/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-ext/tree_stack.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:17:38,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:17:38,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:17:38,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:17:39,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:17:39,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:17:39,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:17:39,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:17:39,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:17:39,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:17:39,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:17:39,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:17:39,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:17:39,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:17:39,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:17:39,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:17:39,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:17:39,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:17:39,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:17:39,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:17:39,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:17:39,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:17:39,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:17:39,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:17:39,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-07 05:17:39,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-07 05:17:39,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-07 05:17:39,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-07 05:17:39,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-07 05:17:39,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-07 05:17:39,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:17:39,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:17:39,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:17:39,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:17:39,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:17:39,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:17:39,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:17:39,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:17:39,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:17:39,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:17:39,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:17:39,063 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:17:39,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:17:39,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:17:39,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:17:39,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:17:39,095 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:17:39,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:17:39,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:17:39,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:17:39,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:17:39,097 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:17:39,097 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:17:39,097 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:17:39,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:17:39,098 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:17:39,098 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:17:39,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:17:39,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:17:39,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:17:39,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:17:39,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:17:39,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:17:39,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:17:39,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:17:39,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:17:39,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:17:39,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:17:39,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:17:39,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:17:39,576 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:17:39,578 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:17:39,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/tree_stack.i [2021-01-07 05:17:39,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/38dbcf37f/5f6158ccb3f94f63b9af612187095ea1/FLAGbc1f95d81 [2021-01-07 05:17:40,497 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:17:40,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/memsafety-ext/tree_stack.i [2021-01-07 05:17:40,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/38dbcf37f/5f6158ccb3f94f63b9af612187095ea1/FLAGbc1f95d81 [2021-01-07 05:17:40,731 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/38dbcf37f/5f6158ccb3f94f63b9af612187095ea1 [2021-01-07 05:17:40,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:17:40,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:17:40,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:17:40,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:17:40,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:17:40,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:17:40" (1/1) ... [2021-01-07 05:17:40,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@260dde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:40, skipping insertion in model container [2021-01-07 05:17:40,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:17:40" (1/1) ... [2021-01-07 05:17:40,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:17:40,826 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~root~0,],base],StructAccessExpression[IdentifierExpression[~root~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~root~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~root~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~n~0,],base],StructAccessExpression[IdentifierExpression[~n~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem17,],base],StructAccessExpression[IdentifierExpression[#t~mem17,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem18,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem18,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~n~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~n~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem23,],base],StructAccessExpression[IdentifierExpression[#t~mem23,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem24,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem24,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~s~0,],base],StructAccessExpression[IdentifierExpression[~s~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~s~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~s~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~st~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~st~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~st~0,],base],StructAccessExpression[IdentifierExpression[~st~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~st~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~st~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~st~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~st~0,],base],StructAccessExpression[IdentifierExpression[~st~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~st~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~st~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~s~0,] [2021-01-07 05:17:41,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:17:41,259 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~root~0,],base],StructAccessExpression[IdentifierExpression[~root~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~root~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~root~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~n~0,],base],StructAccessExpression[IdentifierExpression[~n~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem17,],base],StructAccessExpression[IdentifierExpression[#t~mem17,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem18,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem18,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~n~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~n~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem23,],base],StructAccessExpression[IdentifierExpression[#t~mem23,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem24,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem24,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~s~0,],base],StructAccessExpression[IdentifierExpression[~s~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~s~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~s~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~st~0,] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~st~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~st~0,],base],StructAccessExpression[IdentifierExpression[~st~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~st~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~st~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~s~0,] left hand side expression in assignment: lhs: VariableLHS[~st~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~st~0,],base],StructAccessExpression[IdentifierExpression[~st~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~st~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~st~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~s~0,] [2021-01-07 05:17:41,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:17:41,383 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:17:41,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41 WrapperNode [2021-01-07 05:17:41,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:17:41,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:17:41,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:17:41,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:17:41,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41" (1/1) ... [2021-01-07 05:17:41,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41" (1/1) ... [2021-01-07 05:17:41,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:17:41,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:17:41,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:17:41,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:17:41,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41" (1/1) ... [2021-01-07 05:17:41,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41" (1/1) ... [2021-01-07 05:17:41,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41" (1/1) ... [2021-01-07 05:17:41,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41" (1/1) ... [2021-01-07 05:17:41,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41" (1/1) ... [2021-01-07 05:17:41,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41" (1/1) ... [2021-01-07 05:17:41,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41" (1/1) ... [2021-01-07 05:17:41,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:17:41,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:17:41,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:17:41,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:17:41,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:17:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 05:17:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 05:17:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:17:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 05:17:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-07 05:17:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 05:17:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:17:41,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:17:42,742 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:17:42,743 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-01-07 05:17:42,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:17:42 BoogieIcfgContainer [2021-01-07 05:17:42,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:17:42,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:17:42,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:17:42,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:17:42,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:17:40" (1/3) ... [2021-01-07 05:17:42,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150f075b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:17:42, skipping insertion in model container [2021-01-07 05:17:42,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:17:41" (2/3) ... [2021-01-07 05:17:42,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150f075b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:17:42, skipping insertion in model container [2021-01-07 05:17:42,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:17:42" (3/3) ... [2021-01-07 05:17:42,758 INFO L111 eAbstractionObserver]: Analyzing ICFG tree_stack.i [2021-01-07 05:17:42,765 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:17:42,773 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 67 error locations. [2021-01-07 05:17:42,797 INFO L253 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2021-01-07 05:17:42,826 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:17:42,826 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:17:42,826 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:17:42,827 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:17:42,827 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:17:42,827 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:17:42,827 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:17:42,827 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:17:42,850 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2021-01-07 05:17:42,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-07 05:17:42,858 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:42,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-07 05:17:42,860 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:42,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:42,868 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-01-07 05:17:42,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:42,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572985166] [2021-01-07 05:17:42,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:43,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572985166] [2021-01-07 05:17:43,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:43,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:17:43,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794409395] [2021-01-07 05:17:43,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:17:43,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:43,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:17:43,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:43,133 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 3 states. [2021-01-07 05:17:43,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:43,362 INFO L93 Difference]: Finished difference Result 154 states and 164 transitions. [2021-01-07 05:17:43,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:17:43,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-07 05:17:43,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:43,378 INFO L225 Difference]: With dead ends: 154 [2021-01-07 05:17:43,378 INFO L226 Difference]: Without dead ends: 150 [2021-01-07 05:17:43,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:43,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-01-07 05:17:43,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 132. [2021-01-07 05:17:43,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2021-01-07 05:17:43,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 142 transitions. [2021-01-07 05:17:43,432 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 142 transitions. Word has