/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/test-0235-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:13:28,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:13:28,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:13:28,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:13:28,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:13:28,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:13:28,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:13:28,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:13:28,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:13:28,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:13:28,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:13:28,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:13:28,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:13:28,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:13:28,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:13:28,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:13:28,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:13:28,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:13:28,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:13:28,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:13:28,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:13:28,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:13:28,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:13:28,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:13:28,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-07 05:13:28,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-07 05:13:28,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-07 05:13:28,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-07 05:13:28,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-07 05:13:28,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-07 05:13:28,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:13:28,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:13:28,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:13:28,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:13:28,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:13:28,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:13:28,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:13:28,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:13:28,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:13:28,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:13:28,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:13:28,911 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:13:28,957 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:13:28,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:13:28,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:13:28,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:13:28,964 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:13:28,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:13:28,964 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:13:28,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:13:28,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:13:28,965 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:13:28,966 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:13:28,967 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:13:28,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:13:28,967 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:13:28,967 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:13:28,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:13:28,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:13:28,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:13:28,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:13:28,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:13:28,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:13:28,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:13:28,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:13:28,969 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:13:28,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:13:29,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:13:29,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:13:29,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:13:29,415 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:13:29,416 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:13:29,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0235-1.i [2021-01-07 05:13:29,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9f987d661/6efb7dae57f6460cbd58c66ab64419db/FLAGbea021d3b [2021-01-07 05:13:30,237 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:13:30,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/memsafety/test-0235-1.i [2021-01-07 05:13:30,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9f987d661/6efb7dae57f6460cbd58c66ab64419db/FLAGbea021d3b [2021-01-07 05:13:30,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9f987d661/6efb7dae57f6460cbd58c66ab64419db [2021-01-07 05:13:30,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:13:30,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:13:30,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:13:30,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:13:30,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:13:30,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:13:30" (1/1) ... [2021-01-07 05:13:30,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ac5ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:30, skipping insertion in model container [2021-01-07 05:13:30,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:13:30" (1/1) ... [2021-01-07 05:13:30,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:13:30,569 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~item~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~0,],base],StructAccessExpression[IdentifierExpression[~item~0,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~list,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~item~1,],offset]]]] left hand side expression in assignment: address: IdentifierExpression[~list,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~2,],base],StructAccessExpression[IdentifierExpression[~item~2,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~list,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~item~3,],offset]]]] left hand side expression in assignment: address: IdentifierExpression[~list,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~4,],base],StructAccessExpression[IdentifierExpression[~item~4,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~list,] left hand side expression in assignment: lhs: VariableLHS[~list,] left hand side expression in assignment: lhs: VariableLHS[~list,] left hand side expression in assignment: lhs: VariableLHS[~list,] left hand side expression in assignment: lhs: VariableLHS[~list,] left hand side expression in assignment: lhs: VariableLHS[~list,] [2021-01-07 05:13:31,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:13:31,163 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~item~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~0,],base],StructAccessExpression[IdentifierExpression[~item~0,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~list,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~item~1,],offset]]]] left hand side expression in assignment: address: IdentifierExpression[~list,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~2,],base],StructAccessExpression[IdentifierExpression[~item~2,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~list,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~3,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~item~3,],offset]]]] left hand side expression in assignment: address: IdentifierExpression[~list,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~item~4,],base],StructAccessExpression[IdentifierExpression[~item~4,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~list,] left hand side expression in assignment: lhs: VariableLHS[~list,] left hand side expression in assignment: lhs: VariableLHS[~list,] left hand side expression in assignment: lhs: VariableLHS[~list,] left hand side expression in assignment: lhs: VariableLHS[~list,] left hand side expression in assignment: lhs: VariableLHS[~list,] [2021-01-07 05:13:31,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:13:31,410 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:13:31,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31 WrapperNode [2021-01-07 05:13:31,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:13:31,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:13:31,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:13:31,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:13:31,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31" (1/1) ... [2021-01-07 05:13:31,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31" (1/1) ... [2021-01-07 05:13:31,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:13:31,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:13:31,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:13:31,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:13:31,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31" (1/1) ... [2021-01-07 05:13:31,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31" (1/1) ... [2021-01-07 05:13:31,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31" (1/1) ... [2021-01-07 05:13:31,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31" (1/1) ... [2021-01-07 05:13:31,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31" (1/1) ... [2021-01-07 05:13:31,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31" (1/1) ... [2021-01-07 05:13:31,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31" (1/1) ... [2021-01-07 05:13:31,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:13:31,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:13:31,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:13:31,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:13:31,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:13:31,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 05:13:31,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 05:13:31,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:13:31,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 05:13:31,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-07 05:13:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-01-07 05:13:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 05:13:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:13:31,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:13:33,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:13:33,409 INFO L299 CfgBuilder]: Removed 130 assume(true) statements. [2021-01-07 05:13:33,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:13:33 BoogieIcfgContainer [2021-01-07 05:13:33,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:13:33,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:13:33,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:13:33,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:13:33,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:13:30" (1/3) ... [2021-01-07 05:13:33,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5bcac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:13:33, skipping insertion in model container [2021-01-07 05:13:33,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:13:31" (2/3) ... [2021-01-07 05:13:33,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5bcac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:13:33, skipping insertion in model container [2021-01-07 05:13:33,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:13:33" (3/3) ... [2021-01-07 05:13:33,429 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0235-1.i [2021-01-07 05:13:33,437 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:13:33,444 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 