22,182 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 17:07:22,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909115809] [2020-12-23 17:07:22,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:22,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-23 17:07:22,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644674541] [2020-12-23 17:07:22,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 17:07:22,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:22,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 17:07:22,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-23 17:07:22,185 INFO L87 Difference]: Start difference. First operand 115 states and 123 transitions. Second operand 12 states. [2020-12-23 17:07:23,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:23,239 INFO L93 Difference]: Finished difference Result 179 states and 191 transitions. [2020-12-23 17:07:23,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 17:07:23,240 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-12-23 17:07:23,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:23,241 INFO L225 Difference]: With dead ends: 179 [2020-12-23 17:07:23,241 INFO L226 Difference]: Without dead ends: 179 [2020-12-23 17:07:23,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2020-12-23 17:07:23,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-12-23 17:07:23,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 135. [2020-12-23 17:07:23,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-23 17:07:23,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 146 transitions. [2020-12-23 17:07:23,246 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 146 transitions. Word has length 35 [2020-12-23 17:07:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:23,246 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 146 transitions. [2020-12-23 17:07:23,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 17:07:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 146 transitions. [2020-12-23 17:07:23,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-23 17:07:23,247 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:23,247 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 17:07:23,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 17:07:23,247 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:23,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:23,248 INFO L82 PathProgramCache]: Analyzing trace with hash 2044305786, now seen corresponding path program 1 times [2020-12-23 17:07:23,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:23,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045093933] [2020-12-23 17:07:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:23,976 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 17:07:23,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045093933] [2020-12-23 17:07:23,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:07:23,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-23 17:07:23,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972809560] [2020-12-23 17:07:23,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-23 17:07:23,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:23,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-23 17:07:23,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-12-23 17:07:23,979 INFO L87 Difference]: Start difference. First operand 135 states and 146 transitions. Second operand 17 states. [2020-12-23 17:07:24,222 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2020-12-23 17:07:24,439 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-12-23 17:07:24,817 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2020-12-23 17:07:24,989 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2020-12-23 17:07:25,154 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 60 [2020-12-23 17:07:25,283 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2020-12-23 17:07:25,429 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2020-12-23 17:07:25,794 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2020-12-23 17:07:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:26,624 INFO L93 Difference]: Finished difference Result 242 states and 260 transitions. [2020-12-23 17:07:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-23 17:07:26,625 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 37 [2020-12-23 17:07:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:26,627 INFO L225 Difference]: With dead ends: 242 [2020-12-23 17:07:26,627 INFO L226 Difference]: Without dead ends: 242 [2020-12-23 17:07:26,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2020-12-23 17:07:26,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-12-23 17:07:26,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 156. [2020-12-23 17:07:26,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-23 17:07:26,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 170 transitions. [2020-12-23 17:07:26,632 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 170 transitions. Word has length 37 [2020-12-23 17:07:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:26,632 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 170 transitions. [2020-12-23 17:07:26,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-23 17:07:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 170 transitions. [2020-12-23 17:07:26,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-23 17:07:26,633 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:26,633 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, 1, 1] [2020-12-23 17:07:26,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 17:07:26,633 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:26,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:26,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1235359313, now seen corresponding path program 1 times [2020-12-23 17:07:26,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:26,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917154691] [2020-12-23 17:07:26,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:26,677 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 17:07:26,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917154691] [2020-12-23 17:07:26,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121081092] [2020-12-23 17:07:26,678 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 17:07:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:26,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 17:07:26,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:07:26,817 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 17:07:26,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:07:26,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-23 17:07:26,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338459522] [2020-12-23 17:07:26,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 17:07:26,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:26,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 17:07:26,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:07:26,819 INFO L87 Difference]: Start difference. First operand 156 states and 170 transitions. Second operand 5 states. [2020-12-23 17:07:26,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:26,850 INFO L93 Difference]: Finished difference Result 237 states and 256 transitions. [2020-12-23 17:07:26,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 17:07:26,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-12-23 17:07:26,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:26,851 INFO L225 Difference]: With dead ends: 237 [2020-12-23 17:07:26,852 INFO L226 Difference]: Without dead ends: 237 [2020-12-23 17:07:26,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 17:07:26,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-12-23 17:07:26,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 189. [2020-12-23 17:07:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-12-23 17:07:26,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 212 transitions. [2020-12-23 17:07:26,857 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 212 transitions. Word has length 40 [2020-12-23 17:07:26,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:26,857 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 212 transitions. [2020-12-23 17:07:26,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 17:07:26,857 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 212 transitions. [2020-12-23 17:07:26,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-23 17:07:26,858 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:26,858 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:07:27,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-23 17:07:27,074 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:27,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:27,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1669182637, now seen corresponding path program 1 times [2020-12-23 17:07:27,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:27,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935225745] [2020-12-23 17:07:27,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:27,656 