length 3 [2021-01-07 05:17:43,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:43,433 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 142 transitions. [2021-01-07 05:17:43,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:17:43,434 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 142 transitions. [2021-01-07 05:17:43,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-07 05:17:43,434 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:43,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-07 05:17:43,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:17:43,435 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:43,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:43,437 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-01-07 05:17:43,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:43,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740880956] [2021-01-07 05:17:43,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:43,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:43,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740880956] [2021-01-07 05:17:43,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:43,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:17:43,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497169240] [2021-01-07 05:17:43,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:17:43,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:43,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:17:43,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:43,500 INFO L87 Difference]: Start difference. First operand 132 states and 142 transitions. Second operand 3 states. [2021-01-07 05:17:43,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:43,678 INFO L93 Difference]: Finished difference Result 130 states and 140 transitions. [2021-01-07 05:17:43,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:17:43,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-07 05:17:43,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:43,681 INFO L225 Difference]: With dead ends: 130 [2021-01-07 05:17:43,681 INFO L226 Difference]: Without dead ends: 130 [2021-01-07 05:17:43,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:43,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-01-07 05:17:43,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-01-07 05:17:43,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2021-01-07 05:17:43,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 140 transitions. [2021-01-07 05:17:43,694 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 140 transitions. Word has length 3 [2021-01-07 05:17:43,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:43,695 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 140 transitions. [2021-01-07 05:17:43,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:17:43,695 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 140 transitions. [2021-01-07 05:17:43,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 05:17:43,696 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:43,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:43,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:17:43,697 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:43,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:43,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1803031021, now seen corresponding path program 1 times [2021-01-07 05:17:43,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:43,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136189723] [2021-01-07 05:17:43,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:43,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:43,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136189723] [2021-01-07 05:17:43,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:43,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:17:43,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804430258] [2021-01-07 05:17:43,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:17:43,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:43,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:17:43,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:17:43,782 INFO L87 Difference]: Start difference. First operand 130 states and 140 transitions. Second operand 4 states. [2021-01-07 05:17:44,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:44,102 INFO L93 Difference]: Finished difference Result 138 states and 149 transitions. [2021-01-07 05:17:44,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:17:44,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-07 05:17:44,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:44,106 INFO L225 Difference]: With dead ends: 138 [2021-01-07 05:17:44,106 INFO L226 Difference]: Without dead ends: 138 [2021-01-07 05:17:44,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:17:44,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-01-07 05:17:44,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 116. [2021-01-07 05:17:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-01-07 05:17:44,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 127 transitions. [2021-01-07 05:17:44,134 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 127 transitions. Word has length 7 [2021-01-07 05:17:44,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:44,134 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 127 transitions. [2021-01-07 05:17:44,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:17:44,135 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 127 transitions. [2021-01-07 05:17:44,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 05:17:44,135 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:44,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:44,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 05:17:44,139 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:44,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:44,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1803031022, now seen corresponding path program 1 times [2021-01-07 05:17:44,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:44,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126196963] [2021-01-07 05:17:44,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:44,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:44,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126196963] [2021-01-07 05:17:44,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:44,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:17:44,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959857190] [2021-01-07 05:17:44,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:17:44,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:44,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:17:44,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:17:44,265 INFO L87 Difference]: Start difference. First operand 116 states and 127 transitions. Second operand 4 states. [2021-01-07 05:17:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:44,550 INFO L93 Difference]: Finished difference Result 159 states and 177 transitions. [2021-01-07 05:17:44,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 05:17:44,551 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-07 05:17:44,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:44,555 INFO L225 Difference]: With dead ends: 159 [2021-01-07 05:17:44,555 INFO L226 Difference]: Without dead ends: 159 [2021-01-07 05:17:44,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:17:44,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-01-07 05:17:44,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 144. [2021-01-07 05:17:44,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-01-07 05:17:44,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 167 transitions. [2021-01-07 05:17:44,587 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 167 transitions. Word has length 7 [2021-01-07 05:17:44,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:44,587 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 167 transitions. [2021-01-07 05:17:44,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:17:44,588 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 167 transitions. [2021-01-07 05:17:44,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-07 05:17:44,588 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:44,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:44,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 05:17:44,591 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:44,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:44,592 INFO L82 PathProgramCache]: Analyzing trace with hash 59388235, now seen corresponding path program 1 times [2021-01-07 05:17:44,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:44,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098702678] [2021-01-07 05:17:44,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:44,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:44,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098702678] [2021-01-07 05:17:44,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:44,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:17:44,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400102744] [2021-01-07 05:17:44,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:17:44,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:44,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:17:44,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:44,652 INFO L87 Difference]: Start difference. First operand 144 states and 167 transitions. Second operand 3 states. [2021-01-07 05:17:44,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:44,773 INFO L93 Difference]: Finished difference Result 148 states and 171 transitions. [2021-01-07 05:17:44,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:17:44,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-01-07 05:17:44,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:44,774 INFO L225 Difference]: With dead ends: 148 [2021-01-07 05:17:44,775 INFO L226 Difference]: Without dead ends: 148 [2021-01-07 05:17:44,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:44,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-01-07 05:17:44,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2021-01-07 05:17:44,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-01-07 05:17:44,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2021-01-07 05:17:44,781 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 8 [2021-01-07 05:17:44,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:44,781 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2021-01-07 05:17:44,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:17:44,782 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2021-01-07 05:17:44,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-07 05:17:44,782 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:44,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:44,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-07 05:17:44,783 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:44,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:44,784 INFO L82 PathProgramCache]: Analyzing trace with hash 59388236, now seen corresponding path program 1 times [2021-01-07 05:17:44,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:44,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736653863] [2021-01-07 05:17:44,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:44,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:44,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736653863] [2021-01-07 05:17:44,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:44,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:17:44,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568318522] [2021-01-07 05:17:44,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:17:44,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:44,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:17:44,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:44,830 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 3 states. [2021-01-07 05:17:44,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:44,989 INFO L93 Difference]: Finished difference Result 146 states and 169 transitions. [2021-01-07 05:17:44,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:17:44,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-01-07 05:17:44,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:44,991 INFO L225 Difference]: With dead ends: 146 [2021-01-07 05:17:44,991 INFO L226 Difference]: Without dead ends: 146 [2021-01-07 05:17:44,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:44,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-01-07 05:17:44,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 142. [2021-01-07 05:17:44,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2021-01-07 05:17:44,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 166 transitions. [2021-01-07 05:17:44,996 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 166 transitions. Word has length 8 [2021-01-07 05:17:44,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:44,997 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 166 transitions. [2021-01-07 05:17:44,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:17:44,997 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 166 transitions. [2021-01-07 05:17:44,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-07 05:17:44,997 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:44,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:44,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-07 05:17:44,998 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:44,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:44,999 INFO L82 PathProgramCache]: Analyzing trace with hash -447043531, now seen corresponding path program 1 times [2021-01-07 05:17:44,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:45,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919902364] [2021-01-07 05:17:45,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:45,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:45,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919902364] [2021-01-07 05:17:45,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:45,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:17:45,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971332778] [2021-01-07 05:17:45,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:17:45,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:45,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:17:45,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:45,042 INFO L87 Difference]: Start difference. First operand 142 states and 166 transitions. Second operand 3 states. [2021-01-07 05:17:45,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:45,067 INFO L93 Difference]: Finished difference Result 143 states and 166 transitions. [2021-01-07 05:17:45,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:17:45,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-01-07 05:17:45,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:45,069 INFO L225 Difference]: With dead ends: 143 [2021-01-07 05:17:45,069 INFO L226 Difference]: Without dead ends: 143 [2021-01-07 05:17:45,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-01-07 05:17:45,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 142. [2021-01-07 05:17:45,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2021-01-07 05:17:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 165 transitions. [2021-01-07 05:17:45,074 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 165 transitions. Word has length 12 [2021-01-07 05:17:45,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:45,074 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 165 transitions. [2021-01-07 05:17:45,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:17:45,075 