/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-dcfa08f [2020-12-23 17:02:07,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 17:02:07,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 17:02:07,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 17:02:07,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 17:02:07,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 17:02:07,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 17:02:07,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 17:02:07,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 17:02:07,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 17:02:07,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 17:02:07,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 17:02:07,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 17:02:07,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 17:02:07,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 17:02:07,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 17:02:07,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 17:02:07,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 17:02:07,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 17:02:07,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 17:02:07,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 17:02:07,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 17:02:07,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 17:02:07,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 17:02:07,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 17:02:07,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 17:02:07,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 17:02:07,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 17:02:07,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 17:02:07,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 17:02:07,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 17:02:07,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 17:02:07,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 17:02:07,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 17:02:07,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 17:02:07,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 17:02:07,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 17:02:07,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 17:02:07,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 17:02:07,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 17:02:07,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 17:02:07,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-23 17:02:07,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 17:02:07,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 17:02:07,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 17:02:07,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 17:02:07,486 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 17:02:07,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 17:02:07,487 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-23 17:02:07,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 17:02:07,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 17:02:07,487 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-23 17:02:07,488 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-23 17:02:07,488 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-23 17:02:07,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 17:02:07,488 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-23 17:02:07,489 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 17:02:07,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 17:02:07,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 17:02:07,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 17:02:07,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 17:02:07,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 17:02:07,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 17:02:07,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 17:02:07,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 17:02:07,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 17:02:07,491 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 17:02:07,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 17:02:07,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 17:02:07,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 17:02:07,859 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 17:02:07,860 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 17:02:07,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0235-1.i [2020-12-23 17:02:07,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5ec2616d1/a45a884c564f491fa2bfdd99304df291/FLAG87115006f [2020-12-23 17:02:08,692 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 17:02:08,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/memsafety/test-0235-1.i [2020-12-23 17:02:08,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5ec2616d1/a45a884c564f491fa2bfdd99304df291/FLAG87115006f [2020-12-23 17:02:08,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5ec2616d1/a45a884c564f491fa2bfdd99304df291 [2020-12-23 17:02:08,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 17:02:08,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 17:02:08,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 17:02:08,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 17:02:08,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 17:02:08,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:02:08" (1/1) ... [2020-12-23 17:02:08,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45cdfdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:08, skipping insertion in model container [2020-12-23 17:02:08,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:02:08" (1/1) ... [2020-12-23 17:02:08,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 17:02:09,059 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,] [2020-12-23 17:02:09,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:02:09,557 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,] [2020-12-23 17:02:09,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 17:02:09,750 INFO L208 MainTranslator]: Completed translation [2020-12-23 17:02:09,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09 WrapperNode [2020-12-23 17:02:09,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 17:02:09,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 17:02:09,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 17:02:09,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 17:02:09,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09" (1/1) ... [2020-12-23 17:02:09,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09" (1/1) ... [2020-12-23 17:02:09,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 17:02:09,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 17:02:09,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 17:02:09,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 17:02:09,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09" (1/1) ... [2020-12-23 17:02:09,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09" (1/1) ... [2020-12-23 17:02:09,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09" (1/1) ... [2020-12-23 17:02:09,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09" (1/1) ... [2020-12-23 17:02:09,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09" (1/1) ... [2020-12-23 17:02:09,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09" (1/1) ... [2020-12-23 17:02:09,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09" (1/1) ... [2020-12-23 17:02:09,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 17:02:09,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 17:02:09,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 17:02:09,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 17:02:09,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 17:02:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 17:02:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 17:02:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 17:02:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 17:02:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 17:02:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-23 17:02:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 17:02:10,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 17:02:10,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 17:02:11,771 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 17:02:11,771 INFO L299 CfgBuilder]: Removed 130 assume(true) statements. [2020-12-23 17:02:11,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:02:11 