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:07:27,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935225745] [2020-12-23 17:07:27,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140528014] [2020-12-23 17:07:27,657 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 17:07:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:27,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 52 conjunts are in the unsatisfiable core [2020-12-23 17:07:27,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:07:27,810 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 17:07:27,811 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:27,812 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:27,813 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:27,813 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:07:27,841 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:27,842 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 17:07:27,843 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:27,855 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-23 17:07:27,856 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 17:07:27,856 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-23 17:07:27,889 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_86|], 3=[|v_#valid_109|]} [2020-12-23 17:07:27,894 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 17:07:27,895 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:27,905 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:27,924 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:27,925 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-23 17:07:27,927 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:07:27,931 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:27,941 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:27,942 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:27,942 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:26 [2020-12-23 17:07:28,046 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 13 treesize of output 9 [2020-12-23 17:07:28,047 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,061 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,066 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 13 treesize of output 9 [2020-12-23 17:07:28,066 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,079 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,080 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,080 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:41 [2020-12-23 17:07:28,138 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:07:28,139 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,160 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,166 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:07:28,167 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,186 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,187 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,187 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:67, output treesize:59 [2020-12-23 17:07:28,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:28,276 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,276 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 156 treesize of output 175 [2020-12-23 17:07:28,280 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2020-12-23 17:07:28,281 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:07:28,282 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,314 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,331 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,331 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 117 [2020-12-23 17:07:28,334 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,361 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,362 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,362 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:170, output treesize:150 [2020-12-23 17:07:28,432 INFO L443 ElimStorePlain]: Different costs {1=[|v_#length_87|], 3=[|v_#valid_110|]} [2020-12-23 17:07:28,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:28,438 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2020-12-23 17:07:28,440 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,472 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,489 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,490 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32 [2020-12-23 17:07:28,492 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:07:28,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:07:28,495 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,523 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,524 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,524 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:161, output treesize:153 [2020-12-23 17:07:28,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:28,693 INFO L348 Elim1Store]: treesize reduction 72, result has 59.8 percent of original size [2020-12-23 17:07:28,694 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 5 case distinctions, treesize of input 150 treesize of output 181 [2020-12-23 17:07:28,698 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,733 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,742 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,743 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 1 case distinctions, treesize of input 128 treesize of output 106 [2020-12-23 17:07:28,745 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,772 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,773 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,774 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:183, output treesize:153 [2020-12-23 17:07:28,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:28,866 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,867 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 5 case distinctions, treesize of input 148 treesize of output 262 [2020-12-23 17:07:28,872 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,909 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,918 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,918 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 1 case distinctions, treesize of input 126 treesize of output 115 [2020-12-23 17:07:28,921 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:28,955 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:28,958 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 17:07:28,958 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:179, output treesize:153 [2020-12-23 17:07:28,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:29,041 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:29,042 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 5 case distinctions, treesize of input 148 treesize of output 262 [2020-12-23 17:07:29,046 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:29,089 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:29,098 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:29,099 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 115 [2020-12-23 17:07:29,103 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:29,142 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:29,145 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:07:29,145 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:179, output treesize:171 [2020-12-23 17:07:29,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:29,293 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:29,294 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 153 treesize of output 160 [2020-12-23 17:07:29,297 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:29,329 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:29,339 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:29,340 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 41 [2020-12-23 17:07:29,348 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:29,362 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:29,364 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:07:29,364 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:189, output treesize:25 [2020-12-23 17:07:29,430 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:07:29,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:07:29,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 24 [2020-12-23 17:07:29,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073869745] [2020-12-23 17:07:29,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-23 17:07:29,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:29,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-23 17:07:29,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2020-12-23 17:07:29,433 INFO L87 Difference]: Start difference. First operand 189 states and 212 transitions. Second operand 25 states. [2020-12-23 17:07:30,370 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 55 [2020-12-23 17:07:30,608 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 63 [2020-12-23 17:07:30,968 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 74 [2020-12-23 17:07:31,266 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 81 [2020-12-23 17:07:31,437 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-12-23 17:07:32,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:07:32,280 