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 165 transitions. [2021-01-07 05:17:45,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-07 05:17:45,075 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:45,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:45,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-07 05:17:45,076 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:45,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:45,077 INFO L82 PathProgramCache]: Analyzing trace with hash -973448323, now seen corresponding path program 1 times [2021-01-07 05:17:45,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:45,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305549625] [2021-01-07 05:17:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:45,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305549625] [2021-01-07 05:17:45,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:45,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 05:17:45,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99266152] [2021-01-07 05:17:45,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:17:45,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:45,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:17:45,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:17:45,145 INFO L87 Difference]: Start difference. First operand 142 states and 165 transitions. Second operand 5 states. [2021-01-07 05:17:45,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:45,314 INFO L93 Difference]: Finished difference Result 155 states and 179 transitions. [2021-01-07 05:17:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:17:45,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-07 05:17:45,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:45,317 INFO L225 Difference]: With dead ends: 155 [2021-01-07 05:17:45,317 INFO L226 Difference]: Without dead ends: 155 [2021-01-07 05:17:45,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:17:45,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-01-07 05:17:45,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 139. [2021-01-07 05:17:45,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2021-01-07 05:17:45,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 163 transitions. [2021-01-07 05:17:45,321 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 163 transitions. Word has length 13 [2021-01-07 05:17:45,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:45,322 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 163 transitions. [2021-01-07 05:17:45,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:17:45,322 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 163 transitions. [2021-01-07 05:17:45,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-07 05:17:45,323 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:45,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:45,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-07 05:17:45,323 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:45,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:45,324 INFO L82 PathProgramCache]: Analyzing trace with hash -973448322, now seen corresponding path program 1 times [2021-01-07 05:17:45,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:45,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749044865] [2021-01-07 05:17:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:45,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:45,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749044865] [2021-01-07 05:17:45,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:45,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:17:45,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112415326] [2021-01-07 05:17:45,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:17:45,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:45,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:17:45,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:17:45,427 INFO L87 Difference]: Start difference. First operand 139 states and 163 transitions. Second operand 4 states. [2021-01-07 05:17:45,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:45,649 INFO L93 Difference]: Finished difference Result 178 states and 204 transitions. [2021-01-07 05:17:45,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:17:45,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-01-07 05:17:45,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:45,651 INFO L225 Difference]: With dead ends: 178 [2021-01-07 05:17:45,652 INFO L226 Difference]: Without dead ends: 178 [2021-01-07 05:17:45,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:17:45,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-01-07 05:17:45,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 146. [2021-01-07 05:17:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2021-01-07 05:17:45,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 176 transitions. [2021-01-07 05:17:45,657 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 176 transitions. Word has length 13 [2021-01-07 05:17:45,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:45,657 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 176 transitions. [2021-01-07 05:17:45,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:17:45,657 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 176 transitions. [2021-01-07 05:17:45,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-07 05:17:45,658 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:45,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:45,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-07 05:17:45,659 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:45,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:45,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1836248265, now seen corresponding path program 1 times [2021-01-07 05:17:45,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:45,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75191496] [2021-01-07 05:17:45,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:45,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:45,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75191496] [2021-01-07 05:17:45,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:45,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:17:45,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291970708] [2021-01-07 05:17:45,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:17:45,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:45,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:17:45,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:45,689 INFO L87 Difference]: Start difference. First operand 146 states and 176 transitions. Second operand 3 states. [2021-01-07 05:17:45,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:45,699 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2021-01-07 05:17:45,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:17:45,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-01-07 05:17:45,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:45,702 INFO L225 Difference]: With dead ends: 148 [2021-01-07 05:17:45,702 INFO L226 Difference]: Without dead ends: 148 [2021-01-07 05:17:45,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:17:45,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-01-07 05:17:45,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-01-07 05:17:45,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-01-07 05:17:45,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 178 transitions. [2021-01-07 05:17:45,706 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 178 transitions. Word has length 14 [2021-01-07 05:17:45,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:45,707 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 178 transitions. [2021-01-07 05:17:45,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:17:45,707 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 178 transitions. [2021-01-07 05:17:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-07 05:17:45,708 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:45,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:45,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-07 05:17:45,708 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:45,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:45,709 INFO L82 PathProgramCache]: Analyzing trace with hash -379687684, now seen corresponding path program 1 times [2021-01-07 05:17:45,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:45,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315375284] [2021-01-07 05:17:45,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:45,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315375284] [2021-01-07 05:17:45,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:45,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 05:17:45,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308382884] [2021-01-07 05:17:45,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:17:45,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:45,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:17:45,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:17:45,799 INFO L87 Difference]: Start difference. First operand 148 states and 178 transitions. Second operand 4 states. [2021-01-07 05:17:45,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:45,890 INFO L93 Difference]: Finished difference Result 162 states and 186 transitions. [2021-01-07 05:17:45,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:17:45,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2021-01-07 05:17:45,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:45,892 INFO L225 Difference]: With dead ends: 162 [2021-01-07 05:17:45,892 INFO L226 Difference]: Without dead ends: 162 [2021-01-07 05:17:45,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:17:45,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-01-07 05:17:45,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 149. [2021-01-07 05:17:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2021-01-07 05:17:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 179 transitions. [2021-01-07 05:17:45,904 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 179 transitions. Word has length 16 [2021-01-07 05:17:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:45,905 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 179 transitions. [2021-01-07 05:17:45,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:17:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 179 transitions. [2021-01-07 05:17:45,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-07 05:17:45,907 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:45,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:45,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-07 05:17:45,908 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:45,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:45,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1356387674, now seen corresponding path program 1 times [2021-01-07 05:17:45,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:45,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885795838] [2021-01-07 05:17:45,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:46,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:46,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885795838] [2021-01-07 05:17:46,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:46,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 05:17:46,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759043008] [2021-01-07 05:17:46,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 05:17:46,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:46,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 05:17:46,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:17:46,030 INFO L87 Difference]: Start difference. First operand 149 states and 179 transitions. Second operand 6 states. [2021-01-07 05:17:46,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:46,276 INFO L93 Difference]: Finished difference Result 184 states and 221 transitions. [2021-01-07 05:17:46,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 05:17:46,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-01-07 05:17:46,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:46,278 INFO L225 Difference]: With dead ends: 184 [2021-01-07 05:17:46,278 INFO L226 Difference]: Without dead ends: 184 [2021-01-07 05:17:46,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:17:46,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-01-07 05:17:46,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 163. [2021-01-07 05:17:46,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2021-01-07 05:17:46,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 198 transitions. [2021-01-07 05:17:46,283 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 198 transitions. Word has length 16 [2021-01-07 05:17:46,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:46,283 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 198 transitions. [2021-01-07 05:17:46,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 05:17:46,284 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 198 transitions. [2021-01-07 05:17:46,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:17:46,284 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:46,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:46,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-07 05:17:46,285 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:46,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:46,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1859882866, now seen corresponding path program 1 times [2021-01-07 05:17:46,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:46,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934406276] [2021-01-07 05:17:46,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:46,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934406276] [2021-01-07 05:17:46,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:46,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 05:17:46,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252913985] [2021-01-07 05:17:46,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:17:46,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:46,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:17:46,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:17:46,342 INFO L87 Difference]: Start difference. First operand 163 states and 198 transitions. Second operand 5 states. [2021-01-07 05:17:46,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:46,799 INFO L93 Difference]: Finished difference Result 286 states and 346 transitions. [2021-01-07 05:17:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:17:46,800 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-01-07 05:17:46,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:46,802 INFO L225 Difference]: With dead ends: 286 [2021-01-07 05:17:46,803 INFO L226 Difference]: Without dead ends: 286 [2021-01-07 05:17:46,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:17:46,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-01-07 05:17:46,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 162. [2021-01-07 05:17:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2021-01-07 05:17:46,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 196 transitions. [2021-01-07 05:17:46,809 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 196 transitions. Word has length 17 [2021-01-07 05:17:46,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:46,810 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 196 transitions. [2021-01-07 05:17:46,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:17:46,810 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 196 transitions. [2021-01-07 05:17:46,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-07 05:17:46,811 