BoogieIcfgContainer [2020-12-23 17:02:11,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 17:02:11,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 17:02:11,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 17:02:11,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 17:02:11,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:02:08" (1/3) ... [2020-12-23 17:02:11,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e24b7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:02:11, skipping insertion in model container [2020-12-23 17:02:11,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:02:09" (2/3) ... [2020-12-23 17:02:11,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e24b7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:02:11, skipping insertion in model container [2020-12-23 17:02:11,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:02:11" (3/3) ... [2020-12-23 17:02:11,789 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0235-1.i [2020-12-23 17:02:11,796 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 17:02:11,801 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 247 error locations. [2020-12-23 17:02:11,824 INFO L253 AbstractCegarLoop]: Starting to check reachability of 247 error locations. [2020-12-23 17:02:11,845 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 17:02:11,845 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-23 17:02:11,845 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 17:02:11,846 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 17:02:11,846 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 17:02:11,846 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 17:02:11,846 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 17:02:11,846 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 17:02:11,901 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states. [2020-12-23 17:02:11,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 17:02:11,912 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:02:11,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 17:02:11,914 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]=== [2020-12-23 17:02:11,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:02:11,925 INFO L82 PathProgramCache]: Analyzing trace with hash 933638, now seen corresponding path program 1 times [2020-12-23 17:02:11,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:02:11,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689167712] [2020-12-23 17:02:11,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:02:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:02:12,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:02:12,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689167712] [2020-12-23 17:02:12,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:02:12,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:02:12,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512558054] [2020-12-23 17:02:12,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 17:02:12,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:02:12,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 17:02:12,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 17:02:12,121 INFO L87 Difference]: Start difference. First operand 653 states. Second operand 2 states. [2020-12-23 17:02:12,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:02:12,177 INFO L93 Difference]: Finished difference Result 653 states and 738 transitions. [2020-12-23 17:02:12,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 17:02:12,179 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-12-23 17:02:12,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:02:12,199 INFO L225 Difference]: With dead ends: 653 [2020-12-23 17:02:12,199 INFO L226 Difference]: Without dead ends: 651 [2020-12-23 17:02:12,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 17:02:12,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-12-23 17:02:12,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 651. [2020-12-23 17:02:12,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2020-12-23 17:02:12,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 736 transitions. [2020-12-23 17:02:12,378 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 736 transitions. Word has length 4 [2020-12-23 17:02:12,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:02:12,379 INFO L481 AbstractCegarLoop]: Abstraction has 651 states and 736 transitions. [2020-12-23 17:02:12,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 17:02:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 736 transitions. [2020-12-23 17:02:12,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 17:02:12,380 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:02:12,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 17:02:12,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 17:02:12,383 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]=== [2020-12-23 17:02:12,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:02:12,386 INFO L82 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2020-12-23 17:02:12,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:02:12,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428903337] [2020-12-23 17:02:12,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:02:12,418 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:02:12,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1270626907] [2020-12-23 17:02:12,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:02:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:02:12,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 17:02:12,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:02:12,619 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 17:02:12,620 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:12,627 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:02:12,628 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:02:12,628 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:02:12,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:02:12,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428903337] [2020-12-23 17:02:12,634 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:02:12,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270626907] [2020-12-23 17:02:12,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:02:12,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:02:12,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811721913] [2020-12-23 17:02:12,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:02:12,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:02:12,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:02:12,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:02:12,641 INFO L87 Difference]: Start difference. First operand 651 states and 736 transitions. Second operand 3 states. [2020-12-23 17:02:13,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:02:13,289 INFO L93 Difference]: Finished difference Result 1168 states and 1327 transitions. [2020-12-23 17:02:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:02:13,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-23 17:02:13,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:02:13,296 INFO L225 Difference]: With dead ends: 1168 [2020-12-23 17:02:13,297 INFO L226 Difference]: Without dead ends: 1168 [2020-12-23 17:02:13,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:02:13,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2020-12-23 17:02:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 645. [2020-12-23 17:02:13,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-12-23 17:02:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 730 transitions. [2020-12-23 17:02:13,318 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 730 transitions. Word has length 4 [2020-12-23 17:02:13,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:02:13,318 INFO L481 AbstractCegarLoop]: Abstraction has 645 states and 730 transitions. [2020-12-23 17:02:13,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:02:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 730 transitions. [2020-12-23 17:02:13,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-23 17:02:13,319 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:02:13,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-23 17:02:13,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-23 17:02:13,536 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]=== [2020-12-23 17:02:13,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:02:13,538 INFO L82 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2020-12-23 17:02:13,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:02:13,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393466899] [2020-12-23 