/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-MemCleanup-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/list-properties/splice-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 16:44:32,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 16:44:32,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 16:44:32,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 16:44:32,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 16:44:32,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 16:44:32,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 16:44:32,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 16:44:32,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 16:44:32,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 16:44:32,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 16:44:32,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 16:44:32,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 16:44:32,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 16:44:32,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 16:44:32,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 16:44:32,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 16:44:32,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 16:44:32,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 16:44:32,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 16:44:32,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 16:44:32,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 16:44:32,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 16:44:32,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 16:44:32,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 16:44:32,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 16:44:32,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 16:44:32,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 16:44:32,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 16:44:32,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 16:44:32,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 16:44:32,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 16:44:32,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 16:44:32,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 16:44:32,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 16:44:32,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 16:44:32,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 16:44:32,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 16:44:32,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 16:44:32,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 16:44:32,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 16:44:32,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-64bit-Automizer_Default.epf [2020-12-23 16:44:32,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 16:44:32,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 16:44:32,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 16:44:32,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 16:44:32,562 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 16:44:32,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 16:44:32,563 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-23 16:44:32,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 16:44:32,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 16:44:32,564 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-23 16:44:32,565 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-23 16:44:32,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 16:44:32,565 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-23 16:44:32,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 16:44:32,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 16:44:32,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 16:44:32,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 16:44:32,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:44:32,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 16:44:32,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 16:44:32,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 16:44:32,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 16:44:32,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 16:44:32,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 16:44:33,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 16:44:33,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 16:44:33,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 16:44:33,045 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 16:44:33,046 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 16:44:33,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/splice-1.i [2020-12-23 16:44:33,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1c32d177c/1954759fee184e24a8c26e24701a718a/FLAG0df364efd [2020-12-23 16:44:33,913 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 16:44:33,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-properties/splice-1.i [2020-12-23 16:44:33,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1c32d177c/1954759fee184e24a8c26e24701a718a/FLAG0df364efd [2020-12-23 16:44:34,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1c32d177c/1954759fee184e24a8c26e24701a718a [2020-12-23 16:44:34,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 16:44:34,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 16:44:34,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 16:44:34,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 16:44:34,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 16:44:34,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:44:34" (1/1) ... [2020-12-23 16:44:34,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed7c411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34, skipping insertion in model container [2020-12-23 16:44:34,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:44:34" (1/1) ... [2020-12-23 16:44:34,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 16:44:34,301 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~flag~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~flag~0,] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~p~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~flag~0,] left hand side expression in assignment: lhs: VariableLHS[~l1~0,] left hand side expression in assignment: lhs: VariableLHS[~l2~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~t~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~t~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~l1~0,] left hand side expression in assignment: lhs: VariableLHS[~flag~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~t~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~t~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~l2~0,] left hand side expression in assignment: lhs: VariableLHS[~flag~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] [2020-12-23 16:44:34,702 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-properties/splice-1.i[23721,23734] [2020-12-23 16:44:34,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:44:34,730 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~flag~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~flag~0,] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~p~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~flag~0,] left hand side expression in assignment: lhs: VariableLHS[~l1~0,] left hand side expression in assignment: lhs: VariableLHS[~l2~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~t~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~t~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~l1~0,] left hand side expression in assignment: lhs: VariableLHS[~flag~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~t~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~t~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~l2~0,] left hand side expression in assignment: lhs: VariableLHS[~flag~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] [2020-12-23 16:44:34,816 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-properties/splice-1.i[23721,23734] [2020-12-23 16:44:34,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:44:34,888 INFO L208 MainTranslator]: Completed translation [2020-12-23 16:44:34,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34 WrapperNode [2020-12-23 16:44:34,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 16:44:34,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 16:44:34,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 16:44:34,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 16:44:34,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34" (1/1) ... [2020-12-23 16:44:34,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34" (1/1) ... [2020-12-23 16:44:34,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 16:44:34,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 16:44:34,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 16:44:34,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 16:44:34,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34" (1/1) ... [2020-12-23 16:44:34,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34" (1/1) ... [2020-12-23 16:44:34,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34" (1/1) ... [2020-12-23 16:44:34,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34" (1/1) ... [2020-12-23 16:44:34,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34" (1/1) ... [2020-12-23 16:44:34,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34" (1/1) ... [2020-12-23 16:44:34,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34" (1/1) ... [2020-12-23 16:44:34,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 16:44:34,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 16:44:34,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 16:44:34,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 16:44:34,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:44:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 16:44:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 16:44:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 16:44:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 16:44:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 16:44:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 16:44:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 16:44:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 16:44:35,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 16:44:35,665 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 16:44:35,665 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-23 16:44:35,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:44:35 BoogieIcfgContainer [2020-12-23 16:44:35,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 16:44:35,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 16:44:35,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 16:44:35,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 16:44:35,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:44:34" (1/3) ... [2020-12-23 16:44:35,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69996c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:44:35, skipping insertion in model container [2020-12-23 16:44:35,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:44:34" (2/3) ... [2020-12-23 16:44:35,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69996c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:44:35, skipping insertion in model container [2020-12-23 16:44:35,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:44:35" (3/3) ... [2020-12-23 16:44:35,677 INFO L111 eAbstractionObserver]: Analyzing ICFG splice-1.i [2020-12-23 16:44:35,686 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 16:44:35,692 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2020-12-23 16:44:35,714 INFO L253 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2020-12-23 16:44:35,740 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 16:44:35,741 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-23 16:44:35,741 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 16:44:35,741 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 16:44:35,741 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 16:44:35,742 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 16:44:35,742 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 16:44:35,742 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 16:44:35,762 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-12-23 16:44:35,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 16:44:35,770 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:35,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 16:44:35,772 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:35,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:35,779 INFO L82 PathProgramCache]: Analyzing trace with hash 889600296, now seen corresponding path program 1 times [2020-12-23 16:44:35,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:35,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780861357] [2020-12-23 16:44:35,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:35,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:35,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780861357] [2020-12-23 16:44:35,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:35,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 16:44:35,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425583937] [2020-12-23 16:44:35,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 16:44:35,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:35,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 16:44:35,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 16:44:36,000 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-12-23 16:44:36,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:36,020 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2020-12-23 16:44:36,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 16:44:36,021 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-23 16:44:36,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:36,031 INFO L225 Difference]: With dead ends: 77 [2020-12-23 16:44:36,032 INFO L226 Difference]: Without dead ends: 73 [2020-12-23 16:44:36,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 16:44:36,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-12-23 16:44:36,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-12-23 16:44:36,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-23 16:44:36,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2020-12-23 16:44:36,082 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 6 [2020-12-23 16:44:36,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:36,082 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2020-12-23 16:44:36,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 16:44:36,083 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2020-12-23 16:44:36,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 16:44:36,083 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:36,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:36,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 16:44:36,084 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:36,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:36,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769742, now seen corresponding path program 1 times [2020-12-23 16:44:36,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:36,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927937355] [2020-12-23 16:44:36,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:36,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927937355] [2020-12-23 16:44:36,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:36,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:44:36,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067319958] [2020-12-23 16:44:36,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:44:36,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:36,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:44:36,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:44:36,210 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand 4 states. [2020-12-23 16:44:36,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:36,407 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2020-12-23 16:44:36,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:44:36,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-23 