INFO L93 Difference]: Finished difference Result 266 states and 284 transitions. [2020-12-23 17:07:32,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 17:07:32,281 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 48 [2020-12-23 17:07:32,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:07:32,283 INFO L225 Difference]: With dead ends: 266 [2020-12-23 17:07:32,283 INFO L226 Difference]: Without dead ends: 266 [2020-12-23 17:07:32,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2020-12-23 17:07:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-23 17:07:32,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 189. [2020-12-23 17:07:32,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-12-23 17:07:32,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 211 transitions. [2020-12-23 17:07:32,289 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 211 transitions. Word has length 48 [2020-12-23 17:07:32,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:07:32,290 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 211 transitions. [2020-12-23 17:07:32,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-23 17:07:32,290 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 211 transitions. [2020-12-23 17:07:32,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-23 17:07:32,290 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:07:32,291 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:07:32,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:07:32,507 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:07:32,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:07:32,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1669182636, now seen corresponding path program 1 times [2020-12-23 17:07:32,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:07:32,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168233004] [2020-12-23 17:07:32,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:07:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:32,848 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:07:32,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168233004] [2020-12-23 17:07:32,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144472893] [2020-12-23 17:07:32,849 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 17:07:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:07:32,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 41 conjunts are in the unsatisfiable core [2020-12-23 17:07:32,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:07:33,012 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 17:07:33,013 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:33,021 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:33,022 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:07:33,022 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2020-12-23 17:07:33,146 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 17:07:33,147 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:33,164 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:33,167 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 17:07:33,167 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:35 [2020-12-23 17:07:33,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,227 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-12-23 17:07:33,228 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:33,250 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:33,251 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 17:07:33,252 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:44 [2020-12-23 17:07:33,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,321 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:33,322 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 39 [2020-12-23 17:07:33,323 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:33,343 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:33,346 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 17:07:33,346 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:72, output treesize:62 [2020-12-23 17:07:33,486 INFO L348 Elim1Store]: treesize reduction 14, result has 85.9 percent of original size [2020-12-23 17:07:33,486 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 28 treesize of output 99 [2020-12-23 17:07:33,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:07:33,490 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:07:33,492 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:07:33,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:07:33,494 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:07:33,497 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:07:33,500 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:33,558 INFO L625 ElimStorePlain]: treesize reduction 20, result has 80.2 percent of original size [2020-12-23 17:07:33,561 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 17:07:33,562 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:73, output treesize:81 [2020-12-23 17:07:33,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,671 INFO L348 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2020-12-23 17:07:33,672 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 67 treesize of output 66 [2020-12-23 17:07:33,674 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:33,699 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:33,703 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 17:07:33,704 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:96, output treesize:81 [2020-12-23 17:07:33,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,850 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:33,850 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 123 [2020-12-23 17:07:33,853 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:33,883 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:33,887 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 17:07:33,888 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:94, output treesize:81 [2020-12-23 17:07:33,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:33,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:34,003 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:34,003 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 123 [2020-12-23 17:07:34,007 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:34,043 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:34,049 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-23 17:07:34,050 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:94, output treesize:90 [2020-12-23 17:07:34,138 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-23 17:07:34,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:34,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:34,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:07:34,158 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:34,159 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 68 treesize of output 57 [2020-12-23 17:07:34,161 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:07:34,178 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:07:34,184 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-23 17:07:34,184 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:94, output treesize:24 [2020-12-23 17:07:34,243 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:07:34,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 17:07:34,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2020-12-23 17:07:34,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730395364] [2020-12-23 17:07:34,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-23 17:07:34,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:07:34,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-23 17:07:34,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2020-12-23 17:07:34,246 INFO L87 Difference]: Start difference. First operand 189 states and 211 transitions. Second operand 25 states. [2020-12-23 17:07:48,035 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2020-12-23 17:07:48,182 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2020-12-23 17:08:06,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:08:06,951 INFO L93 Difference]: Finished difference Result 263 states and 281 transitions. [2020-12-23 17:08:06,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 17:08:06,951 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 48 [2020-12-23 17:08:06,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:08:06,953 INFO L225 Difference]: With dead ends: 263 [2020-12-23 17:08:06,954 INFO L226 Difference]: Without dead ends: 263 [2020-12-23 17:08:06,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=318, Invalid=939, Unknown=3, NotChecked=0, Total=1260 [2020-12-23 17:08:06,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-12-23 17:08:06,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 189. [2020-12-23 17:08:06,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-12-23 17:08:06,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 210 transitions. [2020-12-23 17:08:06,966 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 210 transitions. Word has length 48 [2020-12-23 17:08:06,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:08:06,966 