247 error locations. [2021-01-07 05:13:33,467 INFO L253 AbstractCegarLoop]: Starting to check reachability of 247 error locations. [2021-01-07 05:13:33,497 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:13:33,497 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:13:33,497 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:13:33,497 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:13:33,498 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:13:33,498 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:13:33,498 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:13:33,498 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:13:33,539 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states. [2021-01-07 05:13:33,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-01-07 05:13:33,546 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:13:33,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-01-07 05:13:33,549 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr219REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr173REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr182ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr200REQUIRES_VIOLATION, ULTIMATE.startErr135REQUIRES_VIOLATION, ULTIMATE.startErr153ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr154REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr191ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr184REQUIRES_VIOLATION, ULTIMATE.startErr230REQUIRES_VIOLATION, ULTIMATE.startErr146ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr218ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr119REQUIRES_VIOLATION, ULTIMATE.startErr211REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr162ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr238ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr127REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr137ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr108ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr165REQUIRES_VIOLATION, ULTIMATE.startErr198ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr130REQUIRES_VIOLATION, ULTIMATE.startErr195REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr149REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr216ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr231ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr214REQUIRES_VIOLATION, ULTIMATE.startErr157ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr92REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr160REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr106ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr168REQUIRES_VIOLATION, ULTIMATE.startErr225REQUIRES_VIOLATION, ULTIMATE.startErr97ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr148ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr206REQUIRES_VIOLATION, ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr242ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr196ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr171REQUIRES_VIOLATION, ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr244REQUIRES_VIOLATION, ULTIMATE.startErr121ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr187ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr223ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr114REQUIRES_VIOLATION, ULTIMATE.startErr179REQUIRES_VIOLATION, ULTIMATE.startErr233ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr133REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr209REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr176ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr158ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr190REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr125REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr112ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr144REQUIRES_VIOLATION, ULTIMATE.startErr109REQUIRES_VIOLATION, ULTIMATE.startErr174REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr226ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr220REQUIRES_VIOLATION, ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr203ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr142ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr221ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr128REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr155REQUIRES_VIOLATION, ULTIMATE.startErr239REQUIRES_VIOLATION, ULTIMATE.startErr151ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr185REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr120REQUIRES_VIOLATION, ULTIMATE.startErr204REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr178ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr139REQUIRES_VIOLATION, ULTIMATE.startErr212REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr166REQUIRES_VIOLATION, ULTIMATE.startErr228ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr131REQUIRES_VIOLATION, ULTIMATE.startErr163ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr150REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr237ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr234REQUIRES_VIOLATION, ULTIMATE.startErr93REQUIRES_VIOLATION, ULTIMATE.startErr98ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr136ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr107ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr215REQUIRES_VIOLATION, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr183ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr201ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr245REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr169REQUIRES_VIOLATION, ULTIMATE.startErr217ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr192ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr207REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr96ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr138ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr147ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr172REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr180REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr115REQUIRES_VIOLATION, ULTIMATE.startErr134REQUIRES_VIOLATION, ULTIMATE.startErr199REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr164REQUIRES_VIOLATION, ULTIMATE.startErr229REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr210REQUIRES_VIOLATION, ULTIMATE.startErr123ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr241ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr181ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr126REQUIRES_VIOLATION, ULTIMATE.startErr156ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr145REQUIRES_VIOLATION, ULTIMATE.startErr232ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr175REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr240REQUIRES_VIOLATION, ULTIMATE.startErr177ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr110REQUIRES_VIOLATION, ULTIMATE.startErr194REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr129REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr122ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr213REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr113ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr197ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr243ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr141ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr140REQUIRES_VIOLATION, ULTIMATE.startErr222ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr224REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr167REQUIRES_VIOLATION, ULTIMATE.startErr205REQUIRES_VIOLATION, ULTIMATE.startErr188ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr132REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr246ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr170REQUIRES_VIOLATION, ULTIMATE.startErr161ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr143ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr159REQUIRES_VIOLATION, ULTIMATE.startErr202ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr235REQUIRES_VIOLATION, ULTIMATE.startErr94REQUIRES_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr193ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr208REQUIRES_VIOLATION, ULTIMATE.startErr227ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr118ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr236ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr186ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr189REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr152ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr124REQUIRES_VIOLATION]=== [2021-01-07 05:13:33,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:13:33,559 INFO L82 PathProgramCache]: Analyzing trace with hash 933638, now seen corresponding path program 1 times [2021-01-07 05:13:33,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:13:33,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658179452] [2021-01-07 05:13:33,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:13:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:13:33,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:13:33,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658179452] [2021-01-07 05:13:33,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:13:33,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:13:33,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223201099] [2021-01-07 05:13:33,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 05:13:33,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:13:33,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 05:13:33,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:13:33,764 INFO L87 Difference]: Start difference. First operand 653 states. Second operand 2 states. [2021-01-07 05:13:33,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:13:33,817 INFO L93 Difference]: Finished difference Result 653 states and 738 transitions. [2021-01-07 05:13:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 05:13:33,819 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2021-01-07 05:13:33,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:13:33,844 INFO L225 Difference]: With dead ends: 653 [2021-01-07 05:13:33,844 INFO L226 Difference]: Without dead ends: 651 [2021-01-07 05:13:33,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:13:33,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2021-01-07 05:13:33,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 651. [2021-01-07 05:13:33,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2021-01-07 05:13:33,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 736 transitions. [2021-01-07 05:13:33,963 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 736 transitions. Word has length 4 [2021-01-07 05:13:33,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:13:33,963 INFO L481 AbstractCegarLoop]: Abstraction has 651 states and 736 transitions. [2021-01-07 05:13:33,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 05:13:33,964 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 736 transitions. [2021-01-07 05:13:33,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-01-07 05:13:33,964 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:13:33,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-01-07 05:13:33,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:13:33,970 