16:44:36,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:36,414 INFO L225 Difference]: With dead ends: 80 [2020-12-23 16:44:36,414 INFO L226 Difference]: Without dead ends: 80 [2020-12-23 16:44:36,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:44:36,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-23 16:44:36,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2020-12-23 16:44:36,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-23 16:44:36,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2020-12-23 16:44:36,442 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 87 transitions. Word has length 7 [2020-12-23 16:44:36,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:36,443 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 87 transitions. [2020-12-23 16:44:36,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:44:36,443 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 87 transitions. [2020-12-23 16:44:36,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 16:44:36,444 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:36,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:36,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 16:44:36,445 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:36,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:36,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769743, now seen corresponding path program 1 times [2020-12-23 16:44:36,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:36,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432170809] [2020-12-23 16:44:36,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:44:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:44:36,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432170809] [2020-12-23 16:44:36,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:44:36,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:44:36,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185076831] [2020-12-23 16:44:36,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:44:36,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:44:36,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:44:36,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:44:36,572 INFO L87 Difference]: Start difference. First operand 74 states and 87 transitions. Second operand 4 states. [2020-12-23 16:44:36,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:44:36,721 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2020-12-23 16:44:36,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:44:36,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-23 16:44:36,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:44:36,723 INFO L225 Difference]: With dead ends: 88 [2020-12-23 16:44:36,723 INFO L226 Difference]: Without dead ends: 88 [2020-12-23 16:44:36,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:44:36,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-12-23 16:44:36,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2020-12-23 16:44:36,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-12-23 16:44:36,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2020-12-23 16:44:36,732 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 7 [2020-12-23 16:44:36,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:44:36,732 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2020-12-23 16:44:36,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:44:36,733 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2020-12-23 16:44:36,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 16:44:36,733 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:44:36,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:44:36,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 16:44:36,734 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-23 16:44:36,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:44:36,737 INFO L82 PathProgramCache]: Analyzing trace with hash 673485446, now seen corresponding path program 1 times [2020-12-23 16:44:36,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:44:36,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993451501] [2020-12-23 16:44:36,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:44:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 16:44:36,776 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 16:44:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 16:44:36,795 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 16:44:36,821 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 16:44:36,821 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 16:44:36,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 16:44:36,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 04:44:36 BoogieIcfgContainer [2020-12-23 16:44:36,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 16:44:36,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 16:44:36,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 16:44:36,850 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 16:44:36,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:44:35" (3/4) ... [2020-12-23 16:44:36,853 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 16:44:36,899 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/list-properties/splice-1.i-witness.graphml [2020-12-23 16:44:36,899 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 16:44:36,901 INFO L168 Benchmark]: Toolchain (without parser) took 2692.98 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 54.3 MB in the end (delta: 71.0 MB). Peak memory consumption was 71.6 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:36,902 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 16:44:36,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.32 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 102.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:36,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.13 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 100.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:36,904 INFO L168 Benchmark]: Boogie Preprocessor took 36.98 ms. Allocated memory is still 151.0 MB. Free memory was 100.9 MB in the beginning and 99.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:36,905 INFO L168 Benchmark]: RCFGBuilder took 689.01 ms. Allocated memory is still 151.0 MB. Free memory was 99.1 MB in the beginning and 125.6 MB in the end (delta: -26.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:36,906 INFO L168 Benchmark]: TraceAbstraction took 1179.28 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 56.4 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:36,906 INFO L168 Benchmark]: Witness Printer took 49.81 ms. Allocated memory is still 151.0 MB. Free memory was 55.9 MB in the beginning and 54.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 16:44:36,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 677.32 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 102.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.13 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 100.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.98 ms. Allocated memory is still 151.0 MB. Free memory was 100.9 MB in the beginning and 99.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 689.01 ms. Allocated memory is still 151.0 MB. Free memory was 99.1 MB in the beginning and 125.6 MB in the end (delta: -26.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1179.28 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 56.4 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. * Witness Printer took 49.81 ms. Allocated memory is still 151.0 MB. Free memory was 55.9 MB in the beginning and 54.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); [L534] COND FALSE !(a == 0) [L535] List t; [L536] List l1; [L537] List l2; [L538] List b; [L539] List u; [L540] List p = a; [L541] COND FALSE !(__VERIFIER_nondet_int()) [L554] p->h = 3 [L555] EXPR a->h [L555] COND TRUE a->h == 3 [L555] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 30 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 163 SDtfs, 228 SDslu, 35 SDs, 0 SdLazy, 150 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 457 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...