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 210 transitions. [2020-12-23 17:08:06,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-23 17:08:06,966 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 210 transitions. [2020-12-23 17:08:06,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-23 17:08:06,967 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:08:06,967 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:08:07,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:08:07,169 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:08:07,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:08:07,170 INFO L82 PathProgramCache]: Analyzing trace with hash -2041786393, now seen corresponding path program 1 times [2020-12-23 17:08:07,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:08:07,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399091054] [2020-12-23 17:08:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:08:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:08:07,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-23 17:08:07,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399091054] [2020-12-23 17:08:07,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:08:07,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 17:08:07,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65781682] [2020-12-23 17:08:07,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:08:07,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:08:07,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:08:07,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:08:07,213 INFO L87 Difference]: Start difference. First operand 189 states and 210 transitions. Second operand 3 states. [2020-12-23 17:08:07,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:08:07,232 INFO L93 Difference]: Finished difference Result 193 states and 214 transitions. [2020-12-23 17:08:07,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:08:07,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-12-23 17:08:07,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:08:07,236 INFO L225 Difference]: With dead ends: 193 [2020-12-23 17:08:07,236 INFO L226 Difference]: Without dead ends: 193 [2020-12-23 17:08:07,236 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 17:08:07,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-12-23 17:08:07,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 192. [2020-12-23 17:08:07,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-12-23 17:08:07,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 213 transitions. [2020-12-23 17:08:07,243 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 213 transitions. Word has length 49 [2020-12-23 17:08:07,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:08:07,243 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 213 transitions. [2020-12-23 17:08:07,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:08:07,243 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 213 transitions. [2020-12-23 17:08:07,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 17:08:07,244 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:08:07,244 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:08:07,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 17:08:07,244 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr71REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr63REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-23 17:08:07,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:08:07,245 INFO L82 PathProgramCache]: Analyzing trace with hash -525801964, now seen corresponding path program 1 times [2020-12-23 17:08:07,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:08:07,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943135427] [2020-12-23 17:08:07,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:08:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:08:07,720 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-12-23 17:08:07,868 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-23 17:08:09,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:08:09,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943135427] [2020-12-23 17:08:09,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940737357] [2020-12-23 17:08:09,070 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 17:08:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:08:09,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 86 conjunts are in the unsatisfiable core [2020-12-23 17:08:09,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:08:09,221 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 17:08:09,221 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,223 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,223 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,223 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:08:09,291 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,291 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-12-23 17:08:09,293 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:08:09,296 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,302 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,303 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,303 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2020-12-23 17:08:09,349 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 17:08:09,350 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,361 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,365 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 17:08:09,366 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,376 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,376 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,376 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:29 [2020-12-23 17:08:09,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:09,445 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 17:08:09,446 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,463 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:09,468 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 17:08:09,470 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,487 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,488 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,489 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:47 [2020-12-23 17:08:09,596 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,597 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 69 [2020-12-23 17:08:09,599 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:08:09,600 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:08:09,603 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,631 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,632 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,632 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:66 [2020-12-23 17:08:09,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:09,740 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-12-23 17:08:09,741 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,773 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:09,781 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-12-23 17:08:09,783 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,811 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,812 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,812 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:96, output treesize:66 [2020-12-23 17:08:09,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:09,848 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2020-12-23 17:08:09,849 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,881 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:09,888 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 17:08:09,889 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,921 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:09,922 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:09,922 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:88, output treesize:80 [2020-12-23 17:08:10,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,043 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2020-12-23 17:08:10,051 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:10,084 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:10,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,094 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2020-12-23 17:08:10,095 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:10,127 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:10,128 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:10,128 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:92 [2020-12-23 17:08:10,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,252 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2020-12-23 17:08:10,257 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:10,299 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:10,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,309 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2020-12-23 17:08:10,311 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:10,349 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:10,351 