17:02:13,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:02:13,551 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:02:13,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514334522] [2020-12-23 17:02:13,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:02:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:02:13,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-23 17:02:13,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:02:13,732 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:02:13,820 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 17:02:13,952 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 [2020-12-23 17:02:13,953 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:19,038 WARN L197 SmtUtils]: Spent 5.08 s on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-12-23 17:02:19,039 INFO L625 ElimStorePlain]: treesize reduction 11, result has 91.7 percent of original size [2020-12-23 17:02:19,052 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 [2020-12-23 17:02:19,054 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:19,605 WARN L197 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-12-23 17:02:19,607 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:02:19,663 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. [2020-12-23 17:02:19,664 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:134, output treesize:121 [2020-12-23 17:02:19,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:02:19,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393466899] [2020-12-23 17:02:19,829 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:02:19,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514334522] [2020-12-23 17:02:19,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:02:19,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:02:19,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930595959] [2020-12-23 17:02:19,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:02:19,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:02:19,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:02:19,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:02:19,833 INFO L87 Difference]: Start difference. First operand 645 states and 730 transitions. Second operand 3 states. [2020-12-23 17:02:23,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:02:23,367 INFO L93 Difference]: Finished difference Result 642 states and 727 transitions. [2020-12-23 17:02:23,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:02:23,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-23 17:02:23,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:02:23,372 INFO L225 Difference]: With dead ends: 642 [2020-12-23 17:02:23,372 INFO L226 Difference]: Without dead ends: 642 [2020-12-23 17:02:23,373 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 [2020-12-23 17:02:23,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-12-23 17:02:23,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 640. [2020-12-23 17:02:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2020-12-23 17:02:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 725 transitions. [2020-12-23 17:02:23,386 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 725 transitions. Word has length 5 [2020-12-23 17:02:23,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:02:23,386 INFO L481 AbstractCegarLoop]: Abstraction has 640 states and 725 transitions. [2020-12-23 17:02:23,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:02:23,386 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 725 transitions. [2020-12-23 17:02:23,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 17:02:23,387 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:02:23,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 17:02:23,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:02:23,603 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]=== [2020-12-23 17:02:23,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:02:23,604 INFO L82 PathProgramCache]: Analyzing trace with hash 894034927, now seen corresponding path program 1 times [2020-12-23 17:02:23,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:02:23,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693820488] [2020-12-23 17:02:23,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:02:23,617 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:02:23,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2057836690] [2020-12-23 17:02:23,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:02:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:02:23,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-23 17:02:23,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:02:23,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:02:23,864 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 17:02:23,934 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 [2020-12-23 17:02:23,935 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:29,537 WARN L197 SmtUtils]: Spent 5.60 s on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-12-23 17:02:29,538 INFO L625 ElimStorePlain]: treesize reduction 11, result has 91.7 percent of original size [2020-12-23 17:02:29,549 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 [2020-12-23 17:02:29,549 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:32,109 WARN L197 SmtUtils]: Spent 2.56 s on a formula simplification that was a NOOP. DAG size: 44 [2020-12-23 17:02:32,109 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:02:32,158 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. [2020-12-23 17:02:32,159 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:134, output treesize:121 [2020-12-23 17:02:32,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:02:32,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693820488] [2020-12-23 17:02:32,303 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:02:32,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057836690] [2020-12-23 17:02:32,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:02:32,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 17:02:32,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401475736] [2020-12-23 17:02:32,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 17:02:32,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:02:32,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 17:02:32,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 17:02:32,305 INFO L87 Difference]: Start difference. First operand 640 states and 725 transitions. Second operand 3 states. [2020-12-23 17:02:37,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:02:37,451 INFO L93 Difference]: Finished difference Result 642 states and 727 transitions. [2020-12-23 17:02:37,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 17:02:37,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-23 17:02:37,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:02:37,456 INFO L225 Difference]: With dead ends: 642 [2020-12-23 17:02:37,456 INFO L226 Difference]: Without dead ends: 642 [2020-12-23 17:02:37,456 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 [2020-12-23 17:02:37,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-12-23 17:02:37,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 639. [2020-12-23 17:02:37,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2020-12-23 17:02:37,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 724 transitions. [2020-12-23 17:02:37,468 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 724 transitions. Word has length 13 [2020-12-23 17:02:37,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:02:37,469 INFO L481 AbstractCegarLoop]: Abstraction has 639 states and 724 transitions. [2020-12-23 17:02:37,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 17:02:37,469 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 724 transitions. [2020-12-23 17:02:37,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 17:02:37,471 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:02:37,471 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] [2020-12-23 17:02:37,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:02:37,687 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]=== [2020-12-23 17:02:37,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:02:37,688 INFO L82 PathProgramCache]: Analyzing trace with hash -144007726, now seen corresponding path program 1 times [2020-12-23 17:02:37,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:02:37,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548978578] [2020-12-23 17:02:37,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:02:37,707 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:02:37,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856514192] [2020-12-23 