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr219REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr173REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr182ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr200REQUIRES_VIOLATION, ULTIMATE.startErr135REQUIRES_VIOLATION, ULTIMATE.startErr153ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr154REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr191ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr184REQUIRES_VIOLATION, ULTIMATE.startErr230REQUIRES_VIOLATION, ULTIMATE.startErr146ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr218ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr119REQUIRES_VIOLATION, ULTIMATE.startErr211REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr162ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr238ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr127REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr137ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr108ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr165REQUIRES_VIOLATION, ULTIMATE.startErr198ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr130REQUIRES_VIOLATION, ULTIMATE.startErr195REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr149REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr216ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr231ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr214REQUIRES_VIOLATION, ULTIMATE.startErr157ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr92REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr160REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr106ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr168REQUIRES_VIOLATION, ULTIMATE.startErr225REQUIRES_VIOLATION, ULTIMATE.startErr97ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr148ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr206REQUIRES_VIOLATION, ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr242ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr196ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr171REQUIRES_VIOLATION, ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr244REQUIRES_VIOLATION, ULTIMATE.startErr121ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr187ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr223ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr114REQUIRES_VIOLATION, ULTIMATE.startErr179REQUIRES_VIOLATION, ULTIMATE.startErr233ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr133REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr209REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr176ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr158ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr190REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr125REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr112ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr144REQUIRES_VIOLATION, ULTIMATE.startErr109REQUIRES_VIOLATION, ULTIMATE.startErr174REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr226ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr220REQUIRES_VIOLATION, ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr203ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr142ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr221ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr128REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr155REQUIRES_VIOLATION, ULTIMATE.startErr239REQUIRES_VIOLATION, ULTIMATE.startErr151ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr185REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr120REQUIRES_VIOLATION, ULTIMATE.startErr204REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr178ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr139REQUIRES_VIOLATION, ULTIMATE.startErr212REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr166REQUIRES_VIOLATION, ULTIMATE.startErr228ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr131REQUIRES_VIOLATION, ULTIMATE.startErr163ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr150REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr237ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr234REQUIRES_VIOLATION, ULTIMATE.startErr93REQUIRES_VIOLATION, ULTIMATE.startErr98ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr136ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr107ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr215REQUIRES_VIOLATION, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr183ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr201ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr245REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr169REQUIRES_VIOLATION, ULTIMATE.startErr217ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr192ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr207REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr96ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr138ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr147ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr172REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr180REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr115REQUIRES_VIOLATION, ULTIMATE.startErr134REQUIRES_VIOLATION, ULTIMATE.startErr199REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr164REQUIRES_VIOLATION, ULTIMATE.startErr229REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr210REQUIRES_VIOLATION, ULTIMATE.startErr123ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr241ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr181ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr126REQUIRES_VIOLATION, ULTIMATE.startErr156ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr145REQUIRES_VIOLATION, ULTIMATE.startErr232ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr175REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr240REQUIRES_VIOLATION, ULTIMATE.startErr177ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr110REQUIRES_VIOLATION, ULTIMATE.startErr194REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr129REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr122ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr213REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr113ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr197ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr243ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr141ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr140REQUIRES_VIOLATION, ULTIMATE.startErr222ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr224REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr167REQUIRES_VIOLATION, ULTIMATE.startErr205REQUIRES_VIOLATION, ULTIMATE.startErr188ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr132REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr246ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr170REQUIRES_VIOLATION, ULTIMATE.startErr161ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr143ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr159REQUIRES_VIOLATION, ULTIMATE.startErr202ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr235REQUIRES_VIOLATION, ULTIMATE.startErr94REQUIRES_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr193ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr208REQUIRES_VIOLATION, ULTIMATE.startErr227ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr118ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr236ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr186ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr189REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr152ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr124REQUIRES_VIOLATION]=== [2021-01-07 05:13:33,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:13:33,971 INFO L82 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2021-01-07 05:13:33,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:13:33,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643063268] [2021-01-07 05:13:33,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:13:33,993 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 05:13:33,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1634274695] [2021-01-07 05:13:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:13:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:13:34,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-07 05:13:34,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:13:34,194 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-01-07 05:13:34,195 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:13:34,202 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:13:34,203 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:13:34,204 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-01-07 05:13:34,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:13:34,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643063268] [2021-01-07 05:13:34,212 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 05:13:34,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634274695] [2021-01-07 05:13:34,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:13:34,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:13:34,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354892451] [2021-01-07 05:13:34,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:13:34,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:13:34,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:13:34,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:13:34,217 INFO L87 Difference]: Start difference. First operand 651 states and 736 transitions. Second operand 3 states. [2021-01-07 05:13:34,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:13:34,892 INFO L93 Difference]: Finished difference Result 1168 states and 1327 transitions. [2021-01-07 05:13:34,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:13:34,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-01-07 05:13:34,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:13:34,900 INFO L225 Difference]: With dead ends: 1168 [2021-01-07 05:13:34,900 INFO L226 Difference]: Without dead ends: 1168 [2021-01-07 05:13:34,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:13:34,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2021-01-07 05:13:34,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 645. [2021-01-07 05:13:34,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2021-01-07 05:13:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 730 transitions. [2021-01-07 05:13:34,925 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 730 transitions. Word has length 4 [2021-01-07 05:13:34,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:13:34,925 INFO L481 AbstractCegarLoop]: Abstraction has 645 states and 730 transitions. [2021-01-07 05:13:34,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:13:34,926 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 730 transitions. [2021-01-07 05:13:34,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-01-07 05:13:34,926 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:13:34,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-01-07 05:13:35,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-01-07 05:13:35,143 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr219REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr173REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr182ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr200REQUIRES_VIOLATION, ULTIMATE.startErr135REQUIRES_VIOLATION, ULTIMATE.startErr153ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr154REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr191ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr184REQUIRES_VIOLATION, ULTIMATE.startErr230REQUIRES_VIOLATION, ULTIMATE.startErr146ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr218ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr119REQUIRES_VIOLATION, ULTIMATE.startErr211REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr162ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr238ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr127REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr137ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr108ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr165REQUIRES_VIOLATION, ULTIMATE.startErr198ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr130REQUIRES_VIOLATION, ULTIMATE.startErr195REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr149REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr216ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr231ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr214REQUIRES_VIOLATION, ULTIMATE.startErr157ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr92REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr160REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr106ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr168REQUIRES_VIOLATION, ULTIMATE.startErr225REQUIRES_VIOLATION, ULTIMATE.startErr97ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr148ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr206REQUIRES_VIOLATION, ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr242ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr196ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr171REQUIRES_VIOLATION, ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr244REQUIRES_VIOLATION, ULTIMATE.startErr121ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr187ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr223ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr114REQUIRES_VIOLATION, ULTIMATE.startErr179REQUIRES_VIOLATION, ULTIMATE.startErr233ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr133REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr209REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr176ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr158ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr190REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr125REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr112ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr144REQUIRES_VIOLATION, ULTIMATE.startErr109REQUIRES_VIOLATION, ULTIMATE.startErr174REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr226ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr220REQUIRES_VIOLATION, ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr203ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr142ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr221ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr128REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr155REQUIRES_VIOLATION, ULTIMATE.startErr239REQUIRES_VIOLATION, ULTIMATE.startErr151ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr185REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr120REQUIRES_VIOLATION, ULTIMATE.startErr204REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr178ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr139REQUIRES_VIOLATION, ULTIMATE.startErr212REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr166REQUIRES_VIOLATION, ULTIMATE.startErr228ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr131REQUIRES_VIOLATION, ULTIMATE.startErr163ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr150REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr237ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr234REQUIRES_VIOLATION, ULTIMATE.startErr93REQUIRES_VIOLATION, ULTIMATE.startErr98ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr136ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr107ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr215REQUIRES_VIOLATION, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr183ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr201ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr245REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr169REQUIRES_VIOLATION, ULTIMATE.startErr217ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr192ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr207REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr96ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr138ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr147ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr172REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr180REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr115REQUIRES_VIOLATION, ULTIMATE.startErr134REQUIRES_VIOLATION, ULTIMATE.startErr199REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr164REQUIRES_VIOLATION, ULTIMATE.startErr229REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr210REQUIRES_VIOLATION, ULTIMATE.startErr123ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr241ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr181ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr126REQUIRES_VIOLATION, ULTIMATE.startErr156ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr145REQUIRES_VIOLATION, ULTIMATE.startErr232ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr175REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr240REQUIRES_VIOLATION, ULTIMATE.startErr177ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr110REQUIRES_VIOLATION, ULTIMATE.startErr194REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr129REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr122ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr213REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr113ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr197ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr243ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr141ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr140REQUIRES_VIOLATION, ULTIMATE.startErr222ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr224REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr167REQUIRES_VIOLATION, ULTIMATE.startErr205REQUIRES_VIOLATION, ULTIMATE.startErr188ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr132REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr246ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr170REQUIRES_VIOLATION, ULTIMATE.startErr161ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr143ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr159REQUIRES_VIOLATION, ULTIMATE.startErr202ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr235REQUIRES_VIOLATION, ULTIMATE.startErr94REQUIRES_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr193ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr208REQUIRES_VIOLATION, ULTIMATE.startErr227ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr118ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr236ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr186ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr189REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr152ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr124REQUIRES_VIOLATION]=== [2021-01-07 05:13:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:13:35,144 INFO L82 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2021-01-07 05:13:35,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:13:35,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044247725] [2021-01-07 05:13:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:13:35,167 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 05:13:35,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1801156597] [2021-01-07 05:13:35,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:13:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:13:35,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 20 conjunts are in the unsatisfiable core [2021-01-07 05:13:35,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:13:35,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:13:35,493 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-01-07 05:13:35,668 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 14 treesize of output 13 [2021-01-07 05:13:35,671 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:13:41,075 WARN L197 SmtUtils]: Spent 5.40 s on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2021-01-07 05:13:41,076 INFO L625 ElimStorePlain]: treesize reduction 11, result has 91.7 percent of original size [2021-01-07 05:13:41,090 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 15 treesize of output 14 [2021-01-07 05:13:41,091 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:13:41,619 WARN L197 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-01-07 05:13:41,620 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:13:41,697 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2021-01-07 05:13:41,697 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:134, output treesize:121 [2021-01-07 05:13:41,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:13:41,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044247725] [2021-01-07 05:13:41,960 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 05:13:41,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801156597] [2021-01-07 05:13:41,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:13:41,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:13:41,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886304895] [2021-01-07 05:13:41,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:13:41,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:13:41,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:13:41,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:13:41,965 INFO L87 Difference]: Start difference. First operand 645 states and 730 transitions. Second operand 3 states. [2021-01-07 05:13:48,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:13:48,885 INFO L93 Difference]: Finished difference Result 660 states and 747 transitions. [2021-01-07 05:13:48,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:13:48,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-01-07 05:13:48,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:13:48,890 INFO L225 Difference]: With dead ends: 660 [2021-01-07 05:13:48,890 INFO L226 Difference]: Without dead ends: 660 [2021-01-07 05:13:48,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:13:48,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2021-01-07 05:13:48,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 648. [2021-01-07 05:13:48,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2021-01-07 05:13:48,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 733 transitions. [2021-01-07 05:13:48,912 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 733 transitions. Word has length 5 [2021-01-07 05:13:48,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:13:48,912 INFO L481 AbstractCegarLoop]: Abstraction has 648 states and 733 transitions. [2021-01-07 05:13:48,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:13:48,913 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 733 transitions. [2021-01-07 05:13:48,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-07 05:13:48,913 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:13:48,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:13:49,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:13:49,139 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr219REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr173REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr182ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr200REQUIRES_VIOLATION, ULTIMATE.startErr135REQUIRES_VIOLATION, ULTIMATE.startErr153ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr154REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr191ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr184REQUIRES_VIOLATION, ULTIMATE.startErr230REQUIRES_VIOLATION, ULTIMATE.startErr146ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr218ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr119REQUIRES_VIOLATION, ULTIMATE.startErr211REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr162ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr238ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr127REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr137ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr108ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr165REQUIRES_VIOLATION, ULTIMATE.startErr198ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr130REQUIRES_VIOLATION, ULTIMATE.startErr195REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr149REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr216ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr231ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr214REQUIRES_VIOLATION, ULTIMATE.startErr157ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr92REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr160REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr106ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr168REQUIRES_VIOLATION, ULTIMATE.startErr225REQUIRES_VIOLATION, ULTIMATE.startErr97ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr148ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr206REQUIRES_VIOLATION, ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr242ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr196ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr171REQUIRES_VIOLATION, ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr244REQUIRES_VIOLATION, ULTIMATE.startErr121ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr187ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr223ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr114REQUIRES_VIOLATION, ULTIMATE.startErr179REQUIRES_VIOLATION, ULTIMATE.startErr233ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr133REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr209REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr176ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr158ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr190REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr125REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr112ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr144REQUIRES_VIOLATION, ULTIMATE.startErr109REQUIRES_VIOLATION, ULTIMATE.startErr174REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr226ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr220REQUIRES_VIOLATION, ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr203ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr142ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr221ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr128REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr155REQUIRES_VIOLATION, ULTIMATE.startErr239REQUIRES_VIOLATION, ULTIMATE.startErr151ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr185REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr120REQUIRES_VIOLATION, ULTIMATE.startErr204REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr178ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr139REQUIRES_VIOLATION, ULTIMATE.startErr212REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr166REQUIRES_VIOLATION, ULTIMATE.startErr228ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr131REQUIRES_VIOLATION, ULTIMATE.startErr163ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr150REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr237ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr234REQUIRES_VIOLATION, ULTIMATE.startErr93REQUIRES_VIOLATION, ULTIMATE.startErr98ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr136ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr107ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr215REQUIRES_VIOLATION, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr183ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr201ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr245REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr169REQUIRES_VIOLATION, ULTIMATE.startErr217ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr192ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr207REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr96ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr138ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr147ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr172REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr180REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr115REQUIRES_VIOLATION, ULTIMATE.startErr134REQUIRES_VIOLATION, ULTIMATE.startErr199REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr164REQUIRES_VIOLATION, ULTIMATE.startErr229REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr210REQUIRES_VIOLATION, ULTIMATE.startErr123ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr241ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr181ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr126REQUIRES_VIOLATION, ULTIMATE.startErr156ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr145REQUIRES_VIOLATION, ULTIMATE.startErr232ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr175REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr240REQUIRES_VIOLATION, ULTIMATE.startErr177ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr110REQUIRES_VIOLATION, ULTIMATE.startErr194REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr129REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr122ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr213REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr113ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr197ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr243ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr141ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr140REQUIRES_VIOLATION, ULTIMATE.startErr222ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr224REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr167REQUIRES_VIOLATION, ULTIMATE.startErr205REQUIRES_VIOLATION, ULTIMATE.startErr188ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr132REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr246ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr170REQUIRES_VIOLATION, ULTIMATE.startErr161ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr143ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr159REQUIRES_VIOLATION, ULTIMATE.startErr202ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr235REQUIRES_VIOLATION, ULTIMATE.startErr94REQUIRES_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr193ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr208REQUIRES_VIOLATION, ULTIMATE.startErr227ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr118ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr236ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr186ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr189REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr152ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr124REQUIRES_VIOLATION]=== [2021-01-07 05:13:49,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:13:49,141 INFO L82 PathProgramCache]: Analyzing trace with hash 894034927, now seen corresponding path program 1 times [2021-01-07 05:13:49,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:13:49,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718039537] [2021-01-07 05:13:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:13:49,162 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 05:13:49,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1791792179] [2021-01-07 05:13:49,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:13:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:13:49,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 20 conjunts are in the unsatisfiable core [2021-01-07 05:13:49,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:13:49,357 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:13:49,384 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-01-07 05:13:49,680 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 14 treesize of output 13 [2021-01-07 05:13:49,681 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:04,099 WARN L197 SmtUtils]: Spent 14.42 s on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2021-01-07 05:14:04,100 INFO L625 ElimStorePlain]: treesize reduction 11, result has 91.7 percent of original size [2021-01-07 05:14:04,117 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 15 treesize of output 14 [2021-01-07 05:14:04,118 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:08,529 WARN L197 SmtUtils]: Spent 4.41 s on a formula simplification that was a NOOP. DAG size: 44 [2021-01-07 05:14:08,529 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:14:08,552 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2021-01-07 05:14:08,553 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:134, output treesize:121 [2021-01-07 05:14:08,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:14:08,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718039537] [2021-01-07 05:14:08,704 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 05:14:08,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791792179] [2021-01-07 05:14:08,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:14:08,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:14:08,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179419501] [2021-01-07 05:14:08,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:14:08,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:14:08,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:14:08,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:14:08,707 INFO L87 Difference]: Start difference. First operand 648 states and 733 transitions. Second operand 3 states. [2021-01-07 05:14:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:14:15,999 INFO L93 Difference]: Finished difference Result 653 states and 739 transitions. [2021-01-07 05:14:15,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:14:15,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2021-01-07 05:14:15,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:14:16,004 INFO L225 Difference]: With dead ends: 653 [2021-01-07 05:14:16,004 INFO L226 Difference]: Without dead ends: 653 [2021-01-07 05:14:16,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:14:16,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2021-01-07 05:14:16,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 640. [2021-01-07 05:14:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2021-01-07 05:14:16,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 725 transitions. [2021-01-07 05:14:16,020 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 725 transitions. Word has length 13 [2021-01-07 05:14:16,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:14:16,020 INFO L481 AbstractCegarLoop]: Abstraction has 640 states and 725 transitions. [2021-01-07 05:14:16,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:14:16,020 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 725 transitions. [2021-01-07 05:14:16,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-07 05:14:16,022 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:14:16,022 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, 1, 1, 1, 1] [2021-01-07 05:14:16,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:14:16,239 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr219REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr173REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr182ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr200REQUIRES_VIOLATION, ULTIMATE.startErr135REQUIRES_VIOLATION, ULTIMATE.startErr153ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr154REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr191ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr184REQUIRES_VIOLATION, ULTIMATE.startErr230REQUIRES_VIOLATION, ULTIMATE.startErr146ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr218ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr119REQUIRES_VIOLATION, ULTIMATE.startErr211REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr162ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr238ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr127REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr137ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr108ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr165REQUIRES_VIOLATION, ULTIMATE.startErr198ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr130REQUIRES_VIOLATION, ULTIMATE.startErr195REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr149REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr216ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr231ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr214REQUIRES_VIOLATION, ULTIMATE.startErr157ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr92REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr160REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr106ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr168REQUIRES_VIOLATION, ULTIMATE.startErr225REQUIRES_VIOLATION, ULTIMATE.startErr97ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr148ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr206REQUIRES_VIOLATION, ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr242ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr196ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr171REQUIRES_VIOLATION, ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr244REQUIRES_VIOLATION, ULTIMATE.startErr121ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr187ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr223ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr114REQUIRES_VIOLATION, ULTIMATE.startErr179REQUIRES_VIOLATION, ULTIMATE.startErr233ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr133REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr209REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr176ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr158ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr190REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr125REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr112ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr144REQUIRES_VIOLATION, ULTIMATE.startErr109REQUIRES_VIOLATION, ULTIMATE.startErr174REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr226ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr220REQUIRES_VIOLATION, ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr203ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr142ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr221ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr128REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr155REQUIRES_VIOLATION, ULTIMATE.startErr239REQUIRES_VIOLATION, ULTIMATE.startErr151ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr185REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr120REQUIRES_VIOLATION, ULTIMATE.startErr204REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr178ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr139REQUIRES_VIOLATION, ULTIMATE.startErr212REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr166REQUIRES_VIOLATION, ULTIMATE.startErr228ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr131REQUIRES_VIOLATION, ULTIMATE.startErr163ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr150REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr237ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr234REQUIRES_VIOLATION, ULTIMATE.startErr93REQUIRES_VIOLATION, ULTIMATE.startErr98ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr136ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr107ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr215REQUIRES_VIOLATION, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr183ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr201ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr245REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr169REQUIRES_VIOLATION, ULTIMATE.startErr217ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr192ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr207REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr96ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr138ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr147ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr172REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr180REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr115REQUIRES_VIOLATION, ULTIMATE.startErr134REQUIRES_VIOLATION, ULTIMATE.startErr199REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr164REQUIRES_VIOLATION, ULTIMATE.startErr229REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr210REQUIRES_VIOLATION, ULTIMATE.startErr123ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr241ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr181ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr126REQUIRES_VIOLATION, ULTIMATE.startErr156ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr145REQUIRES_VIOLATION, ULTIMATE.startErr232ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr175REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr240REQUIRES_VIOLATION, ULTIMATE.startErr177ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr110REQUIRES_VIOLATION, ULTIMATE.startErr194REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr129REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr122ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr213REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr113ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr197ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr243ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr141ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr140REQUIRES_VIOLATION, ULTIMATE.startErr222ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr224REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr167REQUIRES_VIOLATION, ULTIMATE.startErr205REQUIRES_VIOLATION, ULTIMATE.startErr188ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr132REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr246ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr170REQUIRES_VIOLATION, ULTIMATE.startErr161ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr143ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr159REQUIRES_VIOLATION, ULTIMATE.startErr202ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr235REQUIRES_VIOLATION, ULTIMATE.startErr94REQUIRES_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr193ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr208REQUIRES_VIOLATION, ULTIMATE.startErr227ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr118ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr236ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr186ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr189REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr152ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr124REQUIRES_VIOLATION]=== [2021-01-07 05:14:16,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:14:16,241 INFO L82 PathProgramCache]: Analyzing trace with hash 576387722, now seen corresponding path program 1 times [2021-01-07 05:14:16,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:14:16,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978974994] [2021-01-07 05:14:16,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:14:16,260 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 05:14:16,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [3057436] [2021-01-07 05:14:16,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:14:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:14:16,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 19 conjunts are in the unsatisfiable core [2021-01-07 05:14:16,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:14:16,477 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:14:16,502 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-01-07 05:14:16,647 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 14 treesize of output 13 [2021-01-07 05:14:16,651 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:23,202 WARN L197 SmtUtils]: Spent 6.55 s on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-01-07 05:14:23,215 INFO L625 ElimStorePlain]: treesize reduction 8, result has 93.9 percent of original size [2021-01-07 05:14:23,230 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 14 treesize of output 13 [2021-01-07 05:14:23,231 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:23,447 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-01-07 05:14:23,455 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:14:23,485 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2021-01-07 05:14:23,485 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:133, output treesize:123 [2021-01-07 05:14:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:14:23,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978974994] [2021-01-07 05:14:23,653 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 05:14:23,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3057436] [2021-01-07 05:14:23,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:14:23,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:14:23,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340858593] [2021-01-07 05:14:23,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:14:23,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:14:23,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:14:23,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:14:23,655 INFO L87 Difference]: Start difference. First operand 640 states and 725 transitions. Second operand 3 states. [2021-01-07 05:14:24,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:14:24,705 INFO L93 Difference]: Finished difference Result 644 states and 729 transitions. [2021-01-07 05:14:24,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:14:24,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2021-01-07 05:14:24,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:14:24,710 INFO L225 Difference]: With dead ends: 644 [2021-01-07 05:14:24,710 INFO L226 Difference]: Without dead ends: 644 [2021-01-07 05:14:24,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:14:24,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2021-01-07 05:14:24,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 639. [2021-01-07 05:14:24,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2021-01-07 05:14:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 724 transitions. [2021-01-07 05:14:24,745 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 724 transitions. Word has length 44 [2021-01-07 05:14:24,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:14:24,745 INFO L481 AbstractCegarLoop]: Abstraction has 639 states and 724 transitions. [2021-01-07 05:14:24,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:14:24,746 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 724 transitions. [2021-01-07 05:14:24,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-07 05:14:24,747 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:14:24,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:14:24,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:14:24,964 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr219REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr173REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr182ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr200REQUIRES_VIOLATION, ULTIMATE.startErr135REQUIRES_VIOLATION, ULTIMATE.startErr153ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr154REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr191ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr184REQUIRES_VIOLATION, ULTIMATE.startErr230REQUIRES_VIOLATION, ULTIMATE.startErr146ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr218ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr119REQUIRES_VIOLATION, ULTIMATE.startErr211REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr162ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr238ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr127REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr137ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr108ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr165REQUIRES_VIOLATION, ULTIMATE.startErr198ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr130REQUIRES_VIOLATION, ULTIMATE.startErr195REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr149REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr216ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr231ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr214REQUIRES_VIOLATION, ULTIMATE.startErr157ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr92REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr160REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr106ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr168REQUIRES_VIOLATION, ULTIMATE.startErr225REQUIRES_VIOLATION, ULTIMATE.startErr97ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr148ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr206REQUIRES_VIOLATION, ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr242ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr196ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr171REQUIRES_VIOLATION, ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr244REQUIRES_VIOLATION, ULTIMATE.startErr121ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr187ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr223ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr114REQUIRES_VIOLATION, ULTIMATE.startErr179REQUIRES_VIOLATION, ULTIMATE.startErr233ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr133REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr209REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr176ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr158ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr190REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr125REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr112ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr144REQUIRES_VIOLATION, ULTIMATE.startErr109REQUIRES_VIOLATION, ULTIMATE.startErr174REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr226ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr220REQUIRES_VIOLATION, ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr203ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr142ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr221ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr128REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr155REQUIRES_VIOLATION, ULTIMATE.startErr239REQUIRES_VIOLATION, ULTIMATE.startErr151ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr185REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr120REQUIRES_VIOLATION, ULTIMATE.startErr204REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr178ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr139REQUIRES_VIOLATION, ULTIMATE.startErr212REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr166REQUIRES_VIOLATION, ULTIMATE.startErr228ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr131REQUIRES_VIOLATION, ULTIMATE.startErr163ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr150REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr237ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr234REQUIRES_VIOLATION, ULTIMATE.startErr93REQUIRES_VIOLATION, ULTIMATE.startErr98ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr136ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr107ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr215REQUIRES_VIOLATION, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr183ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr201ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr245REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr169REQUIRES_VIOLATION, ULTIMATE.startErr217ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr192ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr207REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr96ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr138ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr147ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr172REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr180REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr115REQUIRES_VIOLATION, ULTIMATE.startErr134REQUIRES_VIOLATION, ULTIMATE.startErr199REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr164REQUIRES_VIOLATION, ULTIMATE.startErr229REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr210REQUIRES_VIOLATION, ULTIMATE.startErr123ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr241ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr181ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr126REQUIRES_VIOLATION, ULTIMATE.startErr156ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr145REQUIRES_VIOLATION, ULTIMATE.startErr232ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr175REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr240REQUIRES_VIOLATION, ULTIMATE.startErr177ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr110REQUIRES_VIOLATION, ULTIMATE.startErr194REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr129REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr122ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr213REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr113ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr197ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr243ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr141ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr140REQUIRES_VIOLATION, ULTIMATE.startErr222ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr224REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr167REQUIRES_VIOLATION, ULTIMATE.startErr205REQUIRES_VIOLATION, ULTIMATE.startErr188ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr132REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr246ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr170REQUIRES_VIOLATION, ULTIMATE.startErr161ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr143ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr159REQUIRES_VIOLATION, ULTIMATE.startErr202ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr235REQUIRES_VIOLATION, ULTIMATE.startErr94REQUIRES_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr193ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr208REQUIRES_VIOLATION, ULTIMATE.startErr227ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr118ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr236ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr186ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr189REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr152ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr124REQUIRES_VIOLATION]=== [2021-01-07 05:14:24,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:14:24,965 INFO L82 PathProgramCache]: Analyzing trace with hash -144007726, now seen corresponding path program 1 times [2021-01-07 05:14:24,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:14:24,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428579972] [2021-01-07 05:14:24,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:14:24,981 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 05:14:24,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828966484] [2021-01-07 05:14:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:14:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:14:25,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-07 05:14:25,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:14:25,153 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-01-07 05:14:25,153 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:25,156 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:14:25,157 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:14:25,157 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-01-07 05:14:25,217 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:14:25,217 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2021-01-07 05:14:25,219 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:25,237 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2021-01-07 05:14:25,240 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:14:25,240 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2021-01-07 05:14:25,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:14:25,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428579972] [2021-01-07 05:14:25,270 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 05:14:25,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828966484] [2021-01-07 05:14:25,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:14:25,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 05:14:25,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567353267] [2021-01-07 05:14:25,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 05:14:25,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:14:25,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 05:14:25,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:14:25,275 INFO L87 Difference]: Start difference. First operand 639 states and 724 transitions. Second operand 7 states. [2021-01-07 05:14:26,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:14:26,605 INFO L93 Difference]: Finished difference Result 1192 states and 1355 transitions. [2021-01-07 05:14:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-07 05:14:26,606 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2021-01-07 05:14:26,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:14:26,612 INFO L225 Difference]: With dead ends: 1192 [2021-01-07 05:14:26,613 INFO L226 Difference]: Without dead ends: 1192 [2021-01-07 05:14:26,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-07 05:14:26,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2021-01-07 05:14:26,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 637. [2021-01-07 05:14:26,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2021-01-07 05:14:26,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 722 transitions. [2021-01-07 05:14:26,630 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 722 transitions. Word has length 50 [2021-01-07 05:14:26,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:14:26,630 INFO L481 AbstractCegarLoop]: Abstraction has 637 states and 722 transitions. [2021-01-07 05:14:26,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 05:14:26,630 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 722 transitions. [2021-01-07 05:14:26,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-07 05:14:26,631 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:14:26,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:14:26,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-07 05:14:26,848 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr219REQUIRES_VIOLATION, ULTIMATE.startErr89REQUIRES_VIOLATION, ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr173REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr182ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr200REQUIRES_VIOLATION, ULTIMATE.startErr135REQUIRES_VIOLATION, ULTIMATE.startErr153ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr154REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr191ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr100REQUIRES_VIOLATION, ULTIMATE.startErr184REQUIRES_VIOLATION, ULTIMATE.startErr230REQUIRES_VIOLATION, ULTIMATE.startErr146ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr218ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr119REQUIRES_VIOLATION, ULTIMATE.startErr211REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr162ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr238ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr127REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr137ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr108ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr165REQUIRES_VIOLATION, ULTIMATE.startErr198ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr130REQUIRES_VIOLATION, ULTIMATE.startErr195REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr149REQUIRES_VIOLATION, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr216ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr231ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr214REQUIRES_VIOLATION, ULTIMATE.startErr157ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr92REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr160REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr106ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr84REQUIRES_VIOLATION, ULTIMATE.startErr168REQUIRES_VIOLATION, ULTIMATE.startErr225REQUIRES_VIOLATION, ULTIMATE.startErr97ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr148ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION, ULTIMATE.startErr206REQUIRES_VIOLATION, ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr242ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr196ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr87REQUIRES_VIOLATION, ULTIMATE.startErr171REQUIRES_VIOLATION, ULTIMATE.startErr103ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr244REQUIRES_VIOLATION, ULTIMATE.startErr121ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr187ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr223ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr95REQUIRES_VIOLATION, ULTIMATE.startErr114REQUIRES_VIOLATION, ULTIMATE.startErr179REQUIRES_VIOLATION, ULTIMATE.startErr233ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr133REQUIRES_VIOLATION, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr209REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr176ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr158ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr190REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr125REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr112ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr144REQUIRES_VIOLATION, ULTIMATE.startErr109REQUIRES_VIOLATION, ULTIMATE.startErr174REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr226ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr220REQUIRES_VIOLATION, ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr203ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr142ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr221ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr128REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr90REQUIRES_VIOLATION, ULTIMATE.startErr155REQUIRES_VIOLATION, ULTIMATE.startErr239REQUIRES_VIOLATION, ULTIMATE.startErr151ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr185REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr120REQUIRES_VIOLATION, ULTIMATE.startErr204REQUIRES_VIOLATION, ULTIMATE.startErr74REQUIRES_VIOLATION, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr178ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr139REQUIRES_VIOLATION, ULTIMATE.startErr212REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr166REQUIRES_VIOLATION, ULTIMATE.startErr228ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr131REQUIRES_VIOLATION, ULTIMATE.startErr163ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr150REQUIRES_VIOLATION, ULTIMATE.startErr85REQUIRES_VIOLATION, ULTIMATE.startErr237ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr234REQUIRES_VIOLATION, ULTIMATE.startErr93REQUIRES_VIOLATION, ULTIMATE.startErr98ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr136ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr107ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr215REQUIRES_VIOLATION, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr183ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr116ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr201ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr245REQUIRES_VIOLATION, ULTIMATE.startErr104REQUIRES_VIOLATION, ULTIMATE.startErr169REQUIRES_VIOLATION, ULTIMATE.startErr217ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr192ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr207REQUIRES_VIOLATION, ULTIMATE.startErr88REQUIRES_VIOLATION, ULTIMATE.startErr96ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr138ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr147ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr172REQUIRES_VIOLATION, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr180REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr115REQUIRES_VIOLATION, ULTIMATE.startErr134REQUIRES_VIOLATION, ULTIMATE.startErr199REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr99REQUIRES_VIOLATION, ULTIMATE.startErr164REQUIRES_VIOLATION, ULTIMATE.startErr229REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr210REQUIRES_VIOLATION, ULTIMATE.startErr123ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr241ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr181ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr126REQUIRES_VIOLATION, ULTIMATE.startErr156ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr80REQUIRES_VIOLATION, ULTIMATE.startErr145REQUIRES_VIOLATION, ULTIMATE.startErr232ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr175REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr240REQUIRES_VIOLATION, ULTIMATE.startErr177ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr110REQUIRES_VIOLATION, ULTIMATE.startErr194REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr129REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr122ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr213REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr91REQUIRES_VIOLATION, ULTIMATE.startErr113ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr197ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr243ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr141ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr75REQUIRES_VIOLATION, ULTIMATE.startErr140REQUIRES_VIOLATION, ULTIMATE.startErr222ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr224REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr167REQUIRES_VIOLATION, ULTIMATE.startErr205REQUIRES_VIOLATION, ULTIMATE.startErr188ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr132REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr246ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr86REQUIRES_VIOLATION, ULTIMATE.startErr170REQUIRES_VIOLATION, ULTIMATE.startErr161ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr143ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr159REQUIRES_VIOLATION, ULTIMATE.startErr202ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr235REQUIRES_VIOLATION, ULTIMATE.startErr94REQUIRES_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr193ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr208REQUIRES_VIOLATION, ULTIMATE.startErr227ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr118ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr236ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr102ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr186ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr105REQUIRES_VIOLATION, ULTIMATE.startErr189REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr152ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr124REQUIRES_VIOLATION]=== [2021-01-07 05:14:26,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:14:26,849 INFO L82 PathProgramCache]: Analyzing trace with hash -144007725, now seen corresponding path program 1 times [2021-01-07 05:14:26,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:14:26,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792302292] [2021-01-07 05:14:26,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:14:26,881 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 05:14:26,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401994864] [2021-01-07 05:14:26,883 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 [2021-01-07 05:14:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:14:27,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 36 conjunts are in the unsatisfiable core [2021-01-07 05:14:27,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:14:27,091 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:14:27,114 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-01-07 05:14:31,225 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select |#valid| ULTIMATE.start_calloc_model_~ptr~0.base) 1) [2021-01-07 05:14:31,226 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-01-07 05:14:31,227 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:31,267 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-01-07 05:14:31,268 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:40,503 WARN L197 SmtUtils]: Spent 9.24 s on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2021-01-07 05:14:40,504 INFO L625 ElimStorePlain]: treesize reduction 11, result has 92.3 percent of original size [2021-01-07 05:14:40,520 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 14 treesize of output 13 [2021-01-07 05:14:40,521 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:46,730 WARN L197 SmtUtils]: Spent 6.21 s on a formula simplification that was a NOOP. DAG size: 51 [2021-01-07 05:14:46,731 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:14:46,771 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 14 treesize of output 13 [2021-01-07 05:14:46,772 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:46,884 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-01-07 05:14:46,885 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:14:46,945 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2021-01-07 05:14:46,946 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:145, output treesize:130 [2021-01-07 05:14:47,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:14:50,302 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-01-07 05:14:52,525 WARN L197 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 53 [2021-01-07 05:14:52,741 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:14:52,782 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:14:52,830 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:14:52,928 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:14:52,929 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-01-07 05:14:52,930 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:14:52,932 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:52,950 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:14:52,951 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-01-07 05:14:52,952 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:14:52,954 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:53,068 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-01-07 05:14:53,068 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:14:53,089 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-01-07 05:14:53,090 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:53,106 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-01-07 05:14:53,107 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-07 05:14:53,229 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-01-07 05:14:53,230 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:14:53,253 INFO L547 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 2 dim-1 vars, End of recursive call: 12 dim-0 vars, and 2 xjuncts. [2021-01-07 05:14:53,253 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 11 variables, input treesize:151, output treesize:137 [2021-01-07 05:14:59,532 WARN L197 SmtUtils]: Spent 6.16 s on a formula simplification that was a NOOP. DAG size: 69 [2021-01-07 05:15:00,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:15:00,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792302292] [2021-01-07 05:15:00,115 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 05:15:00,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401994864] [2021-01-07 05:15:00,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:15:00,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-07 05:15:00,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472145243] [2021-01-07 05:15:00,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-07 05:15:00,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:15:00,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-07 05:15:00,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:15:00,122 INFO L87 Difference]: Start difference. First operand 637 states and 722 transitions. Second operand 9 states. [2021-01-07 05:15:35,019 WARN L197 SmtUtils]: Spent 21.83 s on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2021-01-07 05:16:36,991 WARN L197 SmtUtils]: Spent 1.03 m on a formula simplification. DAG size of input: 82 DAG size of output: 80