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:10,352 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:118, output treesize:110 [2020-12-23 17:08:10,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,497 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:10,498 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 143 [2020-12-23 17:08:10,501 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:10,561 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:10,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:10,733 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-23 17:08:10,734 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:10,734 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 155 treesize of output 377 [2020-12-23 17:08:10,740 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[17, 3, 2, 1] term [2020-12-23 17:08:10,741 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-23 17:08:10,744 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:10,793 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:10,795 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:10,795 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:208, output treesize:174 [2020-12-23 17:08:10,999 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:11,000 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 119 [2020-12-23 17:08:11,004 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:11,078 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:11,080 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:11,080 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:188, output treesize:198 [2020-12-23 17:08:11,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:11,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:11,274 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:11,274 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 114 [2020-12-23 17:08:11,277 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:11,353 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:11,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:11,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:11,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:11,573 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-12-23 17:08:11,574 INFO L348 Elim1Store]: treesize reduction 72, result has 76.2 percent of original size [2020-12-23 17:08:11,575 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 154 treesize of output 328 [2020-12-23 17:08:11,582 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:11,656 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:11,657 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:11,657 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:228, output treesize:198 [2020-12-23 17:08:11,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:11,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:11,710 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:11,710 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 123 [2020-12-23 17:08:11,713 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:11,790 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:11,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:11,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:11,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:11,949 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-12-23 17:08:11,950 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:11,950 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 152 treesize of output 409 [2020-12-23 17:08:11,960 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:12,045 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:12,048 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 17:08:12,049 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:224, output treesize:198 [2020-12-23 17:08:12,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:12,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:12,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:12,224 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-12-23 17:08:12,225 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:12,225 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 152 treesize of output 409 [2020-12-23 17:08:12,239 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:12,319 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:12,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:12,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:12,340 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:12,341 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 123 [2020-12-23 17:08:12,343 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:12,431 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:12,432 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:08:12,433 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:224, output treesize:216 [2020-12-23 17:08:12,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:12,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:12,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:13,234 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-12-23 17:08:13,235 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:13,235 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 198 treesize of output 639 [2020-12-23 17:08:13,247 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[25, 3, 2, 1] term [2020-12-23 17:08:13,247 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 25 disjuncts [2020-12-23 17:08:13,252 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:13,504 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2020-12-23 17:08:13,516 INFO L625 ElimStorePlain]: treesize reduction 62, result has 81.4 percent of original size [2020-12-23 17:08:13,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:13,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:13,565 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:13,565 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 158 treesize of output 197 [2020-12-23 17:08:13,570 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:13,800 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-12-23 17:08:13,801 INFO L625 ElimStorePlain]: treesize reduction 84, result has 75.9 percent of original size [2020-12-23 17:08:13,806 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:08:13,807 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:08:13,809 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:08:13,809 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:266, output treesize:264 [2020-12-23 17:08:13,817 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:08:13,817 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:08:14,030 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 17:08:14,031 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:08:14,197 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:08:14,199 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,201 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:08:14,201 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:08:14,203 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:08:14,205 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:08:14,206 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,208 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 19 disjuncts [2020-12-23 17:08:14,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-23 17:08:14,213 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,215 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 19 disjuncts [2020-12-23 17:08:14,220 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:08:14,220 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,222 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 17:08:14,224 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 17:08:14,227 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,228 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 17:08:14,249 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:08:14,249 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,252 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:08:14,253 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,255 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 17:08:14,256 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 17:08:14,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,260 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 17:08:14,264 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 20 disjuncts [2020-12-23 17:08:14,266 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,269 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,270 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 17:08:14,273 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 20 disjuncts [2020-12-23 17:08:14,283 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 17:08:14,285 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 17:08:14,290 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 24 disjuncts [2020-12-23 17:08:14,296 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2020-12-23 17:08:14,298 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 17:08:14,301 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-23 