17:02:37,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:02:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:02:37,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 17:02:37,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:02:37,955 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 17:02:37,956 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:37,959 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:02:37,960 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-23 17:02:37,960 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-23 17:02:38,008 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:02:38,009 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-23 17:02:38,013 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:38,028 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-12-23 17:02:38,029 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-23 17:02:38,030 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-12-23 17:02:38,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:02:38,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548978578] [2020-12-23 17:02:38,056 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:02:38,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856514192] [2020-12-23 17:02:38,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:02:38,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 17:02:38,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679714241] [2020-12-23 17:02:38,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 17:02:38,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:02:38,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 17:02:38,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-23 17:02:38,058 INFO L87 Difference]: Start difference. First operand 639 states and 724 transitions. Second operand 7 states. [2020-12-23 17:02:39,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 17:02:39,387 INFO L93 Difference]: Finished difference Result 1192 states and 1355 transitions. [2020-12-23 17:02:39,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 17:02:39,387 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2020-12-23 17:02:39,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 17:02:39,395 INFO L225 Difference]: With dead ends: 1192 [2020-12-23 17:02:39,396 INFO L226 Difference]: Without dead ends: 1192 [2020-12-23 17:02:39,397 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 [2020-12-23 17:02:39,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2020-12-23 17:02:39,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 637. [2020-12-23 17:02:39,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2020-12-23 17:02:39,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 722 transitions. [2020-12-23 17:02:39,413 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 722 transitions. Word has length 50 [2020-12-23 17:02:39,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 17:02:39,413 INFO L481 AbstractCegarLoop]: Abstraction has 637 states and 722 transitions. [2020-12-23 17:02:39,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 17:02:39,414 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 722 transitions. [2020-12-23 17:02:39,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 17:02:39,420 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 17:02:39,420 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] [2020-12-23 17:02:39,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:02:39,635 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]=== [2020-12-23 17:02:39,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 17:02:39,636 INFO L82 PathProgramCache]: Analyzing trace with hash -144007725, now seen corresponding path program 1 times [2020-12-23 17:02:39,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 17:02:39,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924686242] [2020-12-23 17:02:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 17:02:39,670 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 17:02:39,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [833633893] [2020-12-23 17:02:39,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 17:02:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 17:02:39,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 36 conjunts are in the unsatisfiable core [2020-12-23 17:02:39,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 17:02:39,923 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:02:39,949 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-23 17:02:40,050 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 [2020-12-23 17:02:40,051 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:47,321 WARN L197 SmtUtils]: Spent 7.27 s on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-12-23 17:02:47,322 INFO L625 ElimStorePlain]: treesize reduction 11, result has 92.4 percent of original size [2020-12-23 17:02:47,334 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 17:02:47,336 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:47,348 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-23 17:02:47,349 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:47,480 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-12-23 17:02:47,481 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:02:47,499 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 [2020-12-23 17:02:47,500 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:47,591 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:02:47,624 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. [2020-12-23 17:02:47,624 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:145, output treesize:130 [2020-12-23 17:02:49,997 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:02:50,916 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:02:50,960 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:02:51,011 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-23 17:02:51,114 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:02:51,115 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-23 17:02:51,116 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:02:51,118 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:51,140 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:02:51,141 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-12-23 17:02:51,142 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 17:02:51,144 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:51,262 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-23 17:02:51,262 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:02:51,282 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 [2020-12-23 17:02:51,284 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:51,303 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 [2020-12-23 17:02:51,305 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-12-23 17:02:51,406 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-12-23 17:02:51,407 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 17:02:51,433 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. [2020-12-23 17:02:51,433 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 11 variables, input treesize:151, output treesize:137 [2020-12-23 17:02:55,821 WARN L197 SmtUtils]: Spent 4.27 s on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2020-12-23 17:02:56,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 17:02:56,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924686242] [2020-12-23 17:02:56,326 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 17:02:56,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833633893] [2020-12-23 17:02:56,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 17:02:56,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 17:02:56,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731113115] [2020-12-23 17:02:56,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 17:02:56,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 17:02:56,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 17:02:56,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=56, Unknown=1, NotChecked=0, Total=72 [2020-12-23 17:02:56,328 INFO L87 Difference]: Start difference. First operand 637 states and 722 transitions. Second operand 9 states. [2020-12-23 17:03:00,782 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-12-23 17:03:59,504 WARN L197 SmtUtils]: Spent 18.52 s on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-12-23 17:04:31,461 WARN L197 SmtUtils]: Spent 31.85 s on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-12-23 17:05:48,703 WARN L197 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 101 DAG size of output: 98