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:46,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:46,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-07 05:17:46,811 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:46,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:46,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1859882865, now seen corresponding path program 1 times [2021-01-07 05:17:46,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:46,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742858017] [2021-01-07 05:17:46,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:46,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742858017] [2021-01-07 05:17:46,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:46,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 05:17:46,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682583198] [2021-01-07 05:17:46,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:17:46,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:46,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:17:46,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:17:46,853 INFO L87 Difference]: Start difference. First operand 162 states and 196 transitions. Second operand 5 states. [2021-01-07 05:17:47,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:47,146 INFO L93 Difference]: Finished difference Result 238 states and 288 transitions. [2021-01-07 05:17:47,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:17:47,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-01-07 05:17:47,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:47,148 INFO L225 Difference]: With dead ends: 238 [2021-01-07 05:17:47,148 INFO L226 Difference]: Without dead ends: 238 [2021-01-07 05:17:47,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:17:47,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-01-07 05:17:47,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 161. [2021-01-07 05:17:47,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2021-01-07 05:17:47,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2021-01-07 05:17:47,155 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 17 [2021-01-07 05:17:47,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:47,156 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2021-01-07 05:17:47,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:17:47,156 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2021-01-07 05:17:47,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-07 05:17:47,156 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:47,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:47,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-07 05:17:47,157 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:47,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:47,158 INFO L82 PathProgramCache]: Analyzing trace with hash 192361824, now seen corresponding path program 1 times [2021-01-07 05:17:47,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:47,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301931086] [2021-01-07 05:17:47,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:47,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301931086] [2021-01-07 05:17:47,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:47,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-07 05:17:47,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355804800] [2021-01-07 05:17:47,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-07 05:17:47,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:47,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-07 05:17:47,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-07 05:17:47,356 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand 10 states. [2021-01-07 05:17:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:48,441 INFO L93 Difference]: Finished difference Result 229 states and 263 transitions. [2021-01-07 05:17:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-07 05:17:48,441 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2021-01-07 05:17:48,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:48,444 INFO L225 Difference]: With dead ends: 229 [2021-01-07 05:17:48,444 INFO L226 Difference]: Without dead ends: 229 [2021-01-07 05:17:48,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2021-01-07 05:17:48,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-01-07 05:17:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 181. [2021-01-07 05:17:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2021-01-07 05:17:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 218 transitions. [2021-01-07 05:17:48,472 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 218 transitions. Word has length 18 [2021-01-07 05:17:48,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:48,472 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 218 transitions. [2021-01-07 05:17:48,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-07 05:17:48,473 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 218 transitions. [2021-01-07 05:17:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-07 05:17:48,473 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:48,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:48,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-07 05:17:48,474 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:48,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:48,475 INFO L82 PathProgramCache]: Analyzing trace with hash 192361823, now seen corresponding path program 1 times [2021-01-07 05:17:48,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:48,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004487866] [2021-01-07 05:17:48,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:48,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:48,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004487866] [2021-01-07 05:17:48,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:48,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-07 05:17:48,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058484882] [2021-01-07 05:17:48,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-07 05:17:48,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:48,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-07 05:17:48,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-01-07 05:17:48,721 INFO L87 Difference]: Start difference. First operand 181 states and 218 transitions. Second operand 11 states. [2021-01-07 05:17:49,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:49,512 INFO L93 Difference]: Finished difference Result 190 states and 224 transitions. [2021-01-07 05:17:49,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-07 05:17:49,513 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2021-01-07 05:17:49,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:49,514 INFO L225 Difference]: With dead ends: 190 [2021-01-07 05:17:49,514 INFO L226 Difference]: Without dead ends: 190 [2021-01-07 05:17:49,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-01-07 05:17:49,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-01-07 05:17:49,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 181. [2021-01-07 05:17:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2021-01-07 05:17:49,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 217 transitions. [2021-01-07 05:17:49,520 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 217 transitions. Word has length 18 [2021-01-07 05:17:49,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:49,521 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 217 transitions. [2021-01-07 05:17:49,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-01-07 05:17:49,521 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 217 transitions. [2021-01-07 05:17:49,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-07 05:17:49,522 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:49,522 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] [2021-01-07 05:17:49,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-07 05:17:49,522 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:49,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:49,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1602603803, now seen corresponding path program 1 times [2021-01-07 05:17:49,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:49,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132132056] [2021-01-07 05:17:49,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:49,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132132056] [2021-01-07 05:17:49,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:49,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-07 05:17:49,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820417632] [2021-01-07 05:17:49,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-07 05:17:49,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:49,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-07 05:17:49,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:17:49,613 INFO L87 Difference]: Start difference. First operand 181 states and 217 transitions. Second operand 8 states. [2021-01-07 05:17:50,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:50,171 INFO L93 Difference]: Finished difference Result 214 states and 257 transitions. [2021-01-07 05:17:50,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 05:17:50,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2021-01-07 05:17:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:50,173 INFO L225 Difference]: With dead ends: 214 [2021-01-07 05:17:50,173 INFO L226 Difference]: Without dead ends: 214 [2021-01-07 05:17:50,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-01-07 05:17:50,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-01-07 05:17:50,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 180. [2021-01-07 05:17:50,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2021-01-07 05:17:50,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 215 transitions. [2021-01-07 05:17:50,180 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 215 transitions. Word has length 20 [2021-01-07 05:17:50,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:50,180 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 215 transitions. [2021-01-07 05:17:50,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-07 05:17:50,180 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 215 transitions. [2021-01-07 05:17:50,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-07 05:17:50,181 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:50,181 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] [2021-01-07 05:17:50,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-07 05:17:50,182 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:50,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:50,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1602603802, now seen corresponding path program 1 times [2021-01-07 05:17:50,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:50,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14906025] [2021-01-07 05:17:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:50,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:50,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14906025] [2021-01-07 05:17:50,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:50,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-07 05:17:50,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564602578] [2021-01-07 05:17:50,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-07 05:17:50,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:50,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-07 05:17:50,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:17:50,290 INFO L87 Difference]: Start difference. First operand 180 states and 215 transitions. Second operand 8 states. [2021-01-07 05:17:50,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:50,879 INFO L93 Difference]: Finished difference Result 213 states and 255 transitions. [2021-01-07 05:17:50,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 05:17:50,880 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2021-01-07 05:17:50,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:50,882 INFO L225 Difference]: With dead ends: 213 [2021-01-07 05:17:50,882 INFO L226 Difference]: Without dead ends: 213 [2021-01-07 05:17:50,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-01-07 05:17:50,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-01-07 05:17:50,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 179. [2021-01-07 05:17:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2021-01-07 05:17:50,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 213 transitions. [2021-01-07 05:17:50,892 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 213 transitions. Word has length 20 [2021-01-07 05:17:50,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:50,892 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 213 transitions. [2021-01-07 05:17:50,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-07 05:17:50,893 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 213 transitions. [2021-01-07 05:17:50,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-07 05:17:50,893 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:50,894 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] [2021-01-07 05:17:50,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-07 05:17:50,894 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:50,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:50,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1774513622, now seen corresponding path program 1 times [2021-01-07 05:17:50,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:50,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024908266] [2021-01-07 05:17:50,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:50,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:50,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024908266] [2021-01-07 05:17:50,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:50,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 05:17:50,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58189452] [2021-01-07 05:17:50,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:17:50,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:50,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:17:50,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:17:50,981 INFO L87 Difference]: Start difference. First operand 179 states and 213 transitions. Second operand 5 states. [2021-01-07 05:17:51,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:51,303 INFO L93 Difference]: Finished difference Result 253 states and 301 transitions. [2021-01-07 05:17:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:17:51,304 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2021-01-07 05:17:51,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:51,307 INFO L225 Difference]: With dead ends: 253 [2021-01-07 05:17:51,308 INFO L226 Difference]: Without dead ends: 253 [2021-01-07 05:17:51,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:17:51,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-01-07 05:17:51,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 178. [2021-01-07 05:17:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2021-01-07 05:17:51,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 211 transitions. [2021-01-07 05:17:51,315 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 211 transitions. Word has length 21 [2021-01-07 05:17:51,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:51,315 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 211 transitions. [2021-01-07 05:17:51,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:17:51,315 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 211 transitions. [2021-01-07 05:17:51,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-07 