17:08:14,304 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 16 disjuncts [2020-12-23 17:08:14,305 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 17:08:14,310 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 22 disjuncts [2020-12-23 17:08:14,326 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,328 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-23 17:08:14,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,331 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 17:08:14,336 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,337 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 19 disjuncts [2020-12-23 17:08:14,343 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,345 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-12-23 17:08:14,346 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 18 disjuncts [2020-12-23 17:08:14,350 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 20 disjuncts [2020-12-23 17:08:14,357 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 24 disjuncts [2020-12-23 17:08:14,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:14,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:14,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:15,105 WARN L197 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 123 [2020-12-23 17:08:15,106 INFO L348 Elim1Store]: treesize reduction 124, result has 78.7 percent of original size [2020-12-23 17:08:15,110 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 309 treesize of output 629 [2020-12-23 17:08:15,133 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:15,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:15,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:15,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:15,655 WARN L197 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 98 [2020-12-23 17:08:15,656 INFO L348 Elim1Store]: treesize reduction 92, result has 78.6 percent of original size [2020-12-23 17:08:15,656 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 17 case distinctions, treesize of input 337 treesize of output 514 [2020-12-23 17:08:15,668 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:15,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:15,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:15,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:16,108 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 98 [2020-12-23 17:08:16,109 INFO L348 Elim1Store]: treesize reduction 92, result has 78.6 percent of original size [2020-12-23 17:08:16,110 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 337 treesize of output 514 [2020-12-23 17:08:16,120 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:16,451 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-23 17:08:16,451 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:16,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:16,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:16,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:16,595 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:16,595 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 7 case distinctions, treesize of input 308 treesize of output 332 [2020-12-23 17:08:16,611 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:16,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:16,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:16,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:16,654 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 148 [2020-12-23 17:08:16,657 INFO L547 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:16,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:16,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-23 17:08:16,689 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:16,690 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 3 case distinctions, treesize of input 200 treesize of output 194 [2020-12-23 17:08:16,695 INFO L547 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:16,960 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-23 17:08:16,961 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:16,976 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 7 dim-0 vars, and 3 xjuncts. [2020-12-23 17:08:16,977 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:1113, output treesize:777 [2020-12-23 17:08:17,683 WARN L197 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-12-23 17:08:17,810 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-23 17:08:17,886 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:17,886 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 62 [2020-12-23 17:08:17,888 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:17,937 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:17,937 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 58 [2020-12-23 17:08:17,939 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:17,978 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:17,979 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 66 [2020-12-23 17:08:17,981 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:08:18,253 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-12-23 17:08:18,253 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:08:18,265 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 3 xjuncts. [2020-12-23 17:08:18,265 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:792, output treesize:765 [2020-12-23 17:08:53,058 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-23 17:08:53,060 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2020-12-23 17:08:53,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 17:08:53,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-12-23 17:08:53,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288544260] [2020-12-23 17:08:53,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-23 17:08:53,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:08:53,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-23 17:08:53,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1142, Unknown=0, NotChecked=0, Total=1260 [2020-12-23 17:08:53,062 INFO L87 Difference]: Start difference. First operand 192 states and 213 transitions. Second operand 22 states. [2020-12-23 17:08:53,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:08:53,268 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:137) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:128) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertCodeBlock(IncrementalHoareTripleChecker.java:432) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:275) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:281) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:93) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:162) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:201) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:759) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:254) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 32 more [2020-12-23 17:08:53,274 INFO L168 Benchmark]: Toolchain (without parser) took 114176.43 ms. Allocated memory was 151.0 MB in the beginning and 320.9 MB in the end (delta: 169.9 MB). Free memory was 125.5 MB in the beginning and 237.7 MB in the end (delta: -112.3 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. [2020-12-23 17:08:53,274 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 17:08:53,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.36 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 103.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 17:08:53,274 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.34 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 100.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 17:08:53,275 INFO L168 Benchmark]: Boogie Preprocessor took 37.18 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 98.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 17:08:53,275 INFO L168 Benchmark]: RCFGBuilder took 1117.10 ms. Allocated memory is still 151.0 MB. Free memory was 98.8 MB in the beginning and 87.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. [2020-12-23 17:08:53,275 INFO L168 Benchmark]: TraceAbstraction took 112407.20 ms. Allocated memory was 151.0 MB in the beginning and 320.9 MB in the end (delta: 169.9 MB). Free memory was 87.7 MB in the beginning and 237.7 MB in the end (delta: -150.0 MB). Peak memory consumption was 19.3 MB. Max. memory is 8.0 GB. [2020-12-23 17:08:53,277 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 543.36 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 103.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 64.34 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 100.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.18 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 98.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1117.10 ms. Allocated memory is still 151.0 MB. Free memory was 98.8 MB in the beginning and 87.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 112407.20 ms. Allocated memory was 151.0 MB in the beginning and 320.9 MB in the end (delta: 169.9 MB). Free memory was 87.7 MB in the beginning and 237.7 MB in the end (delta: -150.0 MB). Peak memory consumption was 19.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...