05:17:51,316 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:51,316 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] [2021-01-07 05:17:51,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-07 05:17:51,317 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:51,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:51,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1774513623, now seen corresponding path program 1 times [2021-01-07 05:17:51,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:51,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945352826] [2021-01-07 05:17:51,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:51,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945352826] [2021-01-07 05:17:51,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:51,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 05:17:51,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314376042] [2021-01-07 05:17:51,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:17:51,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:51,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:17:51,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:17:51,379 INFO L87 Difference]: Start difference. First operand 178 states and 211 transitions. Second operand 5 states. [2021-01-07 05:17:51,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:51,756 INFO L93 Difference]: Finished difference Result 319 states and 378 transitions. [2021-01-07 05:17:51,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:17:51,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2021-01-07 05:17:51,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:51,759 INFO L225 Difference]: With dead ends: 319 [2021-01-07 05:17:51,759 INFO L226 Difference]: Without dead ends: 319 [2021-01-07 05:17:51,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:17:51,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-01-07 05:17:51,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 177. [2021-01-07 05:17:51,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2021-01-07 05:17:51,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 209 transitions. [2021-01-07 05:17:51,766 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 209 transitions. Word has length 21 [2021-01-07 05:17:51,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:51,766 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 209 transitions. [2021-01-07 05:17:51,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:17:51,767 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 209 transitions. [2021-01-07 05:17:51,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-07 05:17:51,767 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:51,767 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] [2021-01-07 05:17:51,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-07 05:17:51,768 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:51,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:51,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1575031517, now seen corresponding path program 1 times [2021-01-07 05:17:51,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:51,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059450348] [2021-01-07 05:17:51,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:51,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:51,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059450348] [2021-01-07 05:17:51,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:51,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-07 05:17:51,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859344409] [2021-01-07 05:17:51,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-07 05:17:51,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:51,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-07 05:17:51,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-07 05:17:51,936 INFO L87 Difference]: Start difference. First operand 177 states and 209 transitions. Second operand 10 states. [2021-01-07 05:17:52,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:52,746 INFO L93 Difference]: Finished difference Result 210 states and 244 transitions. [2021-01-07 05:17:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-07 05:17:52,746 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2021-01-07 05:17:52,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:52,748 INFO L225 Difference]: With dead ends: 210 [2021-01-07 05:17:52,748 INFO L226 Difference]: Without dead ends: 210 [2021-01-07 05:17:52,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2021-01-07 05:17:52,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-01-07 05:17:52,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 179. [2021-01-07 05:17:52,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2021-01-07 05:17:52,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 211 transitions. [2021-01-07 05:17:52,754 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 211 transitions. Word has length 23 [2021-01-07 05:17:52,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:52,755 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 211 transitions. [2021-01-07 05:17:52,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-07 05:17:52,755 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 211 transitions. [2021-01-07 05:17:52,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-01-07 05:17:52,756 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:52,756 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] [2021-01-07 05:17:52,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-07 05:17:52,756 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:52,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:52,757 INFO L82 PathProgramCache]: Analyzing trace with hash 2077917281, now seen corresponding path program 1 times [2021-01-07 05:17:52,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:52,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014197924] [2021-01-07 05:17:52,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:52,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014197924] [2021-01-07 05:17:52,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:52,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-07 05:17:52,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966300968] [2021-01-07 05:17:52,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-07 05:17:52,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:52,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-07 05:17:52,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:17:52,851 INFO L87 Difference]: Start difference. First operand 179 states and 211 transitions. Second operand 8 states. [2021-01-07 05:17:53,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:53,297 INFO L93 Difference]: Finished difference Result 184 states and 218 transitions. [2021-01-07 05:17:53,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 05:17:53,300 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2021-01-07 05:17:53,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:53,301 INFO L225 Difference]: With dead ends: 184 [2021-01-07 05:17:53,301 INFO L226 Difference]: Without dead ends: 184 [2021-01-07 05:17:53,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-01-07 05:17:53,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-01-07 05:17:53,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 178. [2021-01-07 05:17:53,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2021-01-07 05:17:53,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 210 transitions. [2021-01-07 05:17:53,307 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 210 transitions. Word has length 24 [2021-01-07 05:17:53,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:53,307 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 210 transitions. [2021-01-07 05:17:53,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-07 05:17:53,307 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 210 transitions. [2021-01-07 05:17:53,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-01-07 05:17:53,308 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:53,308 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] [2021-01-07 05:17:53,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-07 05:17:53,309 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:53,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:53,309 INFO L82 PathProgramCache]: Analyzing trace with hash 2077917282, now seen corresponding path program 1 times [2021-01-07 05:17:53,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:53,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733842172] [2021-01-07 05:17:53,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:53,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:53,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733842172] [2021-01-07 05:17:53,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:53,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-07 05:17:53,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375174544] [2021-01-07 05:17:53,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-07 05:17:53,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:53,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-07 05:17:53,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:17:53,443 INFO L87 Difference]: Start difference. First operand 178 states and 210 transitions. Second operand 8 states. [2021-01-07 05:17:53,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:53,972 INFO L93 Difference]: Finished difference Result 183 states and 217 transitions. [2021-01-07 05:17:53,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 05:17:53,972 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2021-01-07 05:17:53,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:53,973 INFO L225 Difference]: With dead ends: 183 [2021-01-07 05:17:53,974 INFO L226 Difference]: Without dead ends: 183 [2021-01-07 05:17:53,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-01-07 05:17:53,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-01-07 05:17:53,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2021-01-07 05:17:53,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2021-01-07 05:17:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 209 transitions. [2021-01-07 05:17:53,980 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 209 transitions. Word has length 24 [2021-01-07 05:17:53,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:53,980 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 209 transitions. [2021-01-07 05:17:53,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-07 05:17:53,980 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 209 transitions. [2021-01-07 05:17:53,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-07 05:17:53,981 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:53,981 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:53,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-07 05:17:53,982 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:53,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:53,982 INFO L82 PathProgramCache]: Analyzing trace with hash 754013383, now seen corresponding path program 1 times [2021-01-07 05:17:53,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:53,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381800944] [2021-01-07 05:17:53,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:54,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:54,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381800944] [2021-01-07 05:17:54,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272310029] [2021-01-07 05:17:54,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:17:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:54,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-07 05:17:54,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:17:54,227 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-01-07 05:17:54,228 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,235 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:54,240 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-01-07 05:17:54,241 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,247 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:54,248 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,249 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2021-01-07 05:17:54,307 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2021-01-07 05:17:54,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:17:54,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:17:54,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:17:54,335 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 16 treesize of output 20 [2021-01-07 05:17:54,338 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,343 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:54,345 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,359 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:54,369 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2021-01-07 05:17:54,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:17:54,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:17:54,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:17:54,402 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 16 treesize of output 20 [2021-01-07 05:17:54,409 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,419 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:54,421 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,438 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:54,444 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,445 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:51, output treesize:15 [2021-01-07 05:17:54,538 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-01-07 05:17:54,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:17:54,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:17:54,557 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-01-07 05:17:54,560 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,564 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:54,565 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,574 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:54,583 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-01-07 05:17:54,595 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-01-07 05:17:54,605 INFO L547 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,610 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:54,611 INFO L547 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,620 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:54,621 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:17:54,621 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:39, output treesize:7 [2021-01-07 05:17:54,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:54,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:17:54,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-01-07 05:17:54,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822878608] [2021-01-07 05:17:54,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:17:54,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:54,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:17:54,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:17:54,648 INFO L87 Difference]: Start difference. First operand 177 states and 209 transitions. Second operand 5 states. [2021-01-07 05:17:54,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:54,791 INFO L93 Difference]: Finished difference Result 183 states and 215 transitions. [2021-01-07 05:17:54,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:17:54,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-01-07 05:17:54,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:54,793 INFO L225 Difference]: With dead ends: 183 [2021-01-07 05:17:54,793 INFO L226 Difference]: Without dead ends: 183 [2021-01-07 05:17:54,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-07 05:17:54,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-01-07 05:17:54,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 179. [2021-01-07 05:17:54,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2021-01-07 05:17:54,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 211 transitions. [2021-01-07 05:17:54,804 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 211 transitions. Word has length 26 [2021-01-07 05:17:54,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:54,804 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 211 transitions. [2021-01-07 05:17:54,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:17:54,804 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 211 transitions. [2021-01-07 05:17:54,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-01-07 05:17:54,807 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:54,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:55,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-01-07 05:17:55,023 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:55,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:55,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1899578538, now seen corresponding path program 1 times [2021-01-07 05:17:55,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:55,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18293976] [2021-01-07 05:17:55,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:55,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:55,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18293976] [2021-01-07 05:17:55,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833208460] [2021-01-07 05:17:55,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:17:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:55,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 28 conjunts are in the unsatisfiable core [2021-01-07 05:17:55,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:17:55,688 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-01-07 05:17:55,689 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:17:55,702 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:55,708 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:17:55,708 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:47 [2021-01-07 05:17:55,855 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:55,855 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 38 [2021-01-07 05:17:55,859 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:17:55,864 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:17:55,865 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:17:55,880 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:17:55,884 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:17:55,887 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:17:55,890 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-07 05:17:55,891 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:17:55,892 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:56, output treesize:33 [2021-01-07 05:17:55,893 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-07 05:17:55,952 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-07 05:17:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:56,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:17:56,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2021-01-07 05:17:56,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918312235] [2021-01-07 05:17:56,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-01-07 05:17:56,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:56,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-01-07 05:17:56,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2021-01-07 05:17:56,326 INFO L87 Difference]: Start difference. First operand 179 states and 211 transitions. Second operand 23 states. [2021-01-07 05:17:58,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:58,692 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2021-01-07 05:17:58,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-07 05:17:58,693 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 27 [2021-01-07 05:17:58,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:58,694 INFO L225 Difference]: With dead ends: 220 [2021-01-07 05:17:58,694 INFO L226 Difference]: Without dead ends: 214 [2021-01-07 05:17:58,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=136, Invalid=986, Unknown=0, NotChecked=0, Total=1122 [2021-01-07 05:17:58,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-01-07 05:17:58,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 194. [2021-01-07 05:17:58,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-01-07 05:17:58,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 227 transitions. [2021-01-07 05:17:58,702 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 227 transitions. Word has length 27 [2021-01-07 05:17:58,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:58,702 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 227 transitions. [2021-01-07 05:17:58,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-01-07 05:17:58,703 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 227 transitions. [2021-01-07 05:17:58,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-01-07 05:17:58,703 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:58,704 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:58,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-01-07 05:17:58,916 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:58,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:58,917 INFO L82 PathProgramCache]: Analyzing trace with hash 2080468237, now seen corresponding path program 1 times [2021-01-07 05:17:58,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:58,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925764967] [2021-01-07 05:17:58,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:59,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:59,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925764967] [2021-01-07 05:17:59,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:17:59,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-07 05:17:59,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440137061] [2021-01-07 05:17:59,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 05:17:59,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:59,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 05:17:59,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:17:59,009 INFO L87 Difference]: Start difference. First operand 194 states and 227 transitions. Second operand 7 states. [2021-01-07 05:17:59,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:59,338 INFO L93 Difference]: Finished difference Result 212 states and 240 transitions. [2021-01-07 05:17:59,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-07 05:17:59,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2021-01-07 05:17:59,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:59,340 INFO L225 Difference]: With dead ends: 212 [2021-01-07 05:17:59,340 INFO L226 Difference]: Without dead ends: 212 [2021-01-07 05:17:59,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-01-07 05:17:59,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-01-07 05:17:59,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 194. [2021-01-07 05:17:59,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-01-07 05:17:59,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 225 transitions. [2021-01-07 05:17:59,346 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 225 transitions. Word has length 30 [2021-01-07 05:17:59,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:59,346 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 225 transitions. [2021-01-07 05:17:59,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 05:17:59,346 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 225 transitions. [2021-01-07 05:17:59,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-01-07 05:17:59,347 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:59,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:59,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-07 05:17:59,347 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:59,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:59,348 INFO L82 PathProgramCache]: Analyzing trace with hash 70006052, now seen corresponding path program 1 times [2021-01-07 05:17:59,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:59,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017873622] [2021-01-07 05:17:59,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:59,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:59,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017873622] [2021-01-07 05:17:59,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176152952] [2021-01-07 05:17:59,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:17:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:17:59,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-07 05:17:59,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:17:59,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:17:59,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-07 05:17:59,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2021-01-07 05:17:59,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139507820] [2021-01-07 05:17:59,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:17:59,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:17:59,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:17:59,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-01-07 05:17:59,575 INFO L87 Difference]: Start difference. First operand 194 states and 225 transitions. Second operand 4 states. [2021-01-07 05:17:59,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:17:59,643 INFO L93 Difference]: Finished difference Result 223 states and 252 transitions. [2021-01-07 05:17:59,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:17:59,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-01-07 05:17:59,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:17:59,645 INFO L225 Difference]: With dead ends: 223 [2021-01-07 05:17:59,645 INFO L226 Difference]: Without dead ends: 223 [2021-01-07 05:17:59,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:17:59,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-01-07 05:17:59,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 194. [2021-01-07 05:17:59,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-01-07 05:17:59,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 224 transitions. [2021-01-07 05:17:59,651 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 224 transitions. Word has length 31 [2021-01-07 05:17:59,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:17:59,651 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 224 transitions. [2021-01-07 05:17:59,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:17:59,652 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 224 transitions. [2021-01-07 05:17:59,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-07 05:17:59,652 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:17:59,652 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:17:59,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-01-07 05:17:59,866 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:17:59,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:17:59,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1424036623, now seen corresponding path program 1 times [2021-01-07 05:17:59,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:17:59,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405370866] [2021-01-07 05:17:59,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:17:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:18:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:18:00,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405370866] [2021-01-07 05:18:00,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:18:00,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-01-07 05:18:00,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907098270] [2021-01-07 05:18:00,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-07 05:18:00,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:18:00,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-07 05:18:00,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-01-07 05:18:00,154 INFO L87 Difference]: Start difference. First operand 194 states and 224 transitions. Second operand 12 states. [2021-01-07 05:18:01,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:18:01,215 INFO L93 Difference]: Finished difference Result 209 states and 240 transitions. [2021-01-07 05:18:01,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-07 05:18:01,216 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2021-01-07 05:18:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:18:01,217 INFO L225 Difference]: With dead ends: 209 [2021-01-07 05:18:01,217 INFO L226 Difference]: Without dead ends: 209 [2021-01-07 05:18:01,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2021-01-07 05:18:01,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-01-07 05:18:01,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 194. [2021-01-07 05:18:01,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-01-07 05:18:01,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 223 transitions. [2021-01-07 05:18:01,229 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 223 transitions. Word has length 37 [2021-01-07 05:18:01,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:18:01,229 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 223 transitions. [2021-01-07 05:18:01,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-07 05:18:01,229 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 223 transitions. [2021-01-07 05:18:01,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-07 05:18:01,230 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:18:01,230 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:18:01,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-01-07 05:18:01,231 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:18:01,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:18:01,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1814443471, now seen corresponding path program 1 times [2021-01-07 05:18:01,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:18:01,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28949285] [2021-01-07 05:18:01,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:18:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:18:01,625 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:18:01,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28949285] [2021-01-07 05:18:01,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:18:01,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-07 05:18:01,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001970629] [2021-01-07 05:18:01,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-07 05:18:01,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:18:01,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-07 05:18:01,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-01-07 05:18:01,628 INFO L87 Difference]: Start difference. First operand 194 states and 223 transitions. Second operand 15 states. [2021-01-07 05:18:02,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:18:02,934 INFO L93 Difference]: Finished difference Result 218 states and 250 transitions. [2021-01-07 05:18:02,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-07 05:18:02,935 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 37 [2021-01-07 05:18:02,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:18:02,936 INFO L225 Difference]: With dead ends: 218 [2021-01-07 05:18:02,936 INFO L226 Difference]: Without dead ends: 197 [2021-01-07 05:18:02,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=144, Invalid=612, Unknown=0, NotChecked=0, Total=756 [2021-01-07 05:18:02,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-01-07 05:18:02,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 179. [2021-01-07 05:18:02,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2021-01-07 05:18:02,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 207 transitions. [2021-01-07 05:18:02,942 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 207 transitions. Word has length 37 [2021-01-07 05:18:02,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:18:02,942 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 207 transitions. [2021-01-07 05:18:02,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-07 05:18:02,942 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 207 transitions. [2021-01-07 05:18:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-07 05:18:02,943 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:18:02,943 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:18:02,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-01-07 05:18:02,943 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:18:02,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:18:02,944 INFO L82 PathProgramCache]: Analyzing trace with hash 428218372, now seen corresponding path program 1 times [2021-01-07 05:18:02,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:18:02,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883061271] [2021-01-07 05:18:02,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:18:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:18:03,089 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:18:03,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883061271] [2021-01-07 05:18:03,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092525308] [2021-01-07 05:18:03,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:18:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:18:03,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 24 conjunts are in the unsatisfiable core [2021-01-07 05:18:03,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:18:03,427 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-01-07 05:18:03,429 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:18:03,438 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:18:03,441 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-01-07 05:18:03,443 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:18:03,452 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:18:03,452 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:18:03,453 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2021-01-07 05:18:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:18:03,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:18:03,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2021-01-07 05:18:03,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930796569] [2021-01-07 05:18:03,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-07 05:18:03,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:18:03,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-07 05:18:03,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-01-07 05:18:03,493 INFO L87 Difference]: Start difference. First operand 179 states and 207 transitions. Second operand 18 states. [2021-01-07 05:18:04,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:18:04,495 INFO L93 Difference]: Finished difference Result 218 states and 252 transitions. [2021-01-07 05:18:04,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-07 05:18:04,496 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 37 [2021-01-07 05:18:04,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:18:04,497 INFO L225 Difference]: With dead ends: 218 [2021-01-07 05:18:04,497 INFO L226 Difference]: Without dead ends: 218 [2021-01-07 05:18:04,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2021-01-07 05:18:04,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-01-07 05:18:04,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 202. [2021-01-07 05:18:04,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2021-01-07 05:18:04,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 234 transitions. [2021-01-07 05:18:04,504 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 234 transitions. Word has length 37 [2021-01-07 05:18:04,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:18:04,504 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 234 transitions. [2021-01-07 05:18:04,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-01-07 05:18:04,504 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 234 transitions. [2021-01-07 05:18:04,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-07 05:18:04,505 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:18:04,505 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:18:04,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:18:04,717 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:18:04,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:18:04,718 INFO L82 PathProgramCache]: Analyzing trace with hash 2048642445, now seen corresponding path program 1 times [2021-01-07 05:18:04,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:18:04,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825606655] [2021-01-07 05:18:04,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:18:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:18:04,971 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:18:04,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825606655] [2021-01-07 05:18:04,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554123487] [2021-01-07 05:18:04,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:18:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:18:05,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 30 conjunts are in the unsatisfiable core [2021-01-07 05:18:05,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:18:05,087 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-01-07 05:18:05,088 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:18:05,093 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:18:05,094 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:18:05,094 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2021-01-07 05:18:05,205 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:18:05,205 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2021-01-07 05:18:05,208 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:18:05,214 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:18:05,225 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:18:05,226 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:18:05,227 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2021-01-07 05:18:05,270 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-01-07 05:18:05,270 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:18:05,285 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:18:05,287 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:18:05,287 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2021-01-07 05:18:05,414 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:18:05,414 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 59 [2021-01-07 05:18:05,420 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2021-01-07 05:18:05,420 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:18:05,423 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-01-07 05:18:05,465 INFO L625 ElimStorePlain]: treesize reduction 59, result has 45.4 percent of original size [2021-01-07 05:18:05,467 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:18:05,467 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:59, output treesize:49 [2021-01-07 05:18:05,637 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:18:05,638 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 109 [2021-01-07 05:18:05,641 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2021-01-07 05:18:05,642 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:18:05,643 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:18:05,678 INFO L625 ElimStorePlain]: treesize reduction 26, result has 69.0 percent of original size [2021-01-07 05:18:05,680 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-07 05:18:05,680 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:58 [2021-01-07 05:18:08,685 WARN L197 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 24 [2021-01-07 05:18:09,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-01-07 05:18:09,413 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:18:09,414 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 35 [2021-01-07 05:18:09,416 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:18:09,427 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:18:09,431 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:18:09,431 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:60, output treesize:15 [2021-01-07 05:18:09,527 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:18:09,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:18:09,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2021-01-07 05:18:09,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165802003] [2021-01-07 05:18:09,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-07 05:18:09,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:18:09,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-07 05:18:09,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=553, Unknown=3, NotChecked=0, Total=650 [2021-01-07 05:18:09,530 INFO L87 Difference]: Start difference. First operand 202 states and 234 transitions. Second operand 26 states. [2021-01-07 05:18:34,414 WARN L197 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2021-01-07 05:18:51,357 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 46 [2021-01-07 05:18:57,559 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2021-01-07 05:19:08,446 WARN L197 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2021-01-07 05:19:18,830 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2021-01-07 05:19:45,012 WARN L197 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2021-01-07 05:19:45,321 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 44 [2021-01-07 05:19:45,509 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 43 [2021-01-07 05:19:46,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:19:46,620 INFO L93 Difference]: Finished difference Result 625 states and 768 transitions. [2021-01-07 05:19:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-01-07 05:19:46,621 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 37 [2021-01-07 05:19:46,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:19:46,624 INFO L225 Difference]: With dead ends: 625 [2021-01-07 05:19:46,625 INFO L226 Difference]: Without dead ends: 625 [2021-01-07 05:19:46,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1585 ImplicationChecksByTransitivity, 80.5s TimeCoverageRelationStatistics Valid=1167, Invalid=4794, Unknown=45, NotChecked=0, Total=6006 [2021-01-07 05:19:46,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-01-07 05:19:46,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 279. [2021-01-07 05:19:46,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2021-01-07 05:19:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 343 transitions. [2021-01-07 05:19:46,636 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 343 transitions. Word has length 37 [2021-01-07 05:19:46,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:19:46,637 INFO L481 AbstractCegarLoop]: Abstraction has 279 states and 343 transitions. [2021-01-07 05:19:46,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2021-01-07 05:19:46,637 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 343 transitions. [2021-01-07 05:19:46,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-07 05:19:46,637 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:19:46,638 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:19:46,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-01-07 05:19:46,852 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:19:46,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:19:46,853 INFO L82 PathProgramCache]: Analyzing trace with hash -100911800, now seen corresponding path program 1 times [2021-01-07 05:19:46,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:19:46,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120228992] [2021-01-07 05:19:46,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:19:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:19:47,158 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:19:47,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120228992] [2021-01-07 05:19:47,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457651704] [2021-01-07 05:19:47,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:19:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:19:47,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 48 conjunts are in the unsatisfiable core [2021-01-07 05:19:47,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:19:47,271 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-01-07 05:19:47,272 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,274 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,275 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,275 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-01-07 05:19:47,333 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,333 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2021-01-07 05:19:47,336 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:19:47,338 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,348 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,349 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,349 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2021-01-07 05:19:47,389 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-01-07 05:19:47,389 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,401 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,403 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,403 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2021-01-07 05:19:47,441 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-01-07 05:19:47,443 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:19:47,454 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,455 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:19:47,456 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:21 [2021-01-07 05:19:47,531 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_76|], 3=[|v_#valid_93|]} [2021-01-07 05:19:47,536 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-01-07 05:19:47,536 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,554 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,573 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,574 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2021-01-07 05:19:47,576 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:19:47,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:19:47,579 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,593 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,595 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,595 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:19 [2021-01-07 05:19:47,605 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-01-07 05:19:47,605 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,618 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,623 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-01-07 05:19:47,624 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,640 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,642 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,642 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:42, output treesize:37 [2021-01-07 05:19:47,667 INFO L443 ElimStorePlain]: Different costs {3=[|v_#memory_$Pointer$.offset_48|], 7=[|v_#memory_$Pointer$.base_53|]} [2021-01-07 05:19:47,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:19:47,675 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2021-01-07 05:19:47,676 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,697 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,725 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,726 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 93 [2021-01-07 05:19:47,730 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2021-01-07 05:19:47,730 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:19:47,731 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:47,749 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,750 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:19:47,750 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:123, output treesize:63 [2021-01-07 05:19:47,939 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:47,939 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 136 [2021-01-07 05:19:47,942 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2021-01-07 05:19:47,943 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-07 05:19:47,945 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:48,021 INFO L625 ElimStorePlain]: treesize reduction 26, result has 82.1 percent of original size [2021-01-07 05:19:48,044 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:48,045 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 73 [2021-01-07 05:19:48,047 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:48,119 INFO L625 ElimStorePlain]: treesize reduction 26, result has 80.7 percent of original size [2021-01-07 05:19:48,122 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-07 05:19:48,122 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:129, output treesize:109 [2021-01-07 05:19:48,355 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:48,356 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 51 [2021-01-07 05:19:48,358 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:48,375 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:48,379 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 13 [2021-01-07 05:19:48,381 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:48,392 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:48,395 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:19:48,395 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:101, output treesize:16 [2021-01-07 05:19:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:19:48,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:19:48,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 19 [2021-01-07 05:19:48,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852272085] [2021-01-07 05:19:48,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-07 05:19:48,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:19:48,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-07 05:19:48,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2021-01-07 05:19:48,435 INFO L87 Difference]: Start difference. First operand 279 states and 343 transitions. Second operand 20 states. [2021-01-07 05:19:49,449 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-01-07 05:19:50,303 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-01-07 05:19:50,489 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-01-07 05:19:50,947 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2021-01-07 05:19:51,295 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2021-01-07 05:19:52,974 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2021-01-07 05:19:52,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:19:52,980 INFO L93 Difference]: Finished difference Result 699 states and 870 transitions. [2021-01-07 05:19:52,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-07 05:19:52,981 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 44 [2021-01-07 05:19:52,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:19:52,984 INFO L225 Difference]: With dead ends: 699 [2021-01-07 05:19:52,984 INFO L226 Difference]: Without dead ends: 699 [2021-01-07 05:19:52,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=510, Invalid=1746, Unknown=0, NotChecked=0, Total=2256 [2021-01-07 05:19:52,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-01-07 05:19:52,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 311. [2021-01-07 05:19:52,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2021-01-07 05:19:52,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 383 transitions. [2021-01-07 05:19:52,995 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 383 transitions. Word has length 44 [2021-01-07 05:19:52,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:19:52,995 INFO L481 AbstractCegarLoop]: Abstraction has 311 states and 383 transitions. [2021-01-07 05:19:52,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-07 05:19:52,995 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 383 transitions. [2021-01-07 05:19:52,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-07 05:19:52,996 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:19:52,996 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:19:53,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:19:53,212 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr51REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr60REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:19:53,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:19:53,213 INFO L82 PathProgramCache]: Analyzing trace with hash -101096499, now seen corresponding path program 1 times [2021-01-07 05:19:53,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:19:53,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380142777] [2021-01-07 05:19:53,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:19:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:19:53,632 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:19:53,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380142777] [2021-01-07 05:19:53,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574891067] [2021-01-07 05:19:53,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:19:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:19:53,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 38 conjunts are in the unsatisfiable core [2021-01-07 05:19:53,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:19:53,751 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-01-07 05:19:53,752 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:53,753 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:53,754 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:19:53,754 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-01-07 05:19:53,819 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:53,819 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2021-01-07 05:19:53,821 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:19:53,824 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:53,835 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:53,835 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:19:53,836 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2021-01-07 05:19:53,884 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-01-07 05:19:53,885 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:53,901 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:53,902 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:19:53,903 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2021-01-07 05:19:53,950 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:53,951 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 74 [2021-01-07 05:19:53,956 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2021-01-07 05:19:53,956 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:19:53,959 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:53,973 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:53,974 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:19:53,975 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:64, output treesize:40 [2021-01-07 05:19:54,153 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:54,154 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 99 [2021-01-07 05:19:54,157 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 3, 2, 1] term [2021-01-07 05:19:54,157 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-01-07 05:19:54,159 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:54,208 INFO L625 ElimStorePlain]: treesize reduction 24, result has 68.8 percent of original size [2021-01-07 05:19:54,210 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-07 05:19:54,210 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:61, output treesize:53 [2021-01-07 05:19:58,355 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:58,355 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 89 [2021-01-07 05:19:58,358 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-07 05:19:58,360 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-07 05:19:58,362 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:58,388 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:58,389 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:19:58,389 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:53, output treesize:59 [2021-01-07 05:19:58,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:19:58,507 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:58,507 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 93 [2021-01-07 05:19:58,511 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:19:58,539 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:58,541 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:19:58,541 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:72, output treesize:77 [2021-01-07 05:19:58,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-01-07 05:19:58,798 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:58,799 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 89 treesize of output 178 [2021-01-07 05:19:58,804 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[11, 3, 2, 1] term [2021-01-07 05:19:58,805 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-01-07 05:19:58,806 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:19:58,807 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:19:58,808 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:19:58,809 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:19:58,809 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:19:58,812 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:19:58,813 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:19:58,814 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:19:58,815 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:19:58,817 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:19:58,819 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:19:58,820 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:19:58,821 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:19:58,821 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-07 05:19:58,823 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:19:58,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:19:58,825 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:19:58,826 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-07 05:19:58,829 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:19:58,857 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:19:58,859 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-07 05:19:58,859 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:100, output treesize:90 [2021-01-07 05:19:59,363 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-01-07 05:19:59,364 INFO L348 Elim1Store]: treesize reduction 10, result has 95.6 percent of original size [2021-01-07 05:19:59,364 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 104 treesize of output 262 [2021-01-07 05:19:59,376 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[15, 3, 2, 1] term [2021-01-07 05:19:59,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 15 disjuncts [2021-01-07 05:19:59,379 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:19:59,380 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:19:59,381 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:19:59,382 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:19:59,383 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:19:59,384 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:19:59,386 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:19:59,387 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:19:59,388 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:19:59,389 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-07 05:19:59,390 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:19:59,393 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:19:59,394 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2021-01-07 05:19:59,395 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:19:59,396 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-01-07 05:19:59,397 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:19:59,398 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-01-07 05:19:59,401 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-01-07 05:19:59,402 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-01-07 05:19:59,403 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-01-07 05:19:59,404 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-07 05:19:59,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-01-07 05:19:59,409 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:19:59,461 INFO L625 ElimStorePlain]: treesize reduction 26, result has 79.2 percent of original size [2021-01-07 05:19:59,463 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-01-07 05:19:59,463 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:109, output treesize:99 [2021-01-07 05:20:05,580 WARN L197 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-01-07 05:20:07,816 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-07 05:20:07,817 INFO L348 Elim1Store]: treesize reduction 10, result has 88.5 percent of original size [2021-01-07 05:20:07,817 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 114 [2021-01-07 05:20:07,822 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2021-01-07 05:20:07,823 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-01-07 05:20:07,824 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2021-01-07 05:20:07,827 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-07 05:20:07,839 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:20:07,841 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-01-07 05:20:07,842 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:93, output treesize:28 [2021-01-07 05:20:10,019 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:20:10,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:20:10,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 30 [2021-01-07 05:20:10,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087227329] [2021-01-07 05:20:10,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-01-07 05:20:10,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:20:10,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-01-07 05:20:10,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=730, Unknown=6, NotChecked=0, Total=930 [2021-01-07 05:20:10,021 INFO L87 Difference]: Start difference. First operand 311 states and 383 transitions. Second operand 31 states. [2021-01-07 05:20:40,274 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2021-01-07 05:20:44,091 WARN L197 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2021-01-07 05:20:50,278 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2021-01-07 05:21:10,115 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2021-01-07 05:21:10,295 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2021-01-07 05:21:48,228 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2021-01-07 05:21:48,371 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 47